Filtration element, air cleaner and method of mounting filtration element

FIELD: process engineering.

SUBSTANCE: invention relates to air cleaning. Proposed air cleaner comprises casing, detachable cover and filtration element wherein cover and filtration element interact in rotation so that cover inner surface comes in contact with radial periphery of filtration element. Filtration element comprises two face plugs, filtration medium and outer wall of plug. Note that said outer wall is other than round. Proposed method comprises orienting cover to casing outline and element in contact of inner surface with filtration element inner surface to allow relative rotation.

EFFECT: ruling out of filtration element displacements in casing, better seal.

19 cl, 17 dwg

 

This application was registered on 15 August 2006 as an international patent application on behalf of the company Donaldson Company, Inc. American national Corporation as the applicant for all countries except the USA and the Field name P. Colono, joana, Devi and Volume, Frankena, all citizens of Belgium, as the applicants U.S. only, with the requested priority of European application No. 05107531.5, filed August 16, 2005.

The technical field

The present invention relates to air cleaners, including housing and filter elements, in particular, the present invention relates to air cleaners for air filtration, air intake manifold of the engine.

Background of invention

As a rule, machines, vehicles or other equipment, which is driven by the internal combustion engine with a system for filtering air entering through the air intake into the engine. Such devices air filter, which is commonly referred to "air cleaner", is mainly used for separating dust and other solid particles from the air that enters the engine. Air cleaners typically include a housing and a system of replaceable filter elements. Usually, air purifiers are designed so that the filter elements mo the ut to be removed and replaced with new. Compressor system usually includes two duct, which is included in the system filtration: filtration of intake air into the engine, and the air entering the compressed air system with a receiver. For these systems, air purifiers are also highly desirable.

Sometimes in some environmental conditions air purifiers are subjected to considerable vibration. For example, if the cleaner is used for a truck for normal roads, the contact between the tyres and the road can cause vibration. Vibration may be even stronger in vehicles for off-road. The combination of different factors can contribute to the vibration of the air cleaner.

In the presence of vibration filter elements can be moved within the housing of the air cleaner. Sometimes the filter element can rotate in the housing. Any movement of the filter element in the housing is undesirable because it may break the seal between the filter element and the housing or contribute to damage to the filter otherwise. Need a cleaner that is free from these disadvantages.

Summary of invention

One purpose of the invention is to provide a filter element having a structure that prevents rotation of the filter element, which is installed in the housing. In odnawiane filter element has first and second end caps, moreover, the end cap has an outer wall surrounding an elongated tubular envelope for the filter medium, and the outer wall is non-circular.

In some preferred embodiments, the outer wall defines at least one upper point, in other embodiments, the outer wall defines a set top points. In some embodiments, the external wall has the shape of a polygon. In addition, in some embodiments, the external wall has the shape of a regular polygon.

In one embodiment, the outer wall has a first section and a second section extending from the first section, the first section has a non-circular shape, and the second section has a round shape.

In some embodiments, the second end cap includes an axial portion having a Central region with a closed recess within the open interior portion of the filter, and a ledge extending along the axis from the Central region.

Another objective of the invention to provide an air cleaner. The air cleaner includes a body housing, a removable cover and a filter element mounted in the body casing with the possibility of removal. Cover and filter element rotationally interact with each other by contact of the inner surface of the cover with the outer radial periphery of the filter element.

In one embodiment, the outer radial the periphery of the filter element is non-circular, and the inner surface is non-circular.

In another embodiment, the filter element has first and second end cap, the first cap has an open part and a sealing part that passes radially into the open portion forming a radial seal with the body of the hull.

In yet another embodiment, the external wall of the second end cap defines a set top points and the inner surface of the cap defines a set top points. In some embodiments, the external wall of the end cap defines a regular polygon, and the inner surface of the cover defines a regular polygon.

In one embodiment, the second cap includes an axial portion having a Central region with a closed recess within the open interior portion of the filter, and a ledge extending along the axis from the Central region. The cover includes a protrusion, which is closed recess of the second end cap. In one embodiment, the cover defines a recess oriented with the expectation of receiving the protrusion of the second end cap.

In some embodiments, the air cleaner further includes a protective element, included in the inner part of the filter element.

Another aim of the invention is to provide a method of installing a filter element into the housing. The method includes op the operational orientation of the filter element in the body housing and the orientation of the cover element and the body of the housing. Stage orientation of the cover element and the body housing includes a contact the inner surface of the cover with the outer radial periphery of the filter element to rotate relative to each other.

In some embodiments, stage contact the inner surface of the cover with the outer radial periphery of the filter element to rotate relative to each other includes a contact end cap to a filter element having an outer wall in the form of a regular polygon against the inner surface of the cover, and the inner surface has the shape of a regular polygon.

Brief description of drawings

Figure 1 is a perspective representation of the air cleaner disassembled, including a housing and a filter element made in accordance with the principles of the present disclosure;

figure 2 is a view in vertical section of an air cleaner of figure 1 in assembled state;

figure 3 is a view in cross section of the air cleaner shown in figure 1, in cross section along the line 3-3 of figure 2;

figure 4 is an enlarged view in transverse section showing the connection between the filter element and the housing cover, the section along the line 4-4 of figure 3;

figure 5 is a view in vertical section of the filter element used in the Assembly of the filter of figure 1;

figure 6 is a view in aparecem section of the filter element, shown in figure 5, a transverse section along the line 6-6 of figure 5;

figure 7 is an enlarged view in cross section of the second end cap of the filter element shown in figure 6;

figure 8 is an enlarged view in cross section of the first end cap, shown in figure 6;

figure 9 is a side view in vertical section on the housing cover, used in the Assembly of figure 1;

figure 10 is a schematic partial side view in vertical section of a second variant of the filter element installed in the housing cover;

figure 11 is a schematic view in cross section of the element that is installed in the cover, the cross-section along the line 11-11 of figure 10;

figure 12 is a schematic view in cross section showing the connection between the filter element and the housing cover, the cross-section along the line 12-12 of figure 10;

figure 13 is an enlarged view in cross section of a junction between the filter element and the cover, taken along the line 13-13 of figure 12;

figure 14 is a view in vertical section and partial section of the filter element shown in figure 10;

figure 15 is an enlarged view in cross section of part of the filter element, the cross section along the line 15-15 of figure 14;

figure 16 is a view in transverse section of the cover shown in figure 10; and

figure 17 is a view in cross section of the Asti cover figure 16, the cross-section along the line 17-17 of figure 16.

Detailed description of the invention

In figure 1 the air cleaner 10 is shown in a partially disassembled. The air cleaner 10 has a body 12 and a removable and replaceable filter element 14. In the shown embodiment, the housing 12 includes a body housing 16 and the cover of the service 18. When servicing filter cap 18 serves for access to the interior of the housing 16. For the universal air cleaner 10 of the type shown in figure 1, the service filter mainly includes the dismantling and removal from the housing 12 at least one filter element, such as filter element 14, shown in this drawing, for repair or replacement.

Shown in the drawing, the body 12 comprises an outer wall 20, an air inlet pipe 22 and outlet air pipe 24. In the form shown in the drawing embodiment, the inlet pipe 22 and the outlet 24 are both in the body of the housing 16. In other embodiments, at least one of them is the exhaust pipe 22 and the outlet 24 may be part of the cover 18. In normal use, surrounding or unfiltered air enters the air cleaner 10 through the inlet pipe 22. In the air cleaner 10, the air flows through the filter element 14, in order to achieve the desired level of removal of particulate. Filtered who is uh then exits the air cleaner 10 through the exhaust pipe 24 and is directed through suitable tubing or piping to the inlet of the air intake for admission to the specified engine or compressor or in another system.

The specified air cleaner 10 shown in the drawing, has an outer wall 20 in the form of a drum or has a generally cylindrical configuration. In this particular configuration the outlet 24 can be described as an axial discharge port, because it basically takes place in the direction along the Central axis and limits the Central axis defined by the filter element 14.

Cover maintenance 18 basically closes the open end 26 of the housing 16. In the specific device shown, the cover 18 is fastened in place on the end face 26 of the latches 28. Figure 9 shows a side vertical section of a variant cover maintenance 18 including a latch 28.

The figure 3 shows a partial longitudinal section of the air cleaner 10. Now to figure 3 it can be seen that the housing 16 defines an inner portion 30 of the air cleaner 10. In the inner part 30 of the concrete shown on the drawing of the air cleaner 10 is the filter element 14, through which during operation of the engine, the air goes. In this embodiment also shows an additional or secondary protective filter element 32.

Here the terms "filter element" or "element" means a removable, replaceable component, which contains a gasket filter, through which the filtered air coming from the exhaust pipe 22 through the inner part 30 to the exhaust pipe with the element 14, performing the filtering function of the air (or dust). Unless otherwise specified, the terms "element", "filter element" and "filter" refers to a removable and replaceable component of the air cleaner 10. Preferably, the filter elements are formed in such a way that they can be removed and replaced manually at the appropriate time of service.

Here, the term "primary element" generally refers to a filter element, in which a large part of the dust is absorbed during operation of the cleaner. In standard systems, which have two elements, the primary element is installed upstream from the secure element during normal Assembly. "Upstream" in this context means that because of the position of the filter element, the configuration of the air cleaner and location of seals during use the air basically need to go through the primary element before it will pass through the protective element when the air passes from the inlet pipe 22 to the outlet.

Here, the term "protective element" refers to an element downstream from the primary element. Typically, the protective element is deposited a very small amount of dust and mostly it works only as a result of the failure of a part of the primary element or as a result of seal failure, or accidental is viginia dust during operation of the primary element, or some other fault.

The protective element 32, shown in figure 3, is characterized by the cylindrical filter medium or gaskets 34, defining an open inner portion 36 of the filter. Gasket filter 34 is placed between the open end cap 38 and the closed end cap 40. Filter medium 34 used in the protective element 32 may be corrugated medium, deep, felt or any other type of environment, as defined by the creators of the air cleaner 10.

The protective element 32 operatively mounted in the housing 12 and may be it is sealed with a possibility of subsequent depressurization for periodic removal and replacement of a new protective element 32. The seal 42 is located between the protective element 32 and the housing 12. Although it can be used many different types of seals, shown in the drawing embodiment, the seal 42 is a radial seal 44; specifically, it is directed outward radial seal between the open end cap 38 and the inner wall 46 of the housing 16. In the form shown in the drawing version of the closed cover 40 of the protective element 32 is generally flat disk 48. In some embodiments, the closed cap 40 may include a protrusion that comes in contact with part of the primary element 14. Note the p contact between the protective element 32 and the primary element 14 is described in U.S. patent No. 6652614, incorporated herein by reference.

Refer now to figures 5-8, in which the filter element 14 is depicted in detail. Figure 5 is a side view of the filter element 14 with a closed end. Shown in the drawing, the element 14 has an indoor 50 and the open ends 52 (figure 6). In the shown embodiment, the open end 52 of the first end cap 54, as shown in the drawing embodiment, the closed end 50 is defined by end cap 56. The figure 5 also shows the ornamentation 57 to provide an attractive view of the element 14. Specific ornamentation 57 is also the hallmark of the patent, i.e. companies Donaldson.

Between the first plug 54 and end cap 56 passes tubular cartridge filter medium 58. In the form shown in the drawing embodiment, the tubular cartridge filter medium 58 has a cylindrical shape; in other embodiments it may be, for example, conical or oval. Tubular cartridge filter medium 58 defines an inner open portion of the filter 60. In the variant shown in figure 3, the inner open portion of the filter 60 is used for placing a protective element 32. In this option can be used various types of filter medium 58 such as gaskets filter 58, shown in the form of a corrugated medium 62. Corrugated medium 62 may pleating what I'm made of paper or cellulose.

In the variant shown in figure 6, between the first end cap 54 and end cap 56 is a bearing of the internal environment or sleeve 64. The inner sleeve 64 helps the environment 58 to withstand the operating pressure and other mechanical effects. The inner sleeve 64 may be non-metallic or made of metal, for example of expanded metal sheet.

In a specific embodiment, is shown in figure 6, between the first end cap and second end cap 56 is located external sleeve, which is the external pillar of the filter 66. The outer sleeve 66 supports the filter medium 58. The outer sleeve 66 may be non-metallic, for example, of plastic; alternatively it may be made of metal, made of expanded metal. As you can see from the image option in figure 6, the outer sleeve 66 restricts the filter medium 58, while the filter medium 58 surrounds the inner sleeve 64.

The filter element 14 is fixed in the housing 12 with the ability pickup and seal 68 (figure 3). The seal of the filter element 14 in the housing 12 can be implemented in different ways. In the form shown in the drawing version of the radial seal 70 is formed between the element 14 and the housing 12. Specifically directed inward radial seal 70 is formed between the first end what igluski 54 and the inner wall 46 of the housing 16.

In the form shown in the drawing version of the closed cover 40 of the protective element 32 is a generally flat disk 48. In some embodiments, the closed cap 40 may include a protrusion that comes in contact with part of the primary element 14. Example of contact between the protective element 32 and the primary element 14 shown in U.S. patent No. 6 652 614, incorporated herein by reference.

With reference to figures 5-8, the filter element 14 is described below in more detail. The figure 5 shows the end view on the filter element 14 in the closed position. Shown in the drawing, the element 14 has a closed end 50 and an open end 52 (figure 6). In the shown embodiment, the open end 52 is determined by the first plug 54, while the closed end 50 is defined by an end closure 56. The figure 5 also shows the ornamentation 57 displaying attractive quality element 14. Specific ornamentation 57 is also the hallmark of the patent, the company Donaldson.

Between the first end cap 54 and end cap 56 passes tubular cartridge filter medium 58. In the form shown in the drawing embodiment, the tubular cartridge filter medium 58 has a cylindrical shape, and in other embodiments it may be, for example, conical or oval. Tubular cartridge filter medium 58 defines an inner open the art of filter 60. In the variant shown in figure 3, the inner open portion of the filter 60 is used for placing a protective element 32. In this option can be used various types of filter media 58, such as a gasket filter 58 in the form of a corrugated medium 62. Corrugated medium 62 may plastiroute of paper or pulp.

In the variant shown in figure 6, between the first end cap 54 and end cap 56 is a bearing of the internal environment or sleeve 64. The inner sleeve 64 helps the environment 58 to withstand the operating pressure and other mechanical effects. The inner sleeve 64 may be non-metallic or made of metal, for example of expanded metal sheet.

In a specific embodiment, is shown in figure 6, between the first end cap and second end cap 56 is located external sleeve, which is the external pillar of the filter 66. The outer sleeve 66 supports the filter medium 58. The outer sleeve 66 may be non-metallic, for example, of plastic; alternatively it may be made of metal, made of expanded metal. As you can see from the image option in figure 6, the outer sleeve 66 restricts the filter medium 58, and a filter medium 58 surrounds the internal lining 64.

The filter element 14 is fixed in the housing 12 with the ability pickup and fitted at what latenium 68 (figure 3). The seal of the filter element 14 in the housing 12 can be implemented in different ways. In the form shown in the drawing version of the radial seal 70 is formed between the element 14 and the housing 12. Specifically directed inward radial seal 70 is formed between the first end cap 54 and the inner wall 46 of the housing 16.

In the form shown in the drawing embodiment, the inner surface 84 has the shape of a polygon; specifically, it has the shape of a regular polygon. As can be seen in figure 4, due to the shape of the outer radial periphery 78 of the element 14 and the shape of the inner surface 84 of each exhaust out the top 80 of the filter element 14 enters the groove 86 in the upper part of the inner surface 84 of the cover 18. This device secures the element 14 relative to the cover 18 to prevent rotation of the cover 14 relative to the cover 18. The cover 18 is attached to the housing 16 by a latch 28 for preventing rotation of the cap 18 relative to the housing 16. Thus, the element 14 cannot rotate relative to the housing 12, including both the housing 16 and the cover 18.

With reference to figures 6 and 7 shown in the drawing embodiment, the outer wall 76 of the second end cap 56 has a first section 90 and a second section 92. The first section 90 of the corresponding outer radial periphery 78 has a non-circular shape, to ora comes in contact with the inner surface 84 of the cover 18. The second section 92 moves away from the first section 90. In the shown embodiment, the first section 90 is directly adjacent to the closed end 50, while the second section 92 extends from the first section 90 and is separated from the closed end 50 of the first section 90. In the variant shown in figure 7, the first section 90 is pressed against the outer sleeve 66, while the second section 92 radially removed from the outer sleeve 66 and the filter medium 58. The second section 92 may have the same shape as the first section 90, or it may have a shape matching the shape of the filter medium 58, for example, cylindrical (circular cross section).

The second section 92 is part of a pre-cleaner for cleaning the air in the air cleaner 10. Specifically, and as shown in figure 3, the air cleaner 10 has a dust ejector 94, as part of the housing 12, in particular as part of the cover 18. To be filtered air enters the housing 12 through the inlet pipe 22, with pre-cleaner 96 (figure 3) helps to separate large particles of dust and retrieve them through the ejector 94 dust before they reach the primary element 14. Specifically, the second section 92 of the outer wall 76 provides the rotation of the incoming air or turbulence around the second section 92. This rotation of air around the second section 92 generates centrifugal forces that cause particles of dust pad is to be on the bottom 98 of the housing 12, whence they are removed through the outlet of the ejector 100 in the cover 18 and then through the vacuum valve 102.

Shown in figure 6, the second cap 56 includes an axial portion 104, generally perpendicular to the outer wall 76. The axial portion 104 has a Central portion 106 with a closed recess 108, the incoming internal public portion of the filter 60. Closed recess is distance at least equal to 30 mm, preferably 40-80 mm along the axis from the upper point 110 closed end 50. In the form shown in the drawing embodiment, the Central portion 106 further includes a protrusion 112 passing through the axis from the Central region 106. In the form shown in the drawing version of the protrusion 112 moves at least 10 mm, for example 12-30 mm from the inner part 114 of the closed recess 108.

In the form shown in the drawing variant cover 18 includes structure for coupling with an end closure 56 to create a lateral support for the filter element 14 in position in the housing 12 with a defined radial seal 70. In the variant shown in figure 3, the cover 18 includes a protrusion 116, which is a closed recess 108 of the second end cap 56. Preferably, the cover 18 also defines a recess 118 that is designed to receive the protrusion 112 of the second end cap 56. As can be seen in figure 3, when the protrusion 116 is in a closed deepening 08 and when the protrusion 112 is included in the recess 118, this helps to hold the filter element 14 to the desired location on the wall 46 with a defined radial seal 70.

To install the filter element 14 into the housing 12, the filter element 14 is operatively oriented in the body of the housing 16. This operation involves the formation of a seal 68 between the element 14 and the housing 12. In the example shown, the radial seal 70 is formed by compressing the first end cap 54 between the outer sleeve 66 and the wall 46 of the housing. Then cover 18 is guided by the element 14 and the open end 26 of the housing 16. Stage orientation of the cover 18 to the element 14 and the body housing 16 includes a contact the inner surface 84 and the filter element with the outer radial periphery 78 rotatably relative to each other. For example, the second end cap 56 of the filter element 14 has an outer wall 76 with at least one upper point 80. This top point 80 aligned oppositely oriented upper point 86 on the inner surface 84 of the cover. In the example shown in figure 4, the phase contact of the inner surface 84 and the filter element with the outer radial periphery 78 includes a contact element having the shape of a regular polygon on the outer wall 76 against the right of the polygon on the inner surface of the cover 84.

For service in the of zduchovice 10 cover 18 is removed from the housing 16, releasing the latch 28. The filter element 14 is then taken by the hand and pulled through the open end 26 of the housing 16. This action releases the radial seal 70. Clogged filter element 14 then thrown away. If you will use the protective element 32, the removal of the element 14 from the housing 16 opens the protective element 32. If desired, the protective element 32 may also be removed from the housing 16 and is extruded through the open end 26, freeing radial seal 44. Then maybe you installed a new protective element 32, inserting it through the open end 26 of the housing 16 and forming a radial seal 44. After that prepared the new element 14 and is installed in the chassis 16 by placing the inner open portion of the filter 60 over the protective element 32, then forming a radial seal 70, the pressing surface portion 72 of the first end cap 54 to the housing wall 46 to form a radial seal 70. Thus, the filter element 14 is locked for rotation relative to the cover 18, orienting the cover 18 to the element 14 and connecting the outer radial periphery 78 relative to the inner surface 84 of the cover 18. Then snap the latches 28 to lock the cover 18 relative to the housing 12.

In figures 10-17 shows a second variant of the coupling device between the filtering element of the MD 214 and a cover 218. In contrast to the above-described construction, discussed below element 214 is identical with the described embodiment of the element 14, and the cover 218 is identical with the cover 18.

In figures 10-13 filter element 214 is shown as operatively mounted in the lid 218. Figures 14 and 15 illustrate the filter element 214, and figures 16 and 17 illustrate the cover 218.

As in the variant shown in figures 1-9, the filter element 214 has an outer wall 276, which limits the tubular cartridge filter medium 258 (figure 11). Again, as is the case in figures 1-11, the outer wall 276 defines at least one upper point 280 and preferably many top points 280. In variant shapes 10-15 outer wall 276 includes at least one edge 300, leaving her in a preferred embodiment, at least one edge 300 includes a set of edges 300, extending from the outer wall 276. In the preferred implementation shown in figures 10-15, the number of edges 300 less than the number of top points 280. In the form shown in the drawing embodiment, each of the ribs 300 are aligned with the corresponding one of many top points 280. In the shown preferred embodiment, any portion of the surface at the upper point of 280 includes a rib 300, aligned on this top. The purpose of ribs 300 will be described below.

On Figo is Ah 16 and 17 show the cover 218. Cover 218 has a design similar to the design of the cover 18, with the exception of the ventilation grooves 302. As in the embodiment in figures 1-9, the cover 218 has an inner surface of the cover 284, which is non-circular. The inner surface of the cover 284, as in the embodiment in figures 1-9, defines at least one upper point 286 and preferably many top points 286. Many top points 286 shown in the drawing version evenly distributed on the inner surface 284 of the cover 218. In a variant on the figures 10-17 inner surface of the cap 284 also defines at least one ventilation groove 302. In the shown embodiment, at least one ventilating groove 302 is aligned with at least one of many top points 286 on the inner surface of the cover 284. Preferably, and as shown in the drawing, in this embodiment, there is plenty of ventilation grooves 302, with one corresponding to the ventilation groove 302 is aligned with the corresponding upper point 286 on the inner surface of the cover 284.

In operation, when the element 214 is assembled with the cover 218, ventilation grooves 302 allow air to exit the volume or to enter the volume between the element 214 and the cover 218 when installing or removing the cover 218. Without ventilation slots 302 air can accumulate in the volume between the cover 218 and the element 24. Without ventilation slots 302 when removing the cover 218 of the element 214 in the volume between the cover element 218 and 214 could be created in a vacuum, because this volume very slowly filled with air. The ventilation grooves 302 to avoid ingress of air into the volume between the element 214 and the cover 218.

In addition, at least some of the ventilation grooves 302 are used for the reception of ribs 300 in element 214. In the variant in figures 1-9, without ribs 300, you can sometimes move the lid of service 18 on the cleaner through the element 14 in the closed position and the hook latch. This leads to the fact that the element 14 is mechanically locked in the lid of service 18. Removing the covers maintenance 18 element 14 remains attached to the lid 18 and becomes difficult to remove it from the cover 18. Fin 300 in the upper part of the element 280 prevents the element 214 from planting it in place when the top 280 narenthiran relative to the upper portions 286 of the cover 218. In the shown exemplary embodiment, the ribs 300 are located on each of the second upper point 280, to ensure that the ventilation slots 302.

1. Filter element (14, 214), containing a tubular cartridge for filter media (58), determining its open part (60); the first end cap (54)attached to the tubular cartridge for filter media, the first end cap to define the em hole (74), in communication with the open interior of the cartridge; a second stub (56)attached to the tubular cartridge for filter media opposite the first end cap, and the second cap is a closed end cap without passing through her holes, characterized in that the second stub (56) comprises an outer wall (76, 276)surrounding the tubular cartridge for filter media (58, 258), the external wall consists of a set of vertices (80, 280) and is equipped with a set of edges (300), and the number of edges is less than the number of vertices, with each of ribs (300) is located on the same axis with the corresponding vertex from the set of vertices (280).

2. The filter element according to claim 1, in which the external wall (76, 276) has the shape of a polygon.

3. The filter element according to claim 1, in which the external wall (76, 276) has the shape of a regular polygon.

4. The filter element according to claim 1, in which the external wall (76, 276) has a first section (90) and second section (92)extending from the first section while the second section (92) has a round shape.

5. The filter element according to claim 1, in which the second end cap (56) includes an axial portion (104)having a Central region (106) with a closed recess (108)within the open interior of the cartridge (60)and the protrusion (112)passing through the axis from the specified Central region (106).

6. The filter element according to claim 1, inwhich:
(a) the first end piece (54) is provided with a sealing part (72), with the sealing portion radially enters the eye;
(b) a tubular cartridge for filter media (58, 258) comprises a cylindrical filter gasket of the corrugated medium (62); and
(c) a filter element further includes an inner sleeve (64) and outer sleeve (66), with a cylindrical gasket of the corrugated medium placed between them.

7. Air cleaner (10), containing the body of the housing (16); a removable lid (18, 218), installed in the housing and having an inner surface (84); a filter element (14, 214)mounted in the housing with the possibility of renting and having external radial periphery (78), characterized in that the cover (18, 28) and filter element (14, 214) are connected to each other by contact between the inner surface of the cap (84, 284) and the outer radial periphery of the filter element (78)defined by the outer wall (76, 276) end cap (56) of the filter element, the outer wall includes a set of vertices (80, 280) and is equipped with a set of edges (300)and the inner surface of the cover (284) has at least one ventilation groove (302)located on the same axis, at least one of the sets of vertices (286) on the inner surface of the cover (284).

8. Air cleaner according to claim 7, in which the inner surface of the cu is the loud (84, 284) has the shape of a polygon.

9. The air cleaner of claim 8, in which
(a) a filter element (14, 214) includes:
(i) a tubular cartridge for filter media (58, 258), determining its open inner portion (60);
(ii) the first end cap (54)attached to the tubular cartridge for filtration media;
(iii) the second end cap (56)attached to the tubular cartridge for filter media opposite the first end cap;
(A) the second end cap (56) is a closed end cap without hole passing through it;
(B) external wall (76, 276) the second end cap (56) surrounds the tubular cartridge filter medium (58).

10. Air cleaner according to claim 9, in which:
(a) the first end piece (54) defines:
(i) hole (74)that communicates with the open interior of the cartridge (60); and
(ii) sealing portion (72);
(A) sealing portion (72) is radially into the bore (74) and forms a radial seal (70) with housing (16).

11. The air cleaner of claim 10 in which the inner surface of the cap (284) has plenty of ventilation grooves (302), one corresponding to the ventilation groove (302) is located on the same axis with a corresponding one of the sets of vertices (286) on the inner surface of the cover (284).

12. Air cleaner according to claim 11, in which:
(a) the number of edges of the outer wall (276) m is Nise number of vertices (280), thus each of the ribs (300) is located on the same axis with the corresponding vertex from the set of vertices (280), and
(b) every edge (300) as part of the appropriate ventilation groove (302) on the inner surface of the cover (284).

13. Air cleaner according to claim 9, in which:
(a) external wall (76, 276) the second end cap (56) has the shape of a regular polygon, and
(b) the inner surface of the cover 84, 284) has the shape of a regular polygon.

14. Air cleaner according to claim 9, in which:
(a) the second end cap (56) includes an axial portion (104), with:
(i) Central region (106) with a closed recess (108)within the open interior of the cartridge (60); and
(ii) a protrusion (112)passing through the axis from the specified Central region (106), and
(b) cover (18, 218) includes a protrusion (116), which is closed recess (108) the second end cap (56).

15. Air cleaner according to 14, in which the cover (18, 218) is made with a recess (118), intended to receive the protrusion (112) the second end cap (56).

16. Air cleaner according to claim 7, further containing a protective element (32), located in the inner part (60) of the filter element (14, 214).

17. The method of installation of the filter element (14, 214) in the housing (12)comprising the body of the housing (16) and a removable lid (18, 218)having an inner surface (84, 284), while the filter element is in the cancel external radial periphery (78), moreover, the method includes the following stages:
Orient the filter element in the body of the case and Orient the cover element and the body of the housing, characterized in that at the stage of orientation of the lid (18, 218) element (14, 214) bring into contact the inner surface (84, 284) of the lid (18, 218) and the outer radial periphery of the filter element (78)defined by an external wall (76, 276) end cap (56) the filter element having a rib (300),
protruding from her opposite inner surface of the cover having the shape of a polygon and the ventilation grooves (302), in which edges (300).

18. The method according to 17, in which the phase orientation of the filter element (14, 214) in the body of the housing (16) includes forming a radial seal (70) between the filter element (14, 214) and the body of the housing (16).

19. The method according to 17, in which stage of contact of the inner surface (84, 284) cover and filter element from the outer radial periphery (78) includes a contact end cap (56) filter element (14, 214)having an external wall (76, 276) in the form of a regular polygon, and the inner surface of the cover 84, 284), also having the shape of a regular polygon.



 

Same patents:

FIELD: technological processes.

SUBSTANCE: invention relates to oil separator of railless vehicle air preparation device, device of air preparation and device of compressed air supply. Device of air preparation comprises valve box at least with one outlet connection element for compressed air consumer and filtering device, in particular for drying of compressed air supplied to its consumer, and oil separator comprises coupling device, with the help of which it is connected to filtering device, and also additional coupling device, with the help of which it is connected to valve box, inlet connecting element, outlet connecting element, the first chamber, in which there are air guide facilities arranged, and the second chamber, from which cleaned air in the first chamber is sent to filtering device.

EFFECT: easy and reliable embedding of oil separator into air preparation device, improved separation of contaminants.

18 cl, 16 dwg

FIELD: mechanical engineering; engines.

SUBSTANCE: relates to methods of manufacture of air cleaners with filtering elements mainly of panel-type for cleaning air getting into internal combustion engines of road vehicles, and into devices in which proposed methods can be implemented./ proposed method comes to preliminary manufacture of filtering element including the following operations: bending of tape of filtering material at preset pitch, corrugating of tape in corrugating device and folding material along bending lines, placing filtering element, thus made, between two housing halves, lower and upper ones, made of plastic by injection molding method, hermetically connecting housing halves by fasteners and mounting of mass meter in zone of cleaned air on upper housing half. Novelty is that air is delivered under pressure inside air cleaner to zone of non-cleaned air through air inlet branch pipe of lower housing half before mounting air mass meter on upper housing half, and blowing out of filtering element and inner surface of upper housing half is carried out to provide complete cleaning of their surfaces from side of zone of cleaned air of upper housing half. Blowing air can be delivered in pulsating manner. Then air gets out through air outlet branch pipe of upper housing half into ambient atmosphere, after which air delivery into space of air cleaner is stopped and air mass meter is mounted which is hermetically closed by dummy stopper. Invention contains description of device by means of which proposed method can be industrially implemented.

EFFECT: provision of device for reliable cleaning of air.

4 cl, 4 dwg

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed air cleaner of internal combustion engine contains filtering element secured inside sectional envelope, one half of which has air supply branch pipe, and second one, air supply and air discharge branch pipes. Halves of envelope are connected to each other by flexible catches uniformly spaced in cutouts of connecting flange of one half fitted in retainers of other half through cutouts in its connecting flange to permit arrangement of halves at different angles relative to one another. Thin-walled skirt made in one half of envelope projects beyond the limits of connecting flange whose outer surface is in contact with inner surface of other halt. Catches on one and retainers on other half are spaced relative to each other through 30°C. Thickened portions are found on free end of catches, and cavities are made in retainers in place of their contact with second half. Undercut is made in center of bottom of first half, side surface of which is in contact with inner surface of seal of filtering element. Support branch pipe is made inside second half concentrically to air discharge branch pipe, outer surface of which is in contact with inner surface of second seal of filtering element. Halves of sectional envelope are made of polymeric material.

EFFECT: simplified design, reduced cost of production.

6 cl, 3 dwg

Air cleaner // 2282049

FIELD: mechanical engineering; air cleaners.

SUBSTANCE: invention relates to air cleaners for internal combustion engines used in vehicles and stationary installation with filtering elements in form of porous cardboard as final cleaning stage. Design peculiarity of air cleaner is that precleaning stage includes volumetric type filtering elements made of open-pore plastic, for instance, foamed polyurethane, with mean diameter of pores of 4.0-0.2 mm and nonwoven materials with surface density of 100-700 g/sq. m and volumetric density of 0.03-0/15 g/cu. M, and allowance coefficient not exceeding standard value equal to 0.4% on guartz dust with specific surface of 5600 sq.cm/g. Said filtering elements are arranged in series.

EFFECT: increased service life of air cleaner till replacement of servicing of filtering elements made of porous cardboard.

2 dwg

FIELD: mechanical engineering; internal combustion engines.

SUBSTANCE: proposed two-stage air cleaner of internal combustion engine contains cyclone device in its first cleaning stage assembled of separate cyclones built into tube plates. Each cyclone has housing with inlet branch pipe and outlet pipe. Cassettes are installed in series in second stage. Housings of cassettes are filled up with corrugated wire differing in density for each cassette, and dust suction hopper and outlet branch pipe are provided. Cyclones is cyclone device are made with ratio of diameters of outlet branch pipe and outlet pipe (D1/d1) equal to 1.6. Distance h from axis of projections on surface to cut is within 6.7-7.5 mm. Outlet edges of outlet branch pipe and outlet pipe at building-in into tube plates are made in form of arc of circumference, radius R=1.5-2.5 of wall thickness. Cyclone device is divided into two sections with formation of intersection space where pitch of cyclones in each section is 1.06-1.09 of outer diameter of cyclone housing, and distance between cut of outlet pipe of each cyclone and lower plane of air inlet into first of two cassettes of second cleaning stage is not less than 1.4 of diameter of cyclone outlet pipe. Dust suction hopper is provided with stamping, being made with tilting in direction of dust at suction.

EFFECT: increased time of operation of air cleaner to maximum restriction, reduced dust escape factor.

4 dwg

FIELD: air cleaners for internal combustion engines.

SUBSTANCE: proposed filter has housing attached to engine and provided with cover; filter element arranged inside said housing is made in form of concentric external and internal perforated cylinders with multi-beam paper curtain located in between them, upper and lower elastic covers rigidly mounted on end faces of perforated cylinders and filter cloth in form of tubular knitted fabric of rib weave from polymer non-stretchable and elastomer fibers located on outer surface of external cylinder; tubular knitted fabric is made by rib weave and stitches form through pores where stitches of right side exceed those of wrong side by 1.5-3 times; additional elastomer weft fiber is laid in between stitches of right and wrong sides.

EFFECT: improved quality of cleaning air at increased revolution of engine.

2 dwg

The invention relates to mechanical engineering, in particular to the automotive industry and can be used as an air filter for internal combustion engines with positive ignition of the combustible mixture

The invention relates to engine, in particular for internal combustion engines

Air cleaner // 2218474
The invention relates to devices air cleaning from dust, condensed moisture, snow, and can be used for pre-cleaning of air entering the internal combustion engine, the air supply electrical vehicles and generator sets for General industrial use

The invention relates to engine, particularly to filter elements air cleaners

FIELD: process engineering.

SUBSTANCE: invention serves to separate impurities from gases and fluids. Proposed apparatus comprises closed vessel accommodating partition dividing it into first and second separation stages, inlet and outlet holes and cylindrical filtration element. Said filtration element comprises central bore-channel running between opposite ends of filtration element. Note here that said central bore is surrounded by filtration material representing coal blocks which, in its turn, is surrounded by protective filtration material with wavy-grained pores. The latter is made up of sheets of nonwoven material consisting of the mix of base fiber and binder material to be compacted to form preset-porosity sheet. Said protective filtration material represents a tube consisting of multiple coiled sheets. Note here that each sheet is heated and compacted to bind base fibers into porous filtration material.

EFFECT: higher efficiency of filtration.

15 cl, 3 dwg

FIELD: process engineering.

SUBSTANCE: invention is intended for filtration. Said flow device consists, mainly of vessel with cover furnished with fluid inlet and outlet and detachable tubular flow element fitted in aforesaid vessel and provided with fluid treatment material. Said element is arranged nearby said cover to make a partition between element inside cavity communicated with inlet and element outside cavity communicated with outlet. Element inside cavity accommodates a tube that continues the inlet and runs, mainly axially along aforesaid element. Said tube has lateral channels to uniformly distribute fluid to be treated along flow element. Aforesaid tube has narrowing cross section along axial direction of fluid flow in tube. Element outside cavity communicates with outlet via channel arranged in circular flange fitted on the cover.

EFFECT: higher efficiency.

13 cl, 4 dwg

FIELD: technological processes.

SUBSTANCE: invention relates to oil separator of railless vehicle air preparation device, device of air preparation and device of compressed air supply. Device of air preparation comprises valve box at least with one outlet connection element for compressed air consumer and filtering device, in particular for drying of compressed air supplied to its consumer, and oil separator comprises coupling device, with the help of which it is connected to filtering device, and also additional coupling device, with the help of which it is connected to valve box, inlet connecting element, outlet connecting element, the first chamber, in which there are air guide facilities arranged, and the second chamber, from which cleaned air in the first chamber is sent to filtering device.

EFFECT: easy and reliable embedding of oil separator into air preparation device, improved separation of contaminants.

18 cl, 16 dwg

FIELD: technological processes.

SUBSTANCE: invention is intended for removal of aerosols and/or soaked soluble solid substances from moving gas flow. Unit with fibrous layer for mist eliminator comprises support of fibrous layer, having wall that creates space arranged upstream, and space arranged downstream, besides wall has openings, which make it possible for the gas flow to mostly move freely through wall from space arranged upstream, into space arranged downstream; fibrous layer supported by this support of fibrous layer and mostly closing openings of wall so that gas flow passes through this fibrous layer, moving from space arranged upstream, into space arranged downstream. Fibrous layer comprises collecting fibrous medium and drainage medium arranged at lower downstream side of fibrous medium. Drainage medium comprises leak-through strips along height of fibrous layer, besides these leak-through strips are arranged so that they form coverage areas, in which one of leak-through strips covers neighbouring leak-through strip.

EFFECT: high efficiency and prevention of repeatedly carried-over liquid leak out of mist eliminator.

16 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to fluid medium cleaning devices. Proposed flow device consists of casing (2). The latter consists of head (3) with hook-like inlet channel (5), which has inlet (6) and outlet (7), and outlet channel (8) with inlet (9) and outlet (10), and vessel (4) arranged on (3) and furnished with replaceable cartridge representing tubular active flow element (20). Vessel (4) accommodates chamber (30) arranged around said active flow element (20) and cover (21), active element being communicated with outlet channel (8). Aforesaid cover (21) constrains, on one side, flow channel (22) with inlet hole (23) communicated with outlet (7) of inlet channel (5) of head (3) and directed mainly across axial direction of flow element (2). Cover (21) constrains, on the other side, channel (22) with outlet hole (24) communicated with inner chamber of active flow element (20). Inlet hole (23) of flow channel (22) of cover (21) is arranged off-center with respect to axis (B-B') of flow element (20). Inlet hole (24) of flow channel (22) is arranged at the center. Flow channel (22) in cover (21) features flow section varying from inlet hole (23) towards outlet (24) and, first, decreasing longitudinally, and, then increasing up to outlet hole (24).

EFFECT: higher efficiency.

10 cl, 6 dwg

FIELD: process engineering.

SUBSTANCE: proposed fog catcher comprises fiber optic layer made up of multi-layer tape comprising accumulating layer that can not be pierced by needle. Said fiber optic layer can be very thin, yet with high efficiency of removing minor aerosol particles from gas flow flowing through fiber optic layer. Accumulating fiber optic tape is adapted for use in fog catcher by wrapping the element in fog catcher along spiral. Aforesaid tape can be arranged overlapped for sealing at points whereat fiber optic element is overlapped.

EFFECT: fiver optic layer accumulating tape can be supplied in various versions for producing fog catcher fiber optic layer.

60 cl, 16 dwg, 3 tbl

FIELD: chemistry; technological processes.

SUBSTANCE: filtering element consists of adjacent alternating inlet and outlet channels, linked with each other with provision for transmitting fluids through their sidewalls. The element has parts of the sidewalls, which form an intermediate wall between the inlet channels and output channels and have undulation in their cross section, providing for increase in the total volume of inlet channels. The total volume of inlet channels is more than the total volume of outlet channels. The hydraulic diameter of outlet channels ranges from 0.9 to 1.4 mm. The ratio of the total volume of inlet channels to the total volume of outlet channels ranges from 1.15 to 4. The area of the filtration zone ranges from 0.825 to 1.4 m2 per litre of the filtering element. Asymmetry coefficient of the undulation is less than 20%.

EFFECT: provision for reduced pressure drop for the whole life span of the filtering element.

21 cl, 5 dwg, 1 tbl

FIELD: different branches of the national economy; production of the air purification filters.

SUBSTANCE: the invention is pertaining to purification of the compressed air, in particular, from the mists and may be used in different branches of the national economy, predominantly at the large compressor plants with the significant daily consumption of the compressed air. The filter contains: the body with the conical bottom with the hole in its lower part and with the top cover, the perforated metallic cylinder embraced by the wire mesh with the filtering component, the union for the purified air withdrawal equipped with the conical nozzle having the radial grooves, the union for feeding in the air for purification, the unions of input and output of the compressed air filling in the cavity of the jacket. The inlet union is made in the form of the narrowing subsonic nozzle with the curvilinear grooves on its internal surface and having the metal meshes from the side of the atmospheric air inlet. In the body there are the fixed injectors. The bottom is equipped with the condensate remover. The baffle partition with the rigidly fixed porous plate is movably fixed by means of the hinge to the top cover, and by the traction by means of the lever is connected to the condensate remover. This partition forms the chamber between the union of inlet and the plate and also the chamber between the partition and the filtering component. The technical result of the invention is reduction of the power inputs for production of the compressed air by usage of the gas-dynamic pressurization of the intake of the atmospheric air due to design of the air purification filter of the compressor made in the form of the resonator with provision of persistence of the resonance volume in the varying vibration conditions of the compressor plants operation.

EFFECT: the invention ensures reduction of the power inputs for production of the compressed air by usage of the gas-dynamic pressurization of the intake of the atmospheric air and provision of the persistence of the resonance volume in the varying vibration conditions of the compressor plants operation.

1 dwg

FIELD: cleaning and drying various gases, mainly hydrocarbon gases in preparation of them for transportation by gas lines.

SUBSTANCE: proposed separating filter element is made in form of multi-layer hollow cylinder; each layer is made from thermo-fastened fibers of thermoplastic polymer secured at crossing points. Layers are divided in groups at similar density in each group and different density of laying between groups of layers. Element has three groups of layers located in way of gas flow. Thickness of layers of first group is equal to thickness of layers of third group but is lesser than thickness of layers of second group; angle of inclination of fibers to vertical in third group of layers exceeds that in second group of layers but is lesser than that in first group; porosity of first group of layers is lesser than that of second group of layers but is more than that of third group of layers; density of laying layers of first group of layers is more than that of second group of layers but is lesser than that of third group of layers.

EFFECT: enhanced mechanical strength due to mechanical bond between layers; increased service life; enhanced reliability.

5 cl, 1 dwg

FIELD: filtering.

SUBSTANCE: device comprises reactor for producing gas hydrofluoric acid that is discharged from the reactor through the filtering grid made of a cylinder and provided with filtering members secured to the top section of the reactor housing. The de-clogging of the filtering members is carried out by repeatable blowing them with an inert gas. The inert gas is blown along the axis of the cylindrical wall of the filtering member with a velocity of 300 m/s for a period of less than 1 s.

EFFECT: enhanced efficiency.

13 cl, 9 dwg

FIELD: compressed air purification filters.

SUBSTANCE: the invention is pertinent to purification of a compressed air, in particular, to purification from mists in different branches of a national economy, mainly at the large compressor stations with a significant daily consumption of a compressed air. The task of the offered invention is provision of uniformity of evaporation of the mass of the drip condensate in all the capillaries of the porous plate by a gradual increase of length of the capillaries from its center to the edges and an increased collection of the drip mass entered with an air flow at the expense of funnel-shaped form of the entrance points into the capillaries. The technical result is an improved design of the compressed air purification filter. The air filter contains: a cone-bottomed body with an aperture in its lower part; a perforated metal cylinder stretch-wrapped with a wire mesh with a filtering element connected with a union of outlet of the purified air and having a cone nozzle with radial grooves on its external surface; a union of inlet of the purified air made in the form of narrowing subsonic nozzles with curvilinear grooves on its inner surface and with metal gauzes located on the side of their inlet; a jacket with unions of inlet and outlet of a compressed air; mounted on the cover of the body spray jets for a compressed air blowing of the filtering element; a condensate taper located in an aperture of the bottom and a deflecting partition, on which there is a porous plate commensurable with its sizes. The porous partition is formed by the first and the second located on a course of incoming of the induced air draft butt surfaces with capillaries. At that the first butt surface has a form of a semi-ellipsoid of rotation, the center of a pit of which lays on the axis of the incoming induced air stream and the second butt surface is flat and connected to the deflecting partition and inlet openings of capillaries are funnel-shaped.

EFFECT: the invention ensures uniformity of evaporation of the mass of the drip condensate in all the capillaries of the porous plate and increased collection of the drip mass entered with a compressed air flow.

3 dwg

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