Multi-way valve actuator and connection element for such actuator
FIELD: machine building.
SUBSTANCE: multi-way valve (30) includes body (31), head (32) from which outer end (33) of rotary stem (34) of valve projects, and actuator (1). Head (32) of valve has connection means (35) for movable connection of actuator (1) to housing (31) of valve and outer end (33) of valve stem (34), which has attachment surfaces (36), for fixed interaction with the first end (11) of connection element (10) the other end (12) of which interacts in rigid manner with rotary control shaft (2) of actuator (1). Connection element (10) has the possibility of being reversed. Both ends (11; 12) of connection element (10) are provided with central hole (13) and toothed rim (15, 16). One hole (13) is provided with possibility of fixed interaction with attachment surfaces on external end of valve stem of the first type. The other central hole (14) is provided with possibility of fixed interaction with attachment surfaces (36) on external end (33) of valve stem (34) of the second type. Each toothed rim (15, 16) envelopes the corresponding hole (13, 14), and when it faces the opposite side from valve head (32), it interacts with gear teeth (3) in rigid manner. Those teeth are made on mating end of actuator shaft (2) of one and the same type. There is the second invention object.
EFFECT: enlarging functional capabilities owing to using one and the same actuator and one and the same connection element for various types of rotary valve stems.
12 cl, 2 dwg
The technical field to which the invention relates
The present invention relates to a drive multi-way valve that includes a valve body having a valve head, which is the outer end of the rotary valve stem, the valve head has a connecting means for fixed connection to the valve body, and the outer end of the valve stem has a connecting surface configured to a fixed engagement with the first end of the coupling element, which is opposite the second end still interacts with the rotating shaft of the actuator controls.
The present invention also relates to a connecting element for such a valve actuator.
The level of technology
In case of mechanical control multi-way valve provided with the rotary valve stem, there are several types of actuators with corresponding connecting elements for interaction with the above-mentioned valve stem.
The first type is described, for example, in U.S. patent 4114465 and contains a coupling element in the form of the coupling. The clutch is slipped over the shaft of the actuator controls and valve stem and blocked them using resistant screws.
The second type is described, for example, in German patent 19845684 and contains match the nutrient element, which the first end is a plot of coupling and the second end of the ribbed section. The plot of the coupling is tightened on the shaft of the control actuator and lock it using the screw. Ribbed plot, on the other hand, is intended for input into the corresponding groove in the valve stem and firmly fixed without the possibility of rotation by means of planting on the form.
The third type is described, for example, in U.S. patent 3808895 and contains a coupling element, which on two opposite ends have recesses in the form of grooves. These grooves are designed to connect the form with ribbed end sections of the shaft of the actuator controls and valve stem and, thus, for fastening one shaft to another without the possibility of rotation.
The objective of the invention
The main drawback of the actuator and the coupling element, briefly described above, is that they are designed only for one type or the same size of the valve stem. This means that the manufacturer of the drives is always necessary to provide either two different drive with connecting elements included in them, or two different coupling element for the same type of drive as the size or type of the valve stem changes, which, of course, is disadvantageous from the point of view of cost of production and storage. T is m, not less such differences in the type or size are not uncommon even among the same manufacturer. The reason for this is that the lifetime and cycle manufacturing valves, usually very long, while the service life and, in particular, the manufacturing cycle drives, usually much shorter. Therefore, the probability that they will not be the same, relatively high. Thus, during the service life of the valve will be used several drives, technical development which is much faster. This also means that the wizard that makes installation, often there are no suitable drives or connecting elements.
In view of the above, the present invention is to improve the drive and the coupling element, as described in the introduction, so that the disadvantages encountered in prior decisions, have been eliminated or at least reduced.
Brief description of the invention
In the actuator described in the introduction, this is achieved by means of a connecting element made with the possibility of turning and having at both ends, on the one hand, the Central hole, one of which is configured to a fixed engagement with the connecting surfaces on the outer end of the first type of valve stem, and the other made the possibility of a fixed engagement with the connecting surfaces on the outer end of the second type of valve stem, and, on the other hand, the ring gear that surrounds the hole and which, when he is facing away from the valve head, still interacts with the gear teeth made on the mating end of the same shaft type control.
The connecting element, as described in the introduction, made with the possibility of turning on both ends has, on the one hand, the Central hole, one of which is configured to a fixed engagement with the connecting surfaces on the outer end of the first type of valve stem, and the other is made with the possibility of fixed engagement with the connecting surfaces on the outer end of the second type of valve stem, and, on the other hand, a ring gear surrounding the adjacent hole, which, when he turned to the valve actuator, still interacts with the gear teeth located on the mating end of the shaft governance, which forms part of valve actuator.
For a manufacturer of valves, this means that thanks to the invention it is possible, for example, in the development of new valves to choose the solution of the valve stem, which at the moment is best suited, regardless of the selected first solution, as the same drive can now be used for two different types of rods clapano is. For the manufacturer of the drives, this means that thanks to the invention it is possible to halve the number of different drives and connecting elements for different valves on the market. And, ultimately, for a wizard or a buyer this means, for example, that the probability of purchasing the wrong type of drive or coupling element for an existing valve is significantly reduced.
The center hole of the connecting element are preferably connected to each other and form a channel that passes through the connecting element. This provides the advantage that the screw from the drive shaft can be inserted through the connecting element and is screwed to the valve stem for fastening the actuator to the valve.
In accordance with another preferred embodiment of the invention, two of the ring gear and the coupling element are identical in form. This is an advantage, especially when trying to achieve the best possible correspondence in form between the gear rims and gear teeth on the mating end of the shaft of the actuator controls.
In accordance with the invention, sprockets preferably have gear teeth directed in the same direction as the center hole of the connecting element. The advantage of this is that still the way the connecting element will not have any speakers to the side parts, which facilitates its entry into the drive, and also facilitates injection molding.
Preferably, the connecting member is cylindrical and has a hexagonal peripheral surface. Hexagonal shape fits the Allen key and, thus, provides easy rotation of the valve stem to the desired position of rotation when installing the actuator on the valve.
Preferably, also perform forefinger groove, which runs along the coupling element between its two ends and which is arranged to indicate the position of rotation of the valve stem. The groove allows to determine the position of rotation of the valve stem and, thus, easily choose a suitable position of rotation of the valve stem when installing the actuator on the valve.
Brief description of drawings
The preferred embodiment of the invention will be described below with reference to the accompanying drawings.
Fig. 1 is a perspective view of the first multi-way valve is connected to it, but is shown only partially, by the drive.
Fig. 2 is a perspective view of the second multi-way valve with the same partially shown actuator, as shown in Fig. 1.
Description of the preferred options for the implementation of the ing
In Figures 1 and 2 shows the actuator 1 and the connecting element 10, is incorporated, or is intended for use together in accordance with the invention. Although fully actuator 1 is shown only schematically in the form of dashed and dotted lines, the shaft 2 of the controls that are included in it, is shown in detail, as well as the connecting element 10, uninterrupted lines.
The actuator 1 as such preferably is electric and is designed for connection in a known manner with, for example, a temperature sensor, which adjusts, by means of the actuator, the configuration and position of the turning rod 24; 34 valve.
The rod 24; 34 valve installed on a multi-way valve 20; 30, a first variant implementation of which is shown in Fig. 1, and the second variant implementation of Fig. 2. Both valves 20 and 30 contain the housing 21; 31 valve with plenty of holes 27; 37 of the valve. Both have head 22; 32 valve, which is rotatable rod 24; 34 valve.
Head 22; 32 valve have connecting means 25; 35 for the fixed connection of the actuator 1 with the housing 21; 31 of the valve. In the first valve 20, these connection means consist of four threaded holes 25, which are evenly spaced around the stem 24 of the valve and is made in a metal cylinder 22 of the valve and a second valve in the form of four is Astapov 35, which are evenly spaced around the rod 34 of the valve and acts on the plastic head 32 of the valve. In this context, the last cylinder 32 valve designed for landing on the form to prevent rotation in the housing 31 of the valve while the first head 22 of the valve usually screwed to the body 21 of the valve.
As shown in Fig. 1 and 2, each of the rods 24; 34 of the valve has an outer end, indicated respectively by the reference positions 23 and 33 and having a connecting surface 26; 36. In the valve 20 in Fig. 1, the connecting surfaces consist of section 26 of the surface that is oblique to the rod end 24 of the valve. The valve 30 in Fig. 2 connecting surfaces instead consist of three longitudinal ridges or ribs 36, which are distributed along the outer end 33 of the rod 34 of the valve. In other words, the two outer end 23, 33 have a completely different shape and, as shown, is also entirely different lengths.
Connecting surfaces 26, 36, mentioned above, still connected with the first end of the connecting element 10, which by means opposite second end still interacts with the rotary shaft 2 of the drive control 1. In order to ensure using the same actuator 1, the connecting element 10 is performed with the possibility of overturning in accordance with izobreteniem. This complicates the description of the fact that, for example, the first end of the connecting element 10 in the valve 20 in Fig. 1 is an end indicated by 11, the first end of the connecting element 10 in the valve 30, shown in Fig. 2 is an end indicated by 12. The problem is solved by designations where possible - for example, in the claims as the first and second ends of the connecting element 11, 12. The next two paragraphs, however, the situation described independently, first option for implementation in Fig. 1 and then option for implementation in Fig. 2.
In Fig. 1 shows perevorachivaya the connecting element 10 according to the invention in the first position of use in which the first end of the connecting element 10 is an end located in the lower part in the drawing and indicated by the position 11. Accordingly, the second end is marked with the position 12 in Fig. 1 and is located above the first end 11. The connecting element 10 has at both ends 11, 12 of the Central hole, the first of which is shown in Fig. 1, and the second indicated position 14 and is made at the other end 12. The first hole (13, see Fig. 2) is configured to a fixed engagement with the connecting surfaces on the outer end 23 of the rod 24 of the valve, i.e. with beveled section 26 of the surface.
The piano is, 2 perevorachivaya the connecting element 10 according to the invention shown in a second position where the first end of the connecting element 10 is an end located in the lower part of the drawing and, thus, the indicated position 12. Accordingly, the second end is marked with the position 11 in Fig. 2 and located above the first end 12. The connecting element 10 has at both ends 11, 12 of the Central hole, the first of which is not shown in Fig. 2, and the second indicated position 13 and performed at the second end 11. The first hole (14; see Fig. 2) is configured to a fixed engagement with the connecting surfaces on the outer end 33 of the rod 34 of the valve, i.e. with ribs 36.
Holes 13, 14 on both ends 11, 12 of the connecting element 10 is surrounded by a toothed rims 15, 16. These crowns are identical and are made with precise interaction of shape, thus, motionless, with corresponding gear teeth 3 on the mating end is identical to the shaft 2 of the control of the actuator 1 of Fig. 1 and Fig. 2. This means that the same actuator 1 and the same connecting element 10 can be used either for multi-way valve 20 in Fig. 1, or for multi-way valve 30 in Fig. 2.
It should be noted that a variant of the invention, described above, may be change the n different ways within the claims.
For example, you can perform a channel (not shown), which passes through the connecting element 10 and connects the two holes 13, 14 with each other. This allows you to enter the screw through the shaft 2 management and the connecting element 10, and the actuator 1 for fastening, by means of the screw may be attached to the rod 24, 34 of the valve and thus to the valve 20, 30.
You can also replace the shown sprockets 15, 16 with the gear teeth directed in the same direction as the Central openings 13, 14 of the connecting element, the other toothed crowns, for example, crowns, teeth turned inward or outward.
Preferably, the connecting element 10, shown in Fig. 1 and 2, is cylindrical and has a hexagonal peripheral surface. However, this is not a mandatory requirement, and allowed both cylindrical and feasibility of the form, provided that the connecting element 10 is perevorachivaniem.
Ultimately valid, as shown on the connecting element 10, to have some form of position indicators, preferably in the form of index grooves 17, which runs along the coupling element 10 between the two ends 11, 12 of the above coupling element 10 and is arranged to indicate the position of the rotation shaft 24, 34 of the valve. However, indicators of the state who may also have a different appearance and for example, to represent a color mark or convex arrow.
1. The actuator (1) multi-way valve (20; 30), comprising a housing (21; 31) of the valve with the cylinder (22; 32) of the valve, which acts as the outer end (23; 33) rotary rod (24; 34) of the valve while the cylinder (22; 32) of the valve has a connecting means (25; 35) for the fixed connection of the actuator (1) from body (21; 31) of the valve and the outer end (23; 33) of the rod (24; 34) of the valve having a connecting surface (26; 36), for fixed engagement with the first end (11; 12) of the connecting element (10)which is opposite the second end (11, 12) still interacts with the rotating shaft (2) office drive (1), characterized in that the connecting element (10) is arranged to turn, and at both ends (11; 12) it has, on the one hand, the Central hole (13, 14), one (13) of which is made with the possibility of fixed engagement with the connecting surfaces (26) on the outer end (23) of the first type of rod (24) of the valve, and the other (14) is made with the possibility of fixed engagement with the connecting surfaces (36) on the outer end (33) of the second type of rod (34) of the valve and, on the other hand, the gear (15, 16)which surrounds the corresponding hole (13, 14) and which, when he turned from the head (22; 32) of the valve, still EOI is modestum with teeth (3) gear, made on the mating end of one and the same type of shaft (2) of the control.
2. The actuator (1) according to claim 1, in which the Central hole (13, 14) are connected to each other and form a channel that passes through the connecting element (10).
3. The actuator (1) according to claim 1 or 2, in which the toothing (15, 16) are identical in form.
4. The actuator (1) according to claim 1, in which the toothing (15, 16) have gear teeth directed in the same direction as the openings (13, 14).
5. The actuator (1) according to claim 1, in which the connecting element (10) is cylindrical and has a hexagonal peripheral surface.
6. The actuator (1) according to claim 1, in which the connecting element (10) has a forefinger groove (17), passing along the coupling element (10) between its two ends (11, 12) and is arranged to indicate the position of the rotating rod (23; 33) of the valve.
7. The connecting element (10) of the actuator (1) valve, characterized in that it is arranged to turn, at its both ends (11, 12) is made, on the one hand, the Central hole (13, 14), one (13) of which is made with the possibility of fixed engagement with the connecting surfaces (26) on the outer end (23) of the first type of rod (24) of the valve, and the other (14) is made with the possibility of fixed engagement with the connecting surfaces (36) on the outer end (33)of the second type rod (34) of the valve, and, on the other hand, the gear (15, 16)which surrounds the corresponding hole (13, 14) and which, when he turned to the actuator (1) valve, still interacts with teeth (3) gear, made on the mating end of the shaft (2) control, which forms part of the actuator (1) valve.
8. The connecting element (10) according to claim 7, in which the Central hole (13, 14) are connected to each other and form a channel that passes through the connecting element (10).
9. The connecting element (10) according to claim 7 or 8, in which the toothing (15, 16) are identical in form.
10. The connecting element (10) according to claim 7, in which the toothing (15, 16) have gear teeth directed in the same direction as the openings (13, 14).
11. The connecting element (10) according to claim 7, having a cylindrical shape and a hexagonal peripheral surface.
12. The connecting element (10) according to claim 7, having a forefinger groove (17), passing along the coupling element (10) between its two ends (11, 12) and is arranged to indicate the position of the rotating rod (23; 33) of the valve.
FIELD: fire fighting systems.
SUBSTANCE: invention refers to protection drive device with emergency protection circuit and can be used in firefighting and monitoring systems used in the sphere of air conditioning, heating and ventilation. Protection drive device (10) with circuit (12) of emergency protection installs damper or valve into the set position ensuring safety for regulation of volumetric gas or flowing medium flow. The important parts of the device (10) are the executing mechanism (14) with controlled electric motor (28), unit (20) of capacity storage, energy converter (22) with energy module and power unit (18). During normal operation electric current in the energy module of converter (22) is converted into lower voltage and the charge is stored in the unit (20) comprising at least one double-layer condenser. In case of voltage decrease lower the set value or in case of electric supply failure the accumulated electric charge is converted with the same energy module into higher voltage, and as a result, the electric motor (28) works until the set position ensuring safety is reached.
EFFECT: simplification and improvement of emergency protection circuit.
25 cl, 9 dwg
SUBSTANCE: electromechanical drive includes electric motor, stator, rollers and output stock. Stator encloses hollow rotor. Rollers are equipped with external thread and arranged in cavity of rotor in threaded sleeve in circumferential direction. Axes of rollers are parallel to rotor axis. Screw is coaxially arranged inside rotor. Screw has external thread. Thread of screw interacts with thread of rollers. Thread of rollers interacts with internal thread of sleeve. Sleeve is rigidly attached to one end of output stock. The latter is installed so that it is protected against being turned. One screw end is rigidly attached to rotor. The other end of screw is arranged in cavity of output stock.
EFFECT: higher reliability of electromechanical drive.
9 cl, 3 dwg
FIELD: machine building.
SUBSTANCE: invention is designed for application of device preventing rotation of servo-motor mounted on driven shaft of rotary shut-off gate of gas-transporting pipe. In particular, this gate can be positioned in a structure of a heating pipe, ventilation, air conditioning or smoke pipe. Device preventing rotation of servo-motor (10) is set with geometric lock and/or power lock on projecting driven shaft (22) of rotary shut-off gate (62) of gas-transporting pipe (34). At least one shifting lengthwise bracket (36) maintaining servo-motor (10) is positioned at adjusted axial distance (a) from driven shaft (22).
EFFECT: simplified assembly and operation of device.
10 cl, 10 dwg
SUBSTANCE: valving drive comprises reversible motor and extending spindle. The latter is coupled with valve gate. Reduction gear is arranged between motor and extending spindle. Reduction gear consists of housing, drive cam shaft, bevel pinion, cone coupling, sliding nut and hollow output shaft. The latter is arranged aligned with extending spindle. Helical pinion is a two-rim pinion. Said helical pinion is jointed with housing and engaged with two-rim pinion rim. Cone coupling is jointed with hollow output shaft and engaged with two-rim pinion rim. Sliding nut is fitted at hollow shaft lower part.
EFFECT: motor reduced rpm for lifting valve gate at drive lower weight and smaller sizes.
FIELD: machine building.
SUBSTANCE: drive of valve consists of case, valve rod, spring and of driving devices. The rod is connected to a gate element. The gate element travels between the first and the second positions. The spring shifts the gate element from the said first position into the said second position. The first driving devices are designed for tension of the spring and for retaining the spring in a compressed state. The second driving devices are designed for transfer of the gate element from the first position into the second position. The second driving devices include a transmission with a roller screw. Also the second driving devices operate independently from the first driving devices. Releasing devices free the spring to return the gate element into the second position. There is disclosed the version of design of the valve device for this drive.
EFFECT: increased speed of response for valve opening in emergency cases.
7 cl, 10 dwg
FIELD: mechanical engineering.
SUBSTANCE: invention relates to field of pipeline valves, particularly to structures of quick-acting motor valves with axisymmetric seats and rotary plugs, and is provided for close control of flows of arbitrary flowing fluids on the basis of liquids and gases, locking and unlocking of vacuum pipelines. Motor valve with rotary plug contains casing 1 with inlet 2 and outlet 3 branches, axisymmetric seat 4, rotary plug 5, rotary drive on the basis of piezoelectric motor 7. Seat 4 is rigidly fixed inside the casing 1. Rotary plug 5 is put into seat 4 and allows guide bar 6. Motor 7 allows annular piezoelectric oscillator 8 radially directed vertical acoustic waves. Oscillator 8 is rigidly fixed with casing 1 of valve and outfitted by facilities for connection to pulsed current source and control system. Flexible annulus 9 is acoustic hermetically joined to piezoelectric oscillator 8. Annulus 9 is outfitted by flexible clack tappet 10. Rotor 11 is located with steady clearance relative to piezoelectric oscillator. Rotor 11 is introduced into frictional contact with flexible clack tappet 10. Rotor 11 is interlocked with guide bar 6 of rotary plug 5.
EFFECT: rising of valve performance and rising of precision of angular positioning of plug relative to seat.
7 cl, 2 dwg
SUBSTANCE: proposed mechanism comprises housing, motor, spindle, motor base, cam-type torque conversion mechanism including cam and pushrod interacting with valve stem arranged to move axially, and electric switch. Note that the proposed mechanism additionally incorporates and outer cam wheel. Note also that the fixed cam comprises base plate attached to the motor base and accommodates, at least, one lifting/downing profile. The said pushrod is fitted at greater distance from the motor than aforesaid fixed cam and represents a rotary disk with appropriate actuating and guiding appliances. The said outer can wheel is coupled with the spindle to transmit torque to the pushrod and to interact with electric switch.
EFFECT: simple design, ease of manufacture.
8 cl, 6 dwg
FIELD: machine building.
SUBSTANCE: invention deals with methods of control over power-pressurised switch gear operating under time-varying thermal conditions within the framework of multi-phased technological processes and is aimed to provide for remote control of vacuum valves. The proposed remote control method envisages utilisation of multiple shutting-off device position stops and valve pressurisation effort amount restrictors. The position stops are remotely connected and the shutting-off device required position stops and pressurisation effort amount restrictors are operated.
EFFECT: enhanced valve pressurisation reliability, facilitated control over the shut off medium flow and reduced redundant deformation of the sealant element.
2 cl, 1 dwg
FIELD: the invention refers to armature construction namely to actuating mechanisms for pipeline armature.
SUBSTANCE: the actuating mechanism has a flange 1 with an opening for installation on the armature, a located under it a bridge 5 with a co-axial opening and an arrangement for fastening of the rod of the armature. The actuating mechanism has also a drive interacting with one of the two cog-wheels located diametrically to the opening of the flange 1 and placed in bearings. The cog-wheels are connected with the bridge 5 through screw mechanisms for its reciprocal movement relatively to the flange. The connection between the cog-wheels is fulfilled through a hollow cog-wheel covering the opening of the flange 1 and having ledges. The hollow cog-wheel contacts with the rollers installed at its both sides.
EFFECT: high meanings of mechanical transmission are achieved.
4 cl, 5 dwg
FIELD: closing and opening large valves.
SUBSTANCE: proposed drive is provided with engine which acts on threaded rod by means of transfer mechanism. Nut of transfer mechanism is screwed on threaded rod. Transfer mechanism is provided with clutch consisting of two members which are thrown into engagement by means of toothed rim of one member and toothed rim of other member. One member is movable in axial direction during rotation of said member relative to each other. Shifting member is connected with switch.
EFFECT: automatic adjustment of valve to different valves.
14 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: valve consists of cylinder (2) and of rotary drum (3) installed in it. Cylinder (2) contains multitude of in essence identical tubular segments (4) of the cylinder, a lower end segment (5) of the cylinder and an upper end segment (6) of the cylinder. Segments (4, 5, 6) of the cylinder are interconnected and form a continuous external wall restricting a cavity in the cylinder. Additionally, in the cylinder there is inlet orifice (7) and multitude of outlet orifices (8) communicated with the cavity. Drum (3) contains multitude of in essence identical tubular drum segments (9), a lower end drum segment (10) and an upper end drum segment (11). Drum segments (9, 10, 11) are interconnected and form drum (3) with an internal wall, external surface of which is designed for rotation in contact with response internal surface (13) of the external wall. In the internal wall there are multitude of channels (14). At rotation of drum (3) the said channels can be brought in range or taken out of range with outlet orifices (8) forming through passes from the inlet orifice to the outlet orifices. The invention also discloses the set of segments for assembly of the valve and the system of heat exchange.
EFFECT: increased operational reliability.
10 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: gas control valve consists of case with inlet and two outlet branches and of gates. A seat with a delivery orifice of a rectangular shape is installed in each outlet branch. One side of the rectangular seat runs through plane perpendicular to axis of a shaft. The gates contact the seats along interfacing cylinder surfaces perpendicular to axis of the shaft. Axis of the inlet branch and axes of outlet orifices of the seats are positioned in the same plane perpendicular to axis of the shaft. Both gates are coupled with one shaft. A "П"-shaped recess is made in this shaft on the side of the inlet branch. The "П"-shaped recess of the shaft envelopes internal diametre of the inlet branch on both sides. There are made rectangular grooves in the shaft. Symmetry axes of the grooves are in the same plane as axis of the inlet branch and axes of the delivery orifices of the seats. One pair of groove sides is perpendicular to axis of the shaft. The gates are fitted in these grooves with a gap. The gates project beyond surface of the shaft and close the delivery orifices of the seats in the same way. Length of the gate twice exceeds length of the delivery orifice of the seat closed with the gate. The end of the "П"-shaped recess of the shaft is located further from the inlet branch, than the gate.
EFFECT: reduced weight of valve.
2 cl, 5 dwg
SUBSTANCE: refrigerating unit is provided with cooling circuit containing several evaporation sections and distributor (5). The latter distributes cooling agent in evaporation sections. Distributor (5) has controlled valve (12) for each evaporation section. Valves (12) are provided with possibility of their being controlled with control device, with possibility of controlling various valves (12) in a different way. Control device controls only one valve (12) so that it has the feedthrough hole which is bigger than that of other valves.
EFFECT: improving the operation of refrigerating unit.
13 cl, 5 dwg
FIELD: machine building.
SUBSTANCE: invention elates to machine building and is provided for usage in gas-distributing valves, operating on the basis of combustion materials of rocket fuels and providing control of aircraft in planes of pitch and snaking. Gas-distributing valve contains casing with inlet and outlet branches with delivery outlets located in casing with ability of rotation of shutter connected to shaft. Shaft axis is located perpendicular to axis of delivery outlet of outlet branch. Shutter is implemented in the form of part of hollow cylinder in the form of sector with delivery outlet and is installed relative to shaft and inner surface of casing with radial clearance and jointed to outlet branch. On shaft there are implemented perpendicularly to its axis annular bosses non overlapping located in the same plane delivery outlets of inlet and outlet branches. In annular bosses of shaft there are implemented cuttings. In cuttings there are installed cylindrical limiters with butt-end clearance. The latter are implemented on side surfaces of shutter.
EFFECT: reduction of drain of gas at increasing of reliability of valve operation in conditions of high temperatures and pressures and also providing of thrust reversal.
5 cl, 7 dwg
FIELD: mechanical engineering.
SUBSTANCE: invention relates to mechanical engineering and is provided for usage in those fields in which it is required discrete distribution of medium by accumulative or operating members of machines and mechanisms. Multiposition distributor contains hermetic enclosure with through branches, implemented in casing groove, located in casing rotary distribution center, flexible hoses, power mechanism, subplate. Distribution center is implemented in the form of cylinder with groove on its surface. Groove in casing is located lengthwise relative to pivot pin of distribution center and communicates groove.
EFFECT: design simplification of distributor, it manufacturing and operation.
2 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: present group of inventions pertains to pipe fittings and is meant for selective flow distribution of process medium from the source to a specified place. The rotary valve has housing with a chamber in which there is rotor (14) and several openings through which fluid medium passes. Rotor (14) has at least one passage for regulating flow of fluid medium through the chamber and seal (34). Sealing surface (36) of seal (34) is in contact with inner surface (39) of the housing of the valve near the chosen opening in the housing of the valve. Rear surface (35) of seal (34) is on the side opposite of sealing surface (36), passage (52) and projection (38). The latter directs the fluid medium (Pe) under pressure so as to press sealing surface (36) to the housing of the valve. Opening (40) is bored in the outer surface of the rotor. Projection (38) of seal (34) is inserted into bored opening (40). Sealing element (42) is put around the projection to create a barrier for the fluid medium between the seal and the side wall of the bored opening. The sealing element borders part of the rear surface of the seal, on which the under pressure fluid medium acts. There are other subjects of the invention: seal assembly (34), an actuating mechanism and three versions of the rotary valve.
EFFECT: increased air-tightness and reliability of the valve.
20 cl, 26 dwg
FIELD: machine manufacturing.
SUBSTANCE: invention relates to machine manufacturing and is meant for use in systems of thermal regulation of products of aeronautic and space technology, and also other fields of technology. Device for splitting flow of fluids contains a case with a hollow part, one inlet nozzle and two outlet nozzles, vents which are made from outlets to the cylindrical surface of hollows. On the case is mounted a shaft with a switching device. This device has segments. In the hollow is rigidly mounted in contact with its cylindrical surface a ring. Outer surface of the ring has two grooves. Each of the grooves has a hole which holds one of the outlet nozzles. The outer surface of the switching device has a groove of uniform depth. Mounted in the groove is a segment with the capability of restricted motion on axial and angular relative to the axes of the groove's direction. A step engine is mounted in the case. Its rotor is joined with the groove. There's a radial hole on the ring for communication of the inner surface with its grooves. Angular distances between neighbouring holes have similar or multiple rotor steps of the step engine.
EFFECT: ensuring repeated accuracy and improving reliability in performance of the device for splitting flow.
2 cl, 4 dwg
FIELD: production of stop valves.
SUBSTANCE: invention relates to production of stop valves and is intended for controlling liquid flows. The independent quarter-turn outlet three-way valve incorporates an inlet channel located between two outlet channels arranged perpendicular to the inlet channel lengthwise axis making a T-like arrangement. One of the independent valves, a central, is axially aligned with the tubular inlet channel that makes a lengthwise section of the said T-like arrangement. Another side valve has an axis perpendicular to lengthwise axis of one of the tubular outlet valves. The outlet channels make a crosswise section of the said T-like arrangement. Both valves are arranged in a single assembly unit making the three-way valve assembly part. Liquid forced into the central valve from below is distributed in ether side or in both at a time, as required. Central valve plug (3) incorporates a straight inner channel (4) and an L-shape channel with perpendicular outlets. Straight channel (4) passes liquid in both outlet channels at a time. L-shape channel allows liquid to flow in one direction only towards outlet channel (6). This is where side valve (6) is fitted in.
EFFECT: simple design and lower cost.
2 cl, 9 dwg
FIELD: pipeline valves and fittings.
SUBSTANCE: invention is designed for use as shutoff device for radiators. Proposed valve has gate installed on spindle and valve seat housing. The latter has first seat of valve and second seat of valve. Gate is installed for displacement between first working position and second working position. In first working position gate engages with first seat, and in second working position, with second seat. Valve spindle is tilted relative to axial line of seat housing. Gate is displaced by turning auxiliary device.
EFFECT: reduced overall dimensions of valve and space required for arrangement of such valve.
13 cl, 4 dwg
FIELD: valving system.
SUBSTANCE: angular valve comprises housing with outlet branch pipes and conical space for the conical plug mounted in the bearing and provided with through passage. The face lid with inlet branch pipe is locked inside the housing. The control handle is mounted for permitting rotation in the transverse and longitudinal directions with respect to the housing and in the longitudinal direction with respect to the plug. The control handle is connected with the plug through the cam. The cam is provided with the arrester of its upward movement in the longitudinal direction. The plug is provided with the spindle that is pivotally connected with the cam and rigidly connected with the plug. The return spring is mounted in the space between the faces of the spindle and plug. When the control handle rotates downward in longitudinal direction, the space is connected with the through passage in the plug. When the control handle rotates in the opposite direction, the space is cutoff from the passage.
EFFECT: simplified structure.
5 cl, 5 dwg
FIELD: oil industry.
SUBSTANCE: switch is made of plug cock having cylindrical plug mounted inside the hollow housing. The housing is made of cylinder with face lids. The shank of the plug for its rotation passes through one of the lids along the axis of the housing. The housing is provided with radial branch pipes arranged in a single plane. The cylindrical plug is mounted to define two spaces on both sides of the plug. The lids are provided with branch pipes which are shifted from the axis of the housing and used for connecting both of the of the cylindrical plug spaces with the external devices for distributing fluid. The cylindrical plug is provided with grooves-recesses the number of which is equal to the number of branch pipes and which extend up to one of the faces of the cylindrical plug to provide desirable communication of the radial branch pipes with the corresponding space of the housing. The cylindrical plug is protected against movement inside the housing, excluding rotation, with thrust radial bearings made of two sliding pairs. The bearings are arranged on both sides of the cylindrical plug. One of the members of the pair is placed on the corresponding face of the cylindrical plug. The other member is set in the corresponding lid of the housing.
EFFECT: improved structure and enhanced reliability.
2 cl, 2 dwg