Displacement device to be used with actuators

FIELD: machine building.

SUBSTANCE: displacement device to be used with actuators is described. The displacement device to be used with a piston actuator comprises the first bush which, at least partially, is enclosed by the second bush and connected to the second bush in a movable way. The displacement device is additionally equipped by a stop to limit the value of displacement of the first bush in respect to the second bush, and the displacement element is set between the first and the second ends of respectively the first and the second bushes to press the first bush from the second bush. The displacement element is completely placed inside the chamber provided by the first bush and the second bush.

EFFECT: improved design.

17 cl, 12 dwg

 

The technical field to which the invention relates.

This patent, in General, refers to the shifter and, in particular, to the device offset for use with actuators.

The level of technology

The control valves (for example, linear valves, rotary valves, and so on) are commonly used in control systems of technological process to control the flow of process fluid. In a typical case, the control valve includes an actuator (e.g., piston actuator, hydraulic actuator, and so on) to start the control valve. To ensure these actuators feature displacement usually actuator is installed a spring to bias the piston of the actuator and/or to return the body of control fluid medium control valve in the position of providing security (e.g., in the open position to the closed position during, for example, a system failure. Although spring and provides the actuation capability offset, but the Assembly and/or disassembly of the actuator can be very difficult due to the impact exerted by the spring on the various components of the actuator.

Revelation is their inventions

The device offset for use with piston actuator includes a first sleeve at least partially covered by the second sleeve and movably connected with the second sleeve. Additionally, the shifter includes a stop to limit movement of the first sleeve relative to the second sleeve and the element for shifting, located between the first and second ends, respectively, first and second bushings, so that pressing the first sleeve from the second sleeve.

Brief description of drawings

In FIG.1 shows a known actuator and control valve.

In FIG.2 shows the control valve and an actuator which includes an example of a device offset.

In FIG.3 shows the control valve and actuator from FIG.2 in a different position.

In FIG.4 depicts a magnified view of a variant of the device offset from FIG.2.

In FIG.5 shows a variant of the device offset from FIG.2, including the option stops.

In FIG.6 depicts a variant of the device offset from FIG.2, including the option of thrust in an alternative position.

In FIG.7 depicts a portion of the actuator from FIG.2, includes a variant of the device offset option externally adjustable stops.

In FIG.8 shows a variant of the device offset FIG.2 alternativeviagra externally adjustable stops.

In FIG.9-11 depict the manufacturing process variations of the device offset.

In FIG.12 depicts an alternative device offset.

The implementation of the invention

On the above figures is given in certain variations of the embodiments that are described in detail below. When describing these options to identify identical or similar elements are similar or identical rooms. The figures are not necessarily made to scale, and certain shapes and figures can be shown enlarged in scale or in schematic image for clarity and/or for expression. In addition, some variants of the embodiment already described throughout this description. Any characteristic of any option may be included together with other characteristics of the other options, or replaced, or can be combined with them otherwise.

As described here, the embodiments relate to a device offset, which reduces the complexity and/or the time required for Assembly and/or disassembly of the Executive mechanisms. In particular, as described here, the embodiments allow for the Assembly and/or disassembly of the actuators without the need for pre-compression and/or straightening of the spring installed in the Executive fur is changed.

In some embodiments, embodiments of the shifter includes a pre-loaded spring located between the opposite ends of the sleeves are telescopically connected together. The sleeve may include opposing flanges that are engaged and/or connection to limit movement of the sleeves relative to each other. Additionally, the shifter may be provided with one or more travel limit stops to limit movement of the sleeves relative to each other and/or to prevent collapse of the spring in the ring. Although described here is a variant of the device offset shown used with actuators, a variant of the device offset can be used in any other suitable application.

In FIG.1 shows a known actuating device 100 coupled to the housing 102 of the control valve 104 (e.g., ball valve, valve with the translational movement of the rod, with a number of fasteners 106. The actuator 100 includes a cylinder or housing 108, connected between the first plate 110 and second plate 112 by means of several connecting rods 114 and fasteners 116. The cylinder 108 presents a chamber 118 in which is located the piston 120, the spring 122 and the portion of the rod and the rod 124 of the actuator. In reciprocating actuator single-acting and/or double action spring 122 provides the actuator 100 capability offset to ensure security to move the control fluid medium (e.g., rod) (not shown) of the control valve 104 through the piston 120 in the position of security (for example, in the open position or in closed position), for example, during a system failure. The actuator stem 124 is positioned through the aperture 126 defined by the second plate 112, and the aperture 128 defined by the ferrule 130 of the actuator 100.

In practice, the actuator 100 may be attached to the housing 102 to control the flow of fluid through the control valve 104. In particular, the actuator 100 can be used to control the position of the control fluid medium, operatively connected with the actuator stem 124 within the housing 102 of the control valve 104. In the workflow to move a control inside a control valve 104 uses the pressure differential between the first part of the chamber 132 and the second part of the chamber 134. For example, to move the control fluid medium from the aperture (not shown) to skip the fluid through to the APN control 104, the piston 120 can be moved in the direction of the first plate 110 through the produced fluid (such as air, hydraulic fluid), for example, through a hole (not shown) for reducing pressure in the first portion of the chamber 132. Decreasing pressure in the first portion of the chamber 132, the force acting on the first surface 136 of the piston 120 also decreases (e.g., force = pressure*area) up until, for example, the force acting on the second surface 138 of the piston 120 by spring 122, will not exceed the force acting on the first surface 136 by the pressure in the first portion of the chamber 132. As a result, the piston 120 and the piston rod of the Executive mechanisma moved in the direction of the first plate 110 to move the control fluid medium within the control valve 104.

Alternatively, to move the control fluid medium in the direction of the aperture to stop the flow of fluid through the control valve 104, the piston 120 may be moved in the direction of the second plate 112 by pumping the fluid through the hole to increase the pressure in the first portion of the chamber 132 to overcome the efforts acting on the second surface 138 by spring 122. As a result, the piston 120 and the piston rod of the actuator 124 is moved in the direction of the second plate 112 lane for the placement of the control fluid medium within the control valve 104.

For Assembly of the actuator 100 pruzina positioned in the chamber 118 on the second plate 112, and then the piston 120 and the piston rod of the actuator 124 is directed through the spring 122 and the diaphragm 126 and 128. However, since the spring 122 in the typical case completely flattened when the spring 122 into the chamber 118, attaching the first plate to the actuator 100 can be difficult. In some embodiments of the embodiments to provide a connection of the first plate 110 with the Executive mechanism 100 of the coupling rod 114 can be relatively long for the alignment apertures 140 of the first plate 110 with the connecting rods 114, when the spring 122 decompressed and/or partially protrudes out of the cylinder 108 together with the piston 120. When tightening fasteners 116 on the connecting rods 114 of the first plate 110 is moved in the direction of the cylinder 108 and compresses the spring 122 until, while, for example, the first plate 110 will not come into engagement with the end 142 of the cylinder 108. On the other hand, for disassembly of the actuator 100 can be removed fasteners 116 of the connecting rod 114 to provide a substantial straightening of the spring 122 before the first plate 110 may be removed from the actuator 100. In other embodiments, the embodiment of the multiple connecting rods may be changing the Lina, in order to provide a substantial straightening of the spring 122 before removing all fasteners 116 with the connecting rod 114.

In FIG.2 shows a variant of the actuator or the actuator valve 200 (for example, the piston of the actuator, the actuator unilateral action, the actuator double acting) attached to the housing 102 of the control valve 104 with multiple fasteners 106. The actuator 200 includes a cylinder 204 connected between the first plate 206 and the second plate 208 by means of several connecting rods 210 and fasteners 212. In contrast to the known actuator 100 described above, the cylinder 204 defines a chamber 214, which accommodates the piston 216 and the option device offset 218. The shifter 218 may be manufactured and/or produced as a stand-alone node or module, which is located in the chamber 214 to provide the actuator double action capability offset to ensure safety and reduce the complexity of Assembly and/or disassembly of a variant of the actuator. In addition, the shifter 218 may be used with piston actuator single acting to bias the piston, operation is connected to the control fluid medium. In practice, the shifter 218 can provide a piston actuator single-action capability offset for security and to reduce the complexity of Assembly and/or disassembly of a variant of the actuator.

As shown in FIG.2, the shifter 218 extends to install the control fluid medium through the piston 216, for example, in the open position and/or in the position of providing security (e.g., in open or in closed position). In contrast, in FIG.3 shows the shifter 218, compressed, at least partially, and the piston 216 at a distance from the first plate 206 to substantially reduce fluid flow through the control valve 104.

Option device offset 218 includes a first sleeve 220, the second sleeve 222 and the item to offset 224 (e.g., a spring) that is located between the first and second ends 226 and 228 of the respective sleeves 220 and 222. Element to offset 224 presses the first sleeve 220 from the second sleeve 222 in position, for example, the working body of the control valve 104 is in the open position. The first sleeve 220 has a diameter of 230, which is relatively smaller than the diameter 232 of the second sleeve 222, so that the second sleeve 222 at least partially covers the first sleeve 220. At that time, in the variant, which can be found in FIG.2, near the piston 216 is the first end 226, alternatively, near the piston 216 may be located a second end 228.

To limit movement of the first sleeve 220 relative to the second sleeve 222 and/or flexible connection along the sleeves 220 and 222 between them provides a stop 234. In this embodiment, the stop 234 includes first 236 and 238 second opposing flanges that are engaged and/or connection to constrain the movement and/or flexible connection between the sleeves 220 and 222. The first flange 236 extends in the direction of the inner surface 240 of the second sleeve 222 and/or is located close to the surface, and the second flange 238 extends in the direction of the outer surface 242 of the first ferrule 220 and/or is located close to the surface.

For Assembly of the actuator 200 shifter 218 is located in the chamber 214 so that the second end 228 is adjacent to the second plate 208. Then the stem or rod of the actuator 244 connected to the piston 216 is routed through the coaxially aligned apertures 246 and 248 defined by the ends 226 and 228, and through the aperture 250 and 252 defined by the second plate 208 and the holder 254, respectively. Unlike the actuator 100 described above in which the spring 122 (FIG.1) fully straightened when the spring 122 (PHI is .1) initially placed in the chamber 118 (FIG.1), element to offset 224 is compressed (for example, pre-loaded) and is contained within the device offset 218. Essentially, when the shifter 218, the actuator stem 244 and the piston 216 are located inside the chamber 214, the first plate 206 may be attached to the actuator 200 without performing any additional measures and/or precautions. For disassembly of the actuator 200 fasteners 212 may be disconnected, and the first plate 206 may be removed without prior removal of the load from element to offset 224, as indicated above.

When the operation to move the control fluid medium inside the control valve 104 is used, the pressure differential between the first part of the chamber 256 and the second part of the chamber 258. In particular, to move the control fluid medium in the direction to the diaphragm through an opening (not shown) is pumped by the fluid medium in such a way that the force acting on the first surface 260 of the piston 216, exceeds the force acting on the second surface 262 through the element for shifting device 224 offset 218. Conversely, to move the control fluid medium in the direction from the aperture fluid is released through the hole until, while, for example, the force de is corresponding to the second surface 262 through the shifter 218, does not exceed the force acting on the first surface 260 by the pressure in the first portion of the chamber 256.

In FIG.4 shows an enlarged view of a variant of the device offset 218. The shifter 218 may be adapted for use with any suitable actuating mechanism having any stroke length.

In FIG.5 shows the shifter 218, which includes additional stops 502 (e.g., stops limiting the stroke), United with the inner surface 240 of the second sleeve 222. Additional stops 502 may engage through the first flange 236 of the first sleeve 220 to limit movement of the first sleeve 220 in the direction of the second sleeve 222 and/or to prevent twisting in the ring element to offset 224. In working condition, when the force acting on the first surface 260 of the piston 216, exceeds the force acting on the second surface 262 through the element to offset 224, the shifter 218 may be compressed, and the first flange 236 may engage with additional stops 502 to limit movement of the first sleeve 220 in the direction of the second sleeve 222. This approach to picking device offset 218 additional stops 502 provides adjustment displacement control movement of fluid for a specific application, regardless of the admissible stroke length of the cylinder.

In FIG.6 shows the shifter 218, which includes additional stops 602 associated with the outer surface 242. Additional stops 602, basically, these additional stops 502 in the embodiment of FIG.5. However, additional stops 602 option can catch the second flange 238 of the second sleeve 222 instead of the first flange 236 of the first sleeve 220.

In FIG.7 shows a portion of the actuator 200 and the shifter 218 located in the chamber 214. In contrast to the variants described above, the shifter 218 includes a focus external adjustment 702 (for example, the focus adjustment in operating conditions), located near to the second end 228 and the inner surface 240 of the second sleeve 222. Focus external adjustment 702 includes a shaft 704 (e.g., a worm), which passes through the aperture 706 and 708 of the second plate 208 and the second end 228. Additionally, the focus external adjustment 702 may include a stop or ring 710, which at least partially covers the shaft 704 and may engage through the first flange 236 to limit movement of the first sleeve 220 relative to the second sleeve 222. To adjust the point at which the first flange 236 is engaged with an emphasis 710 and/or the shaft 704, it is possible to rotate the shaft 704 at the end 712 to adjust the position of the focus with external regulation is ovcoy 702 relative to the first flange 236. While the focus external adjustment 702 in FIG.7 includes an emphasis 710, in other embodiments, the focus external adjustment 702 may include an emphasis 710. In these embodiments, the first flange 236 may engage with the shaft 704 to limit movement of the sleeves 220 and 222 relative to each other.

In FIG.8 shows the shifter 218, which includes a focus external adjustment 802, which are basically similar to the focus external adjustment 702 in FIG.7. However, the end of the shaft 804 806 focus external adjustment 802 in FIG.8 is near to the second end 228, and not with the second plate 208 (FIG.2).

In FIG.9-11 shows the process of production and/or manufacturing variations of the device offset 900 (FIG.11). The second sleeve 902 may be located on the shaft 904, advancing from the Assembly 906 (e.g., from the cylinder Assembly so that the second flange 908 second sleeve 902 is located near the plate Assembly 910 906. Then aperture 912 of the first end 914 of the first sleeve 916 may be positioned around the shaft 904 so that the first end 914 is located near the plate 910, and the first flange 917 first sleeve 916 is located opposite the second flange 908 second sleeve 902. Further, the element for shifting 918 may be placed around the shaft 904 and partially inside the chamber 920 defined by the first sleeve 916. Then the second end 922 may be located the Yong on the shaft 904 thus, the element for shifting 918 is placed between the ends 914 and 922. Then you can position on the shaft 904 another plate 926 and fastener 928 may be screwed on the shaft 904 for mounting bushings 902 and 916, the second end 922 and element for shifting 918 relative to each other.

Then, as shown in FIG.10, the Assembly 906 may move another plate 926 to the plate 910 in the direction in the General case represented by arrows 1002, by reducing the length of the shaft 904 and adjustable compression element for shifting 918. After compression element for shifting 918 at a preset value can grab the second sleeve 902 and move it in the direction of the second end 922 so that the end 930 of the second sleeve 902 gears part 932 of the second end 922. You can then attach the second sleeve 902 to the second end 922 using a suitable method, such as welding, connection by gluing, etc.

When the second sleeve 902 is connected with the second end 922, the element for shifting 918 may be pre-loaded and fully placed inside the chamber 934, defined by the sleeves 902 and 916. Additionally, when the second sleeve 902 is connected to the second end 922, the shifter 900 cannot be dismantled and largely protected from unauthorized access. Fastener 928 and the shifter 900 can then be removed from the shaft. On this the m phase shifter 900 is ready for occupancy, for example, in the chamber 214 (FIG.2) of cylinder 204 (FIG.2).

In FIG.12 shows an alternative device offset 1200 that includes a first sleeve 1202, the second sleeve 1204 and the element for shifting 1206 (e.g., a spring) that is located between the first and second end caps 1208 and 1210 of the respective bushings 1202 and 1204. In some embodiments, embodiments of the sleeve 1202 and 1204 may be made of a composite material, and end caps 1208 and 1210 may be made of metal material.

To limit movement of the first sleeve 1202 relative to the second sleeve 1204 first sleeve 1202 includes a first ring 1212, United with the outer surface 1214 and the second sleeve 1204 includes a second ring 1216, United with the inner surface 1218. Additionally, in some embodiments of the incarnation to limit movement of the first sleeve 1202 relative to the second sleeve 1204 of the first end cap can at least partially cover the outer surface 1214 of the first sleeve 1202 and a size that allows the second ring 1216 to engage with a portion 1217 of the first end cap 1208 compression device offset 1200. Additionally or alternatively, in some embodiments of the incarnation to limit movement of the first sleeve 1202 relative to the second sleeve 120 second end cap 1210 may be covered by internal poverhnosti second sleeve 1204 and have dimensions allowing the first ring 1212 to engage with a part 1219 second end cap 1210 compression device offset 1200. Ring 1212 and/or 1214 may be made of any suitable material, such as, for example, a metal material.

For rolling joining the first sleeve 1202 to the second sleeve 1204 first ring 1212 may be connected to the outer surface 1214 by the location of the first circuit 1212 near the outer surface 1214 and injecting the adhesive through the opening 1220 and in the groove 1222 defined, for example, the first ring 1212. Similarly, the second ring 1216 may be connected with the inner surface 1218 by the location of the second ring 1216 near the inner surface 1218 and injecting the adhesive through the hole 1224 and in the groove 1226 defined, for example, the second ring 1216. The end 1228 of the first sleeve 1202 can then be directed through the opening 1230 second sleeve 1204.

To attach the second end cap 1210 to the second sleeve 1204 second end cap 1210 may be at least partially inserted into the chamber 1232 defined bushings 1202 and 1204, and then through the hole 1234 and into the groove 1236 can be injected adhesive. Then the element for shifting 1206 can be placed in the chamber 1232, and the first end cap 1208 may be at least partially placed near the outer surface 1214 per the second sleeve 1202 for attaching the element to offset 1206 inside the chamber 1232. As mentioned above, to attach the first end cap 1208 to the first sleeve 1202 through the hole 1238 and in the groove 1240 may be injected glue.

Although there have been described some possible embodiments of methods, devices, and finished products, they do not limit the scope of this patent. On the contrary, this patent covers all methods, devices, and the finished product, clearly fall in the amount claimed in the claims as literally, and the doctrine of equivalents.

1. The device offset for use with piston actuator, including:
the first sleeve at least partially covered by the second sleeve and movably connected with the second sleeve;
a stop to limit movement of the first sleeve relative to the second sleeve;
element for displacement, located between the first and second ends, respectively, first and second sleeve for push-UPS the first sleeve from the second sleeve; and
when this item is used to offset fully placed inside the chamber defined by the first sleeve and the second sleeve.

2. The shifter under item 1, characterized in that the shifter must be placed in the chamber of the piston of the actuator to push the piston in the position that provides the security.

3. The shifter on p. 2, characterized the eat, that at least one of the first and second ends located near the piston to push the piston in the position that provides the security.

4. The shifter under item 1, characterized in that the stop is located between the first sleeve and the second sleeve.

5. The shifter on p. 1, wherein the stop includes first and second opposing flanges, respectively, the first and second sleeves.

6. The shifter on p. 5, characterized in that the first flange is adjacent to the inner surface of the second sleeve and the second flange to the outer surface of the first sleeve.

7. The shifter under item 1, characterized in that it further comprises a second stop to limit movement of the first sleeve in the direction of the second sleeve.

8. The shifter under item 7, characterized in that the second stop is connected with the inner surface of the second sleeve.

9. The shifter under item 7, characterized in that the second stop connected to the outer surface of the first sleeve.

10. The shifter under item 7, characterized in that the second stop has an external adjustment.

11. The shifter under item 1, characterized in that the first and second ends define coaxially aligned aperture for receiving the rod.

12. The shifter under item 1, characterized in that the diameter of the first sleeve relative to me is the more, than the diameter of the second sleeve.

13. The actuator valve comprising: a housing that defines a chamber;
a piston located in the chamber for operative connection with a work management body of fluid medium gas lift valve; and
stand-alone module, located in the chamber to bias the piston and including:
the first sleeve at least partially covered by the second sleeve;
element for displacement, located between the first and second ends, respectively, first and second sleeve for push-UPS the first sleeve from the second sleeve;
means to limit movement of the first sleeve relative to the second sleeve;
means to limit movement of the first sleeve in the direction of the second sleeve including a stop for engagement by end of the first sleeve; and
emphasis connected with the inner surface of the second sleeve.

14. The actuator valve on p. 13, wherein the means to limit movement of the first sleeve relative to the second sleeve includes a stop.

15. The actuator valve on p. 14, wherein the stop includes first and second opposing flanges, respectively, the first and second sleeves.

16. The actuator valve on p. 13, characterized in that the stop is connected to the outer surface p. the pout sleeve.

17. The actuator valve on p. 13, wherein the first and second ends define coaxially aligned aperture for receiving the rod of the piston of the actuator.



 

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2 cl, 1 dwg

FIELD: transport.

SUBSTANCE: car variable-rigidity spring support 1 consists of main part 6 and rigid or semi-rigid insert 7. Suspension spring 1 rests directly onto rigid or semi-rigid insert 7. Said main part 6 comprises truncated-cone base 8 running from smaller diametre top side. Truncated cone elongation 9 runs coaxially from said base, elongation larger diametre being smaller than least diametre of base 8. Insert 7 comprises truncated-cone base 13 running from smaller diametre top side. Truncated cone elongation 14 runs coaxially from said base. Insert 7 has axial cavity with its inner shape and sizes corresponding to outer shape and sizes of elongation 9 of main part 6.

EFFECT: simplified design of support element.

9 cl, 8 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive suspensions and transport facilities incorporating such suspension. Suspension comprises spring 1, cover 3 and centering cup 7 supporting coiled spring end 2 in cover 3. Centering cup 7 has its top part provided with, in fact, round, press-fitting 11 that forms hollow part to receive cover 3. Ribs 14 are arranged along inner edges of cover 3. Shape of ribs 14 allows their arrangement on ledge 13 made inside press-fitting 11. Cover 3 and centering cup 7 comprises appliances to lock angular position of spring 1 relative to cup 7. Press-fitting depth varies continuously to make inclination over entire length interact with cover 3 and coiled spring end. The deepest part of press-fitting 11 forms locking appliances for edge 10 of cover 3. Transport facility comprises abode described suspension.

EFFECT: fixed angular position of spring in cover and on centering cup, simplified suspension assembly.

6 cl, 3 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry, particularly to suspensions. Proposed device comprises spring with different-diametre coils secured between the spring support plates. Inner and outer support plates 4, 3 are fitted on cylinder 6 of shock-absorbing post and radially spaced apart. When in 1st shock-absorbing position, spring 1 rests by section 1a of smaller-diametre coils d upon inner support plate 4. In 2nd shock-absorbing position (II), spring 1 rests by section 1b of larger-diametre coils D upon outer support plate 3.

EFFECT: simplified spring adjustment.

11 cl, 3 dwg

FIELD: construction, road engineering.

SUBSTANCE: invention is related to device for suspension of sound-insulation elements. Spring-loaded suspension comprises spring (6) and two fixtures (5, 7) for spring. One fixture (7) for spring is fixed on device (8) for suspension. Spring (6) is screwed onto first fixture (7). The second fixture (5) for spring is fixed on opening of sound-insulation element (3) by means of pressing disks (2, 4) and is screwed in spring (6) so that around 3 turns of spring (6) are left free. Spring (6) is made with rigidity that makes from 15000 N/m to 25000 N/m. Sound-insulation wall consists of bearing structure socle and spring-loaded suspensions. Sound-insulation elements of wall are fixed by means of spring-loaded suspension.

EFFECT: creation of frameless structure able to introduce efforts from all directions through fixing device into bearing structure.

2 cl, 1 dwg

FIELD: mechanics.

SUBSTANCE: invention relates to helical spring fastening and spring tension adjustment device. The proposed device comprises plate (P1) with two rows of holes (12, 13) spaced for a distance equal, approximately, to spring coil diametre. Holes of one row are displaced with respect to those of the other row. Plate (P1) is furnished with a gripping-locking device with a threaded rod that has a hook arranged on its one end. Aforesaid threaded rod is screwed into inner thread (15) made in plate (P1) with the plate axis parallel to that of the spring. Plate (P1) arranged between the rows of holes (12, 13) features the shape allowing aforesaid threaded rod passage. Plate (P1) comprises cylindrical wall with inner thread (15) arranged between two rows of holes (12, 13). Two flat parts (10) of plate (P1) are arranged on both sides of aforesaid cylindrical wall.

EFFECT: reliable fastening and accurate spring tension adjustment.

2 cl, 4 dwg

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