CN212406884U - PCRV bypass valve that admits air - Google Patents
PCRV bypass valve that admits air Download PDFInfo
- Publication number
- CN212406884U CN212406884U CN202020483711.XU CN202020483711U CN212406884U CN 212406884 U CN212406884 U CN 212406884U CN 202020483711 U CN202020483711 U CN 202020483711U CN 212406884 U CN212406884 U CN 212406884U
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- China
- Prior art keywords
- annular
- top surface
- hole
- rubber film
- air inlet
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- 238000007789 sealing Methods 0.000 claims abstract description 33
- 238000005728 strengthening Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model discloses a PCRV bypass valve that admits air, its characterized in that: the rubber film sealing device comprises a shell and a rubber film, wherein an air inlet cavity is formed in the bottom of the shell, a through hole is formed in the center of the top surface of the shell and communicated with the air inlet cavity, the middle of the top surface of the rubber film is mounted on a support, a lifting rod is inserted into the through hole, the bottom of the lifting rod is connected with the middle of the top surface of the support, a sealing plate is arranged at the top of the lifting rod, and the sealing plate is arranged above the through hole; the air inlet cavity is formed in the shell, a spring is sleeved outside the support, the top of the spring abuts against the top surface of the air inlet cavity, a first annular protrusion is arranged in the middle of the bottom surface of the shell, an annular groove is formed in the outer edge of the top surface of the rubber film, and the bottom of the first annular protrusion abuts against the inside of the annular groove. The utility model discloses the installation and the dismantlement of the valve body of being convenient for have prolonged life, have reduced the damage of vehicle, have prolonged the life of vehicle.
Description
Technical Field
The utility model relates to a valve for the turbo charger especially relates to a PCRV bypass valve that admits air.
Background
When the engine is in a deceleration state, the compressor side of the supercharger can continuously convey high-pressure gas to the air inlet manifold in a short time, so that the instantaneous pressure between the valves and in the air inlet pipeline is overlarge, the throttle valve and the engine are damaged for a long time, and the performance and the service life of the vehicle are influenced.
Disclosure of Invention
The utility model aims at providing a PCRV bypass valve that admits air through using this structure, improves the convenience of installation, reduces the damage of automobile engine and air throttle, guarantees the performance of car, prolongs the life of car.
In order to achieve the above purpose, the utility model adopts the technical scheme that: a PCRV air inlet bypass valve comprises a shell and a rubber film arranged at the bottom of the shell, wherein an air inlet cavity is formed in the bottom of the shell, a through hole is formed in the center of the top surface of the shell and communicated with the air inlet cavity, the middle of the top surface of the rubber film is installed on a support, a lifting rod is inserted into the through hole, the bottom of the lifting rod is connected with the middle of the top surface of the support, a sealing plate is arranged at the top of the lifting rod, and the sealing plate is arranged above the through hole; a spring is sleeved outside the support, the top of the spring abuts against the top surface of the air inlet cavity, a first annular bulge is arranged in the middle of the bottom surface of the shell and arranged outside the support, an annular groove is formed in the outer edge of the top surface of the rubber film, and the bottom of the first annular bulge abuts against the inside of the annular groove; and under the state that the spring extends out, the bottom of the sealing plate is abutted against the top surface of the through hole.
In the above technical solution, in the extended state of the spring, the annular groove is completely clamped at the bottom of the first annular protrusion, and seals the bottom of the first annular protrusion, the sealing plate abuts against the top surface of the through hole, and seals the top of the through hole, and the sealing plate and the rubber film form a closed space with the air inlet cavity; under the compression state of the spring, the lifting rod and the sealing plate ascend, the sealing between the sealing plate and the top surface of the through hole is released, and a gap is formed between the first annular protrusion and the annular groove, so that the sealing between the rubber film and the bottom surface of the first annular protrusion is released.
In the above technical scheme, a second annular bulge is arranged in the middle of the top surface of the support, the second annular bulge and the through hole are coaxially arranged, the bottom of the lifting rod penetrates through the middle of the second annular bulge and is connected with the middle of the top surface of the support, the spring is sleeved outside the second annular bulge, the bottom of the spring abuts against the top surface of the support, and the top of the spring abuts against the top surface of the air inlet cavity.
In the above technical scheme, be equipped with downwardly extending's third annular arch on the top surface of cavity of admitting air, the third annular arch with the through-hole coaxial setting, the bellied internal diameter of third annular is greater than or equal to the diameter of through-hole, the bellied external diameter of third annular is less than the bellied internal diameter of second annular, the middle part of carrying the pull rod is worn in the bellied inside of second annular, just the bellied top cover of second annular is located the bellied bottom outside of third annular.
Among the above-mentioned technical scheme, it is protruding to be equipped with fourth annular on the outer fringe face of casing, the bellied top surface of fourth annular set up in the top surface top of casing, the bellied bottom surface of fourth annular set up in the bottom surface below of casing, be equipped with the multiunit strengthening rib on the top surface of casing, the outer wall of strengthening rib with the inner wall of the bellied top of fourth annular links to each other.
In the technical scheme, a plurality of groups of arc-shaped hook plates extending downwards are uniformly distributed at the bottom of the fourth annular bulge in an annular manner, and hooks bent towards the upper side of the inner side are arranged at the bottom of each group of arc-shaped hook plates.
In the above technical scheme, the rubber film is arranged above the inner sides of the plurality of groups of hooks.
In the technical scheme, a plurality of groups of vertical plates are uniformly distributed on the bottom surface of the shell in an annular manner, the vertical plates are arranged between the rubber film and the fourth annular bulge, and the outer edge surface of the rubber film is abutted against the inner wall of the vertical plate.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the utility model discloses well air inlet bypass valve can utilize the spring to promote rubber membrane and closing plate and descend simultaneously and seal the bottom and the top of air inlet cavity in the use is not suitable for the in-process, can utilize the negative pressure in the booster to hold the closing plate and lift in the use, drive and constitute the clearance between rubber membrane and the first annular arch, the air admission of the little air current of so being convenient for can reduce the impact force to valve and pipeline, can not only play the guard action, can not influence the normal work of engine again, can also play the pressure release guard action simultaneously, effectively guarantee the performance of car, increase of service life;
2. the rubber film in the utility model is connected with the first annular bulge through the annular groove, when the rubber film is denatured, a small gap is formed between the annular groove and the first annular bulge, which can reduce the flow velocity of the air flow and prevent the rubber film from being separated from the first annular bulge, so that the rubber film can be continuously tightly matched with the first annular bulge when being recovered, thereby effectively ensuring the use stability and quality;
3. compared with the mode of adopting bolt connection, the utility model has the advantages that the installation and the disassembly of the air inlet bypass valve are convenient, the integral performance of the product can not be damaged, the product can be prevented from cracking and other product damage problems, and the service life of the product can be effectively prolonged;
4. the utility model discloses in through the setting of fourth annular arch and strengthening rib, can strengthen the intensity of product, prolong its life.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
fig. 2 is a schematic cross-sectional structure diagram in the first embodiment of the present invention.
Wherein: 1. a housing; 2. a rubber film; 3. an air intake cavity; 4. a through hole; 5. a support; 6. lifting a pull rod; 7. a sealing plate; 8. a spring; 9. a first annular projection; 10. an annular groove; 11. a second annular projection; 12. a third annular projection; 13. a fourth annular projection; 14. reinforcing ribs; 15. an arc-shaped hook plate; 16. a hook; 17. a riser.
Detailed Description
The invention will be further described with reference to the following drawings and examples:
the first embodiment is as follows: referring to fig. 1 and 2, the PCRV air inlet bypass valve comprises a shell 1 and a rubber membrane 2 arranged at the bottom of the shell, wherein an air inlet cavity 3 is arranged at the bottom of the shell, a through hole 4 is arranged in the center of the top surface of the shell, the through hole is communicated with the air inlet cavity, the middle of the top surface of the rubber membrane is arranged on a support 5, a lifting rod 6 is inserted into the through hole, the bottom of the lifting rod is connected with the middle of the top surface of the support, a sealing plate 7 is arranged at the top of the lifting rod, and the sealing plate is arranged above the through hole; a spring 8 is sleeved outside the support, the top of the spring abuts against the top surface of the air inlet cavity, a first annular bulge 9 is arranged in the middle of the bottom surface of the shell, the first annular bulge is arranged outside the support, an annular groove 10 is formed in the outer edge of the top surface of the rubber film, and the bottom of the first annular bulge abuts against the inside of the annular groove; and under the state that the spring extends out, the bottom of the sealing plate is abutted against the top surface of the through hole.
The annular groove is completely clamped at the bottom of the first annular protrusion and seals the bottom of the first annular protrusion in an extending state of the spring, the sealing plate is abutted against the top surface of the through hole and seals the top of the through hole, and the sealing plate and the rubber film form a closed space for the air inlet cavity; under the compression state of the spring, the lifting rod and the sealing plate ascend, the sealing between the sealing plate and the top surface of the through hole is released, and a gap is formed between the first annular protrusion and the annular groove, so that the sealing between the rubber film and the bottom surface of the first annular protrusion is released.
In this embodiment, in actual use, the normal spring is in an extended state, and the valve body is in a sealed state at this time, so that air cannot enter or exit. When the opening of the throttle valve is reduced or closed, the engine continues to suck air, a negative pressure is formed in the air inlet manifold, the negative pressure is connected with the top of the shell through a pipeline, the negative pressure adsorption sealing plate rises and pulls the rubber film to lift, so that a gap is formed between the rubber film and the air inlet cavity for air inlet, a gap is formed between the lifting rod and the through hole for air outlet, so that high-pressure air from the air compressor side of the supercharger bypasses the front pipeline of the air compressor of the supercharger, the pressure relief protection effect is realized, the instant pressure in the air inlet pipeline is reduced, the damage to the throttle valve and the engine is reduced, the performance of a vehicle is ensured, and the service life.
Referring to fig. 2, a second annular bulge 11 is arranged in the middle of the top surface of the support, the second annular bulge and the through hole are coaxially arranged, the bottom of the lifting rod penetrates through the middle of the second annular bulge to be connected with the middle of the top surface of the support, the spring is sleeved outside the second annular bulge, the bottom of the spring abuts against the top surface of the support, and the top of the spring abuts against the top surface of the air inlet cavity.
Through the setting of second annular bulge, the entangle of the spring of being convenient for guarantees to promote support and rubber membrane decline.
Referring to fig. 2, a third annular protrusion 12 extending downward is arranged on the top surface of the air inlet cavity, the third annular protrusion is coaxially arranged with the through hole, the inner diameter of the third annular protrusion is greater than or equal to the diameter of the through hole, the outer diameter of the third annular protrusion is smaller than the inner diameter of the second annular protrusion, the middle part of the lifting rod penetrates through the inside of the second annular protrusion, and the top part of the second annular protrusion is sleeved outside the bottom part of the third annular protrusion.
Through the setting of third annular arch and second annular arch, can enough carry out a direction and extension to the removal of carrying the pull rod, reduce the deformation of carrying the pull rod, simultaneously, the bellied internal diameter of third annular is less than the bellied internal diameter of second annular, and the clearance between the two is convenient for gaseous flow like this.
Referring to fig. 1 and 2, a fourth annular protrusion 13 is arranged on the outer edge surface of the shell, the top surface of the fourth annular protrusion is arranged above the top surface of the shell, the bottom surface of the fourth annular protrusion is arranged below the bottom surface of the shell, a plurality of groups of reinforcing ribs 14 are arranged on the top surface of the shell, and the outer walls of the reinforcing ribs are connected with the inner wall above the fourth annular protrusion.
Adopt the bellied setting of fourth annular, can carry out a enhancement to the periphery that can, simultaneously, the installation of the casing of being convenient for adopts the setting of strengthening rib simultaneously, further strengthens the intensity of casing, reduces the damage that causes because the air current strikes, increase of service life.
Referring to fig. 1 and 2, a plurality of groups of arc-shaped hook plates 15 extending downwards are annularly and uniformly distributed at the bottom of the fourth annular protrusion, and a hook 16 bent towards the upper side is arranged at the bottom of each group of arc-shaped hook plates. Through the setting of arc pothook board and pothook, the installation and the dismantlement of casing can be convenient for like this, guarantee installation fastness and stability.
Referring to fig. 1 and 2, the rubber film is disposed above the inner sides of the plurality of sets of hooks. The rubber film is positioned above the inner side of the clamping hook, so that the deformation of the rubber film cannot touch the connecting part, and the use stability and quality of the rubber film are ensured.
Referring to fig. 1, a plurality of groups of vertical plates 17 are uniformly distributed on the bottom surface of the shell in an annular manner, the vertical plates are arranged between the rubber film and the fourth annular protrusion, and the outer edge surface of the rubber film is abutted against the inner wall of the vertical plate. Through the setting of multiunit riser, on annular groove and the bellied basis of first annular, can carry on spacingly to the lateral surface of rubber membrane, prevent that rubber membrane from breaking away from first annular when warping, guarantee spacing quality.
Claims (8)
1. A PCRV intake bypass valve characterized by: the rubber film sealing device comprises a shell and a rubber film arranged at the bottom of the shell, wherein an air inlet cavity is formed in the bottom of the shell, a through hole is formed in the center of the top surface of the shell and communicated with the air inlet cavity, the middle of the top surface of the rubber film is arranged on a support, a lifting rod is inserted into the through hole, the bottom of the lifting rod is connected with the middle of the top surface of the support, a sealing plate is arranged at the top of the lifting rod, and the sealing plate is arranged above the through hole; a spring is sleeved outside the support, the top of the spring abuts against the top surface of the air inlet cavity, a first annular bulge is arranged in the middle of the bottom surface of the shell and arranged outside the support, an annular groove is formed in the outer edge of the top surface of the rubber film, and the bottom of the first annular bulge abuts against the inside of the annular groove; and under the state that the spring extends out, the bottom of the sealing plate is abutted against the top surface of the through hole.
2. The PCRV intake bypass valve of claim 1, wherein: in the extending state of the spring, the annular groove is completely clamped at the bottom of the first annular bulge and seals the bottom of the first annular bulge, the sealing plate is abutted against the top surface of the through hole and seals the top of the through hole, and the sealing plate and the rubber film form a closed space for the air inlet cavity; under the compression state of the spring, the lifting rod and the sealing plate ascend, the sealing between the sealing plate and the top surface of the through hole is released, and a gap is formed between the first annular protrusion and the annular groove, so that the sealing between the rubber film and the bottom surface of the first annular protrusion is released.
3. The PCRV intake bypass valve of claim 1, wherein: the middle of the top surface of the support is provided with a second annular bulge, the second annular bulge and the through hole are coaxially arranged, the bottom of the lifting rod penetrates through the middle of the second annular bulge and is connected with the middle of the top surface of the support, the spring is sleeved outside the second annular bulge, the bottom of the spring is abutted against the top surface of the support, and the top of the spring is abutted against the top surface of the air inlet cavity.
4. The PCRV intake bypass valve of claim 3, wherein: the air inlet structure is characterized in that a third annular protrusion extending downwards is arranged on the top surface of the air inlet cavity, the third annular protrusion and the through hole are coaxially arranged, the inner diameter of the third annular protrusion is larger than or equal to the diameter of the through hole, the outer diameter of the third annular protrusion is smaller than the inner diameter of the second annular protrusion, the middle of the lifting rod penetrates through the inner portion of the second annular protrusion, and the top of the second annular protrusion is sleeved on the outer side of the bottom of the third annular protrusion.
5. The PCRV intake bypass valve of claim 1, wherein: the outer fringe face of casing is equipped with the fourth annular arch, the bellied top surface of fourth annular set up in the top surface top of casing, the bellied bottom surface of fourth annular set up in the bottom surface below of casing, be equipped with the multiunit strengthening rib on the top surface of casing, the outer wall of strengthening rib with the inner wall of the bellied top of fourth annular links to each other.
6. The PCRV intake bypass valve of claim 5, wherein: the bottom of the fourth annular bulge is annularly and uniformly distributed with a plurality of groups of arc-shaped hook plates extending downwards, and the bottom of each group of arc-shaped hook plates is provided with hooks bent towards the upper side of the inner side.
7. The PCRV intake bypass valve of claim 6, wherein: the rubber film is arranged above the inner sides of the plurality of groups of clamping hooks.
8. The PCRV intake bypass valve of claim 6, wherein: the bottom surface of the shell is provided with a plurality of groups of vertical plates which are uniformly distributed in an annular mode, the vertical plates are arranged between the rubber film and the fourth annular bulge, and the outer edge surface of the rubber film is abutted against the inner wall of each vertical plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020483711.XU CN212406884U (en) | 2020-04-03 | 2020-04-03 | PCRV bypass valve that admits air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020483711.XU CN212406884U (en) | 2020-04-03 | 2020-04-03 | PCRV bypass valve that admits air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212406884U true CN212406884U (en) | 2021-01-26 |
Family
ID=74369647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020483711.XU Expired - Fee Related CN212406884U (en) | 2020-04-03 | 2020-04-03 | PCRV bypass valve that admits air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212406884U (en) |
-
2020
- 2020-04-03 CN CN202020483711.XU patent/CN212406884U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |