CN214466385U - Pressure control device for non-linear PRV valve crankcase - Google Patents
Pressure control device for non-linear PRV valve crankcase Download PDFInfo
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- CN214466385U CN214466385U CN202120080256.3U CN202120080256U CN214466385U CN 214466385 U CN214466385 U CN 214466385U CN 202120080256 U CN202120080256 U CN 202120080256U CN 214466385 U CN214466385 U CN 214466385U
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Abstract
The utility model discloses a nonlinear PRV valve crankcase pressure control device, including PRV valve gap, PRV diaphragm, pagoda type spring, PRV disk seat one side below is provided with the air inlet, PRV disk seat intermediate position is provided with the venthole, PRV disk seat is kept away from air inlet one end side and is provided with the gas outlet, PRV disk seat endotheca is equipped with pagoda type spring, PRV disk seat top joint has the PRV valve gap, be provided with the PRV diaphragm between PRV valve gap and the PRV disk seat, be provided with the PRV backing sheet between PRV diaphragm and the pagoda type spring. Compared with the prior art, the utility model reduced the volume of crankcase pressure valve, easy to assemble arranges, and the PRV diaphragm is from big littleer, has reduced the cost of governing valve, simple structure, and the practicality is strong.
Description
Technical Field
The utility model belongs to the technical field of crankcase pressure control equipment technique and specifically relates to a nonlinear PRV valve crankcase pressure control device.
Background
The most common engine crankcase pressure regulating valve at present generally comprises a PRV valve cover, a PRV diaphragm, a linear spring, a valve seat and the like, and the working principle is as follows, a cavity in front of the PRV valve cover and the PRV diaphragm is communicated with the outside, the air pressure is atmospheric pressure, the vacuum degree of the PRV diaphragm lower part, especially the air outlet is changed along with the change of the engine load, when the vacuum degree of the air outlet is large, the pressure difference between the upper side and the lower side of the PRV diaphragm is increased, the PRV diaphragm is pushed to move towards the air outlet, in order to avoid the air outlet from being completely blocked by the PRV diaphragm, a compression spring is usually arranged between the PRV diaphragm and the air outlet, the compression spring is a linear spring, when the vacuum degree of the crankcase is high, the air outlet is blocked by the PRV diaphragm to cause the crankcase to be close, when the vacuum degree is high, the regulating valve is not closed, the rigidity of the spring needs to be increased, and when the rigidity of the spring is increased, the PRV diaphragm needs to be selected for use, resulting in an increased crankcase pressure regulator valve volume and the use of large PRV diaphragms increases the cost of the regulator valve.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above problems existing in the prior art, the utility model provides a following technical scheme.
The utility model provides a technical scheme that its technical problem adopted is: a pressure control device of a nonlinear PRV valve crankcase comprises a PRV valve cover, a PRV membrane, a pagoda-shaped spring and a PRV valve seat, wherein the pagoda-shaped spring is sleeved in the PRV valve seat, the PRV valve cover is clamped above the PRV valve seat, the PRV membrane is arranged between the PRV valve cover and the PRV valve seat, and a PRV support sheet is arranged between the PRV membrane and the pagoda-shaped spring.
According to the pressure control device for the non-linear PRV valve crankcase, the air inlet is formed below one side of the PRV valve seat, the air outlet hole is formed in the middle of the PRV valve seat, and the air outlet is formed in the side face, away from the air inlet, of one end of the PRV valve seat.
In the above non-linear PRV valve crankcase pressure control device, the through hole is formed in the middle of the PRV membrane and the PRV support plate.
In the non-linear PRV valve crankcase pressure control device, the PRV valve cover is provided with an air hole.
In the nonlinear PRV valve crankcase pressure control device, the end with the small diameter of the pagoda-shaped spring is close to the PRV valve cover.
The beneficial effects of the utility model are that, through setting up pagoda type spring, can not influence the crankcase characteristic under the condition of not changing the PRV diaphragm, and the great regional crankcase pressure regulating valve of vacuum zone can not close yet, compares with prior art and has reduced the volume of crankcase pressure valve, and easy to assemble arranges, and the PRV diaphragm is from big diminish, has reduced the cost of governing valve. The utility model discloses simple structure, the practicality is strong.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a sectional view of the present invention;
fig. 2 is an explosion diagram of the present invention.
In the figure, 1, a PRV valve cover, 2, a PRV membrane, 3, a pagoda-shaped spring, 4, a PRV valve seat, 5, an air inlet, 6, an air outlet, 7, an air outlet hole and 8, a PRV supporting plate.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
[ example 1 ]
A pressure control device of a nonlinear PRV valve crankcase comprises a PRV valve cover 1, a PRV membrane 2, a pagoda-shaped spring 3 and a PRV valve seat 4, wherein the pagoda-shaped spring 3 is sleeved in the PRV valve seat 4, the PRV valve cover 1 is clamped above the PRV valve seat 4, the PRV membrane 2 is arranged between the PRV valve cover 1 and the PRV valve seat 4, and a PRV support sheet 8 is arranged between the PRV membrane 2 and the pagoda-shaped spring 3.
Further, an air inlet 5 is arranged below one side of the PRV valve seat 4, an air outlet 7 is arranged in the middle of the PRV valve seat 4, and an air outlet 6 is arranged on the side face of one end, far away from the air inlet 5, of the PRV valve seat 4.
Furthermore, a through hole is arranged in the middle of the PRV membrane 2 and the PRV supporting sheet 8.
Further, the PRV valve cover 1 is provided with an air hole.
Furthermore, the small end of the pagoda-shaped spring 3 is close to the PRV valve cover 1.
Specifically, the utility model discloses during the use, chooseing for use the pagoda type spring 3 of the gradual increase type of rigidity, along with the increase of pressure differential, the deformation volume of pagoda type spring 3 is more and more littleer, can not influence the crankcase characteristic under the condition of not changing PRV diaphragm 2, and the great regional crankcase pressure regulating valve of vacuum area also can not close.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (5)
1. The utility model provides a non-linear PRV valve crankcase pressure control device, includes PRV valve gap (1), PRV diaphragm (2), pagoda type spring (3), PRV disk seat (4), its characterized in that: the valve seat is characterized in that a pagoda-shaped spring (3) is sleeved in the PRV valve seat (4), a PRV valve cover (1) is clamped above the PRV valve seat (4), a PRV membrane (2) is arranged between the PRV valve cover (1) and the PRV valve seat (4), and a PRV supporting sheet (8) is arranged between the PRV membrane (2) and the pagoda-shaped spring (3).
2. The non-linear PRV valve crankcase pressure control device according to claim 1, characterized in that an air inlet (5) is arranged below one side of the PRV valve seat (4), an air outlet (7) is arranged in the middle of the PRV valve seat (4), and an air outlet (6) is arranged on the side of one end of the PRV valve seat (4) far away from the air inlet (5).
3. The non-linear PRV valve crankcase pressure control device according to claim 1, wherein a through hole is provided in a position intermediate the PRV diaphragm (2) and the PRV support plate (8).
4. The non-linear PRV valve crankcase pressure control device according to claim 1, wherein the PRV valve cover (1) is provided with an air vent.
5. The non-linear PRV valve crankcase pressure control device according to claim 1, wherein the smaller diameter end of the pagoda spring (3) is close to the PRV valve cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120080256.3U CN214466385U (en) | 2021-01-13 | 2021-01-13 | Pressure control device for non-linear PRV valve crankcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120080256.3U CN214466385U (en) | 2021-01-13 | 2021-01-13 | Pressure control device for non-linear PRV valve crankcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214466385U true CN214466385U (en) | 2021-10-22 |
Family
ID=78139088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120080256.3U Active CN214466385U (en) | 2021-01-13 | 2021-01-13 | Pressure control device for non-linear PRV valve crankcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214466385U (en) |
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2021
- 2021-01-13 CN CN202120080256.3U patent/CN214466385U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 266000 No. 5, Shuangwan Road, Chengyang District, Qingdao, Shandong Patentee after: Qingdao Ansheng Xinda Automobile Technology Co.,Ltd. Address before: 266000 No. 8, Kangyuan Road, Nanwan community, Jihongtan street, Chengyang District, Qingdao City, Shandong Province Patentee before: QINGDAO ANSHENGDA ELECTROMECHANICAL TECHNOLOGY Co.,Ltd. |
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| CP03 | Change of name, title or address |