CN204041161U - A kind of mazy type crank case vent valve - Google Patents
A kind of mazy type crank case vent valve Download PDFInfo
- Publication number
- CN204041161U CN204041161U CN201420483241.1U CN201420483241U CN204041161U CN 204041161 U CN204041161 U CN 204041161U CN 201420483241 U CN201420483241 U CN 201420483241U CN 204041161 U CN204041161 U CN 204041161U
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- CN
- China
- Prior art keywords
- valve body
- flow path
- air outlet
- outlet hole
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of mazy type crank case vent valve, comprise valve seat and valve gap, the inside of described valve seat has venting flow path and valve body installation cavity, the side of valve body installation cavity is provided with interface of giving vent to anger, described venting flow path is provided with intake interface and machine oil return, and the upper end of the inner end of the venting flow path of described valve seat is provided with air outlet hole post, laterally flexible sheet is provided with in described valve body installation cavity, the middle part of described flexible sheet is provided with the valve body of mating and covering in described air outlet hole capital end, the inside of described air outlet hole post is provided with spring, described air outlet hole post Exhaust Gas backs down described valve body, flow out from described interface of giving vent to anger.The utility model solves in conventional art the problem that the machine oil of Exhaust Gas can not reclaim by the vent valve that is used in crankcase, and can maintain the air pressure balance of crankcase inside, practical, is worthy to be popularized.
Description
Technical field
The utility model relates to a kind of mazy type crank case vent valve.
Background technique
Engine crankcase raises and the evaporation of machine oil along with temperature, the pressure increase of crankcase, valve mechanism cover must be opened a mouth and allow excessive gas in crankcase discharge.At present, prior art can fill a vent valve in valve mechanism cover, when pressure reaches certain value, excessive gas flows out from vent valve, but there is mixing machine oil in excessive gas, the method for this direct discharge, makes gas be inconjunction with machine oil and discharge together, machine oil directly flows out from vent valve, and oil consumption is larger.Meanwhile, once negative pressure condition appears in engine interior, will occur gas suck-back situation, crankcase internal pressure is uneven.
Model utility content
The utility model, in order to solve the above-mentioned deficiency of prior art, proposes a kind of mazy type crank case vent valve.
In order to solve the problems of the technologies described above, the utility model is by the following technical solutions: a kind of mazy type crank case vent valve, comprise valve seat and valve gap, the inside of described valve seat has spiral venting flow path and is located at the valve body installation cavity on venting flow path top, the side of described valve body installation cavity is provided with interface of giving vent to anger, and described valve gap is arranged on the top of valve body installation cavity, the court of the outer end of described venting flow path has intake interface, the court of the inner end of venting flow path has machine oil return, and the upper end of the inner end of the venting flow path of described valve seat is provided with air outlet hole post, the bottom of described air outlet hole post is communicated with venting flow path inside, laterally flexible sheet is provided with in described valve body installation cavity, the middle part of described flexible sheet is provided with the valve body of mating and covering in described air outlet hole capital end, the inside of described air outlet hole post is provided with spring, the upper end of this spring is tightened in valve body, described air outlet hole post Exhaust Gas backs down described valve body, flow out from described interface of giving vent to anger.
Compared with prior art, the utility model is designed with mazy spiral helicine venting flow path in valve seat, gas with organic oil in venting flow path can be cushioned, and by spiral labyrinth channel, utilize rotating inertia force, make machine oil be attached on venting flow path shell body wall in rotation, get back in crankcase from machine oil return again, and discharge without the air flush gas interface of machine oil, thus ensure that the air pressure balance in crankcase, and saved machine oil resource.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model;
Fig. 2 is worm's eye view of the present utility model;
Fig. 3 is side structure schematic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, model utility is described in detail.
As shown in Figure 1,2 and 3, the mazy type crank case vent valve that the utility model proposes, comprise valve seat 1 and valve gap 2, the inside of valve seat 1 has spiral venting flow path 3 and is located at the valve body installation cavity 9 on venting flow path top, valve body installation cavity 9 is plate-like and is a cavity, the side of valve body installation cavity 9 is provided with interface 10 of giving vent to anger, and valve gap 2 is arranged on the top of valve body installation cavity 9, the court of the outer end of venting flow path 3 has intake interface 4, the court of the inner end of venting flow path 3 has machine oil return 5, and the upper end of the inner end of the venting flow path 3 of valve seat is provided with air outlet hole post 6, the bottom of air outlet hole post 6 is communicated with venting flow path 3 inside, laterally flexible sheet 8 is provided with in valve body installation cavity 9, the middle part of flexible sheet 8 is provided with the valve body 81 of mating and covering in air outlet hole post 6 top, the inside of air outlet hole post 6 is provided with spring 11, the upper end of this spring is tightened in valve body 81, the gas that air outlet hole post 6 is discharged backs down described valve body, from giving vent to anger, interface 10 flows out.
The utility model is installed in valve mechanism cover, intake interface connects the valve mechanism cover with crankcase, in crankcase, excessive gas enters intake interface from valve mechanism cover, gas flows to vent valve spring controlled valve place along the helical vent runner 3 of turbine curve, in venting flow path flow process, due to spiral labyrinth channel, utilize rotating inertia force, the machine oil in Exhaust Gas is made to be attached on venting flow path shell body wall in rotation, get back in crankcase from machine oil return again, vent valve spring controlled valve place of the present utility model is the technology that prior art is commonly used, namely when gas plays spring 11 and the flexible sheet of tension by air outlet hole capital, arrive between valve gap and in the space of valve body installation cavity 9, flow out from interface of giving vent to anger again.By being optimized design to diaphragm, spring, can ensure that crankcase internal pressure balances.
Above-described embodiment only have expressed several mode of execution of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the utility model patent and protection domain should be as the criterion with appended claims.
Claims (1)
1. a mazy type crank case vent valve, it is characterized in that: comprise valve seat (1) and valve gap (2), the inside of described valve seat (1) has spiral venting flow path (3) and is located at the valve body installation cavity (9) on venting flow path top, the side of described valve body installation cavity (9) is provided with interface of giving vent to anger (10), and described valve gap (2) is arranged on the top of valve body installation cavity (9), the court of the outer end of described venting flow path (3) has intake interface (4), the court of the inner end of venting flow path (3) has machine oil return (5), and the upper end of the inner end of the venting flow path of described valve seat (3) is provided with air outlet hole post (6), the bottom of described air outlet hole post (6) is communicated with venting flow path (3) inside, laterally flexible sheet (8) is provided with in described valve body installation cavity (9), the middle part of described flexible sheet (8) is provided with coupling and covers valve body (81) in described air outlet hole post (6) top, the inside of described air outlet hole post (6) is provided with spring (11), the upper end of this spring is tightened in valve body (81), the gas that described air outlet hole post (6) is discharged backs down described valve body, flow out from described interface of giving vent to anger (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483241.1U CN204041161U (en) | 2014-08-26 | 2014-08-26 | A kind of mazy type crank case vent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420483241.1U CN204041161U (en) | 2014-08-26 | 2014-08-26 | A kind of mazy type crank case vent valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204041161U true CN204041161U (en) | 2014-12-24 |
Family
ID=52241838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420483241.1U Expired - Fee Related CN204041161U (en) | 2014-08-26 | 2014-08-26 | A kind of mazy type crank case vent valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204041161U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119637A (en) * | 2016-11-30 | 2018-06-05 | 长城汽车股份有限公司 | Breather valve |
-
2014
- 2014-08-26 CN CN201420483241.1U patent/CN204041161U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108119637A (en) * | 2016-11-30 | 2018-06-05 | 长城汽车股份有限公司 | Breather valve |
| CN108119637B (en) * | 2016-11-30 | 2021-05-14 | 长城汽车股份有限公司 | Vent valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20200826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |