CN201582008U - Nylon gasket for cover lid of air valve chamber of engine - Google Patents
Nylon gasket for cover lid of air valve chamber of engine Download PDFInfo
- Publication number
- CN201582008U CN201582008U CN2009201806611U CN200920180661U CN201582008U CN 201582008 U CN201582008 U CN 201582008U CN 2009201806611 U CN2009201806611 U CN 2009201806611U CN 200920180661 U CN200920180661 U CN 200920180661U CN 201582008 U CN201582008 U CN 201582008U
- Authority
- CN
- China
- Prior art keywords
- valve chamber
- engine
- gasket
- boss
- oil
- 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
Links
- 239000004677 Nylon Substances 0.000 title claims abstract description 21
- 229920001778 nylon Polymers 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 125000006850 spacer group Chemical group 0.000 claims description 15
- 230000000694 effects Effects 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 10
- 239000010721 machine oil Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Images
Abstract
The utility model discloses a nylon gasket for a cover lid of an air valve chamber of an engine. The nylon gasket comprises a gasket body (1) and a boss (2), wherein a sealing structure is arranged on the lateral side of the gasket body (1), which is opposite to the boss (2); the sealing structure is particularly two bosses (3) formed on the plane of the gasket body (1); and the cross section of the bosses (3) in the axial direction is asymmetric about the axis in shape, and an oil returning slot (4) is formed on the outer edge of one boss (3). By adding the small bosses standing in a circle at two parts and the oil returning slot to the surface, where the nylon gasket for the cover lid of the air valve chamber of the engine is fitted with the sealing surface of the engine, and designing the nylon gasket into an asymmetric shape, the nylon gasket having the special structure can increase the local compression stress of the sealing surface, lead the condensed oil to return and finally improve the sealing effect.
Description
Technical field
The utility model relates to a kind of nylon spacer, especially relates to a kind of engine valve chamber cover cap nylon spacer.
Background technique
Motor can produce certain piston air leakage in operation process, and because the existence of the machine oil splash lubrication of motor own has just produced the oil gas mixing phenomena between the two.This part oil gas mixed air can produce the machine oil phenomenon of condensing on the sealing surface of engine gasket sheet, engine operating duration has been grown, and will make to have certain oil film at sealed faying face, thereby can infiltrate away gradually from sealing part.Cause motor the phenomenon of oil impregnate to occur, influence the proper functioning of motor.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of engine valve chamber cover cap nylon spacer at problems of the prior art, its objective is the sealing effect that improves nylon spacer by the sealing configuration that is provided with and oil-return groove on this nylon spacer.
The technical solution of the utility model is this kind engine valve chamber cover cap nylon spacer, comprises shim body and boss, and side relative with boss on the described shim body is provided with sealing configuration.
Described sealing configuration is for being provided with two projectioies on the plane of shim body, projection sectional shape in axial direction is asymmetric with respect to axis.
Described one of them protruding outer edge is provided with oil-return groove.
A kind of engine valve chamber cover cap with above-mentioned special construction has the following advantages with nylon spacer:
1, this kind engine valve chamber cover cap with nylon spacer by with face that the motor sealing surface matches on increase trickle projection and the oil-return groove that two places encompass week, and be designed to asymmetric shape, thereby reach localized compressive force that improves sealing surface and the oil return that guides condensation of oil, finally play the effect that improves sealing effect.
2, this kind engine valve chamber cover cap is simple in structure with nylon spacer, uses reliably, has good usability.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is a structural representation of the present utility model.
In Fig. 1,1: shim body; 2: boss; 3: projection; 4: oil-return groove.
Embodiment
By structure shown in Figure 1 as can be known, this kind engine valve chamber cover cap comprises shim body 1 and boss 2 with nylon spacer, side relative with boss 2 on the shim body 1 is provided with sealing configuration, sealing configuration is for being provided with two projectioies 3 on the plane of shim body 1, projection 3 sectional shape in axial direction is asymmetric with respect to axis, and the outer edge of one of them projection 3 is provided with oil-return groove 4.
When the valve chamber cover body is exerted pressure to pad, by on the bottom surface of nylon spacer body 1, increasing two asymmetrical protruding 3 with mould, share by two asymmetrical protruding 3 sharing from the whole bottom surface of former cause changing into preferentially, have only decrement when projection 3 Shi Caihui that acquires a certain degree to give whole bottom surface from the valve chamber cover applied pressure.This structure has strengthened the compression pressure at protruding 3 places, thereby has improved the sealability of pad; Be used to store the oil that gathers by the oil-return groove 4 that increases simultaneously, and the design of the different amount by protruding 3 both sides, the oil that gathers between the guide hump 3 is got back to oil gas zone in the valve chamber cover as much as possible, reduces the risk of oil impregnate, thereby improves the sealability of valve chamber cover.
Claims (3)
1. an engine valve chamber cover cap nylon spacer comprises shim body (1) and boss (2), it is characterized in that: described shim body (1) goes up the side relative with boss (2) and is provided with sealing configuration.
2. a kind of engine valve according to claim 1 chamber cover cap nylon spacer, it is characterized in that: described sealing configuration is for being provided with two projectioies (3) on the plane of shim body (1), projection (3) sectional shape in axial direction is asymmetric with respect to axis.
3. a kind of engine valve according to claim 2 chamber cover cap nylon spacer, it is characterized in that: the outer edge of described one of them projection (3) is provided with oil-return groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201806611U CN201582008U (en) | 2009-11-19 | 2009-11-19 | Nylon gasket for cover lid of air valve chamber of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201806611U CN201582008U (en) | 2009-11-19 | 2009-11-19 | Nylon gasket for cover lid of air valve chamber of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582008U true CN201582008U (en) | 2010-09-15 |
Family
ID=42724006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201806611U Expired - Fee Related CN201582008U (en) | 2009-11-19 | 2009-11-19 | Nylon gasket for cover lid of air valve chamber of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582008U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573464A (en) * | 2012-07-19 | 2014-02-12 | 通用汽车环球科技运作有限责任公司 | Multi-directional asymmetric surfaces for housings and housing covers and internal combustion engines comprising the same |
| CN105829782A (en) * | 2013-11-13 | 2016-08-03 | 爱信精机株式会社 | Internal combustion engine and cover member attachment structure for internal combustion engine |
-
2009
- 2009-11-19 CN CN2009201806611U patent/CN201582008U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103573464A (en) * | 2012-07-19 | 2014-02-12 | 通用汽车环球科技运作有限责任公司 | Multi-directional asymmetric surfaces for housings and housing covers and internal combustion engines comprising the same |
| CN103573464B (en) * | 2012-07-19 | 2017-06-06 | 通用汽车环球科技运作有限责任公司 | The multidirectional asymmetric surface of shell and jacket and explosive motor including the surface |
| CN105829782A (en) * | 2013-11-13 | 2016-08-03 | 爱信精机株式会社 | Internal combustion engine and cover member attachment structure for internal combustion engine |
| CN105829782B (en) * | 2013-11-13 | 2019-06-14 | 爱信精机株式会社 | The cover mounting structure of internal combustion engine and internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20131119 |