CN201152180Y - Air valve oil seal lip - Google Patents
Air valve oil seal lip Download PDFInfo
- Publication number
- CN201152180Y CN201152180Y CNU2008200176174U CN200820017617U CN201152180Y CN 201152180 Y CN201152180 Y CN 201152180Y CN U2008200176174 U CNU2008200176174 U CN U2008200176174U CN 200820017617 U CN200820017617 U CN 200820017617U CN 201152180 Y CN201152180 Y CN 201152180Y
- Authority
- CN
- China
- Prior art keywords
- lip
- oil seal
- main
- valve oil
- rubber body
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model discloses a sealing lip for an air valve oil seal, which is composed of a rubber body, a skeleton and a main lip. An air lip protruding the surface of the rubber body is arranged under the main lip, the inner diameter size of the air lip is more than and equal to that of the main lip, the gap position between the air lip and the skeleton is provided with a strengthening rib evenly distributed, and a spring is fixed on the rubber body of the outer side of the main lip. The sealing lip is characterized in that not only the oil seal can maintain certain seepage but the failure of the main lip caused by over-high air pressure in a combustion chamber can be avoided.
Description
Technical field
The utility model belongs to motor and uses the valve oil seal field, especially relates to a kind of seal lip of valve oil seal.
Background technique
Engine valve oil seal, the main effect that is play in motor is: oil controller, lubricant oil in the definite control cylinder body of saying so can penetrate into according to certain design Leckage between valve stem and the valve guide, play certain lubrication, avoid the dry friction between valve stem and the valve guide, and cause the damage of valve stem, prevent that again the Leckage of lubricant oil is excessive simultaneously, burn lubricated oil condition and cause, cause carbon distribution motor.At present, basically the structure that adopts in the design of engine valve oil seal is the structure of single main lip structure or main lip band multiple tracks groove, these two kinds of mode of structure can not prevent effectively that the pressure that produces because of the expanded by heating of gas in the firing chamber from surpassing the package power of valve oil seal master lip, and main lip is opened, cause the situation of oil leak.
Summary of the invention
The purpose of this utility model is to improve the deficiency of prior art and provides a kind of oil sealing that can guarantee to keep certain Leckage, can prevent the excessive seal lip that causes the valve oil seal of main lip inefficacy of firing chamber internal air pressure again.
The purpose of this utility model is achieved in that a kind of seal lip of valve oil seal, is made up of rubber body, skeleton and main lip, is characterized in being provided with below main lip the gas lip that protrudes the rubber body surface.
In order further to realize the purpose of this utility model, can be the internal diameter size of gas lip internal diameter size more than or equal to main lip.
In order further to realize the purpose of this utility model, can be the uniform stiffening rib that is provided with at the gap location of gas lip and skeleton.
In order further to realize the purpose of this utility model, can be on the rubber body of the main lip outside, to be fixed with spring.
Compared with the prior art the utility model has following distinguishing feature and good effect: the utility model adopts the root at oil sealing master lip, to the opposite direction of main lip, be designed to the gas lip, gas lip and valve stem appropriateness interference fit have effectively strengthened the adaptive capacity to the rising of the air pressure in the firing chamber; The uniform stiffening rib that is provided with at the gap location of gas lip and skeleton prevents gas lip excessive deformation, influences using effect; On the rubber body of the main lip outside, be fixed with spring, effectively avoided main lip low after producing deformation because of rebound elasticity, can not in time rapid restorable shortcoming, the increase of spring simultaneously can better improve the agreeableness at oil sealing master lip position, increases the validity of sealing.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is an another kind of structural representation of the present utility model.
Fig. 3 is another structural representation of the present utility model.
Embodiment
Embodiment 1, a kind of seal lip of valve oil seal, referring to Fig. 1, rubber body 1 sticks on the skeleton 2, and the top of rubber body 1 is provided with main lip 3, is provided with the gas lip 4 on protrusion rubber body 1 surface to the opposite direction of main lip 3 from the root of main lip 3, angle α between main lip 3 and the gas lip 4 is the obtuse angle, gas lip 4 internal diameter sizes are more than or equal to the internal diameter size of main lip 3, and gas lip 4 internal diameter sizes equal the internal diameter size of main lip 3 in the present embodiment, and this constitutes a kind of structure of the present utility model.
Claims (4)
1, a kind of seal lip of valve oil seal is made up of rubber body (1), skeleton (2) and main lip (3), it is characterized in that being provided with the gas lip (4) that protrudes rubber body (1) surface in main lip (3) below.
2, the seal lip of a kind of valve oil seal according to claim 1 is characterized in that the internal diameter size of gas lip (4) internal diameter size more than or equal to main lip (3).
3, the seal lip of a kind of valve oil seal according to claim 1 and 2, its feature is provided with uniform stiffening rib (5) the gap location of gas lip (4) and skeleton (2).
4, the seal lip of a kind of valve oil seal according to claim 1 is characterized in that being fixed with spring (6) on main lip (3) outside rubber body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200176174U CN201152180Y (en) | 2008-01-31 | 2008-01-31 | Air valve oil seal lip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200176174U CN201152180Y (en) | 2008-01-31 | 2008-01-31 | Air valve oil seal lip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201152180Y true CN201152180Y (en) | 2008-11-19 |
Family
ID=40127859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200176174U Expired - Lifetime CN201152180Y (en) | 2008-01-31 | 2008-01-31 | Air valve oil seal lip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201152180Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939168A (en) * | 2014-04-23 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Engine and valve oil seal thereof |
| CN104358599A (en) * | 2014-11-18 | 2015-02-18 | 烟台润蚨祥油封有限公司 | Low-friction air valve oil seal |
-
2008
- 2008-01-31 CN CNU2008200176174U patent/CN201152180Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939168A (en) * | 2014-04-23 | 2014-07-23 | 安徽江淮汽车股份有限公司 | Engine and valve oil seal thereof |
| CN104358599A (en) * | 2014-11-18 | 2015-02-18 | 烟台润蚨祥油封有限公司 | Low-friction air valve oil seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LAIYANG QUANRUIXIANG PLASTIC PRODUCTS CO., LTD. Free format text: FORMER OWNER: DU JIE Effective date: 20090918 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090918 Address after: No 162, Longmen West Road, Laiyang, Shandong, Yantai 265200, China Patentee after: Laiyang Quanruixiang Plastic Product Co., Ltd. Address before: No 162, Longmen West Road, Laiyang, Shandong, Yantai 265200, China Patentee before: Du Jie |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Shien Document name: Notification to Pay the Fees |
|
| ASS | Succession or assignment of patent right |
Owner name: YANTAI RUNFUXIANG OIL SEAL CO., LTD. Free format text: FORMER OWNER: LAIYANG QUANRUIXIANG PLASTIC PRODUCT CO., LTD. Effective date: 20140410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140410 Address after: 265200 Shandong city of Yantai province Laiyang city Longmen Road No. 587 Patentee after: Yantai Runfuxiang Oil Seal Co., Ltd. Address before: 265200 Shandong city of Yantai province Laiyang city Longmen Road No. 162 Patentee before: Laiyang Quanruixiang Plastic Product Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Wang Shien Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term |
Granted publication date: 20081119 |
|
| CX01 | Expiry of patent term |