CN101892923A - Sealing gasket for cylinder head cover - Google Patents
Sealing gasket for cylinder head cover Download PDFInfo
- Publication number
- CN101892923A CN101892923A CN 201010242157 CN201010242157A CN101892923A CN 101892923 A CN101892923 A CN 101892923A CN 201010242157 CN201010242157 CN 201010242157 CN 201010242157 A CN201010242157 A CN 201010242157A CN 101892923 A CN101892923 A CN 101892923A
- Authority
- CN
- China
- Prior art keywords
- sealing gasket
- cylinder head
- sealing
- head cover
- cylinder
- 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.)
- Pending
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- 238000007789 sealing Methods 0.000 title claims abstract description 87
- 239000011324 bead Substances 0.000 claims description 10
- 210000003205 muscle Anatomy 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- KUDUQBURMYMBIJ-UHFFFAOYSA-N 2-prop-2-enoyloxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC(=O)C=C KUDUQBURMYMBIJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- 239000010721 machine oil Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Gasket Seals (AREA)
Abstract
The invention provides a sealing gasket of a cylinder head cover. The cross section of the sealing gasket is in a T shape, at least two mutually parallel enclosed sealing convex ribs are arranged along the length direction of the sealing gasket and on the binding face of the upper part of the sealing gasket and a cylinder head, three parallel oil storage tanks are arranged at the two sides and between the two sides of the sealing convex ribs, so that the compressibility of the sealing gasket is ensured, the oil flows into the oil storage tanks, and the oil can not leak out from a cylinder cover and the cylinder head. A group of vertical long-arc strip-type bosses are arranged at the two sides of the waist-shaped part of the cross section of the sealing gasket and are in interference fit with the sealing groove of the cylinder cover, thus when the sealing gasket is preassembled, the sealing gasket can be fixed in the groove to improve the sealing reliability. The sealing gasket of the cylinder head cover can ensure reliable sealing between the cylinder head cover and the cylinder head which are arranged on a high-performance supercharger engine, thereby improving the service life of the product, simultaneously being favorable for assembly and improving the efficiency.
Description
Technical field
The invention belongs to the technology of gasoline engine field, be specifically related to the engine cylinder cover hood seal gasket that seals between a kind of hyperpneustic cylinder head cover and cylinder cap.
Background technique
At present, the requirement to motor on the automobile is more and more higher, and wherein seal aspect plays important effect, and sealing had badly both influenced engine performance, increases oil consumption and also influence outward appearance, does not satisfy environmental requirement, has reduced satisfaction of customers virtually.
Existing engine cylinder housing generally adopts the design of T type cross section structure, substantially can satisfy general seal request, but just be difficult to satisfy seal request for sealing gasket design with this cross section of high performance supercharged engine (cylinder cover oil pressure, the raising of oil temperature).
Fig. 1 is existing motor car engine cylinder hood pad structure, is mainly made by the acrylate rubber material, is T type Cross section Design.Fig. 2 is the erection drawing of sealing pad.The sealed muscle 41 of three sealings that are parallel to each other is set on this cylinder head cover sealing gasket 4 and the cylinder cap junction plane, and sealing muscle 41 is a trigonometric form, adopts linear sealing and cylinder cap surface of contact less, in case the defective leakage that will cause machine oil of the processing dimension of muscle; There is semi-circular positive stop lug boss 42 at the middle part of the sealing pad left and right sides, with the seal groove of cylinder cover 1 certain interference fit is arranged, when but this sealing structure pad installs to cylinder cover 1, when being press fit into cylinder cap 3 by bolt torsion again, the sealing pad is easy to adorn askew generation torsional deformation, thereby machine oil is revealed from cylinder cap.In addition, the cross section squarely of sealing pad underpart 43, when sealing gasket was compressed, the underpart did not have enough extendable rooms at cylinder cover bottom land, thereby is easy to be caused leakage of oil by pressure break.Low temperature resistant and the long-term compression set of the acrylate rubber of Cai Yonging is less better in addition, thereby makes the life-span of sealing gasket reduce the sealing reliability variation.
Summary of the invention
The objective of the invention is to the deficiency that exists in the available engine cylinder head cover sealing gasket cross section structure, provide a kind of engine cylinder cover hood seal gasket of special cross-section structure, to satisfy the reliable sealing between high performance supercharged engine cylinder cover and the cylinder cap.
Technological scheme of the present invention is as follows:
It is a pair of aliform limit is stretched out in structural type from the T-shape bottom to both sides that cylinder head cover sealing gasket of the present invention adopts top.On sealing gasket and cylinder cap junction plane, be provided with the seal bead of at least two sealings that are parallel to each other along its length, and in the seal bead both sides and be formed with parallel oil storage tank between them.This structure can make sealing gasket and cylinder cap area of contact big, guarantees certain compressibility, overcomes the excessive leakage of oil that causes of planeness between cylinder cap and the cylinder cover.Three oil storage tanks form three close encapsulation rings (similar endless track), make the interior a certain parts of lubricating oil of cylinder cap be stored in the groove, prevent to be seeped into the outside.In addition, it is best that seal bead adopts semi-circular sealed muscle, can play better sealing effect.
The both sides, waist shape position in described sealing gasket cross section vertically are provided with long arc bar shaped type boss, and long arc bar shaped type boss is to arrange at interval on the sealing gasket length direction.Interference fit between the seal groove of assurance pad and cylinder cover is beneficial to assembling, plays the spacing effect of installing, and guarantees that the cylinder hood pad is press-fiting the Shi Buhui distortion, has increased the reliability of sealing.
A pair of aliform limit is stretched out to both sides in " T " lower end, cross section of described cylinder head cover sealing gasket, sealing gasket is fixed in the seal groove, make sealing gasket when prepackage the time installs in the seal groove, can be fixed in the groove, thus sealing gasket torsional deformation influence sealing when preventing to press-fit.
Semi-circular structure is adopted in described cylinder head cover sealing gasket underpart, has certain clearance with cylinder cover bottom land end in contact, and this rubber also has enough spaces when being compressed, thereby improves the reliability of sealing.
Good effect of the present invention is:
Adopt parallel sealing muscle and oil storage tank not only to guarantee the compressibility of sealing gasket but also machine oil is flow to guarantee in the oil storage tank that machine oil does not ooze out from cylinder cover and cylinder cap.
Adopt T-shape and combined cross section, aliform limit to play the effect while of noise reduction damping, the aliform limit of lower end can be fixed in the groove when making the sealing gasket prepackage, has improved the reliability of sealing.
Thereby when adopting semi-circular structure and cylinder cover bottom land Spielpassung to prevent to compress, the underpart improved the reliability of sealing by pressure break.
Adopting shore hardness is the ethylene-acrylate rubber material of 60 high temperature resistant and low compression set, has guaranteed the sealing of high-performance supercharged engine from material.
Therefore, this cylinder head cover sealing gasket can guarantee the reliable sealing between high-performance supercharged engine casing top half housing and the cylinder cap, improves the working life of product, is beneficial to assembling simultaneously, raises the efficiency.
Description of drawings
The existing cylinder head cover sealing gasket of Fig. 1 T type sectional view
The existing cylinder head cover sealing gasket of Fig. 2 erection drawing
The sectional view of Fig. 3 cylinder head cover sealing gasket of the present invention
Fig. 4 cylinder head cover sealing gasket of the present invention erection drawing
Among the figure: sealing gasket, 21-seal bead, 22-oil storage tank, 23-long arc stripe shape boss, 24-aliform limit, the semi-circular structure of 25-before the sealing gasket after 1-cylinder cover, 2-improve, 3-cylinder cap, 4-improve
Embodiment
As shown in Figure 3, the top, cross section of the sealing gasket 1 after the present invention improves is T-shape, the semi-circular seal bead 21 and three parallel oil storage tanks 22 of two sealings that are parallel to each other are set on the junction plane of sealing gasket top and cylinder cap, and oil storage tank 22 is between seal bead 21 both sides and them.Both sides, waist shape position in the sealing gasket cross section vertically are provided with long arc stripe shape boss 23, and it is spaced apart on the sealing gasket length direction.Design the aliform limit 24 that stretch out on subtend both sides in the middle and lower part in " T " cross section, and the sealing gasket underpart is designed to semi-circular structure 25.
Sealing pad employing shore hardness is 60 the high temperature resistant and ethylene-acrylate rubber material with low compression set, has improved the working life and the sealability of sealing gasket.
The state of sealing pad assembling as shown in Figure 4, plane forms sealing by two seal bead 21 and three oil storage tanks 22 with cylinder cap 3 on it, its lower end is assemblied in the seal groove of cylinder cowl 1, by semi-circular structure 25 realizations of long arc stripe shape boss 23, aliform limit 24 and underpart firm assembling and sealing reliably.
Claims (5)
1. cylinder head cover sealing gasket, the sectional shape of described sealing gasket is a T-shape; It is characterized in that:
Be provided with the seal bead of at least two sealings that are parallel to each other at the junction plane upper edge of described sealing gasket top and cylinder cap sealing gasket length direction, and the seal bead both sides and between be formed with parallel oil storage tank;
The both sides, waist shape position in described sealing gasket cross section are provided with vertical long arc bar shaped type boss, and long arc bar shaped type boss is to arrange at interval on the sealing gasket length direction, with the seal groove interference fit of cylinder cover.
2. cylinder head cover sealing gasket according to claim 1 is characterized in that: a pair of aliform limit is stretched out to both sides in the bottom of described sealing gasket, and sealing gasket is fixed in the seal groove.
3. cylinder head cover sealing gasket according to claim 1 is characterized in that: described seal bead adopts semi-circular sealed muscle.
4. cylinder head cover sealing gasket according to claim 1 is characterized in that: semi-circular structure is adopted in cross section, described sealing gasket underpart, with cylinder cover bottom land end in contact.
5. cylinder head cover sealing gasket according to claim 1 is characterized in that: it is that 60 ethylene-acrylate rubber material is made that described sealing gasket adopts shore hardness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010242157 CN101892923A (en) | 2010-07-30 | 2010-07-30 | Sealing gasket for cylinder head cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010242157 CN101892923A (en) | 2010-07-30 | 2010-07-30 | Sealing gasket for cylinder head cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101892923A true CN101892923A (en) | 2010-11-24 |
Family
ID=43102234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010242157 Pending CN101892923A (en) | 2010-07-30 | 2010-07-30 | Sealing gasket for cylinder head cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101892923A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649852A (en) * | 2012-03-26 | 2012-08-29 | 安徽中鼎橡塑制品有限公司 | Sealing ring and manufacturing method thereof |
| CN103213593A (en) * | 2012-01-18 | 2013-07-24 | 南车青岛四方机车车辆股份有限公司 | Inter-city train air conditioning unit installing structure |
| CN104074627A (en) * | 2014-07-14 | 2014-10-01 | 宁波浙成科技咨询有限公司 | Sealing gasket of engine cylinder head cover |
| CN106286834A (en) * | 2015-05-29 | 2017-01-04 | 青岛海尔洗衣机有限公司 | Flange seal mounting structure at the bottom of a kind of washing machine inner tub |
| CN107002876A (en) * | 2014-12-02 | 2017-08-01 | 卡尔·弗罗伊登伯格公司 | Seal including continuous variable shape and lateral maintaining item |
| CN111637227A (en) * | 2020-07-01 | 2020-09-08 | 杭州铁城信息科技有限公司 | Electric shell sealing structure for vehicle |
| CN114382891A (en) * | 2020-10-21 | 2022-04-22 | 无锡恩福油封有限公司 | Sealing device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19736467A1 (en) * | 1997-08-21 | 1999-03-04 | Bruss Dichtungstechnik | Static seal comprising elastomer strip |
| CN201301759Y (en) * | 2008-12-04 | 2009-09-02 | 奇瑞汽车股份有限公司 | Engine cylinder cover seal gasket |
| CN201439817U (en) * | 2009-07-29 | 2010-04-21 | 上海通用汽车有限公司 | sealing gasket |
| CN201496539U (en) * | 2009-08-18 | 2010-06-02 | 青岛开世密封工业有限公司 | Cylinder head cover gasket |
| CN201771626U (en) * | 2010-07-30 | 2011-03-23 | 重庆长安汽车股份有限公司 | Sealing gasket for cylinder head cover of engine |
-
2010
- 2010-07-30 CN CN 201010242157 patent/CN101892923A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19736467A1 (en) * | 1997-08-21 | 1999-03-04 | Bruss Dichtungstechnik | Static seal comprising elastomer strip |
| CN201301759Y (en) * | 2008-12-04 | 2009-09-02 | 奇瑞汽车股份有限公司 | Engine cylinder cover seal gasket |
| CN201439817U (en) * | 2009-07-29 | 2010-04-21 | 上海通用汽车有限公司 | sealing gasket |
| CN201496539U (en) * | 2009-08-18 | 2010-06-02 | 青岛开世密封工业有限公司 | Cylinder head cover gasket |
| CN201771626U (en) * | 2010-07-30 | 2011-03-23 | 重庆长安汽车股份有限公司 | Sealing gasket for cylinder head cover of engine |
Non-Patent Citations (1)
| Title |
|---|
| 《橡胶参考资料》 19890831 D.Hubsch 乙烯-丙烯酸酯橡胶-一种廉价的耐高温密封材料 , 第08期 2 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213593A (en) * | 2012-01-18 | 2013-07-24 | 南车青岛四方机车车辆股份有限公司 | Inter-city train air conditioning unit installing structure |
| CN103213593B (en) * | 2012-01-18 | 2015-11-25 | 南车青岛四方机车车辆股份有限公司 | Inter-city train air-conditioner set mounting structure |
| CN102649852A (en) * | 2012-03-26 | 2012-08-29 | 安徽中鼎橡塑制品有限公司 | Sealing ring and manufacturing method thereof |
| CN104074627A (en) * | 2014-07-14 | 2014-10-01 | 宁波浙成科技咨询有限公司 | Sealing gasket of engine cylinder head cover |
| CN107002876A (en) * | 2014-12-02 | 2017-08-01 | 卡尔·弗罗伊登伯格公司 | Seal including continuous variable shape and lateral maintaining item |
| US10295061B2 (en) | 2014-12-02 | 2019-05-21 | Carl Freudenberg Kg | Seal comprising a continuously variable shape and lateral retaining strips |
| CN107002876B (en) * | 2014-12-02 | 2019-11-05 | 卡尔·弗罗伊登伯格公司 | Sealing element including continuous variable shape and lateral maintaining item |
| CN106286834A (en) * | 2015-05-29 | 2017-01-04 | 青岛海尔洗衣机有限公司 | Flange seal mounting structure at the bottom of a kind of washing machine inner tub |
| CN106286834B (en) * | 2015-05-29 | 2019-10-01 | 青岛海尔洗衣机有限公司 | A kind of washing machine inner tub bottom flange seal mounting structure |
| CN111637227A (en) * | 2020-07-01 | 2020-09-08 | 杭州铁城信息科技有限公司 | Electric shell sealing structure for vehicle |
| CN114382891A (en) * | 2020-10-21 | 2022-04-22 | 无锡恩福油封有限公司 | Sealing device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101124 |