CN108150303B - Sealing gasket for cylinder head cover of engine - Google Patents
Sealing gasket for cylinder head cover of engine Download PDFInfo
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- CN108150303B CN108150303B CN201711420836.7A CN201711420836A CN108150303B CN 108150303 B CN108150303 B CN 108150303B CN 201711420836 A CN201711420836 A CN 201711420836A CN 108150303 B CN108150303 B CN 108150303B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
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Abstract
The invention relates to a sealing gasket of an engine cylinder head cover, which comprises a sealing gasket body, wherein the sealing gasket body is in a ring shape with the length being larger than the width, the upper surface of the sealing gasket body is matched with the outline of the lower edge of the cylinder head cover, and the lower surface of the sealing gasket body is matched with the outlines of a front cover and the upper edge of a cylinder cover, and the sealing gasket is characterized in that: one side of the length direction of the sealing gasket body is provided with a protruding structure, the protruding structure corresponds to an oil injection pump arranged on a cylinder cover, a corner A of the left end of the protruding structure is provided with a first sealing structure, a corner B of the right end of the protruding structure is provided with a second sealing structure, a right part C in front of the sealing gasket body is provided with a third sealing structure, and a right part D in back of the sealing gasket body is provided with a fourth sealing structure. The invention can meet the sealing requirements of three joint surfaces of the engine and solve the problem of engine oil leakage under high temperature and vibration of the engine.
Description
Technical Field
The invention relates to an automobile engine, in particular to a sealing gasket of an engine cylinder head cover.
Background
The engine cylinder head cover sealing gasket is a rubber sealing element arranged between a cylinder head cover and a cylinder cover of an engine, the rubber sealing element plays a role of sealing engine oil through flexible rubber compression rebound, but along with the technical application of engine pressurization, direct injection and chain transmission, the cylinder head cover sealing gasket is enabled to no longer meet the sealing between two planes, but the sealing combined by three planes, and the requirement of the three plane sealing on the sealing gasket is higher.
In the application of the existing engine boosting, direct injection and chain transmission technologies, a plurality of sealing areas can occur, as shown in fig. 1, a (T-shaped) sealing area D, C formed by combining three surfaces of a cylinder cover 4, a front cover 3 and a cylinder cover 1, and a (T-shaped) sealing area A, B formed by combining three surfaces of an oil pump 5, a cylinder cover 2 and a cylinder cover 1 easily cause the problem of oil leakage of the sealing areas by adopting a traditional sealing structure along with the superposition of the sizes and assembly tolerances of three products and the improvement of engine vibration.
CN206668423U discloses a "cylinder head cover gasket" which is installed between a cylinder head and a cylinder head cover of a vehicle engine. The cylinder head cover gasket is of an annular structure and has a first surface and a second surface. The first surface is a surface that contacts the cylinder head, and the second surface is a surface that contacts the cylinder head cover. The first surface is provided with a plurality of sealing lines, an oil storage groove is formed between any two adjacent sealing lines in the plurality of sealing lines, lubricating oil in the cylinder cover and the cylinder cover is prevented from leaking through the plurality of sealing lines, and a small amount of lubricating oil is stored through the oil storage groove. The cylinder head cover sealing gasket is provided with two barriers for preventing lubricating oil leakage, and the sealing performance of the cylinder head cover sealing gasket is enhanced.
CN202228207U discloses a "sealed pad", be applied to the sealed of junction between engine cylinder head cover and the cylinder body sealed top of filling up is provided with two at least seal lips, and many seal lips are asymmetric to be arranged, and the seal lip sets up to the inside slope of cylinder head cover sealed "longmen" tip is equipped with the sealing rib. The cross section of the sealing gasket is in a U shape, and a line contact sealing rib is arranged at the bottom end of the U-shaped structure of the sealing gasket. And the periphery of the sealing gasket is provided with an anti-falling bulge. The sealing gasket is formed by vulcanizing ACM or AEM. The sealing gasket realizes excellent sealing performance between the cylinder head cover and the cylinder body, and avoids the leakage problem of the sealing connection part in the prior art.
Both of the above patents are undoubtedly an interesting attempt in the art.
Disclosure of Invention
The invention aims to provide a sealing gasket of a cylinder head cover of an engine, which can meet the sealing requirements of three joint surfaces of the engine and solve the problem of engine oil leakage of the engine under high temperature and vibration.
The invention relates to a sealing gasket of an engine cylinder head cover, which comprises a sealing gasket body, wherein the sealing gasket body is in a ring shape with the length being larger than the width, the upper surface of the sealing gasket body is matched with the outline of the lower edge of the cylinder head cover, and the lower surface of the sealing gasket body is matched with the outlines of a front cover and the upper edge of a cylinder cover, and the sealing gasket is characterized in that:
one side of the length direction of the sealing gasket body is provided with a protruding structure, the protruding structure corresponds to an oil injection pump arranged on a cylinder cover, a corner A of the left end of the protruding structure is provided with a first sealing structure, a corner B of the right end of the protruding structure is provided with a second sealing structure, a right part C in front of the sealing gasket body is provided with a third sealing structure, and a right part D in back of the sealing gasket body is provided with a fourth sealing structure.
Furthermore, the first sealing structure and the second sealing structure are the same and are respectively provided with a rectangular bending outline, four first sealing convex ribs which are parallel along the length direction are arranged in the rectangular bending outline, and five first grooves with equal spacing distance are formed between the four first sealing convex ribs and two long sides of the rectangular bending outline; one or more first transverse sealing ribs are respectively arranged in the five first grooves, and a first glue coating groove is formed between two first transverse sealing ribs or between one first transverse sealing rib and the wide edge of the rectangular bending profile in the same first groove.
The third sealing structure and the fourth sealing structure are the same and both have rectangular outlines, four second sealing convex ribs which are parallel along the length direction are arranged in the rectangular outlines, and five second grooves with equal spacing distance are formed by the four second sealing convex ribs and two long sides of the rectangular outlines; and one or more second transverse sealing ribs are respectively arranged in the five second grooves, and a second glue coating groove is formed between two second transverse sealing ribs or between one second transverse sealing rib and the wide edge of the rectangular bent profile in the same second groove.
Furthermore, raised first transverse sealing ribs are respectively arranged in the first groove, the third groove and the fifth groove at the left part in the rectangular bent profile; and the first, third and fifth grooves on the right part inside the rectangular bent profile are respectively provided with a first raised transverse sealing rib, and the second and fourth grooves are respectively provided with a first raised transverse sealing rib.
Furthermore, a plurality of rows of second transverse sealing ribs are respectively arranged in the first groove, the third groove and the fifth groove in the rectangular outline, and a plurality of rows of second transverse sealing ribs are respectively arranged in the second groove and the fourth groove in the rectangular outline; and the second transverse sealing ribs in the first, third and fifth second grooves and the second transverse sealing ribs in the second and fourth second grooves are arranged alternately.
Further, first horizontal sealing muscle and second horizontal sealing muscle are higher than the upper surface 0.3mm of sealing gasket body.
Further, the sealing pad body is made of carboxylic acid type HT-acrylate rubber.
The invention has the beneficial effects that:
(1) because the first, second, third and fourth sealing areas of the sealing gasket body are provided with the criss-cross grid type sealing structures, the plurality of first transverse sealing ribs and the plurality of second transverse sealing ribs protrude by 0.3mm, and a good sealing effect is achieved; generally, glue is coated in the first, second, third and fourth sealing areas to make up for sealing, and a glue coating groove with a plurality of square grooves is formed in a glue coating position matched with the sealing pad body to play a role in accommodating glue, so that the glue coating and sealing quality are greatly improved, and the problem of engine oil leakage under high temperature and vibration of an engine is effectively solved
(2) Because the sealing pad body is made of the carboxylic acid type HT-acrylate rubber material, the temperature resistance is high, the compression permanent performance is good, and the sealing quality of the product is effectively ensured.
Drawings
FIG. 1 is a schematic illustration of the assembly of an engine cylinder head gasket;
FIG. 2 is a schematic view of the structure of the cylinder head cover gasket of the present invention;
FIG. 3 is a schematic view of a first or second seal structure of the present invention;
fig. 4 is a schematic view of a third or fourth seal structure of the present invention.
In the figure: 1-a cylinder cover, 2-a sealing gasket body, 3-a front cover, 4-a cylinder cover and 5-an oil injection pump;
20-raised structure, 21-first seal structure, 22-second seal structure, 23-third seal structure, 24-fourth seal structure;
30-rectangular bent contour, 31-first sealing convex rib, 32-first groove, 33-first transverse sealing rib and 34-first glue coating groove;
40-rectangular outline, 41-second sealing convex rib, 42-second groove, 43-second transverse sealing rib and 44-second glue coating groove.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, 2, 3 and 4, the engine cylinder head cover gasket comprises a gasket body 2, which is in a ring shape with a length greater than a width, and the upper surface of the gasket body is matched with the profile of the lower edge of the cylinder head cover 1, and the lower surface of the gasket body is matched with the profiles of the front cover 3 and the upper edge of the cylinder head 4, and the gasket body has the prominent substantive characteristics that:
one side of the length direction of the sealing gasket body 2 is provided with a protruding structure 20, the protruding structure corresponds to an oil injection pump 5 arranged on the cylinder cover 4, a corner A of the left end of the protruding structure is provided with a first sealing structure 21, a corner B of the right end of the protruding structure is provided with a second sealing structure 22, a right part C in front of the sealing gasket body 2 is provided with a third sealing structure 23, and a right part D behind the sealing gasket body 2 is provided with a fourth sealing structure 24.
The first sealing structure 21 and the second sealing structure 22 are identical and both have a rectangular bent contour 30, four first sealing ribs 31 which are parallel and along the length direction are arranged in the rectangular bent contour, and five first grooves 32 with equal spacing distance are formed between the four first sealing ribs 31 and two long sides of the rectangular bent contour 30; one or more first transverse sealing ribs 33 are respectively arranged in the five first grooves 32, and a first glue coating groove 34 is formed between two first transverse sealing ribs 33 in the same first groove 32 or between one first transverse sealing rib 33 and the wide edge of the rectangular bent profile 30.
The third sealing structure 23 and the fourth sealing structure 24 are identical and both have a rectangular outline 40, four second sealing ribs 41 which are parallel and along the length direction are arranged in the rectangular outline, and five second grooves 42 with equal spacing distance are formed between the four second sealing ribs 41 and two long sides of the rectangular outline 40; one or more second transverse sealing ribs 43 are respectively arranged in the five second grooves 42, and a second glue coating groove 44 is formed between two second transverse sealing ribs 43 or between one second transverse sealing rib 43 and the wide side of the rectangular profile 40 in the same second groove 42.
Raised first transverse sealing ribs 33 are respectively arranged in the first, third and fifth grooves 32 at the left part in the rectangular bent profile 30; the first, third and fifth first grooves 32 on the right side of the rectangular bent profile 30 are respectively provided with a first transverse sealing rib 33, and the second and fourth first grooves 32 are respectively provided with a first transverse sealing rib 33.
A plurality of rows of second transverse sealing ribs 43 are respectively arranged in the first, third and fifth grooves 42 in the rectangular outline 40, and a plurality of rows of second transverse sealing ribs 43 are respectively arranged in the second and fourth grooves 42 in the rectangular outline 40; the second transverse sealing ribs 43 in the first, third and fifth second grooves 42 and the second transverse sealing ribs 43 in the second, fourth and second grooves 42 are arranged at intervals.
The first transverse sealing rib 33 and the second transverse sealing rib 43 are 0.3mm (millimeter) higher than the upper surface of the gasket body 2.
The sealing gasket body 2 is made of carboxylic acid type HT-acrylate rubber. The carboxylic acid type HT-acrylate rubber material has high temperature resistance and good compression permanent performance, and can effectively ensure the sealing quality of the product.
Claims (5)
1. The utility model provides an engine cylinder head cover sealing gasket, includes the sealing gasket body (2), this sealing gasket body is the annular that length is greater than the width, and the profile looks adaptation of following, following and preceding shroud (3) and cylinder cap (4) are gone up to the profile looks adaptation of following with cylinder head cover (1) above it, characterized by:
a protruding structure (20) is arranged on one side of the length direction of the sealing gasket body (2), the protruding structure corresponds to an oil injection pump (5) arranged on the cylinder cover (4), a first sealing structure (21) is arranged at a corner A of the left end of the protruding structure, a second sealing structure (22) is arranged at a corner B of the right end of the protruding structure, a third sealing structure (23) is arranged at the right part C of the front side of the sealing gasket body (2), and a fourth sealing structure (24) is arranged at the right part D of the rear side of the sealing gasket body (2);
the first sealing structure (21) and the second sealing structure (22) are identical and are respectively provided with a rectangular bending outline (30), four first sealing convex ribs (31) which are parallel along the length direction are arranged in the rectangular bending outline, and five first grooves (32) with equal interval distance are formed between the four first sealing convex ribs (31) and two long sides of the rectangular bending outline (30); one or more first transverse sealing ribs (33) are respectively arranged in the five first grooves (32), and a first glue coating groove (34) is formed between two first transverse sealing ribs (33) in the same first groove (32) or between one first transverse sealing rib (33) and the wide edge of the rectangular bent profile (30).
2. The engine cylinder head cover gasket of claim 1, wherein: the third sealing structure (23) and the fourth sealing structure (24) are identical and are respectively provided with a rectangular outline (40), four second sealing convex ribs (41) which are parallel along the length direction are arranged in the rectangular outline, and five second grooves (42) with equal spacing distance are formed between the four second sealing convex ribs (41) and two long sides of the rectangular outline (40); one or more second transverse sealing ribs (43) are respectively arranged in the five second grooves (42), and a second glue coating groove (44) is formed between two second transverse sealing ribs (43) in the same second groove (42) or between one second transverse sealing rib (43) and the wide side of the rectangular outline (40).
3. The engine cylinder head cover gasket according to claim 1 or 2, wherein: raised first transverse sealing ribs (33) are respectively arranged in the first, third and fifth grooves (32) at the left part in the rectangular bent profile (30); raised first transverse sealing ribs (33) are respectively arranged in the first, third and fifth grooves (32) at the right part in the rectangular bent profile (30); and raised first transverse sealing ribs (33) are also respectively arranged in the second and fourth first grooves (32).
4. The engine cylinder head cover gasket of claim 2, wherein: a plurality of rows of raised second transverse sealing ribs (43) are respectively arranged in the first, third and fifth second grooves (42) in the rectangular outline (40), and a plurality of rows of raised second transverse sealing ribs (43) are respectively arranged in the second and fourth second grooves (42) in the rectangular outline (40); and the second transverse sealing ribs (43) in the first, third and fifth second grooves (42) and the second transverse sealing ribs (43) in the second and fourth second grooves (42) are arranged at intervals.
5. The engine cylinder head cover gasket of claim 4, wherein: the first transverse sealing rib (33) and the second transverse sealing rib (43) are higher than the upper surface of the sealing gasket body (2) by 0.3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711420836.7A CN108150303B (en) | 2017-12-25 | 2017-12-25 | Sealing gasket for cylinder head cover of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711420836.7A CN108150303B (en) | 2017-12-25 | 2017-12-25 | Sealing gasket for cylinder head cover of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108150303A CN108150303A (en) | 2018-06-12 |
| CN108150303B true CN108150303B (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711420836.7A Active CN108150303B (en) | 2017-12-25 | 2017-12-25 | Sealing gasket for cylinder head cover of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150303B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264941A (en) * | 2004-03-17 | 2005-09-29 | Elringklinger Ag | Cylinder head gasket |
| CN201496167U (en) * | 2009-08-19 | 2010-06-02 | 青岛开世密封工业有限公司 | Seal gasket of engine cylinder head |
| CN202228207U (en) * | 2011-08-22 | 2012-05-23 | 安徽中鼎密封件股份有限公司 | Sealing gasket |
| CN206668423U (en) * | 2017-02-23 | 2017-11-24 | 宁波吉利罗佑发动机零部件有限公司 | A kind of cylinder head cover sealing gasket |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2768211B1 (en) * | 1997-09-09 | 1999-10-22 | Curty Payen Sa | STATIC SEAL |
| JP2001032940A (en) * | 1999-07-19 | 2001-02-06 | Taiho Kogyo Co Ltd | Cylinder head gasket |
| CN102392754A (en) * | 2011-11-30 | 2012-03-28 | 重庆长安汽车股份有限公司 | Sealing gasket for cylinder head covers for engines |
| US8752841B2 (en) * | 2012-05-18 | 2014-06-17 | Federal-Mogul Corporation | Gasket with a compression limiter |
| CN203570455U (en) * | 2013-12-03 | 2014-04-30 | 东风汽车公司 | Cylinder head cover sealing strip |
| CN105089848B (en) * | 2015-09-17 | 2018-06-29 | 奇瑞汽车股份有限公司 | A kind of engine cylinder cap pad |
-
2017
- 2017-12-25 CN CN201711420836.7A patent/CN108150303B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005264941A (en) * | 2004-03-17 | 2005-09-29 | Elringklinger Ag | Cylinder head gasket |
| CN201496167U (en) * | 2009-08-19 | 2010-06-02 | 青岛开世密封工业有限公司 | Seal gasket of engine cylinder head |
| CN202228207U (en) * | 2011-08-22 | 2012-05-23 | 安徽中鼎密封件股份有限公司 | Sealing gasket |
| CN206668423U (en) * | 2017-02-23 | 2017-11-24 | 宁波吉利罗佑发动机零部件有限公司 | A kind of cylinder head cover sealing gasket |
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| Publication number | Publication date |
|---|---|
| CN108150303A (en) | 2018-06-12 |
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