CN107355311A - Cylinder head gasket - Google Patents
Cylinder head gasket Download PDFInfo
- Publication number
- CN107355311A CN107355311A CN201710797653.0A CN201710797653A CN107355311A CN 107355311 A CN107355311 A CN 107355311A CN 201710797653 A CN201710797653 A CN 201710797653A CN 107355311 A CN107355311 A CN 107355311A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- head gasket
- cylinder head
- cylinders
- thickness
- 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
Links
Classifications
-
- 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
- F02F11/002—Arrangements of sealings in combustion engines involving cylinder heads
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a kind of cylinder head gasket, including cylinder choma portion, the spacer thickness at the middle part in the cylinder choma portion between two cylinders are tapered to the both sides in cylinder choma portion.The cylinder head gasket deforms big, raising sealing system reliability, reduction sealing system fault rate between can making up two cylinders.
Description
Technical field
The present invention relates to cylinder head field, more particularly to a kind of cylinder head gasket.
Background technology
The engine cylinder cap pad of field of internal combustion engine, under the high pressure, high-temperature when engine works in cylinder, cylinder
Lid or cylinder block are deformed, and the deflection at each position of cylinder mouth is different, and larger, cylinder head gasket is deformed between usual two cylinder
Poor sealing rate is high, easily rushes cylinder pad, turns one's coat, and causes engine performance the catastrophe failure such as decline, can not work.As shown in Figure 1
For a kind of cylinder head gasket of binding structure, in order to make up, deformation is big between two cylinders, generally increases a piece of reinforcement between two cylinders
Plate (referring to Fig. 2 and Fig. 3), it is illustrated in figure 4 a kind of cylinder head gasket of the multilayer spring stainless steel of hatch frame, this kind of pad
It is the trend of cylinder head gasket development.
As requirement of each side to engine properties improves, thermic load of the engine among work certainly will be increased
With explosion pressure, higher challenge so is had also been proposed to the reliability of cylinder head gasket sealing system.Original binding structure
For cylinder head gasket due to stiffening plate marginal existence abrupt changes in thickness, face pressure is often discontinuous, poor sealing hidden danger, and bound edge be present
Easy fatigue cracking, is adversely affected to sealing system, and the cylinder head gasket of the multilayer spring stainless steel of hatch frame, because
Favor is enjoyed with preferable rebound characteristics, but because structure limits, is difficult to arrange stiffening plate between two cylinders.
The information for being disclosed in the background section is merely intended to understanding of the increase to the general background of the present invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or implying the information structure in any form.
The content of the invention
It is an object of the invention to provide a kind of cylinder head gasket, and deformation is big between can making up two cylinders, improves sealing system
System reliability, reduces sealing system fault rate.
To achieve the above object, the invention provides a kind of cylinder head gasket, including cylinder choma portion, between two cylinders
The spacer thickness at the middle part in cylinder choma portion is tapered to the both sides in cylinder choma portion.
Compared with prior art, the present invention has the advantages that：The cylinder choma portion of cylinder head gasket is designed as thickness
Grading structure is spent, the spacer thickness at the middle part in the cylinder choma portion between two cylinders is big, and remaining position thickness tapers into, can be with
Improve sealing system reliability.
Brief description of the drawings
Fig. 1 is a kind of schematic cross-sectional view of existing cylinder head gasket；
Fig. 2 is the partial schematic diagram of the cylinder head gasket in Fig. 1；
Fig. 3 is the schematic diagram of the reinforcing plate in the cylinder head gasket in Fig. 1；
Fig. 4 is the schematic cross-sectional view of existing another cylinder head gasket；
Fig. 5 is the partial schematic diagram according to the cylinder head gasket of the present invention；
Fig. 6 is along the sectional view in B-B directions in Fig. 5；
Fig. 7 is along the sectional view in A-A directions in Fig. 5..
Embodiment
Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail, it is to be understood that the guarantor of the present invention
Shield scope is not limited by embodiment.
Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members
Part or other parts.
As shown in Figures 5 to 7, according to a kind of cylinder head gasket of the specific embodiment of the invention, including cylinder choma portion 1,
The spacer thickness at the middle part 11 in the cylinder choma portion 1 between two cylinders is tapered to the both sides 12 in cylinder choma portion 1.I.e. cylinder-top gasket
The cylinder choma portion of piece is designed as gradient thickness structure, and thickness is big between two cylinders, and remaining position thickness tapers into, for adjusting gas
The thickness difference at gland shim envelope gas position, abrupt changes in thickness situation is not present in 360 ° of directions in cylinder choma portion.So between two cylinders
Big place is deformed, cylinder head gasket can play certain compensating action, improve the reliability of sealing system.Such a structure
Cylinder choma is not only suitable for the cylinder head gasket of binding structure, is also applied for the cylinder-top gasket of the multilayer spring stainless steel of hatch frame
Piece.
Certainly, the thickness tapered configuration in above-mentioned cylinder choma portion 1 can also be utilized in other layer of similar position.
To sum up, the cylinder head gasket of the present embodiment, the cylinder choma portion 1 of cylinder head gasket is designed as gradient thickness structure,
The spacer thickness at the middle part 11 in the cylinder choma portion 1 between two cylinders is big, and remaining position thickness tapers into, and can improve sealing
System reliability.
The description of the foregoing specific illustrative embodiment to the present invention is to illustrate and the purpose of illustration.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can be much changed
And change.The purpose of selecting and describing the exemplary embodiment is that explain that the certain principles of the present invention and its reality should
With so that those skilled in the art can realize and utilize the present invention a variety of exemplaries and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (1)
1. a kind of cylinder head gasket, including cylinder choma portion, it is characterised in that the pad at the middle part in the cylinder choma portion between two cylinders
Piece thickness is tapered to the both sides in the cylinder choma portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710797653.0A CN107355311A (en) | 2017-09-06 | 2017-09-06 | Cylinder head gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710797653.0A CN107355311A (en) | 2017-09-06 | 2017-09-06 | Cylinder head gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107355311A true CN107355311A (en) | 2017-11-17 |
Family
ID=60291317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710797653.0A Pending CN107355311A (en) | 2017-09-06 | 2017-09-06 | Cylinder head gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107355311A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61232369A (en) * | 1985-04-05 | 1986-10-16 | Honda Motor Co Ltd | Cylinder head gasket |
| CN202659373U (en) * | 2012-07-19 | 2013-01-09 | 安徽江淮汽车股份有限公司 | Cylinder head gasket of gasoline engine |
| CN103216357A (en) * | 2013-04-16 | 2013-07-24 | 中国兵器工业集团第七0研究所 | Annular varied section cylinder head gasket for single cylinder of engine |
| CN103807050A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Cylinder head gasket for engine |
| CN204419394U (en) * | 2015-02-03 | 2015-06-24 | 烟台石川密封垫板有限公司 | A kind of cylinder gasket comprising cylinder choma structure |
| CN106194492A (en) * | 2016-08-31 | 2016-12-07 | 江苏四达动力机械集团有限公司 | Compound seal cylinder head gasket structure |
-
2017
- 2017-09-06 CN CN201710797653.0A patent/CN107355311A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61232369A (en) * | 1985-04-05 | 1986-10-16 | Honda Motor Co Ltd | Cylinder head gasket |
| CN202659373U (en) * | 2012-07-19 | 2013-01-09 | 安徽江淮汽车股份有限公司 | Cylinder head gasket of gasoline engine |
| CN103807050A (en) * | 2012-11-07 | 2014-05-21 | 广西玉柴机器股份有限公司 | Cylinder head gasket for engine |
| CN103216357A (en) * | 2013-04-16 | 2013-07-24 | 中国兵器工业集团第七0研究所 | Annular varied section cylinder head gasket for single cylinder of engine |
| CN204419394U (en) * | 2015-02-03 | 2015-06-24 | 烟台石川密封垫板有限公司 | A kind of cylinder gasket comprising cylinder choma structure |
| CN106194492A (en) * | 2016-08-31 | 2016-12-07 | 江苏四达动力机械集团有限公司 | Compound seal cylinder head gasket structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171117 |
|
| RJ01 | Rejection of invention patent application after publication |