CN106224120A - The sealing structure of valve chamber cover - Google Patents
The sealing structure of valve chamber cover Download PDFInfo
- Publication number
- CN106224120A CN106224120A CN201610821377.2A CN201610821377A CN106224120A CN 106224120 A CN106224120 A CN 106224120A CN 201610821377 A CN201610821377 A CN 201610821377A CN 106224120 A CN106224120 A CN 106224120A
- Authority
- CN
- China
- Prior art keywords
- valve chamber
- chamber cover
- cylinder head
- camshaft
- cover
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
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
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0065—Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
The invention discloses the sealing structure of a kind of valve chamber cover that the valve chamber cover that faying face is arc can be sealed with connection member, including valve chamber cover and cylinder head, it is positioned at valve chamber cover and the camshaft-bearing cap of chamber that cylinder head surrounds protrudes out to outside chamber, valve chamber cover and cylinder head, camshaft-bearing cap faying face at be provided with seal gasket, on valve cover lid, the groove depth of seal groove for accommodating seal gasket is different.Valve chamber cover protrudes out to for this wheel bearing lid and structure outside chamber that cylinder head surrounds, valve chamber cover is not plane with the faying face of camshaft-bearing cap, valve chamber cover is designed to different groove depths from the seal groove at the faying face of camshaft-bearing cap, ensure that the thrust of seal gasket is essentially identical, thus reach good sealing effectiveness.
Description
Technical field
The present invention relates to automotive engine applications, be specifically related to the sealing structure of a kind of valve chamber cover.
Background technology
The upper surface of the cylinder head of automobile engine is equipped with valve actuating mechanism, spark plug etc., and these mechanisms are by valve chamber cover
Forming a space closed with engine cylinder cap, this just requires valve chamber cover sealed groove and the structure of pad and shape
Want no-float just can make good seal between valve chamber cover and cylinder head.
Between gasoline engine valve chamber cover and cylinder head, many employing rubber sheet gaskets seal at present, rubber sheet gasket and valve cover
Lid molding respectively, then rubber sheet gasket is loaded inside the corresponding groove of valve chamber cover, then by installing bolt cavaera
Cover cap and cylinder cap connect, and form a space closed, and for the structure of flat seal, sealing effectiveness is ideal, seldom produces
Raw leakage phenomenon.But there are some electromotors can not assort whole due to self structure and layout, valve chamber cover
In the parts such as mechanism and camshaft-bearing cap are completely contained in, i.e. sealing surface is not plane, valve chamber cover and camshaft bearing
Lid forms a space sealed together with cylinder head, and valve cover covers the screwing force of the relative rubber sheet gasket of bolt and is distributed not
Uniformly, rubber sheet gasket is different by thrust.For this structure, if valve chamber cover and rubber sheet gasket and camshaft bearing
Between lid if poor sealing, after electromotor runs a period of time, the phenomenon of valve cover local permeability often occurs.
Summary of the invention
The invention discloses a kind of cavaera that the valve chamber cover that faying face is arc can be sealed with connection member
The sealing structure of cover cap.
To achieve these goals, the technical solution used in the present invention is: the sealing structure of a kind of valve chamber cover, including
Valve chamber cover and cylinder head, be positioned at valve chamber cover and the camshaft-bearing cap of chamber that cylinder head surrounds protrudes out to chamber
Outward, valve chamber cover and cylinder head, camshaft-bearing cap faying face at be provided with seal gasket, valve cover lid is used for holding
The groove depth of seal groove of seal gasket received is different.
Valve chamber cover protrudes out to for this wheel bearing lid and structure outside chamber that cylinder head surrounds, cavaera
Cover cap is not plane with the faying face of camshaft-bearing cap, by the sealing at the valve chamber cover faying face with camshaft-bearing cap
Groove is designed to different groove depths, it is ensured that the thrust of seal gasket is essentially identical, thus reaches good sealing effectiveness.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention；
Fig. 2 is the sectional view of seal groove.
Detailed description of the invention
In conjunction with Fig. 1, shown in 2, the sealing structure of a kind of valve chamber cover, including valve chamber cover 10 and cylinder head 20, position
Camshaft-bearing cap 30 in the chamber that valve chamber cover 10 and cylinder head 20 surround protrudes out to outside chamber, valve chamber cover 10
With cylinder head 20, camshaft-bearing cap 30 faying face at be provided with seal gasket 40, valve chamber cover 10 is used for accommodate close
The groove depth of the seal groove 11 of potting pad 40 is different.Valve chamber cover 10 and cylinder head 20 are protruded out to for this wheel bearing lid 30
The structure outside chamber surrounded, valve chamber cover 10 is not plane with the faying face of camshaft-bearing cap 30, for faying face
The planform at place and the distribution situation of bolt 50 thereof, seal at the valve chamber cover 10 faying face with camshaft-bearing cap 30
The thrust of rubber cushion 40 is analyzed calculating, by the seal groove 11 at the valve chamber cover 10 faying face with camshaft-bearing cap 30
It is designed to different groove depths, it is ensured that the thrust of seal gasket 40 is essentially identical, thus reaches good sealing effectiveness.
Owing to valve chamber cover 10 and cylinder head 20 junction are planes, the thrust basic that seal gasket 40 is subject to
Causing, but it is not plane that valve chamber cover 10 obtains junction with camshaft-bearing cap 30, the thrust that seal gasket 40 is subject to is each
Differ, in order to ensure that plane domain is identical with the thrust of arc area seal gasket 40, valve chamber cover 10 and cylinder head
The groove depth of the plane domain seal groove 11 of 20 junctions is identical, the end of valve chamber cover 10 and camshaft-bearing cap 30 junction
The groove depth of arc area seal groove 11 different.
Preferably, the groove depth of seal groove 11 is along the direction at corner to valve chamber cover 10 top of valve chamber cover 10
Gradually deepen.The corner thrust distribution of arc area is smaller, thus the depth ratio of the seal groove 11 in this region other
Region will be shallow, increasing from corner to the top thrust of valve chamber cover 10, so the degree of depth of seal groove 11 is gradually
Deepen.
The thrust at arc area top is identical with the thrust of plane domain, the seal groove 11 at valve chamber cover 10 top
Groove depth identical with the groove depth of valve chamber cover 10 and the plane domain seal groove 11 of cylinder head 20 junction.
It is emphasized that rounding off between the seal groove 11 that groove depth is different, otherwise it is possible that local pressure mistake
Even seal gasket 40 is damaged by pressure greatly.
Further, valve chamber cover 10 and cylinder head 20 are provided with correspondence screwed hole, bolt 50 is through valve
Valve chamber cover 10, cylinder head 20, camshaft-bearing cap 30 are sealed by the screwed hole on room cover cap 10 and cylinder head 20.
In order to the thrust making each faying face is uniform, the length direction of screwed hole is perpendicular to valve chamber cover 10 and cylinder head
20, the faying face of camshaft-bearing cap 30.
Claims (7)
1. a sealing structure for valve chamber cover, including valve chamber cover (10) and cylinder head (20), is positioned at valve chamber cover
(10) camshaft-bearing cap (30) and in the chamber that surrounds of cylinder head (20) protrudes out to outside chamber, it is characterised in that: cavaera
Cover cap (10) and cylinder head (20), camshaft-bearing cap (30) faying face at be provided with seal gasket (40), valve chamber cover
(10) groove depth being used for accommodating the seal groove (11) of seal gasket (40) on is different.
The sealing structure of valve chamber cover the most according to claim 1, it is characterised in that: valve chamber cover (10) and cylinder
The groove depth of the plane domain seal groove (11) of lid (20) junction is identical, the end of valve chamber cover (10) and camshaft-bearing cap
(30) groove depth of the arc area seal groove (11) of junction is different.
The sealing structure of valve chamber cover the most according to claim 2, it is characterised in that: the groove depth of seal groove (11) along
The corner of valve chamber cover (10) gradually deepens to the direction at valve chamber cover (10) top.
The sealing structure of valve chamber cover the most according to claim 3, it is characterised in that: valve chamber cover (10) top
The groove depth of seal groove (11) and valve chamber cover (10) and the groove depth of the plane domain seal groove (11) of cylinder head (20) junction
Identical.
The sealing structure of valve chamber cover the most according to claim 4, it is characterised in that: the seal groove (11) that groove depth is different
Between rounding off.
The sealing structure of valve chamber cover the most according to claim 5, it is characterised in that: valve chamber cover (10) and cylinder
Be provided with on lid (20) correspondence screwed hole, bolt (50) is through the screwed hole in valve chamber cover (10) and cylinder head (20)
Valve chamber cover (10), cylinder head (20), camshaft-bearing cap (30) are sealed.
The sealing structure of valve chamber cover the most according to claim 6, it is characterised in that: the length direction of screwed hole is vertical
In valve chamber cover (10) and cylinder head (20), the faying face of camshaft-bearing cap (30).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821377.2A CN106224120B (en) | 2016-09-13 | 2016-09-13 | The sealing structure of valve chamber cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610821377.2A CN106224120B (en) | 2016-09-13 | 2016-09-13 | The sealing structure of valve chamber cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106224120A true CN106224120A (en) | 2016-12-14 |
| CN106224120B CN106224120B (en) | 2019-01-01 |
Family
ID=58075028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610821377.2A Active CN106224120B (en) | 2016-09-13 | 2016-09-13 | The sealing structure of valve chamber cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106224120B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081154A (en) * | 2019-03-11 | 2019-08-02 | 全椒瑞禾动力机械有限公司 | A kind of gear chamber cover blank and gear chamber cover processing method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2350550A1 (en) * | 1973-10-09 | 1975-04-10 | Daimler Benz Ag | Cylinder head gasket for overhead camshaft engine - has greater thickness adjacent cylinder bore than cam shaft drive |
| CN200943534Y (en) * | 2006-06-27 | 2007-09-05 | 奇瑞汽车有限公司 | Hood cover of automobile engine valve chamber |
| CN101408247A (en) * | 2007-10-12 | 2009-04-15 | 石川密封垫板有限责任公司 | Metal gasket |
| CN103670559A (en) * | 2012-09-25 | 2014-03-26 | 重庆长安汽车股份有限公司 | Direct injection engine cam shaft bearing cap |
-
2016
- 2016-09-13 CN CN201610821377.2A patent/CN106224120B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2350550A1 (en) * | 1973-10-09 | 1975-04-10 | Daimler Benz Ag | Cylinder head gasket for overhead camshaft engine - has greater thickness adjacent cylinder bore than cam shaft drive |
| CN200943534Y (en) * | 2006-06-27 | 2007-09-05 | 奇瑞汽车有限公司 | Hood cover of automobile engine valve chamber |
| CN101408247A (en) * | 2007-10-12 | 2009-04-15 | 石川密封垫板有限责任公司 | Metal gasket |
| CN103670559A (en) * | 2012-09-25 | 2014-03-26 | 重庆长安汽车股份有限公司 | Direct injection engine cam shaft bearing cap |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081154A (en) * | 2019-03-11 | 2019-08-02 | 全椒瑞禾动力机械有限公司 | A kind of gear chamber cover blank and gear chamber cover processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106224120B (en) | 2019-01-01 |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| GR01 | Patent grant |