KR20160120554A - Groove structure for gasket having separating prevention portion - Google Patents
Groove structure for gasket having separating prevention portion Download PDFInfo
- Publication number
- KR20160120554A KR20160120554A KR1020150049773A KR20150049773A KR20160120554A KR 20160120554 A KR20160120554 A KR 20160120554A KR 1020150049773 A KR1020150049773 A KR 1020150049773A KR 20150049773 A KR20150049773 A KR 20150049773A KR 20160120554 A KR20160120554 A KR 20160120554A
- Authority
- KR
- South Korea
- Prior art keywords
- gasket
- pentagonal
- cylinder head
- groove
- head cover
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- 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
Abstract
Description
More particularly, the present invention relates to a groove structure for a gasket having a release preventing portion used as a sealing means between a cylinder head cover and a cylinder head while preventing a gasket from being separated from the gasket. .
In general, a gasket is sandwiched between a coupling surface or a contact surface between a component and a component passing through a fluid, a gas or the like in an engine (internal combustion engine), oil / air pressure apparatus, etc. to maintain airtightness therebetween to prevent leakage .
Among the gaskets, those applied to the engine portion of a vehicle or the like are provided between the joint surfaces of the cylinder block and the cylinder head, particularly between the contact surfaces of the cylinder head and the cylinder head cover, And prevents leakage of high-pressure combustion gas in the combustion chamber. The interior of the combustion chamber lies in a mechanical environment in which the internal pressure of the cylinder changes continuously during a four stroke cycle of compression, expansion, explosion, and venting.
In particular, existing gaskets provide basic functions as sealing or sealing means, but they can be used to more efficiently produce gaskets or to provide additional functions to the gaskets in various situations during factory automation production, management, storage and transport of gaskets Technology is being developed.
For example,
In
That is, as shown in FIG. 1, the gasket of
Nevertheless, the
On the other hand, also in
That is, in the prior art, since the
The
[Patent Literature]
(Patent Document 1) Registration Utility Model No. 20-0426468 (2006.09.07)
(Patent Document 2) Registration No. 20-0345161 (2004.03.05)
SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide a gasket having a pentagonal separation prevention part integrally formed on an upper side thereof, Which is capable of preventing the gasket from being separated from the gasket during transportation or impact, without using the release preventing protrusion which is separately attached or coupled by forming the cylinder head cover on the cylinder head cover.
According to an aspect of the present invention, there is provided a groove structure for a gasket having a deviation preventing portion formed in the cylinder head cover for assembling a gasket interposed as a sealing seal between a cylinder head cover and a cylinder head, A body portion contacting the surface of the cylinder head; And a pentagonal recess portion formed integrally on the upper side of the body portion, wherein a hexagonal groove having a pentagonal groove cross-sectional shape is formed on the bottom surface of the cylinder head cover so as to be able to be formed at the time of assembling the pentagonal- A groove structure for a gasket having a release preventing portion is provided.
The pentagonal groove may have a lower inclined groove surface parallel to a lower inclined surface of a pair of the pentagonal departure preventing portions extending in an outer oblique direction from upper ends of both side surfaces of the body portion; An upper inclined groove surface is formed parallel to the upper inclined surfaces of the pair of pentagonal departure preventing portions extending inwardly from the upper end of the lower inclined surface and contacting with each other.
In addition, a rounded inlet curved surface is formed at an inlet edge where the lower inclined groove surface meets the bottom surface of the cylinder head cover.
A rounded groove curved surface is formed at the boundary between the lower inclined groove surface and the upper inclined groove surface, and between the one upper inclined groove surface and the other upper inclined groove surface.
The lower inclined groove surface and the upper inclined groove surface respectively define a predetermined gap with respect to the lower inclined surface of the pentagonal departure preventing portion or the upper inclined surface of the pentagonal departure preventing portion.
According to the groove structure for a gasket having a release preventing portion according to an aspect of the present invention, the shape of the pentagonal cross section can be formed in the gasket and the groove, so that the separate escape projection can be additionally engaged It is possible to increase the manufacturing efficiency while reducing the manufacturing cost of the gasket.
In addition, in the present invention, the pentagonal departure preventing portion of the gasket is integrally formed relatively large in comparison with the width of the body portion of the gasket, and the upper inclined surface of the pentagonal departure preventing portion can be used to smoothly engage the pentagonal groove There are advantages.
Further, since the gasket is compressed in a pentagonal groove, stress is generated in a relatively large number of places, and a relatively large contact area is provided. Therefore, the effect of increasing airtightness have.
1 is a cross-sectional view of a gasket and a groove according to the prior art;
FIG. 2 is a cross-sectional view of a gasket having a release preventing portion according to an embodiment of the present invention; FIG.
3 is a cross-sectional view of a cylinder head cover having a pentagonal groove for engaging with a gasket having the release preventing portion shown in Fig.
Fig. 4 is a sectional view for explaining an operating relationship in which the gasket shown in Fig. 2 is prevented from being separated from the pentagonal groove of the cylinder head cover shown in Fig. 3 by an external force. Fig.
Fig. 5 is a sectional view for explaining the assembly state between the gasket shown in Fig. 2 and the cylinder head cover and the cylinder head shown in Fig. 3;
6 is a sectional view for explaining a state in which compressive stress is applied to the gasket shown in Fig.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
2 is a cross-sectional view of a gasket having a release preventing portion according to an embodiment of the present invention.
Referring to FIG. 2, the present embodiment is a gasket having an escape preventing portion or an assembly or a set to which the gasket is coupled. The gasket includes a groove structure to be coupled between a cylinder head and a cylinder head cover .
Here, the
In addition, the groove structure refers to a pentagonal groove to be described below.
In the following description, the
The
The
The
Here, the cylinder head cover and the cylinder head can be assembled through bolts not shown. The bolt is a fastening part that fixes the cylinder head cover and the cylinder head to each other while appropriately compressing the
The
The
The pentagonal
Here, the pentagonal
In addition, the pentagonal
The pentagonal
A portion between the upper ends of the
The rounded
A portion between the upper end of the lower
Therefore, in the pentagonal
The pentagonal
The pentagonal
In other words, the pentagonal
The inner angles R1, R2, and R3 may differ depending on the cross-sectional shape of the pentagonal departure-avoiding
3 is a cross-sectional view of a cylinder head cover having a pentagonal groove for engaging with a gasket having the release preventing portion shown in Fig.
3, a groove structure for a gasket having a release preventing portion is provided for assembling the
That is, the
The
The
To this end, the
The
Fig. 4 is a cross-sectional view for explaining an operating relationship in which the gasket shown in Fig. 2 is prevented from being separated from the pentagonal groove of the cylinder head cover shown in Fig. 3 by an external force.
4, when the pentagonal
3, a rounded entrance
The rounded inlet
A boundary portion between the lower
The rounded groove curved
FIG. 5 is a cross-sectional view for explaining the assembled state between the gasket shown in FIG. 2, the cylinder head cover and the cylinder head shown in FIG. 3, FIG. 6 is a view for explaining a state in which compressive stress is applied to the gasket shown in FIG. Sectional view.
5, the lower
When the
In addition, even if the
Referring to FIG. 6, when the bolt is completely tightened, the
As described above, in the present embodiment, since the pentagonal
10: cylinder head cover 20: cylinder head
100: gasket 110:
120: 5 angle separation preventing part 200: pentagonal groove
Claims (5)
Wherein the gasket has a body portion contacting the surface of the cylinder head; And a pentagon-shaped departure preventing portion integrally formed on the upper side of the body portion,
And a pentagonal groove having a pentagonal groove cross-sectional shape is formed on the bottom surface of the cylinder head cover so as to be mutually formed when assembling the pentagonal departure preventing portion.
In the pentagonal groove,
A lower inclined groove surface parallel to the lower inclined surfaces of the pair of pentagonal departure preventing portions extending in an outer oblique direction from upper ends of both side surfaces of the body portion; And an upper inclined groove surface extending parallel to the upper inclined surfaces of the pair of pentagonal departure preventing portions extending in an inner inclined direction from the upper end of the lower inclined surface and facing each other. structure.
Wherein a rounded inlet curved surface is formed at an inlet rim where the lower inclined groove surface and the bottom surface of the cylinder head cover meet.
Wherein a rounded groove curved surface is formed at a boundary between the lower inclined groove surface and the upper inclined groove surface and a boundary between the one upper inclined groove surface and the other upper inclined groove surface. structure.
Wherein the lower inclined groove surface and the upper inclined groove surface form a predetermined gap with respect to the lower inclined surface of the pentagonal departure preventing portion or the upper inclined surface of the pentagonal departure preventing portion, respectively, .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150049773A KR101686433B1 (en) | 2015-04-08 | 2015-04-08 | Groove structure for gasket having separating prevention portion |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020150049773A KR101686433B1 (en) | 2015-04-08 | 2015-04-08 | Groove structure for gasket having separating prevention portion |
Publications (2)
Publication Number | Publication Date |
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KR20160120554A true KR20160120554A (en) | 2016-10-18 |
KR101686433B1 KR101686433B1 (en) | 2016-12-14 |
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KR1020150049773A KR101686433B1 (en) | 2015-04-08 | 2015-04-08 | Groove structure for gasket having separating prevention portion |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113915526A (en) * | 2021-10-26 | 2022-01-11 | 江剑 | High-temperature high-pressure cylinder sealing assembly |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH037965U (en) * | 1989-06-14 | 1991-01-25 | ||
JP2002295683A (en) * | 2001-03-28 | 2002-10-09 | Nok Corp | Seal for dovetail groove |
KR200345161Y1 (en) | 2003-12-08 | 2004-03-18 | 동아공업 주식회사 | Structure of preventing cylinder head cover gasket from falling down |
KR200426468Y1 (en) | 2006-05-10 | 2006-09-18 | 동아공업 주식회사 | Gasket for prevent collapse |
JP2007130043A (en) * | 2005-11-08 | 2007-05-31 | Idemitsu Unitech Co Ltd | Interlocking device, and bag using the same, and their manufacturing method |
JP2011085233A (en) * | 2009-10-19 | 2011-04-28 | Mitsubishi Cable Ind Ltd | Seal and sealing structure |
-
2015
- 2015-04-08 KR KR1020150049773A patent/KR101686433B1/en active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH037965U (en) * | 1989-06-14 | 1991-01-25 | ||
JP2002295683A (en) * | 2001-03-28 | 2002-10-09 | Nok Corp | Seal for dovetail groove |
KR200345161Y1 (en) | 2003-12-08 | 2004-03-18 | 동아공업 주식회사 | Structure of preventing cylinder head cover gasket from falling down |
JP2007130043A (en) * | 2005-11-08 | 2007-05-31 | Idemitsu Unitech Co Ltd | Interlocking device, and bag using the same, and their manufacturing method |
KR200426468Y1 (en) | 2006-05-10 | 2006-09-18 | 동아공업 주식회사 | Gasket for prevent collapse |
JP2011085233A (en) * | 2009-10-19 | 2011-04-28 | Mitsubishi Cable Ind Ltd | Seal and sealing structure |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113915526A (en) * | 2021-10-26 | 2022-01-11 | 江剑 | High-temperature high-pressure cylinder sealing assembly |
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Publication number | Publication date |
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KR101686433B1 (en) | 2016-12-14 |
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