JPH01114906U - - Google Patents
Info
- Publication number
- JPH01114906U JPH01114906U JP939588U JP939588U JPH01114906U JP H01114906 U JPH01114906 U JP H01114906U JP 939588 U JP939588 U JP 939588U JP 939588 U JP939588 U JP 939588U JP H01114906 U JPH01114906 U JP H01114906U
- Authority
- JP
- Japan
- Prior art keywords
- valve seat
- port
- engine
- cylinder head
- combustion chamber
- 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
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 230000008646 thermal stress Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
第１図乃至第３図は本考案の一実施例に係り、
第１図は第２図のＡ部拡大図、第２図はシリンダ
ヘツドの部分断面図、第３図は第２図のＢ矢視図
、第４図は従来の技術に係るシリンダヘツドの底
面図である。
１２……シリンダヘツド、１４……燃焼室、１
６……吸気ポート、１７……排気ポート、１６ａ
，１７ａ……開口部、１９，２０……バルブシー
ト、１９ｂ，２０ｂ……外周部、２２……間隙。
1 to 3 relate to an embodiment of the present invention,
Fig. 1 is an enlarged view of part A in Fig. 2, Fig. 2 is a partial sectional view of the cylinder head, Fig. 3 is a view taken in the direction of arrow B in Fig. 2, and Fig. 4 is a bottom view of the cylinder head according to the prior art. It is a diagram. 12... Cylinder head, 14... Combustion chamber, 1
6...Intake port, 17...Exhaust port, 16a
, 17a... opening, 19, 20... valve seat, 19b, 20b... outer periphery, 22... gap.
Claims (1)
路とを連通するポートに配設されたエンジンのバ
ルブシートにおいて、 熱応力により変形する上記バルブシートの外周
部に、該外周部とバルブシートが嵌合される上記
ポートとの間に、該変形を吸収する間隙が上記バ
ルブシートの厚さ分、所定角度に渡つて形成され
ていることを特徴とするエンジンのバルブシート
。[Scope of Claim for Utility Model Registration] In an engine valve seat disposed at a port that communicates a combustion chamber formed in a cylinder head with an intake and exhaust passage, the valve seat deforms due to thermal stress. A valve seat for an engine, characterized in that a gap for absorbing the deformation is formed between the outer periphery and the port into which the valve seat is fitted, and extends over a predetermined angle by the thickness of the valve seat. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP939588U JPH01114906U (en) | 1988-01-27 | 1988-01-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP939588U JPH01114906U (en) | 1988-01-27 | 1988-01-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01114906U true JPH01114906U (en) | 1989-08-02 |
Family
ID=31216094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP939588U Pending JPH01114906U (en) | 1988-01-27 | 1988-01-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01114906U (en) |
-
1988
- 1988-01-27 JP JP939588U patent/JPH01114906U/ja active Pending