JPS6382006U - - Google Patents
Info
- Publication number
- JPS6382006U JPS6382006U JP1986175394U JP17539486U JPS6382006U JP S6382006 U JPS6382006 U JP S6382006U JP 1986175394 U JP1986175394 U JP 1986175394U JP 17539486 U JP17539486 U JP 17539486U JP S6382006 U JPS6382006 U JP S6382006U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve stem
- intake
- lip portion
- annular lip
- 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
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
第１図は本考案の実施例の要部をあらわす断面
図、第２図は本考案の実施例をあらわす断面図、
第３図は本考案の他の実施例の要部をあらわす断
面図である。
１……シリンダヘツド、２……バルブガイド、
３……吸気弁、４……バルブステム、６……吸気
ポート、９……バルブリフタ、１１……カム、１
２，１３……バルブステムオイルシール部材、１
４……環状リツプ部、１５……気密室、１７……
締付けスプリング、１８……円筒部材。
FIG. 1 is a cross-sectional view showing the main parts of an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing an embodiment of the present invention.
FIG. 3 is a sectional view showing the main parts of another embodiment of the present invention. 1...Cylinder head, 2...Valve guide,
3...Intake valve, 4...Valve stem, 6...Intake port, 9...Valve lifter, 11...Cam, 1
2, 13... Valve stem oil seal member, 1
4... Annular lip portion, 15... Airtight chamber, 17...
Tightening spring, 18...Cylindrical member.
Claims (1)
動自由にバルブステムを挿入し、吸気ポートに突
き出たバルブガイドの端部にバルブステムオイル
シール部材を設けたエンジンの吸気弁シール構造
において、前記バルブステムオイルシール部材の
環状リツプ部をバルブステムの外周に当接し、吸
気管負圧の上昇にしたがい、前記環状リツプ部の
バルブステムへの接触面圧を高める構成にしたこ
とを特徴とするエンジンの吸気弁シール構造。 In an engine intake valve seal structure, a valve stem is slidably inserted into a valve guide fixed to a cylinder head, and a valve stem oil seal member is provided at an end of the valve guide protruding into an intake port. An intake valve for an engine, characterized in that the annular lip portion of the seal member is in contact with the outer periphery of the valve stem, and as the intake pipe negative pressure increases, the contact surface pressure of the annular lip portion with the valve stem is increased. Seal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986175394U JPH055204Y2 (en) | 1986-11-17 | 1986-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986175394U JPH055204Y2 (en) | 1986-11-17 | 1986-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6382006U true JPS6382006U (en) | 1988-05-30 |
| JPH055204Y2 JPH055204Y2 (en) | 1993-02-10 |
Family
ID=31114680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986175394U Expired - Lifetime JPH055204Y2 (en) | 1986-11-17 | 1986-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH055204Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193002U (en) * | 1981-05-29 | 1982-12-07 | ||
| JPS59117808U (en) * | 1983-01-31 | 1984-08-09 | 日野自動車株式会社 | Valve stem oil seal device |
-
1986
- 1986-11-17 JP JP1986175394U patent/JPH055204Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57193002U (en) * | 1981-05-29 | 1982-12-07 | ||
| JPS59117808U (en) * | 1983-01-31 | 1984-08-09 | 日野自動車株式会社 | Valve stem oil seal device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH055204Y2 (en) | 1993-02-10 |