JPH0246009U - - Google Patents
Info
- Publication number
- JPH0246009U JPH0246009U JP1988122693U JP12269388U JPH0246009U JP H0246009 U JPH0246009 U JP H0246009U JP 1988122693 U JP1988122693 U JP 1988122693U JP 12269388 U JP12269388 U JP 12269388U JP H0246009 U JPH0246009 U JP H0246009U
- Authority
- JP
- Japan
- Prior art keywords
- valve stem
- wall surface
- angle
- lower side
- axis
- 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
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Description
第１図ａは、本考案の第１実施例の要部を示す
断面図、第１図ｂは、本考案の第２実施例の要部
を示す断面図、第２図は、バルブステムシールを
バルブステムに組み込んだ構造を示す断面図、第
３図は、リツプ部の摩耗深さに対するリツプ部の
接触面の幅の増加割合を示すグラフ、第４図は、
従来のバルブステムシールを示す断面図である。
１０……バルブステムシール、１１……リツプ
部、１２……突出端、２０……バルブステム、３
１……第１内壁面、３２……第２内壁面。
Fig. 1a is a sectional view showing the main parts of the first embodiment of the present invention, Fig. 1b is a sectional view showing the main parts of the second embodiment of the invention, and Fig. 2 is a valve stem seal. FIG. 3 is a graph showing the increase ratio of the width of the contact surface of the lip against the wear depth of the lip, and FIG.
FIG. 2 is a cross-sectional view showing a conventional valve stem seal. 10... Valve stem seal, 11... Lip portion, 12... Projecting end, 20... Valve stem, 3
1...First inner wall surface, 32... Second inner wall surface.
Claims (1)
出する環状のリツプ部によりバルブステムを摺動
自在に支持するバルブステムシールにおいて、上
記リツプ部の突出端の下側に隣接する第１内壁面
と、この第１内壁面の下側に隣接する第２内壁面
とを形成し、該第２内壁面と上記バルブステムの
軸線とのなす角を、上記第１内壁面と上記バルブ
ステムの軸線とのなす角よりも大きく定めたこと
を特徴とするバルブステムシール。 In a valve stem seal that is fitted onto the outer circumferential surface of a valve guide and slidably supports a valve stem by an annular lip portion that protrudes inward, a first inner portion adjacent to the lower side of the protruding end of the lip portion is provided. a wall surface and a second inner wall surface adjacent to the lower side of the first inner wall surface, and an angle between the second inner wall surface and the axis of the valve stem is formed between the first inner wall surface and the valve stem. A valve stem seal characterized by a larger angle than the angle it makes with the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988122693U JPH0246009U (en) | 1988-09-21 | 1988-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988122693U JPH0246009U (en) | 1988-09-21 | 1988-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0246009U true JPH0246009U (en) | 1990-03-29 |
Family
ID=31370861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988122693U Pending JPH0246009U (en) | 1988-09-21 | 1988-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0246009U (en) |
-
1988
- 1988-09-21 JP JP1988122693U patent/JPH0246009U/ja active Pending