JPH01158504U

JPH01158504U -

Info

Publication number: JPH01158504U
Application number: JP1988050827U
Authority: JP
Priority date: 1988-04-15
Filing date: 1988-04-15
Publication date: 1989-11-01

Description

[Brief explanation of the drawing]

第１図および第２図は本考案のバルブステムシ
ールの一実施例を示し、第１図は全体を示す断面
図、第２図は要部の拡大断面図、第３図は従来例
のバルブステムシールを装着したエンジンヘツド
部の断面図、第４図は従来のバルブステムシール
の拡大断面図である。７……バルブステム、８……ガイド、８ａ……
内周側凹所、２０……バルブステムシール、２１
……ケーシング、２１ａ……筒部、２１ｂ……フ
ランジ部、２２……シール部材、２３……締付け
ばね、２４……シールハウジング、２５……シー
ルリツプ。 Figures 1 and 2 show an embodiment of the valve stem seal of the present invention, Figure 1 is a sectional view showing the whole, Figure 2 is an enlarged sectional view of the main part, and Figure 3 is a conventional valve stem seal. FIG. 4 is an enlarged sectional view of a conventional valve stem seal. 7... Valve stem, 8... Guide, 8a...
Inner circumference side recess, 20... Valve stem seal, 21
... Casing, 21a ... Cylinder part, 21b ... Flange part, 22 ... Seal member, 23 ... Tightening spring, 24 ... Seal housing, 25 ... Seal lip.

Claims

[Claims for Utility Model Registration] (1) A casing that forms an annular seal housing that is fitted into an inner recess on the valve side end of the guide through which the valve stem is inserted and whose inner circumference is open. , is installed in the seal housing so as to form an oil seal between the valve side wall surface and the opposing wall surface, and is movable at least in the radial direction, and has an oil seal in contact with the valve stem on the inner periphery. A valve stem seal having an annular seal member having a seal lip formed therein. (2) A casing that forms an annular seal housing that is fitted into a recess on the inner circumferential side of the valve side end of the guide through which the valve stem is inserted and whose inner circumferential side is open; The valve stem is provided with an oil seal between the wall surface and the opposing wall surface, and is mounted so as to be movable at least in the radial direction, and a seal lip is formed on the inner periphery of the valve stem to form an oil seal in contact with the valve stem. A valve stem seal comprising an annular seal member and an annular tightening spring attached to the outer circumference of the seal member to apply a tightening force to reduce the diameter of the seal lip.