JPH01162007U

JPH01162007U -

Info

Publication number: JPH01162007U
Application number: JP5976988U
Authority: JP
Priority date: 1988-05-03
Filing date: 1988-05-03
Publication date: 1989-11-10

Description

[Brief explanation of the drawing]

第１図および第２図は、第１実施例にかかるバ
ルブ作動装置を示し、第１図はその側面断面図、
第２図はスラストワツシヤの斜視図、第３図及び
第４図は第２実施例におけるスラストワツシヤの
配置を示す側面断面図、第５図は第３実施例にお
けるスラストワツシヤの斜視図、第６図ないし第
８図は従来のバルブ作動装置を示し、第６図及び
第７図はその側面断面図、第８図はスラストベア
リングの平面図、第９図は他の従来例のバルブ作
業装置の側面断面図である。１……バルブ、１５……リテーナ、２……スプ
リング、３１，３２……スラストワツシヤ、３１
１……低摩擦層、３２１……油溝、４……シリン
ダヘツド、４１……スプリング座、９１……カム
、９５……スラストベアリング。 1 and 2 show a valve operating device according to a first embodiment, FIG. 1 is a side sectional view thereof,
FIG. 2 is a perspective view of the thrust washer, FIGS. 3 and 4 are side sectional views showing the arrangement of the thrust washer in the second embodiment, FIG. 5 is a perspective view of the thrust washer in the third embodiment, and FIGS. FIG. 8 shows a conventional valve operating device, FIGS. 6 and 7 are side sectional views thereof, FIG. 8 is a plan view of the thrust bearing, and FIG. 9 is a side sectional view of another conventional valve operating device. It is. 1... Valve, 15... Retainer, 2... Spring, 31, 32... Thrust washer, 31
1...Low friction layer, 321...Oil groove, 4...Cylinder head, 41...Spring seat, 91...Cam, 95...Thrust bearing.

Claims

[Claims for Utility Model Registration] (1) A valve biased by a spring in the valve closing direction, a lifter provided at the upper end of the valve,
a cam attached to a camshaft and directly driving the valve via the lifter;
In a valve actuation device for an internal combustion engine, the cam is arranged such that a point of action of the cam on the lifter is offset from the valve axis of the valve in the axial direction of the camshaft, wherein: between the spring and the support part of the spring. 1. A valve actuation device for an internal combustion engine, characterized in that an annular thrust washer is disposed in the holder, and the thrust washer has a low-friction layer on one side. (2) A valve operating device for an internal combustion engine according to claim 1, wherein the thrust washer has an oil holding hole on one side thereof.