JPS5848909U

JPS5848909U - Lush adjuster device

Info

Publication number: JPS5848909U
Application number: JP14573281U
Authority: JP
Inventors: 喜多　勉; 山下　幸造; 徹山川
Original assignee: 富士重工業株式会社
Priority date: 1981-09-29
Filing date: 1981-09-29
Publication date: 1983-04-02
Also published as: JPS6132085Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のラッシュアジャスタ装置を示す縦断面図
、第２図は本考案の一実施例によるラッシュアジャスタ
装置を示す縦断面図、第３図は同シールリングの平面図
、第４図は第３図の■矢視部分側面図である。１・・・シリンダヘッド、２・・・吸、排気バルブ、３
−・・・バルブスプリング、４・・・カム軸、５・・・
カム、６・・・ロッカアーム、７・・・プランジャ、８
・・・シリンダ、９・・・バルブシート、１０・・・チ
ェックボール、１１・・・チェックスプリング、１２・
・・リテーナ、１３・・・リターンスプリング、１４・
・・油室、１５・・・小穴、１６・・・室、１７・・・
穴、１８・・・油溝、１９・・・穴、２０・・・油溝、
２１・・・ラッシュアジャスタ組付体、２２・・・有底
の穴、２３・・・導通路、２４・・・□ストッパ、２５
・・・穴、ｉ６・・・嵌挿穴、２７・・・周壁、２８・
・・シールリング、２８ａ・・・切離−し部、２８ｂ・
・・切欠、２９・・・環状バッキング。FIG. 1 is a vertical cross-sectional view showing a conventional lash adjuster device, FIG. 2 is a vertical cross-sectional view showing a lash adjuster device according to an embodiment of the present invention, FIG. 3 is a plan view of the seal ring, and FIG. 4 is a vertical cross-sectional view showing a conventional lash adjuster device. FIG. 3 is a partial side view taken in the direction of the arrow ■ in FIG. 3; 1... Cylinder head, 2... Intake and exhaust valves, 3
-... Valve spring, 4... Camshaft, 5...
Cam, 6...Rocker arm, 7...Plunger, 8
...Cylinder, 9...Valve seat, 10...Check ball, 11...Check spring, 12...
...Retainer, 13...Return spring, 14.
...Oil chamber, 15...Small hole, 16...Chamber, 17...
Hole, 18...oil groove, 19...hole, 20...oil groove,
21...Lash adjuster assembly, 22...Bottomed hole, 23...Conducting path, 24...□Stopper, 25
... Hole, i6 ... Insertion hole, 27 ... Peripheral wall, 28.
... Seal ring, 28a... Separation part, 28b.
...notch, 29...annular backing.

Claims

[Scope of utility model registration request]

In a lash adjuster device in which a plunger supporting a rocker arm of an overhead cam type engine is slidably directly fitted into a bottomed fitting hole formed in a cylinder head, a pressure oil conduit passage provided in the cylinder head is , an annular oil groove formed on the outer circumferential surface of the plunger, communicating with an oil chamber formed in the fit-in type bottom below the plunger through the inside of the plunger and a check valve attached to the plunger, and the outer circumferential surface of the plunger A clearance is formed between a portion of the plunger below the oil groove and a circumferential wall of the fitting hole corresponding to this portion, and a seal ring is fitted in a portion of the plunger below the oil groove that slides into contact with the circumferential wall of the fitting hole. A lash adjuster device, characterized in that a notch or a small hole is formed in the seal ring to control oil flowing through the clearance.