JPH0343507U

JPH0343507U -

Info

Publication number: JPH0343507U
Application number: JP10436689U
Authority: JP
Priority date: 1989-09-07
Filing date: 1989-09-07
Publication date: 1991-04-24

Description

[Brief explanation of the drawing]

第１図は、本考案の油圧式ラツシユアジヤスタ
の第１実施例を示す縦断面図であり、第２図ａお
よびｂは、それぞれ第１実施例の油圧式ラツシユ
アジヤスタに用いられる封止部材の正面図および
側面図である。第３図は、本考案の油圧式ラツシ
ユアジヤスタの第２実施例を示す縦断面図であり
、第４図ａおよびｂは、それぞれ第２実施例の油
圧式ラツシユアジヤスタに用いられる封止部材の
正面図および側面図であり、第５図は、本考案の
油圧式ラツシユアジヤスタの第３実施例を示す縦
断面図であり、第６図は、本考案の油圧式ラツシ
ユアジヤスタの第４実施例を示す縦断面図であり
、第７図は、各実施例に用いられている封止部材
または封止部分の断面構造の一例を示す断面図で
あり、第８図は、各実施例のラツシユアジヤスタ
が組み込まれた状態で示すシリンダヘツドの断面
図である。主要部分の符号の説明、１……ボデイー、１ａ
……油導入口、２……プランジヤキヤツプ、３…
…プランジヤ、１１……高圧室、１４，５４……
セパレーター、１５……リザーバ室、２８……ポ
ケツト、４０，４１，４２，４３……封止部材（
封止部分）、１０，５０，６０，７０……油圧式
ラツシユアジヤスタ。 FIG. 1 is a longitudinal sectional view showing a first embodiment of the hydraulic lash adjuster of the present invention, and FIGS. 2 a and 2 b are each used in the hydraulic lash adjuster of the first embodiment. FIG. 3 is a front view and a side view of the sealing member. FIG. 3 is a longitudinal sectional view showing a second embodiment of the hydraulic lash adjuster of the present invention, and FIGS. 4a and 4b are each used in the hydraulic lash adjuster of the second embodiment. FIG. 5 is a longitudinal sectional view showing a third embodiment of the hydraulic lash adjuster of the present invention, and FIG. 6 is a front view and a side view of the sealing member. FIG. 7 is a longitudinal cross-sectional view showing a fourth embodiment of the shaft adjuster; FIG. 7 is a cross-sectional view showing an example of the cross-sectional structure of the sealing member or sealing portion used in each embodiment; The figure is a sectional view of the cylinder head in which the lash adjuster of each embodiment is installed. Explanation of symbols of main parts, 1...Body, 1a
...Oil inlet, 2...Plunger cap, 3...
...Plunger, 11... Hyperbaric chamber, 14, 54...
Separator, 15... Reservoir chamber, 28... Pocket, 40, 41, 42, 43... Sealing member (
Sealed part), 10, 50, 60, 70...Hydraulic latch adjuster.

Claims

[Scope of Claim for Utility Model Registration] 1. A hydraulic latch adjuster that is held in the cylinder head and transmits the rotational displacement of the cam to the intake and exhaust valves without creating any valve clearance, and which introduces oil from the outside. a cup-shaped main body having an oil inlet port; a plunger fitted into the main body so as to be slidable in the axial direction; and a plunger that is separate from the plunger and is slidable in the axial direction above the plunger. a plunger cap that is fitted into the plunger cap, and a sealing member is interposed on the mating surface of the plunger and the plunger cap to prevent oil in the lash adjuster from flowing out through the mating surface. A hydraulic latch adjuster characterized by: 2. The hydraulic lash adjuster according to claim 1, wherein the sealing member is a metal ring coated with a sealant on both sides.