JPS63118310U

JPS63118310U -

Info

Publication number: JPS63118310U
Application number: JP1005487U
Authority: JP
Priority date: 1987-01-26
Filing date: 1987-01-26
Publication date: 1988-07-30

Description

[Brief explanation of the drawing]

第１図及び第２図は本考案の実施例を示し、第
１図は油圧タペツトの要部拡大縦面図、第２図は
油圧タペツトの縦断面図である。第３図は従来技
術の第１図相当図である。２……エンジンの機壁、３……タペツトボデイ
、４……プランジヤ、５……アジヤステイングチ
ヤンバー、６……プランジヤ付勢バネ、７……逆
止弁、１２……プツシユロツド、１０……オイル
溜室、１１……４の上壁、１２……エア抜き孔、
１５……オイル流入口、２０……３の上面、２１
……オイル受け部、２２……オイル導入路、Ｃ…
…動弁カム。 1 and 2 show an embodiment of the present invention, with FIG. 1 being an enlarged vertical sectional view of the main part of a hydraulic tappet, and FIG. 2 being a longitudinal sectional view of the hydraulic tappet. FIG. 3 is a diagram corresponding to FIG. 1 of the prior art. 2... Engine wall, 3... Tappet body, 4... Plunger, 5... Adjusting chamber, 6... Plunger biasing spring, 7... Check valve, 12... Push rod, 10... Oil Reservoir chamber, 11...upper wall of 4, 12...air vent hole,
15...Oil inlet, 20...Top surface of 3, 21
...Oil receiver, 22...Oil introduction path, C...
...Valve cam.

Claims

[Scope of Claim for Utility Model Registration] A tapepet body 3 in contact with a valve drive cam C is supported on the engine wall 2 so as to be slidable up and down, and a plunger 4 having an oil reservoir 10 inside is slid up and down inside the tapepet body 3. A plunger biasing spring 6 is disposed between the tappet body 3 and the plunger 4, and an adjusting chamber 5 housing the plunger biasing spring 6 and an oil reservoir chamber 10 in the plunger 4 are movably mounted. In an engine hydraulic tappet configured to communicate via a check valve 7 and supply oil flowing down through a guide hole portion of a push rod 12 to an oil reservoir chamber 10, an oil receiving portion is provided on an upper surface 20 of the tappet body 3. 2
1 is recessed in an annular shape, and an oil inlet 15 is provided through the upper circumferential side wall of the plunger 4, and the oil receiving portion 21 and the oil inlet 15 are communicated through an oil introduction passage 22 provided transparently in the tapepet body 3. A hydraulic tappet for an engine characterized in that an air bleed hole 12 communicating with an oil reservoir chamber 10 is provided in an upper wall 11 of a plunger 3.