JPS5827507U

JPS5827507U - hydraulic tappet device

Info

Publication number: JPS5827507U
Application number: JP12156381U
Authority: JP
Inventors: 海老澤　賢一; 正宏前川
Original assignee: 三菱自動車工業株式会社
Priority date: 1981-08-17
Filing date: 1981-08-17
Publication date: 1983-02-22

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図は本考案の第１実施例を宗す断面図、第２図は同
第２実施例を示す要部説明図である。１６・・・タペット、１８・・・カム、２０・・・シリ
ンダ部材、２２・・・タペット装着部、２４・・・圧油
室、２６・・・第一ピストン部材、２８・・・第２ピス
トン部材、４２・・・縦溝部、４４・・・チェック弁、
４６・・・油路、４８・・・第２の環状溝部。FIG. 1 is a cross-sectional view of a first embodiment of the present invention, and FIG. 2 is an explanatory view of the main parts of the second embodiment. DESCRIPTION OF SYMBOLS 16... Tappet, 18... Cam, 20... Cylinder member, 22... Tappet attachment part, 24... Pressure oil chamber, 26... First piston member, 28... Second Piston member, 42... Vertical groove portion, 44... Check valve,
46... Oil passage, 48... Second annular groove.

Claims

[Scope of utility model registration request]

It is disposed between a cam driven by the engine and an interlocking mechanism connected to a poppet valve in the engine combustion chamber, and its lower end abuts the cam and is slidable on the tappet attachment part of the engine body. a tappet having a cylinder member fitted into the cylinder member and a piston member connected to the interlocking mechanism and fitted into the cylinder member to form hydraulic pressure, one end opening into the oil chamber and the other end opening into the oil chamber; It consists of a passage on the tappet side that opens to the sliding surface and a passage on the engine body side that opens at one end to the sliding surface of the tappet mounting part and the other end communicates with the pressure oil supply source of the engine, and the oil chamber an oil passage that communicates with a pressure oil supply source and supplies hydraulic pressure to the oil chamber; and an oil passage that is interposed in the passage on the tappet side and allows oil in the passage to flow only from the sliding surface of the cylinder member toward the oil chamber. a hydraulic tappet device comprising a check valve for causing fluid flow, and configured such that the other end opening of the passage on the tappet side and one end opening of the passage on the engine body side communicate with each other at least when the lifting height of the cam is zero; A notch extending to the lower end of the cylinder member is provided in the sliding surface of the cylinder member below the opening at the other end of the passage on the tappet side, and when the lifting height of the cam reaches a set value, one end of the passage on the engine body side is provided. A hydraulic tappet device, characterized in that an opening is configured to face the notch.