JPS58191310U

JPS58191310U - Valve mechanism of internal combustion engine

Info

Publication number: JPS58191310U
Application number: JP8957282U
Authority: JP
Inventors: 英雄本間
Original assignee: 日本ピストンリング株式会社; いすゞ自動車株式会社
Priority date: 1982-06-17
Filing date: 1982-06-17
Publication date: 1983-12-19
Also published as: JPS6343368Y2

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 drawings]

第１図は、先に出願した動弁機構を示す部分断面正面図
、第２図は先に出願した動弁機構を示す部分断面略図、
第３図〜第５図は本考案の実施例である動弁機構を示す
部分断面正面図を示す。付号の説明、Ｒ・・・・・・ロッカアーム、２・・・・
・田ツカシャフト、３・・・・・・第１ブツシユ、４・
・・・・・第２ブツシユ、５・・・・・・伝達部材、６
・・・・・・リンク、７・・・・・・ブツシュロッド、
８・・・・・・バルブ、９・・・・・・同−ｉ魚１０・
・・・・・エアシリンダ、１１・・・・・・ピストン、
１２・・・・・・ピストンロッド、１３・・・・・・下
部空気供給孔、１４・・・・・・上部空気供給孔、１５
・・・・・・弾性体、１６・・・・・・切り込み部、１
７・・・・・・支持部材。FIG. 1 is a partial cross-sectional front view showing the previously applied valve train mechanism; FIG. 2 is a partial cross-sectional schematic diagram showing the previously filed valve train mechanism;
3 to 5 are partially sectional front views showing a valve train according to an embodiment of the present invention. Explanation of numbers, R... Rocker arm, 2...
・Tatsuka shaft, 3...1st button, 4・
...Second bushing, 5...Transmission member, 6
・・・・・・Link, 7・・・Butschrod,
8... Valve, 9... Same-i fish 10.
...Air cylinder, 11...Piston,
12...Piston rod, 13...Lower air supply hole, 14...Upper air supply hole, 15
..... Elastic body, 16 ..... Notch part, 1
7...Supporting member.

Claims

[Scope of utility model registration request]

(1) A first bushing is fitted onto the rocker shaft eccentrically downward on the Y-Y line passing through the axis with respect to the axis of the rocker shaft, and furthermore, the first bushing is fitted onto the first bushing. A second bushing is fitted and inserted eccentrically on the Y-Y line in the same direction as the eccentric direction of the first bushing with respect to the axis, and a rocker arm is loosely inserted onto the second bushing, and is connected to the first bushing. In the valve operating mechanism for an internal combustion engine, the valve operating mechanism for an internal combustion engine is configured to separate the rocker arm from the valve by rotating and controlling the second bushings at the same angle with respect to the axis of the rocker shaft in mutually opposite directions at the same time. Two links are provided which respectively interlock with the first bushing and the second bushing, the other ends of each link are connected at the same fulcrum, the same fulcrum is connected to the piston rod of the air cylinder, and the same fulcrum of each link is connected to the piston rod of the air cylinder. A support member is provided on the piston rod near the air cylinder, an elastic body is disposed between the support member and the lower outer wall of the air cylinder, and a space is formed by sealing compressed fluid in the elastic body. A valve mechanism for an internal combustion engine characterized by:

(2) The valve operating mechanism for an internal combustion engine according to claim 1, wherein in the air cylinder, the elastic body has a bellows shape.

(3) The valve operating mechanism for an internal combustion engine according to claim 1, wherein the air cylinder is provided with an upper air supply hole and a lower air supply hole.

(4) In the air cylinder, when the piston is held in a position where it contacts the upper inner wall of the air cylinder, there is a partial space between the piston and the upper inner wall of the air cylinder in which compressed air is held. The valve operating mechanism for an internal combustion engine according to claim 1, further comprising a lower air supply hole.

(5) The valve operating mechanism for an internal combustion engine according to claim 4, wherein in the air cylinder, the shape of the screw 1 and/or the upper inner wall of the air cylinder is convex or concave.