JPS58191314U

JPS58191314U - Valve mechanism of internal combustion engine

Info

Publication number: JPS58191314U
Application number: JP8957182U
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: JPS6345522Y2

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、
第一３図〜第６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。ヤフト、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・・・同一支点、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・・・第３図第１図鋳（’　　　　Ｉｎ γ 第４図　趙　− 第５図FIG. 1 is a partially sectional front view showing the previously applied valve train mechanism, FIG. 2 is a partially sectional schematic diagram showing the previously filed valve train mechanism,
13 to 6 are partially sectional front views showing a valve mechanism according to an embodiment of the present invention. Explanation of the numbers, R...Rocker arm, 2...Tatsukashi. Yaft, 3... First bushing, 4... Second bushing, 5... Transmission member, 6... Link, 7... Bushing rod, 8... Valve, 9... Same fulcrum, 10・
...Air cylinder, 11... Piston, 12... Piston rod, 13... Lower air supply hole, 14...
Upper air supply hole, 15... Figure 3 Figure 1 Casting (' In γ Figure 4 Zhao - Figure 5

Claims

[Scope of utility model registration request]

(1) A first bushing is fitted onto the rocker shaft eccentrically downward on a Y-Y line passing through the axis with respect to the axis of the rocker shaft; A second bushing is fitted 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,
In a valve operating mechanism for an internal combustion engine, the first bushing and the second bushing are simultaneously rotated and controlled in opposite directions at the same angle with respect to the axis of the rocker shaft, thereby disengaging the rocker arm from the valve. , two links respectively interlocking with the first bushing and the second bushing are provided, 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 rocker arm and the valve are connected at the same fulcrum. A valve operating mechanism for an internal combustion engine, characterized in that the piston rod is held in position via an elastic member as in a state in which the piston rods are in contact with each other and intake and exhaust operations are performed by rocking of the rocker arm.

(2) In the air cylinder, a support member is provided on the piston rod near the same fulcrum of each link, and the elastic member is provided between the support member and the lower outer wall of the air cylinder. A valve mechanism for an internal combustion engine according to claim 1 of the utility model registration claim.

(3) The valve operating mechanism for an internal combustion engine according to claim 1, wherein in the air cylinder, the elastic member is provided between the piston and the upper inner wall of the air cylinder.

(4) 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.

(5) In the air cylinder, when the piston is held in a position where it contacts the upper inner wall of the four-wheel cylinder, there is a portion of the barrel in which compressed air is held between the piston and the upper inner wall of the air cylinder. The valve operating mechanism for an internal combustion engine according to claim 1, wherein a space is formed and a lower air supply hole is further provided.

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