JPS59170605U

JPS59170605U - Internal combustion engine exhaust valve opening/closing device

Info

Publication number: JPS59170605U
Application number: JP6615483U
Authority: JP
Inventors: 木村　譲二
Original assignee: いすゞ自動車株式会社
Priority date: 1983-04-30
Filing date: 1983-04-30
Publication date: 1984-11-15
Also published as: JPH0320488Y2

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図は本考案装置の実施例の要部の一部を示した側面
図、第２図はカムとブツシュロッド部分を示した正面図
、第３図は本考案装置を使用した内燃機関の略示外観図
、第４図ａはサブロッカアーム上限位置保持状態を一部
のみで示した側面図、第４図すはサブロッカアーム下限
位置保持状態を一部のみで示した側面図である。１・・・排気弁、２・・・ロッカアーム、３・・・軸、
５゜７・・・円形カム、訃・・サブロッカアーム、９・
・・サブロッカアーム支持高変更手段、１０・・・ロッ
カアーム連結手段、１１．１３・・・カム、１２．１４
・・・ブツシュロッド、１５・・・排気管、１６・・・
パティキュレイトフィルタ、１７・・・コントローラ、
１８・・・カム軸、１９・・・エアシリンダ、１９Ｂ・
・・上室、２６・・・電磁切換弁、２７・・・圧力セン
サ、２８・・・温度センサ、２９・・・スプリング、３
０・・・ピストン。：篇「１９Ｂ ’）　ｚＩＢｌ■ｚｆＡ第４図３ｏ−Ｃ′Ｌ１　　　　　　　　（ｂ）り　　−　　　
　−Fig. 1 is a side view showing a part of the main parts of an embodiment of the device of the present invention, Fig. 2 is a front view showing the cam and bushing rod portion, and Fig. 3 is a schematic diagram of an internal combustion engine using the device of the present invention. FIG. 4a is a side view showing only a part of the sub-rocker arm in a state in which the upper limit position is held, and FIG. 1... Exhaust valve, 2... Rocker arm, 3... Shaft,
5゜7...Circular cam, butt...Sub rocker arm, 9.
...Sub rocker arm support height changing means, 10...Rocker arm connecting means, 11.13...Cam, 12.14
... Butsch rod, 15... Exhaust pipe, 16...
Particulate filter, 17... controller,
18...Camshaft, 19...Air cylinder, 19B.
...Upper chamber, 26...Solenoid switching valve, 27...Pressure sensor, 28...Temperature sensor, 29...Spring, 3
0... Piston. ：ed. ``19B') zIBl■zfA Figure 4 3o-C'L1 (b)ri -
−

Claims

[Scope of utility model registration request]

A circular cam 5 is fitted into a shaft hole 4 in which the shaft 3 of a rocker arm 2, which allows the exhaust valve 1 to be freely opened and closed, is provided in an eccentric position, and is freely rotatable; and a shaft hole in which the circular cam 5 is provided in an eccentric position. a circular cam 7 that is fitted into the circular cam 7 and is rotatable;
A sub-rocker arm 8 that can freely rotate around .
By rotating the circular cams 5 and 7, the sub-rocker arm 8
A cam 13 and a bushing rod 14 are provided to provide instantaneous rotation in the exhaust valve opening direction to the sub-rocker arm 8 supported at the lower limit during the expansion stroke. Exhaust valve opening/closing device for internal combustion engines.