JPS6422802U

JPS6422802U -

Info

Publication number: JPS6422802U
Application number: JP11800387U
Authority: JP
Priority date: 1987-07-31
Filing date: 1987-07-31
Publication date: 1989-02-07

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図
は全体油圧回路図、第２図は或る気筒の吸気側動
弁装置の平面図、第３図は第２図の−線断面
図、第４図は第２図の−線拡大断面図、第５
図は連結切換機構および制御弁の構成を示す断面
図である。１……吸気弁、２……カムシヤフト、６……ロ
ツカシヤフト、７，８，９……ロツカアーム、３
８……第１油圧供給路、３９……第２油圧供給路
。 The drawings show one embodiment of the present invention; Fig. 1 is an overall hydraulic circuit diagram, Fig. 2 is a plan view of the intake side valve gear of a certain cylinder, and Fig. 3 is a cross section taken along the line - - in Fig. 2. Figure 4 is an enlarged sectional view taken along the - line in Figure 2;
The figure is a sectional view showing the configuration of a connection switching mechanism and a control valve. 1...Intake valve, 2...Camshaft, 6...Rock shaft, 7, 8, 9...Rock arm, 3
8...First hydraulic supply path, 39...Second hydraulic supply path.

Claims

[Scope of utility model registration request]

In a valve operating system for an internal combustion engine in which a rocker arm for driving an intake valve or an exhaust valve is pivotally supported on a rocker shaft so as to swing in accordance with the rotation of the camshaft, the rocker shaft has a valve shaft with a relatively small flow cross-sectional area. A valve operating system for an internal combustion engine, characterized in that a first hydraulic pressure supply path and a second hydraulic pressure supply path having a relatively large circulation cross-sectional area are provided with substantially equal wall thicknesses of a rock shaft.