JPS61160208U

JPS61160208U -

Info

Publication number: JPS61160208U
Application number: JP4390385U
Authority: JP
Priority date: 1985-03-28
Filing date: 1985-03-28
Publication date: 1986-10-04

Description

[Brief explanation of drawings]

第１図は本考案の実施例を示す可変気筒制御装
置の縦断面図、第２図は第１図のＡ〜Ａ断面図、
第３図は第２図と作動状態を異にする同制御装置
の側断面図、第４図及び第５図は夫々作動状態を
異にする従来の可変気筒システム図である。図の主要部分の説明、１……ボデー、２……プ
ランジヤ、３……カム、４……バルブ、５……電
磁弁、６……溝、７……バルブステム、８……ス
プリング、１０……ブロツク、１１……プレート
、１４……油路、１５……気筒切替コンピユータ
、１６……逃げ穴、１７……溝、２１……バルブ
スプリング、２２……リターンスプリング、２４
……バルブシート、２５……逃げ穴、２６……プ
ランジヤ収納室。 FIG. 1 is a longitudinal sectional view of a variable cylinder control device showing an embodiment of the present invention, FIG. 2 is a sectional view taken from A to A in FIG.
FIG. 3 is a side sectional view of the same control device in an operating state different from that in FIG. 2, and FIGS. 4 and 5 are diagrams of a conventional variable cylinder system in different operating states. Explanation of the main parts of the diagram, 1...Body, 2...Plunger, 3...Cam, 4...Valve, 5...Solenoid valve, 6...Groove, 7...Valve stem, 8...Spring, 10 ... Block, 11 ... Plate, 14 ... Oil path, 15 ... Cylinder switching computer, 16 ... Relief hole, 17 ... Groove, 21 ... Valve spring, 22 ... Return spring, 24
...Valve seat, 25...Escape hole, 26...Plunger storage chamber.

Claims

[Scope of utility model registration request]

A plunger that can slide inside the block and is movable by hydraulic pressure in a direction perpendicular to the sliding direction is installed in the body that is always pressed against the cam, and one end of the valve stem touches the groove of the plunger during steady operation. When the cam rotates and moves in the same direction as the body slides, the valve at the other end of the valve stem opens and closes, and during cylinder reduction operation, the valve is switched by a signal from a cylinder switching computer. Even if the plunger is pushed by hydraulic pressure and the plunger moves toward the valve via the body due to the rotation of the cam, the valve stem rushes into the escape hole of the plunger and the valve stem does not synchronize with the movement of the plunger. A variable cylinder control device in which a variable cylinder system is operated with a reduced number of cylinders, characterized in that a relief hole for the valve stem is provided at a position directly above the valve stem facing the plunger storage chamber of the body.