JPS62161083U

JPS62161083U -

Info

Publication number: JPS62161083U
Application number: JP4830986U
Authority: JP
Priority date: 1986-03-31
Filing date: 1986-03-31
Publication date: 1987-10-13

Description

[Brief explanation of drawings]

第１図は本考案に従つたバルブピストンの側面
図、第２図は第１図に於けるＸ部の拡大図、第３
図は本考案のバルブピストンを組込んだ装置に於
けける流体の流れを示す説明図、第４図は第２図
に於ける流体の流れを示す説明図、第５図は従来
のバルブピストンを備えたパワーステアリングギ
ヤバルブ部の全体構成図、第６図は第５図に示さ
れる装置に組込まれた従来のバルブピストンの側
面図、第７図は第５図に於けるＸ部の拡大図、第
８図は従来のバルブピストンを組込んだ装置に於
ける流体の流れを示す説明図、第９図は第８図に
於けるＸ部の拡大図である。１０……パワーステアリングギヤバルブ、１１
……ピストンバルブ、１１ａ……制御エツジ、１
１ｂ……チヤンフア端面、１１ｃ……溝底面、１
２……ブツシユバルブ、１３……テーパランド部
、Ｘ……絞り部。 Fig. 1 is a side view of the valve piston according to the present invention, Fig. 2 is an enlarged view of the X section in Fig. 1, and Fig. 3 is an enlarged view of the
The figure is an explanatory diagram showing the fluid flow in a device incorporating the valve piston of the present invention, Figure 4 is an explanatory diagram showing the fluid flow in Figure 2, and Figure 5 is an explanatory diagram showing the fluid flow in a device incorporating the valve piston of the present invention. Fig. 6 is a side view of a conventional valve piston incorporated in the device shown in Fig. 5, and Fig. 7 is an enlarged view of the X section in Fig. 5. 8 is an explanatory diagram showing the flow of fluid in a device incorporating a conventional valve piston, and FIG. 9 is an enlarged view of the X section in FIG. 8. 10...Power steering gear valve, 11
... Piston valve, 11a ... Control edge, 1
1b...Channifer end surface, 11c...Groove bottom surface, 1
2... Bush valve, 13... Tapered land portion, X... Throttle portion.

Claims

[Scope of utility model registration request]

A power steering valve having a bushing valve and a valve piston, the power steering valve piston having a shape in which a control edge on the return side or a bending point of an end face of a throttle channel and a groove bottom are connected with a taper.