JPS58191393U

JPS58191393U - Power steering oil pump flow control device

Info

Publication number: JPS58191393U
Application number: JP8810282U
Authority: JP
Inventors: 元小塚
Original assignee: 三菱自動車工業株式会社
Priority date: 1982-06-15
Filing date: 1982-06-15
Publication date: 1983-12-19
Also published as: JPS6146230Y2

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図は従来のパワーステアリング用オ、イルポンプ装
置の縦断面図、第２図は従来例と本案実施例との吐出流
量特性比較図、第３図は先に開発したパワーステアリン
グ用オイルポンプの流量制御装置の縦断面図、第４図は
本案の第１実施例を示す縦断面図、第５図は本案の第２
実施例を示す縦断面図である。ｂニオイルポンプ、Ｃ：高圧側油路、１□、１゜ニスプ
ール室、２１．２□ニオリフイス、３１，３゜：吐出室
１．４□、４□＝バイパスポート、５１，５□ニスブー
ル、１２、．１２゜ニオリフイス、１３．．１３□：パ
イロット圧油路、１４□、１４２ニブランジヤー室、１
５□。１５□ニブランジヤー、１Ｂ、、１８□：リリーフバル
ブ、２０．２０２’　、２０□′　ニブラグ、２４゜２
４□ニブランジヤー室のポート（環状溝）。Figure 1 is a vertical cross-sectional view of a conventional oil pump device for power steering, Figure 2 is a comparison diagram of discharge flow characteristics between the conventional example and the embodiment of the present invention, and Figure 3 is a diagram of the previously developed oil pump for power steering. A vertical cross-sectional view of the flow rate control device, FIG. 4 is a vertical cross-sectional view showing the first embodiment of the present invention, and FIG. 5 is a vertical cross-sectional view showing the second embodiment of the present invention.
FIG. 3 is a longitudinal cross-sectional view showing an example. b Ni oil pump, C: High pressure side oil passage, 1□, 1° Nispool chamber, 21.2□ Niorifice, 31,3°: Discharge chamber 1.4□, 4□ = Bypass port, 51,5□ Nisbourg, 12,. 12°niorifice, 13. ．． 13□: Pilot pressure oil path, 14□, 142 Ni lunge chamber, 1
5□. 15□ Nib run gear, 1B, 18□: Relief valve, 20.202', 20□' Nib lug, 24°2
4□Nib lunge chamber port (annular groove).

Claims

[Scope of utility model registration request]

A flow controller comprising: a spool chamber communicating with a high-pressure side oil passage of an oil pump; a discharge chamber communicating with the spool chamber via an orifice; and a spool for adjusting an opening of a bypass port of the spool chamber; A plunger chamber to which pilot pressure is supplied from the upstream side of an orifice provided in the high-pressure side oil passage, a plunger in the plunger chamber that abuts the spool, and the front and back of the orifice of the high-pressure side oil passage are connected. A flow control mechanism having a relief valve that communicates with the discharge chamber and the orifice on the flow control valve side and a plunger chamber and its port on the flow control mechanism side are connected to the end side of the spool chamber. A flow rate control device for a power steering oil pump, characterized in that it is disposed on a plug side that is detachably attached to a power steering oil pump.