JPS58190261U - Power steering oil pump flow control device - Google Patents
Power steering oil pump flow control deviceInfo
- Publication number
- JPS58190261U JPS58190261U JP8810182U JP8810182U JPS58190261U JP S58190261 U JPS58190261 U JP S58190261U JP 8810182 U JP8810182 U JP 8810182U JP 8810182 U JP8810182 U JP 8810182U JP S58190261 U JPS58190261 U JP S58190261U
- Authority
- JP
- Japan
- Prior art keywords
- oil pump
- spool
- orifice
- power steering
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
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A、 Bは従来例と本案実施例の流
量特性比較図、第3図は先に開発され本案の基本構成と
なるパワーステアリング用オイルポンプの流量制御装置
を示す縦断面図、第4図は第3図に装備されるリリーフ
バルブの第1実施例を示す縦断面図、第5図は同リリー
フバルブの第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ニスプール室、
2ニオリフイス、3:吐出室、4:バイパスポート、5
ニスプール、6:背圧室、6′ :ばね(スプリング)
’、12ニオリフイス、13:パイロット圧油路、14
ニブランジヤー室、15ニブランジヤー、50゜70:
リリーフバルブ、52ニブランジヤー、52′ 二弁部
、53ニブラグ、56:スプリング、57:流入油路、
58:シール部、59:環状溝、60:流出油路、61
:連絡油孔、71:0ツド、72:ロッド孔、74.
75:油路。Figure 1 is a vertical cross-sectional view of a conventional oil pump device for power steering, Figure 2 A and B are comparison diagrams of the flow characteristics of the conventional example and the embodiment of the present invention, and Figure 3 is the basic configuration of the oil pump developed earlier and the present invention. A vertical sectional view showing a flow rate control device for a power steering oil pump, FIG. 4 is a vertical sectional view showing a first embodiment of the relief valve installed in FIG. 3, and FIG. 5 is a second embodiment of the same relief valve. It is a longitudinal cross-sectional view showing an example. b 2 oil pump, C: high pressure side oil path, 1 varnish spool chamber,
2 Niorifice, 3: Discharge chamber, 4: Bypass port, 5
Varnish spool, 6: Back pressure chamber, 6': Spring
', 12 Niorifice, 13: Pilot pressure oil line, 14
Nibranger chamber, 15 nibranger, 50°70:
Relief valve, 52 nib plunger, 52' two valve part, 53 nib lug, 56: spring, 57: inflow oil path,
58: Seal portion, 59: Annular groove, 60: Outflow oil path, 61
: Communication oil hole, 71: 0 hole, 72: Rod hole, 74.
75: Oil road.
Claims (1)
スプール室にオリフィスを介し連通した吐出室と、前記
スプール室に設けた前記オイルポンプへのバイパスポー
トと、油圧とばねにより付勢された前記バイパスポート
の開口を調節するスプールとよりなるフローコントロー
ルバルブヲ併設したオイルポンプにおいて、前記高圧側
油路に設けたオリフィスの上流側より供給されるパイロ
ット圧にて前記スプール室側から前記スプールに当接す
るプランジャーを設け、かつ前記オリフィスの前後間に
低抵抗および低フリクションのリリーフバルブを設けた
ことを特徴を有するパワーステアリング用オイルポンプ
の流量制御装置。A spool chamber communicating with the high-pressure side oil passage of the oil pump, a discharge chamber communicating with the spool chamber via an orifice, a bypass port to the oil pump provided in the spool chamber, and a spool chamber energized by hydraulic pressure and a spring. In an oil pump equipped with a flow control valve consisting of a spool that adjusts the opening of the bypass port, pilot pressure supplied from the upstream side of an orifice provided in the high-pressure side oil passage is used to control the flow from the spool chamber side to the spool. A flow rate control device for an oil pump for power steering, characterized in that a plunger is provided in contact with the orifice, and relief valves with low resistance and low friction are provided between front and rear of the orifice.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8810182U JPS58190261U (en) | 1982-06-15 | 1982-06-15 | Power steering oil pump flow control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8810182U JPS58190261U (en) | 1982-06-15 | 1982-06-15 | Power steering oil pump flow control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58190261U true JPS58190261U (en) | 1983-12-17 |
JPH0137973Y2 JPH0137973Y2 (en) | 1989-11-15 |
Family
ID=30096790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8810182U Granted JPS58190261U (en) | 1982-06-15 | 1982-06-15 | Power steering oil pump flow control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58190261U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6143989U (en) * | 1984-08-28 | 1986-03-22 | 石川島播磨重工業株式会社 | Squeeze type concrete pump tube support device |
-
1982
- 1982-06-15 JP JP8810182U patent/JPS58190261U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6143989U (en) * | 1984-08-28 | 1986-03-22 | 石川島播磨重工業株式会社 | Squeeze type concrete pump tube support device |
Also Published As
Publication number | Publication date |
---|---|
JPH0137973Y2 (en) | 1989-11-15 |
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