JPS6282389U - - Google Patents
Info
- Publication number
- JPS6282389U JPS6282389U JP17405785U JP17405785U JPS6282389U JP S6282389 U JPS6282389 U JP S6282389U JP 17405785 U JP17405785 U JP 17405785U JP 17405785 U JP17405785 U JP 17405785U JP S6282389 U JPS6282389 U JP S6282389U
- Authority
- JP
- Japan
- Prior art keywords
- pump
- pressure
- discharge
- valve
- power steering
- 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.)
- Pending
Links
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Description
第１図は本考案のベーンポンプの断面図、第２
図はポンプボデイの平面図、第３図は第２図の
―線断面図、第４図は従来のベーンポンプの断
面図、第５図は第４図の―線断面図である。
１……ポンプボデイ、２……弁収容孔、３……
スプール弁、９……供給路、３１……一次圧力室
、３２……二次圧力室、３３……吐出通路、３３
ａ……メインオリフイス、Ｂ……ポンプの吐出室
。
Figure 1 is a sectional view of the vane pump of the present invention, Figure 2 is a sectional view of the vane pump of the present invention.
3 is a plan view of the pump body, FIG. 3 is a cross-sectional view taken along the line - - in FIG. 2, FIG. 4 is a cross-sectional view of a conventional vane pump, and FIG. 5 is a cross-sectional view taken along the line - - in FIG. 4. 1...Pump body, 2...Valve housing hole, 3...
Spool valve, 9... Supply path, 31... Primary pressure chamber, 32... Secondary pressure chamber, 33... Discharge passage, 33
a...Main orifice, B...Pump discharge chamber.
Claims (1)
内に、摺動可能にスプール弁を収容して、該スプ
ール弁の一端側にポンプの吐出圧がそのまま導入
される一次圧力室を形成すると共に、他端側には
メインオリフイスで絞られた後のパワーステアリ
ングへの供給路の供給圧が導入される二次圧力室
を形成し、これら各圧力室の圧力差に基づき、前
記スプール弁を摺動制御して余剰油のポンプの吸
入部への還流量と増減させ、パワーステアリング
へ供給する油量及び油圧を制御するようになつて
いるポンプの流量制御弁において、前記弁収容孔
の開口端近傍から前記ポンプボデイに吐出通路を
穿設し、内端をポンプの吐出室に、外端を前記パ
ワーステアリングへの供給路に臨ませると共に、
該吐出通路にはメインオリフイスを形成し、ポン
プの吐出油を該メインオリフイスを介して前記吐
出通路から前記供給路へ導入してパワーステアリ
ングへ供給する一方、前記弁収容孔の開口端側に
、前記メインオリフイス下流の供給圧が導入され
る二次圧力室を形成したことを特徴とするポンプ
の流量制御弁。 A valve housing hole is formed in the pump body, a spool valve is slidably housed in the valve housing hole, and a primary pressure chamber is formed at one end of the spool valve into which the discharge pressure of the pump is directly introduced. A secondary pressure chamber is formed at the other end into which the supply pressure of the supply path to the power steering after being throttled by the main orifice is introduced, and the spool valve is slid based on the pressure difference between these pressure chambers. In the flow control valve of the pump, which is configured to dynamically control the amount of excess oil returned to the suction part of the pump to increase or decrease it, and to control the amount of oil and oil pressure supplied to the power steering, the opening end of the valve housing hole. A discharge passage is bored in the pump body from the vicinity, and the inner end faces the discharge chamber of the pump and the outer end faces the supply passage to the power steering,
A main orifice is formed in the discharge passage, and the discharge oil of the pump is introduced from the discharge passage to the supply passage through the main orifice to be supplied to the power steering, and on the open end side of the valve housing hole, A flow control valve for a pump, characterized in that a secondary pressure chamber is formed into which supply pressure downstream of the main orifice is introduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17405785U JPS6282389U (en) | 1985-11-12 | 1985-11-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17405785U JPS6282389U (en) | 1985-11-12 | 1985-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6282389U true JPS6282389U (en) | 1987-05-26 |
Family
ID=31112098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17405785U Pending JPS6282389U (en) | 1985-11-12 | 1985-11-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6282389U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014074A (en) * | 2008-07-07 | 2010-01-21 | Hitachi Automotive Systems Ltd | Pumping device |
| JP2010196682A (en) * | 2009-02-27 | 2010-09-09 | Kayaba Ind Co Ltd | Vane pump |
-
1985
- 1985-11-12 JP JP17405785U patent/JPS6282389U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014074A (en) * | 2008-07-07 | 2010-01-21 | Hitachi Automotive Systems Ltd | Pumping device |
| JP2010196682A (en) * | 2009-02-27 | 2010-09-09 | Kayaba Ind Co Ltd | Vane pump |
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