JPH0285671U - - Google Patents
Info
- Publication number
- JPH0285671U JPH0285671U JP16593088U JP16593088U JPH0285671U JP H0285671 U JPH0285671 U JP H0285671U JP 16593088 U JP16593088 U JP 16593088U JP 16593088 U JP16593088 U JP 16593088U JP H0285671 U JPH0285671 U JP H0285671U
- Authority
- JP
- Japan
- Prior art keywords
- pilot
- hydraulic pressure
- fluid pressure
- control valve
- area
- 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
- 239000012530 fluid Substances 0.000 claims 5
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Servomotors (AREA)
- Control Of Fluid Pressure (AREA)
Description
第１図は本考案実施例の圧力制御装置Ａを適用
した後輪操舵装置の要部を示す構成説明図、第２
図は実施例装置のメイン制御弁を示す断面図であ
る。
１……パワーシリンダ、２Ｒ……右側メイン出
力回路、２Ｌ……左側メイン出力回路、４ａ……
メイン供給回路、４ｂ……サブ供給回路、６……
分流弁（分流部）、７……パイロツト制御弁、７
ｒ……右側ソレノイド、７ｌ……左側ソレノイド
、８……メイン制御弁、９Ｒ……右側パイロツト
出力回路、９Ｌ……左側パイロツト出力回路、８
３ａ……右側パイロツト液圧受圧面、８４ａ……
左側パイロツト液圧受圧面、８５ａ……フイード
バツク液圧受圧面、８６ａ……フイードバツク液
圧受圧面、Ｐ……ポンプ（液圧供給源）。
FIG. 1 is a configuration explanatory diagram showing the main parts of a rear wheel steering device to which the pressure control device A of the embodiment of the present invention is applied;
The figure is a sectional view showing the main control valve of the embodiment device. 1...Power cylinder, 2R...Right main output circuit, 2L...Left main output circuit, 4a...
Main supply circuit, 4b...Sub supply circuit, 6...
Diversion valve (diversion part), 7...Pilot control valve, 7
r...Right side solenoid, 7l...Left side solenoid, 8...Main control valve, 9R...Right side pilot output circuit, 9L...Left side pilot output circuit, 8
3a... Right side pilot hydraulic pressure receiving surface, 84a...
Left side pilot hydraulic pressure receiving surface, 85a... Feedback hydraulic pressure receiving surface, 86a... Feedback hydraulic pressure receiving surface, P... Pump (hydraulic pressure supply source).
Claims (1)
供給回路とに分流する分流部と、 前記サブ供給回路に接続され、ソレノイドの駆
動に基づき、ソレノイドの吸引力に比例したパイ
ロツト液圧をパイロツト出力回路に出力するパイ
ロツト制御弁と、 前記メイン供給回路とパイロツト出力回路及び
駆動装置に接続されるメイン出力回路とに接続さ
れ、前記パイロツト液圧とメイン供給回路からの
フイードバツク液圧との釣り合いに基づいて作動
して、前記パイロツト液圧に比例した出力液圧を
出力するメイン制御弁と、を備え、 前記メイン制御弁において、パイロツト液圧受
圧面の面積がフイードバツク液圧受圧面の面積よ
りも大きく形成されていることを特徴とする圧力
制御装置。[Claims for Utility Model Registration] A flow dividing section that divides hydraulic pressure from a hydraulic pressure supply source into a main supply circuit and a sub supply circuit; a pilot control valve that outputs a pilot hydraulic pressure proportional to the pilot output circuit to the pilot output circuit; a main control valve that operates based on balance with the feedback hydraulic pressure of the pilot fluid pressure and outputs an output fluid pressure proportional to the pilot fluid pressure, and in the main control valve, the area of the pilot fluid pressure receiving surface is controlled by the feedback fluid pressure. A pressure control device characterized in that the area is larger than the area of a hydraulic pressure receiving surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988165930U JPH0717636Y2 (en) | 1988-12-22 | 1988-12-22 | Pressure control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988165930U JPH0717636Y2 (en) | 1988-12-22 | 1988-12-22 | Pressure control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0285671U true JPH0285671U (en) | 1990-07-05 |
| JPH0717636Y2 JPH0717636Y2 (en) | 1995-04-26 |
Family
ID=31452861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988165930U Expired - Lifetime JPH0717636Y2 (en) | 1988-12-22 | 1988-12-22 | Pressure control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0717636Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07238985A (en) * | 1994-02-25 | 1995-09-12 | Nippon Muugu Kk | Damping device |
| JP2001026275A (en) * | 1999-05-11 | 2001-01-30 | Kayaba Ind Co Ltd | Steering control device for vehicle |
| JP2006151188A (en) * | 2004-11-29 | 2006-06-15 | Hitachi Constr Mach Co Ltd | Wheel type construction machine |
| JP2011508862A (en) * | 2008-01-07 | 2011-03-17 | バンダービルト ユニバーシティ | Solenoid valve assembly |
| JP2011121582A (en) * | 2009-12-09 | 2011-06-23 | Deere & Co | Steering control system combining electro-hydraulic and manually-actuated pilot pressure control valves for safe operation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244091A (en) * | 1975-10-02 | 1977-04-06 | Mirowski Mieczyslaw | Electrode device for preventing ventricle from finely moving and method of using same |
| JPS63293304A (en) * | 1987-05-26 | 1988-11-30 | Atsugi Motor Parts Co Ltd | Pressure control valve |
-
1988
- 1988-12-22 JP JP1988165930U patent/JPH0717636Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244091A (en) * | 1975-10-02 | 1977-04-06 | Mirowski Mieczyslaw | Electrode device for preventing ventricle from finely moving and method of using same |
| JPS63293304A (en) * | 1987-05-26 | 1988-11-30 | Atsugi Motor Parts Co Ltd | Pressure control valve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07238985A (en) * | 1994-02-25 | 1995-09-12 | Nippon Muugu Kk | Damping device |
| JP2001026275A (en) * | 1999-05-11 | 2001-01-30 | Kayaba Ind Co Ltd | Steering control device for vehicle |
| JP2006151188A (en) * | 2004-11-29 | 2006-06-15 | Hitachi Constr Mach Co Ltd | Wheel type construction machine |
| JP2011508862A (en) * | 2008-01-07 | 2011-03-17 | バンダービルト ユニバーシティ | Solenoid valve assembly |
| JP2011121582A (en) * | 2009-12-09 | 2011-06-23 | Deere & Co | Steering control system combining electro-hydraulic and manually-actuated pilot pressure control valves for safe operation |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0717636Y2 (en) | 1995-04-26 |