JPS5715158A - Counterbalance valve device - Google Patents
Counterbalance valve deviceInfo
- Publication number
- JPS5715158A JPS5715158A JP9131680A JP9131680A JPS5715158A JP S5715158 A JPS5715158 A JP S5715158A JP 9131680 A JP9131680 A JP 9131680A JP 9131680 A JP9131680 A JP 9131680A JP S5715158 A JPS5715158 A JP S5715158A
- Authority
- JP
- Japan
- Prior art keywords
- spool
- throttle
- oil
- pilot passage
- oil pressure
- 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
- Safety Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To soften the impact generated at the power transmission part of a hydraulic motor by forming the throttle part for discharging the working oil having a fixed variation of oil pressure midway on the pilot passage for switching a counterbalance spool.
CONSTITUTION: Midway on the pilot passage 5 and 6 for switching a conterbalance spool 7 against springs 8 and 9, the throttle parts 22 and 23 for discharging the work oil having a fixed variation of oil pressure are formed on the downstream side from main throttle parts 20 and 21. During the spool 7 is in operation at position A, if the pressure in a line 3 varies momentarily and increases, the working oil having the variation of oil pressure is discharged into a tank 13 from the throttle part 22 of the pilot passage 5. Therefore, the spool 7 operates slowly, and throttle between lines 11 and 4 is released gently, and the impact generated at the power transmission part of a hydraulic motor 12 can be reduced.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9131680A JPS5715158A (en) | 1980-07-03 | 1980-07-03 | Counterbalance valve device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9131680A JPS5715158A (en) | 1980-07-03 | 1980-07-03 | Counterbalance valve device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5715158A true JPS5715158A (en) | 1982-01-26 |
Family
ID=14023051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9131680A Pending JPS5715158A (en) | 1980-07-03 | 1980-07-03 | Counterbalance valve device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5715158A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62100306U (en) * | 1985-12-16 | 1987-06-26 | ||
JPH01132063A (en) * | 1987-10-15 | 1989-05-24 | Toshiba Corp | Water circulation system |
JPH01140564A (en) * | 1987-10-15 | 1989-06-01 | Toshiba Corp | Ammonia removal device and method therefor |
JPH0290472A (en) * | 1987-10-15 | 1990-03-29 | Toshiba Corp | Method of removing ammonia |
JPH04312203A (en) * | 1991-04-05 | 1992-11-04 | Yanagisawa Seiki Seisakusho:Kk | Sub-valve for auxiliary hydraulic pressure |
CN102042273A (en) * | 2010-08-13 | 2011-05-04 | 长沙中联重工科技发展股份有限公司 | Hydraulic control loop and method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51137925A (en) * | 1975-05-24 | 1976-11-29 | Kawasaki Heavy Ind Ltd | Counter balance valve |
-
1980
- 1980-07-03 JP JP9131680A patent/JPS5715158A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51137925A (en) * | 1975-05-24 | 1976-11-29 | Kawasaki Heavy Ind Ltd | Counter balance valve |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62100306U (en) * | 1985-12-16 | 1987-06-26 | ||
JPH01132063A (en) * | 1987-10-15 | 1989-05-24 | Toshiba Corp | Water circulation system |
JPH01140564A (en) * | 1987-10-15 | 1989-06-01 | Toshiba Corp | Ammonia removal device and method therefor |
JPH0290472A (en) * | 1987-10-15 | 1990-03-29 | Toshiba Corp | Method of removing ammonia |
JPH04312203A (en) * | 1991-04-05 | 1992-11-04 | Yanagisawa Seiki Seisakusho:Kk | Sub-valve for auxiliary hydraulic pressure |
CN102042273A (en) * | 2010-08-13 | 2011-05-04 | 长沙中联重工科技发展股份有限公司 | Hydraulic control loop and method |
WO2012019498A1 (en) * | 2010-08-13 | 2012-02-16 | 长沙中联重工科技发展股份有限公司 | Hydraulic control circuit and method |
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