JPS5740105A - Hydraulic pressure circuit controller - Google Patents
Hydraulic pressure circuit controllerInfo
- Publication number
- JPS5740105A JPS5740105A JP11585780A JP11585780A JPS5740105A JP S5740105 A JPS5740105 A JP S5740105A JP 11585780 A JP11585780 A JP 11585780A JP 11585780 A JP11585780 A JP 11585780A JP S5740105 A JPS5740105 A JP S5740105A
- Authority
- JP
- Japan
- Prior art keywords
- switching valve
- pressure circuit
- valve
- hydraulic pressure
- actuator
- 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
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To enable a load to be transferred smoothly, by closing a switching valve in case an actuator is in recess and an operational device is in the neutral position and opening said valve in other cases.
CONSTITUTION: Those outputs from a swash plate angle detecting deflection gauge 10 and operation lever 11 are applied to the swash plate drive and a solenoid switching controller 12, respectively, in a hydraulic pressure circuit composed of a hydraulic cylinder 2 acting as an actuator, a variable ejection capacity hydraulic pump 1 and a switching valve 9. The solenoid switching valve 9 is closed in case the following two conditions ar satisfied, while the one condition is that the hydraulic cylinder 2 is in recess and the other is that the operation lever 11 is in the neutral position, and said valve is opened in other cases. This constitution can serve to provide smooth transfer of a load by preventing generation of any pressure enclosed in the hydraulic pressure circuit and also to eliminate all useless actions of the switching valve 9.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11585780A JPS5740105A (en) | 1980-08-25 | 1980-08-25 | Hydraulic pressure circuit controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11585780A JPS5740105A (en) | 1980-08-25 | 1980-08-25 | Hydraulic pressure circuit controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5740105A true JPS5740105A (en) | 1982-03-05 |
JPS6352243B2 JPS6352243B2 (en) | 1988-10-18 |
Family
ID=14672853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11585780A Granted JPS5740105A (en) | 1980-08-25 | 1980-08-25 | Hydraulic pressure circuit controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5740105A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121953A (en) * | 1984-07-06 | 1986-01-30 | 電気化学工業株式会社 | Mortar or concrete member |
JPS6121951A (en) * | 1984-07-06 | 1986-01-30 | 電気化学工業株式会社 | Super high strength internal pressure pipe |
JPS6121952A (en) * | 1984-07-06 | 1986-01-30 | 電気化学工業株式会社 | Super high strength internal pressure pipe |
JPS6121950A (en) * | 1984-07-06 | 1986-01-30 | 電気化学工業株式会社 | High strength mortar or concrete member |
-
1980
- 1980-08-25 JP JP11585780A patent/JPS5740105A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6121953A (en) * | 1984-07-06 | 1986-01-30 | 電気化学工業株式会社 | Mortar or concrete member |
JPS6121951A (en) * | 1984-07-06 | 1986-01-30 | 電気化学工業株式会社 | Super high strength internal pressure pipe |
JPS6121952A (en) * | 1984-07-06 | 1986-01-30 | 電気化学工業株式会社 | Super high strength internal pressure pipe |
JPS6121950A (en) * | 1984-07-06 | 1986-01-30 | 電気化学工業株式会社 | High strength mortar or concrete member |
Also Published As
Publication number | Publication date |
---|---|
JPS6352243B2 (en) | 1988-10-18 |
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