JPS54153974A - Oil pressure circuit for controlling plurality of oil pressure apparatus - Google Patents
Oil pressure circuit for controlling plurality of oil pressure apparatusInfo
- Publication number
- JPS54153974A JPS54153974A JP6168678A JP6168678A JPS54153974A JP S54153974 A JPS54153974 A JP S54153974A JP 6168678 A JP6168678 A JP 6168678A JP 6168678 A JP6168678 A JP 6168678A JP S54153974 A JPS54153974 A JP S54153974A
- Authority
- JP
- Japan
- Prior art keywords
- pumps
- oil pressure
- oil discharged
- operating
- capacity
- 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
- Operation Control Of Excavators (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To operate actuators with much capacity by using pumps with little capacity, by driving a plurality of pumps by means of a plurality of engines, and by selectively feeding oil discharged from each pump to each actuator.
CONSTITUTION: When operating operating valves 61, 62, compressed oil discharged from first and third pumps P1, P3 is supplied to a right travelling motor 15R; when operating operating valves 71, 72, compressed oil discharged from second and third pumps P2, P3 is fed to a cylinder 16 for a boom. Thus, actuators with much capacity are worked by using pumps with little capacity and operating valves for little capacity and each actuator is operated even when one side engine stops because compressed oil discharged from at least two pumps is fed to one actuator through at least two operating valves.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6168678A JPS54153974A (en) | 1978-05-25 | 1978-05-25 | Oil pressure circuit for controlling plurality of oil pressure apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6168678A JPS54153974A (en) | 1978-05-25 | 1978-05-25 | Oil pressure circuit for controlling plurality of oil pressure apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54153974A true JPS54153974A (en) | 1979-12-04 |
Family
ID=13178385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6168678A Pending JPS54153974A (en) | 1978-05-25 | 1978-05-25 | Oil pressure circuit for controlling plurality of oil pressure apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54153974A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0289031U (en) * | 1988-12-23 | 1990-07-13 |
-
1978
- 1978-05-25 JP JP6168678A patent/JPS54153974A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0289031U (en) * | 1988-12-23 | 1990-07-13 |
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