JPS5572925A - Control device for working oil temperature of hydraulic joint - Google Patents
Control device for working oil temperature of hydraulic jointInfo
- Publication number
- JPS5572925A JPS5572925A JP14421578A JP14421578A JPS5572925A JP S5572925 A JPS5572925 A JP S5572925A JP 14421578 A JP14421578 A JP 14421578A JP 14421578 A JP14421578 A JP 14421578A JP S5572925 A JPS5572925 A JP S5572925A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- oil
- comparator
- flow
- detector
- 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
- Lifting Devices For Agricultural Implements (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE: To keep working oil temperature within a fixed range and prevent deterioration by connecting temperature detector and temperature-setting device with comparator and, using the comparator, opening flow-controlling valve when working oil temperature detected by the comparator exceeds the set value.
CONSTITUTION: Flow-controlling valve 5 is provided between warking oil supply pump 7 and rubber 1 in the circuit of working oil of hydraulic joint F, and temperature detector 2 is fitted for detecting working-oil temperature on the side of outlet of operating oil (e.g. scooping tube). Temperature detector 2 is connected electrically with comparator 4 through amplifier 6, while electrical connection of warking- oil temperature setting device 3 and also connection of flow-controlling valve 5 are made with comparator 4 respectively. When the temperature of oil rises, the value thereof is detected by detector 2 and amplified by amplifier 6. When the temperature of oil exceeds the set temperature, a signal is given by comparator 4 and the opening of flow-controlling balve is enlarged, which increases flow of oil and thus lowers its temperature.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14421578A JPS5572925A (en) | 1978-11-24 | 1978-11-24 | Control device for working oil temperature of hydraulic joint |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14421578A JPS5572925A (en) | 1978-11-24 | 1978-11-24 | Control device for working oil temperature of hydraulic joint |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5572925A true JPS5572925A (en) | 1980-06-02 |
Family
ID=15356907
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14421578A Pending JPS5572925A (en) | 1978-11-24 | 1978-11-24 | Control device for working oil temperature of hydraulic joint |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5572925A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5857521A (en) * | 1981-09-30 | 1983-04-05 | Hitachi Ltd | Controller for hydraulic oil for variable fluid coupling |
JPS6365822U (en) * | 1986-10-20 | 1988-04-30 | ||
JPH02245523A (en) * | 1989-03-17 | 1990-10-01 | Hitachi Ltd | Variable speed fluid transmission |
-
1978
- 1978-11-24 JP JP14421578A patent/JPS5572925A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5857521A (en) * | 1981-09-30 | 1983-04-05 | Hitachi Ltd | Controller for hydraulic oil for variable fluid coupling |
JPS6365822U (en) * | 1986-10-20 | 1988-04-30 | ||
JPH0526265Y2 (en) * | 1986-10-20 | 1993-07-02 | ||
JPH02245523A (en) * | 1989-03-17 | 1990-10-01 | Hitachi Ltd | Variable speed fluid transmission |
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