JPS5590708A - Working-oil circuit of working vehicle - Google Patents

Working-oil circuit of working vehicle

Info

Publication number
JPS5590708A
JPS5590708A JP16392478A JP16392478A JPS5590708A JP S5590708 A JPS5590708 A JP S5590708A JP 16392478 A JP16392478 A JP 16392478A JP 16392478 A JP16392478 A JP 16392478A JP S5590708 A JPS5590708 A JP S5590708A
Authority
JP
Japan
Prior art keywords
working oil
circuit
circulating
temperature
working
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
Application number
JP16392478A
Other languages
Japanese (ja)
Inventor
Fumiharu Funabiki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kubota Corp filed Critical Kubota Corp
Priority to JP16392478A priority Critical patent/JPS5590708A/en
Publication of JPS5590708A publication Critical patent/JPS5590708A/en
Pending legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

PURPOSE: To raise the temperature of working oil in a short time, when the temperature is low, by the help of heat energy generated by the operation of actuators, by circulating the working oil through pumps and actuators in a by-pass way.
CONSTITUTION: The circuit of the 1st state circulating working oil from pumps P1 and P2 through a group of actuators to cooler 14 and tank 13 and the by-pass circuit of the 2nd state where the working oil by-passes cooler 14 and tank 13 are made to be selectable by changing flow route of valve system B by means of valves V, V. In the by-pass flow-circulating circuit is provided sensers 15 for detecting the temperature of working oil that flows in the circuit. Moreover, a solenoid system and the like for automatically controlling valve system B is provided so as to make the working oil flow through the flow-circulating circuit of the 1st state automatically and revercibly based on the information from the above-mentioned detecting sensers 15 about the temperature higher than the set level.
COPYRIGHT: (C)1980,JPO&Japio
JP16392478A 1978-12-26 1978-12-26 Working-oil circuit of working vehicle Pending JPS5590708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16392478A JPS5590708A (en) 1978-12-26 1978-12-26 Working-oil circuit of working vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16392478A JPS5590708A (en) 1978-12-26 1978-12-26 Working-oil circuit of working vehicle

Publications (1)

Publication Number Publication Date
JPS5590708A true JPS5590708A (en) 1980-07-09

Family

ID=15783399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16392478A Pending JPS5590708A (en) 1978-12-26 1978-12-26 Working-oil circuit of working vehicle

Country Status (1)

Country Link
JP (1) JPS5590708A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104556A1 (en) * 1982-09-28 1984-04-04 Deere & Company Switching device for a cooler for hydraulic fluids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0104556A1 (en) * 1982-09-28 1984-04-04 Deere & Company Switching device for a cooler for hydraulic fluids

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