JPS5773235A - Protective device in working oil pressre circuit of pressure oil clutch - Google Patents

Protective device in working oil pressre circuit of pressure oil clutch

Info

Publication number
JPS5773235A
JPS5773235A JP55149045A JP14904580A JPS5773235A JP S5773235 A JPS5773235 A JP S5773235A JP 55149045 A JP55149045 A JP 55149045A JP 14904580 A JP14904580 A JP 14904580A JP S5773235 A JPS5773235 A JP S5773235A
Authority
JP
Japan
Prior art keywords
oil
pressure
clutch
circuit
pressure oil
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
JP55149045A
Other languages
Japanese (ja)
Inventor
Tadao Nishihara
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.)
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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 Iseki and Co Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP55149045A priority Critical patent/JPS5773235A/en
Publication of JPS5773235A publication Critical patent/JPS5773235A/en
Pending legal-status Critical Current

Links

Landscapes

  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)

Abstract

PURPOSE: To prevent pump load in case of an impulsive rise in oil pressure by mounting an escape oil path at a supply stop boat of a clutch switching valve so that some of pressure oil in a pump can be returned to a tank through an oil path.
CONSTITUTION: A return oil path 9b is mounted on a supply stop boat 9 of a clutch switching valve 4 adapted to supply pressure oil to a clutch cylinder 6 of pressure oil clutch off and on. When the clutch switching valve 4 is located at an off-position, some of pressure oil in a pump 1 is returned to a tank 3 through the return oil path 9b. Even at off-state of the clutch, some of pressure oil is always exhausted by the escape oil path 9b to be used for lubrication of the devices of a working oil pressure circuit. When an impulsive rise in oil pressure occurs in the working oil pressure circuit, some of pressure oil escapes through the oil path 9b provided with a throttle 10, so that such impulsive oil pressure is softened.
COPYRIGHT: (C)1982,JPO&Japio
JP55149045A 1980-10-24 1980-10-24 Protective device in working oil pressre circuit of pressure oil clutch Pending JPS5773235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55149045A JPS5773235A (en) 1980-10-24 1980-10-24 Protective device in working oil pressre circuit of pressure oil clutch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55149045A JPS5773235A (en) 1980-10-24 1980-10-24 Protective device in working oil pressre circuit of pressure oil clutch

Publications (1)

Publication Number Publication Date
JPS5773235A true JPS5773235A (en) 1982-05-07

Family

ID=15466438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55149045A Pending JPS5773235A (en) 1980-10-24 1980-10-24 Protective device in working oil pressre circuit of pressure oil clutch

Country Status (1)

Country Link
JP (1) JPS5773235A (en)

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