JPS5551984A - Hydraulic pump - Google Patents

Hydraulic pump

Info

Publication number
JPS5551984A
JPS5551984A JP12393378A JP12393378A JPS5551984A JP S5551984 A JPS5551984 A JP S5551984A JP 12393378 A JP12393378 A JP 12393378A JP 12393378 A JP12393378 A JP 12393378A JP S5551984 A JPS5551984 A JP S5551984A
Authority
JP
Japan
Prior art keywords
oil
plate
contact face
oil leak
sub
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
Application number
JP12393378A
Other languages
Japanese (ja)
Other versions
JPS6146667B2 (en
Inventor
Minoru Kawabata
Ryuichi Yamada
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.)
Toyoda Koki KK
Original Assignee
Toyoda Koki KK
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 Toyoda Koki KK filed Critical Toyoda Koki KK
Priority to JP12393378A priority Critical patent/JPS5551984A/en
Publication of JPS5551984A publication Critical patent/JPS5551984A/en
Publication of JPS6146667B2 publication Critical patent/JPS6146667B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

PURPOSE: To improve pump efficiency by sintering the contact face of two plates produced by sintered metal which allows no oil leak.
CONSTITUTION: A pressure plate 15 and sub-plate 16 on one side of a cum ring 17 are produced by sintered metal. Each one-side face of the plates is made in contact to sinter so that oil from a discharge port 26 is fed under pressure to an outlet 40 and another oil bypassing from a flow control valve 35 is fed back to a suction port 24 without oil leak. Pump efficiency can be improved because oil leak from the contact face can be prevented without need of wrapping on the contact face of the pressure plate 15 and the sub-plate 16.
COPYRIGHT: (C)1980,JPO&Japio
JP12393378A 1978-10-06 1978-10-06 Hydraulic pump Granted JPS5551984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12393378A JPS5551984A (en) 1978-10-06 1978-10-06 Hydraulic pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12393378A JPS5551984A (en) 1978-10-06 1978-10-06 Hydraulic pump

Publications (2)

Publication Number Publication Date
JPS5551984A true JPS5551984A (en) 1980-04-16
JPS6146667B2 JPS6146667B2 (en) 1986-10-15

Family

ID=14872936

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12393378A Granted JPS5551984A (en) 1978-10-06 1978-10-06 Hydraulic pump

Country Status (1)

Country Link
JP (1) JPS5551984A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02105591U (en) * 1988-10-20 1990-08-22

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02105591U (en) * 1988-10-20 1990-08-22

Also Published As

Publication number Publication date
JPS6146667B2 (en) 1986-10-15

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