JPS5593991A - Vane pump - Google Patents

Vane pump

Info

Publication number
JPS5593991A
JPS5593991A JP16479A JP16479A JPS5593991A JP S5593991 A JPS5593991 A JP S5593991A JP 16479 A JP16479 A JP 16479A JP 16479 A JP16479 A JP 16479A JP S5593991 A JPS5593991 A JP S5593991A
Authority
JP
Japan
Prior art keywords
rotor
thermal
expansive member
cam ring
temperature rise
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
JP16479A
Other languages
Japanese (ja)
Other versions
JPS628638B2 (en
Inventor
Kosaku Masuda
Haruo Okamoto
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.)
Jidosha Kiki Co Ltd
Original Assignee
Jidosha Kiki 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 Jidosha Kiki Co Ltd filed Critical Jidosha Kiki Co Ltd
Priority to JP16479A priority Critical patent/JPS5593991A/en
Publication of JPS5593991A publication Critical patent/JPS5593991A/en
Publication of JPS628638B2 publication Critical patent/JPS628638B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To prevent seizure of a rotor by providing on the outer surface of a cam ring a thermal-expansive member having a larger thermal expansion coefficient than that of the rotor to suppress the temperature rise by increasing the clearance between the rotor and the side plate when excessive temperature rise occured.
CONSTITUTION: Side plates 16 and 17 are located relative to a cam ring 18 by a pair of locating pins 21 and 22 and movable in the axial direction. A thermal-expansive member 24 having a larger thermal expansion coefficient then that of the rotor 13 is provided on the outer surface of the cam ring 18. The side plates 16 and 17 are closely fitted to the thermal-expansive member 24. As the temperature of the operating oil rises, the thermal-expansive member 24 expands to push the side plate 17 in the axial direction against the force of a spring 23 thus increasing the clearance (G) between the rotor 13 and the side plates 16 and 17, consequently, interrupting the pumping effect. Therefore seizure and defacement of the rotor 13 are prevented and undesirable temperature rise of the components of the pump is relieved.
COPYRIGHT: (C)1980,JPO&Japio
JP16479A 1979-01-08 1979-01-08 Vane pump Granted JPS5593991A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16479A JPS5593991A (en) 1979-01-08 1979-01-08 Vane pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16479A JPS5593991A (en) 1979-01-08 1979-01-08 Vane pump

Publications (2)

Publication Number Publication Date
JPS5593991A true JPS5593991A (en) 1980-07-16
JPS628638B2 JPS628638B2 (en) 1987-02-24

Family

ID=11466386

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16479A Granted JPS5593991A (en) 1979-01-08 1979-01-08 Vane pump

Country Status (1)

Country Link
JP (1) JPS5593991A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4328195Y1 (en) * 1964-04-23 1968-11-20
JPS5059804A (en) * 1973-09-24 1975-05-23
JPS51126505A (en) * 1975-04-26 1976-11-04 Shinpo Kogyo Kk Rotor case for type eluid machines
JPS5312603U (en) * 1976-07-15 1978-02-02

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5312603B2 (en) * 1973-07-16 1978-05-02

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4328195Y1 (en) * 1964-04-23 1968-11-20
JPS5059804A (en) * 1973-09-24 1975-05-23
JPS51126505A (en) * 1975-04-26 1976-11-04 Shinpo Kogyo Kk Rotor case for type eluid machines
JPS5312603U (en) * 1976-07-15 1978-02-02

Also Published As

Publication number Publication date
JPS628638B2 (en) 1987-02-24

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