JPS5593991A - Vane pump - Google Patents
Vane pumpInfo
- 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
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
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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5312603B2 (en) * | 1973-07-16 | 1978-05-02 |
-
1979
- 1979-01-08 JP JP16479A patent/JPS5593991A/en active Granted
Patent Citations (4)
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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