JPS6424189A - Trochoidal type pump - Google Patents
Trochoidal type pumpInfo
- Publication number
- JPS6424189A JPS6424189A JP17603787A JP17603787A JPS6424189A JP S6424189 A JPS6424189 A JP S6424189A JP 17603787 A JP17603787 A JP 17603787A JP 17603787 A JP17603787 A JP 17603787A JP S6424189 A JPS6424189 A JP S6424189A
- Authority
- JP
- Japan
- Prior art keywords
- passage
- rotor
- auxiliary
- discharge
- main
- 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
Links
Landscapes
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
PURPOSE:To make it possible to control the discharge amount of a pump and to minimize the power loss by arranging plural rotors in parallel, furnishing a suction passage and an injection passage to each rotor, and providing a back flow check valve at the passage furnished to the rotor. CONSTITUTION:A main rotor 7 and an auxiliary rotor 8 are geared in parallel and rotatable freely. A main suction passage 3 and a main discharge passage 5 are arranged to the main rotor 7. An auxiliary suction passage 4 and an auxiliary discharge passage 6 are arranged to the auxiliary rotor 8. To a driving shaft 11, a spring 21 to press the driving shaft 11 against a pressure receiver 11a to receive the injection pressure is furnished. A back flow check valve 26 is furnished at the bend of the auxiliary discharge passage 6, and it closes the auxiliary discharge passage 6 by the decrease of the discharge pressure. In such a way, the discharge amount of the pump can be controlled, and the power loss is minimized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17603787A JPS6424189A (en) | 1987-07-16 | 1987-07-16 | Trochoidal type pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17603787A JPS6424189A (en) | 1987-07-16 | 1987-07-16 | Trochoidal type pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6424189A true JPS6424189A (en) | 1989-01-26 |
Family
ID=16006616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17603787A Pending JPS6424189A (en) | 1987-07-16 | 1987-07-16 | Trochoidal type pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6424189A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02153281A (en) * | 1988-12-06 | 1990-06-12 | Yamada Seisakusho:Kk | Trochoid type oil pump |
JP2009013590A (en) * | 2007-06-29 | 2009-01-22 | Hashimoto:Kk | Device for lifting and transporting side ditch cover |
JP2021025520A (en) * | 2019-08-01 | 2021-02-22 | 株式会社山田製作所 | Oil pump |
-
1987
- 1987-07-16 JP JP17603787A patent/JPS6424189A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02153281A (en) * | 1988-12-06 | 1990-06-12 | Yamada Seisakusho:Kk | Trochoid type oil pump |
JP2009013590A (en) * | 2007-06-29 | 2009-01-22 | Hashimoto:Kk | Device for lifting and transporting side ditch cover |
JP2021025520A (en) * | 2019-08-01 | 2021-02-22 | 株式会社山田製作所 | Oil pump |
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