JPS6463675A - Pump device - Google Patents
Pump deviceInfo
- Publication number
- JPS6463675A JPS6463675A JP22087387A JP22087387A JPS6463675A JP S6463675 A JPS6463675 A JP S6463675A JP 22087387 A JP22087387 A JP 22087387A JP 22087387 A JP22087387 A JP 22087387A JP S6463675 A JPS6463675 A JP S6463675A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- bypass passage
- pump
- forward end
- suction tube
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
Abstract
PURPOSE:To aim at enhancing the suction efficiency of a pump by projecting the forward end cylindrical section of a suction tube forming a pump suction port, into a bypass passage so as to allow an excessive flow through the bypass passage to flow down in the axial direction of the suction tube. CONSTITUTION:A suction chamber 9 is formed between the upper inner wall of a pump housing 1 and a cam ring 5, and a pressure chamber 10 is formed between the cam ring 5 and the rear surface of a pressure plate 8. The suction chamber 9 is connected to the pressure chamber 10 through a passage 11, a recirculating port 12 and a bypass passage 13 having an intermediate section communicated with a pump suction port 15. In this arrangement, the forward end cylindrical part 21 of a suction tube 20 which forms the pump suction port 20 is projected into the bypass passage 13. Accordingly, an excessive flow through the bypass passage 13 is allowed to flow down along the outer periphery of the forward end cylindrical part 21 in the axial direction of the suction tube 20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22087387A JPS6463675A (en) | 1987-09-03 | 1987-09-03 | Pump device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22087387A JPS6463675A (en) | 1987-09-03 | 1987-09-03 | Pump device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6463675A true JPS6463675A (en) | 1989-03-09 |
Family
ID=16757874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22087387A Pending JPS6463675A (en) | 1987-09-03 | 1987-09-03 | Pump device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6463675A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007278258A (en) * | 2006-04-12 | 2007-10-25 | Kayaba Ind Co Ltd | Vane pump |
| JP2011132868A (en) * | 2009-12-24 | 2011-07-07 | Kyb Co Ltd | Vane pump |
| US20160123323A1 (en) * | 2013-06-04 | 2016-05-05 | Mikuni Corporation | Fluid pump |
| WO2017021118A1 (en) * | 2015-08-05 | 2017-02-09 | Robert Bosch Automotive Steering Gmbh | Positive displacement pump and hydraulic system |
-
1987
- 1987-09-03 JP JP22087387A patent/JPS6463675A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007278258A (en) * | 2006-04-12 | 2007-10-25 | Kayaba Ind Co Ltd | Vane pump |
| JP2011132868A (en) * | 2009-12-24 | 2011-07-07 | Kyb Co Ltd | Vane pump |
| US20160123323A1 (en) * | 2013-06-04 | 2016-05-05 | Mikuni Corporation | Fluid pump |
| EP3006739A4 (en) * | 2013-06-04 | 2016-12-07 | Mikuni Kogyo Kk | Fluid pump |
| US10041492B2 (en) * | 2013-06-04 | 2018-08-07 | Mikuni Corporation | Fluid pump having a return passage parallel to a suction passage |
| WO2017021118A1 (en) * | 2015-08-05 | 2017-02-09 | Robert Bosch Automotive Steering Gmbh | Positive displacement pump and hydraulic system |
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