JPS54149002A - Gear pump - Google Patents
Gear pumpInfo
- Publication number
- JPS54149002A JPS54149002A JP5697178A JP5697178A JPS54149002A JP S54149002 A JPS54149002 A JP S54149002A JP 5697178 A JP5697178 A JP 5697178A JP 5697178 A JP5697178 A JP 5697178A JP S54149002 A JPS54149002 A JP S54149002A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- tooth space
- discharge port
- oil
- oil pressure
- 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
Abstract
PURPOSE: To prevent errosion due to cavitation by raising the pressure in the tooth space nearly to the ejection pressure prior to the opening of the speed slot in the tooth space.
CONSTITUTION: Oil pressure drawn into suction port 19 by the rotation of gears 12 and 13 is discharge from discharge port 18, but low oil pressure drawn from suction port 19 enters the low pressure area via inlet 21. On the other hand, high pressure oil on the side of discharge port 18 enters the high pressure area and at the same time it adjusts, via speed slot 17, the pressure distributions between the side surfaces of gears 12 and 13 and bush 14. Further, small diameter hole 23 is formed on bush 14, and its other end is connected to the accumulator chamber. Consequently, the tooth space containing low oil pressure is maintained nearly at the same pressure as that on the side of discharge port 18 by the oil pressure of the accumulator chamber; and as a result, the pressure inside the tooth space is gradually raised.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5697178A JPS54149002A (en) | 1978-05-13 | 1978-05-13 | Gear pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5697178A JPS54149002A (en) | 1978-05-13 | 1978-05-13 | Gear pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54149002A true JPS54149002A (en) | 1979-11-21 |
JPS6146666B2 JPS6146666B2 (en) | 1986-10-15 |
Family
ID=13042401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5697178A Granted JPS54149002A (en) | 1978-05-13 | 1978-05-13 | Gear pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54149002A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59190488A (en) * | 1983-04-11 | 1984-10-29 | Tochigi Fuji Ind Co Ltd | Gear pump |
JPH0245670A (en) * | 1988-08-05 | 1990-02-15 | Niigata Converter Kk | Low noise gear pump |
EP2986854A1 (en) * | 2013-04-17 | 2016-02-24 | Nag-Bok Lim | A silent gear pump or motor suppressing troubles of trapping fluid |
CN110273834A (en) * | 2018-03-16 | 2019-09-24 | 艾可勒科技公司 | Gear fluids machine |
-
1978
- 1978-05-13 JP JP5697178A patent/JPS54149002A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59190488A (en) * | 1983-04-11 | 1984-10-29 | Tochigi Fuji Ind Co Ltd | Gear pump |
JPH0245670A (en) * | 1988-08-05 | 1990-02-15 | Niigata Converter Kk | Low noise gear pump |
EP2986854A1 (en) * | 2013-04-17 | 2016-02-24 | Nag-Bok Lim | A silent gear pump or motor suppressing troubles of trapping fluid |
EP2986854A4 (en) * | 2013-04-17 | 2017-04-05 | Nag-Bok Lim | A silent gear pump or motor suppressing troubles of trapping fluid |
US9945230B2 (en) | 2013-04-17 | 2018-04-17 | Nag-Bok Lim | Silent gear pump or motor suppressing troubles of trapping fluid |
CN110273834A (en) * | 2018-03-16 | 2019-09-24 | 艾可勒科技公司 | Gear fluids machine |
CN110273834B (en) * | 2018-03-16 | 2020-12-15 | 艾可勒科技公司 | Gear wheel body machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6146666B2 (en) | 1986-10-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS55107093A (en) | Enclosed type scroll compressor | |
EP0301886A3 (en) | Variable discharge gear pump with energy recovery | |
JPS54149002A (en) | Gear pump | |
PT98129A (en) | PERFORATED GEAR ROTOR PUMP | |
JPS56146081A (en) | Fluid pump | |
JPS5722455A (en) | Oil pump of automatic transmission gear | |
JPS56143384A (en) | Variable-capacity vane pump | |
JPS52138704A (en) | Fluid pump | |
JPS52132403A (en) | Oil pump | |
JPS5773203A (en) | Oil pressure circuit | |
JPS57114762A (en) | Power steering gear with variable capacity pump | |
JPS532704A (en) | Preventing unit of thrust in driving shaft of vane type pump and liquid pressure motor | |
JPS5620788A (en) | Variable capacity type trochoid pump motor | |
JPS5517650A (en) | Geared motor pump | |
JPS56151295A (en) | Geared pump or motor | |
JPS5759088A (en) | Vane pump | |
JPS52115404A (en) | Fluid pump and motor | |
JPS5692394A (en) | Barrel-type multistage fluid machine | |
JPS6466482A (en) | Variable type oil pump | |
JPS5759089A (en) | Vane pump | |
JPS56154186A (en) | Protection device for hydraulic pump in oil pressure-operated device | |
JPS5546077A (en) | Helical type trochoid pump or blower | |
JPS54100510A (en) | Screw type gas compressor | |
GB1313340A (en) | Positive-displacement gaseous pump | |
JPS5688985A (en) | Fluid pump |