JPS5620789A - Gear pump - Google Patents
Gear pumpInfo
- Publication number
- JPS5620789A JPS5620789A JP9564079A JP9564079A JPS5620789A JP S5620789 A JPS5620789 A JP S5620789A JP 9564079 A JP9564079 A JP 9564079A JP 9564079 A JP9564079 A JP 9564079A JP S5620789 A JPS5620789 A JP S5620789A
- Authority
- JP
- Japan
- Prior art keywords
- metals
- fluid
- excision
- peripheries
- pair
- 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
- Rotary Pumps (AREA)
Abstract
PURPOSE: To prevent fluid from being leaked from an excision surface and improve pump efficiency by introducing the exhaust fluid to a gap between a reverse part of the excision surfaces in which a pair of metal peripheries are excised to each other and press-welding a pair of metals to each other.
CONSTITUTION: A pair of metals 5 and 6 form each cylindrical peripheral surface and a part of these peripheries are excised by the surface which is parallel to an axial center. Those excision surfaces 9 and 10 are made contact to each other and fit in the metal fitting holes 12 and 13 of a casing 11. Gears 1 and 2 revolve toward an arrow and fluid is sent to an exhaust outlet 15 from a suction inlet 14. Gaps 5 and 6 are provided between the reverse parts 18a and 19a of the excision surfaces 9 and 10 for the peripheries 18 and 19 of the metals 5 and 6 and the walls for the metal fitting holes 12 and 13 of the casing 11. By making the discharge fluid flow in these gaps 16 and 17, the metals 5 and 6 are pushed to each other and the fluid is prevented from being leaked from the excision surfaces 9 and 10.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9564079A JPS5620789A (en) | 1979-07-26 | 1979-07-26 | Gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9564079A JPS5620789A (en) | 1979-07-26 | 1979-07-26 | Gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5620789A true JPS5620789A (en) | 1981-02-26 |
Family
ID=14143095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9564079A Pending JPS5620789A (en) | 1979-07-26 | 1979-07-26 | Gear pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5620789A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59114780U (en) * | 1983-01-19 | 1984-08-02 | 株式会社東芝 | dc motor |
| US20090304541A1 (en) * | 2006-05-30 | 2009-12-10 | Trw Automotive Gmbh | Gear pump, especially for a power steering system |
-
1979
- 1979-07-26 JP JP9564079A patent/JPS5620789A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59114780U (en) * | 1983-01-19 | 1984-08-02 | 株式会社東芝 | dc motor |
| JPH0343832Y2 (en) * | 1983-01-19 | 1991-09-13 | ||
| US20090304541A1 (en) * | 2006-05-30 | 2009-12-10 | Trw Automotive Gmbh | Gear pump, especially for a power steering system |
| US8303282B2 (en) * | 2006-05-30 | 2012-11-06 | Trw Automotive Gmbh | Gear pump for a power steering system |
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