GB1067552A - Improvements relating to gear pumps - Google Patents
Improvements relating to gear pumpsInfo
- Publication number
- GB1067552A GB1067552A GB4656762A GB4656762A GB1067552A GB 1067552 A GB1067552 A GB 1067552A GB 4656762 A GB4656762 A GB 4656762A GB 4656762 A GB4656762 A GB 4656762A GB 1067552 A GB1067552 A GB 1067552A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bushes
- bores
- gears
- necks
- adjacent
- 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.)
- Expired
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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0023—Axial sealings for working fluid
- F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
-
- 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
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0046—Internal leakage control
-
- 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
- F04C2220/00—Application
- F04C2220/40—Pumps with means for venting areas other than the working chamber, e.g. bearings, gear chambers, shaft seals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
1,067,552. Gear pumps. DOWTY HYDRAULIC UNITS Ltd. March 10, 1964 [Dec.10, 1962], No.46567/62. Heading F1F. A high pressure gear pump comprises a housing 11, Fig.1, having a pair of cylindrical overlapping bores 12, 13 and intermeshing gears 17, 18 which rotate in bearing bushes 22, 26 and 23, 27 slidable in the bores, have mating surfaces at the intersection of the bores and together with the gears axial clearances between the bottom of the bores, and the housing cover 15. The bushes 22, 23 shown closed at their ends, adjacent the bottoms of the bores are formed with necks 37, 41, Fig. 2, surrounded by the sealing rings 38, 42, with the necks shaped so that their profiles are nearest the bored peripheries adjacent the pump inlet 9. The closed ends of the bushes 22, 23 and the spaces within the rings 38, 42 are connected to the pump inlet 9 whilst the space 43 surrounding the rings is connected to pump delivery. The positioning of the necks and the areas of the spaces within and outside the sealing rings is determined so that the pressures acting on the ends of the bushes overcomes the graduated pressure between the pump inlet to the pump outlet acting on the faces of the bushes adjacent the gears to urge the bushes without tilting into sealing engagement with the gears. In a modification the bottom of the housing is constituted by a separate member. In another modification, the necks 37, 41 are made cylindrical but eccentrically disposed in relation to the axes of the respective gears. The bushes 22, 23 may be open at their ends adjacent the bottom of the housing bores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4656762A GB1067552A (en) | 1962-12-10 | 1962-12-10 | Improvements relating to gear pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4656762A GB1067552A (en) | 1962-12-10 | 1962-12-10 | Improvements relating to gear pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1067552A true GB1067552A (en) | 1967-05-03 |
Family
ID=10441751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4656762A Expired GB1067552A (en) | 1962-12-10 | 1962-12-10 | Improvements relating to gear pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1067552A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3752608A (en) * | 1970-11-28 | 1973-08-14 | Lucas Industries Ltd | Bearing for pumps |
| FR2290588A1 (en) * | 1974-11-08 | 1976-06-04 | Daido Metal Co | GEAR PUMP |
| FR2831222A1 (en) * | 2001-10-24 | 2003-04-25 | Pierburg | Gear pump, has driven gear fitted with cylindrical discs located in pump housing and cover cavities and held under pressure by pumped fluid |
| WO2018114080A1 (en) * | 2016-12-21 | 2018-06-28 | Robert Bosch Gmbh | Gearwheel pump for a waste heat recovery system |
-
1962
- 1962-12-10 GB GB4656762A patent/GB1067552A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3752608A (en) * | 1970-11-28 | 1973-08-14 | Lucas Industries Ltd | Bearing for pumps |
| FR2290588A1 (en) * | 1974-11-08 | 1976-06-04 | Daido Metal Co | GEAR PUMP |
| US4005952A (en) * | 1974-11-08 | 1977-02-01 | Daido Metal Company, Ltd. | Gear pump |
| FR2831222A1 (en) * | 2001-10-24 | 2003-04-25 | Pierburg | Gear pump, has driven gear fitted with cylindrical discs located in pump housing and cover cavities and held under pressure by pumped fluid |
| WO2003036092A1 (en) * | 2001-10-24 | 2003-05-01 | Pierburg Sarl | Flanged gear pump |
| US7144234B2 (en) | 2001-10-24 | 2006-12-05 | Pierburg, Sarl | Flanged gear pump |
| WO2018114080A1 (en) * | 2016-12-21 | 2018-06-28 | Robert Bosch Gmbh | Gearwheel pump for a waste heat recovery system |
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