GB1115194A - Improvements in gear pumps - Google Patents
Improvements in gear pumpsInfo
- Publication number
- GB1115194A GB1115194A GB28027/65A GB2802765A GB1115194A GB 1115194 A GB1115194 A GB 1115194A GB 28027/65 A GB28027/65 A GB 28027/65A GB 2802765 A GB2802765 A GB 2802765A GB 1115194 A GB1115194 A GB 1115194A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bores
- pressure
- passage
- pair
- bearing member
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/086—Carter
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Hydraulic Motors (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
1,115,194. Gear pumps and motors. ROBERT BOSCH G.m.b.H. July 2, 1965 [July 4, 1964], No.28027/65. Heading F1F. In a pressure-loaded gear pump or motor, bearing members or bodies 17, 18, Fig.1, are pressed against the sides of a pair of externallymeshing gears 13, 14 by pressure communicated to a recess or zone 24 at the back of each member through an axially-orientated passage 25 on the high-pressure side of the meshing gear-teeth, the recess being sealed by an O-ring 23. Each bearing member also includes a pair of blind bores (37, 38), Figs. 2 and 3 (not shown), which are in register with gear-tooth spaces upstream from the passage 25 and effect noise-reduction by serving as chambers wherein pressure fluctuations are dissipated. In a modification, Figs. 4 and 5, pairs of axially-orientated bores 39, 41 and 40, 42 in each bearing member are connected by further bores 43, 44 to the passage 25, the recess 24 thereby rendering the same service as the bores (37, 38). In a further modification, Fig. 6 to 8 (not shown), to effect noise reduction a pair of inclined bores (47, 48) in each bearing member intersect the passage 25 and are connected to one another by a groove (49) situated in the face of the member adjacent the gears to minimize cavitation in the tooth-spaces approaching the high-pressure side. Each bearing member includes a pair of slots 28, 29 to render radially pressure-loaded portions 30, 31 resilient.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1964B0077532 DE1528952A1 (en) | 1964-07-04 | 1964-07-04 | Gear machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1115194A true GB1115194A (en) | 1968-05-29 |
Family
ID=6979516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28027/65A Expired GB1115194A (en) | 1964-07-04 | 1965-07-02 | Improvements in gear pumps |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3313238A (en) |
| AT (1) | AT249513B (en) |
| DE (1) | DE1528952A1 (en) |
| FR (1) | FR1437150A (en) |
| GB (1) | GB1115194A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3904333A (en) * | 1974-05-22 | 1975-09-09 | Weatherhead Co | Pressure balancing system for gear pumps or motors |
| US4231726A (en) * | 1978-06-22 | 1980-11-04 | Caterpillar Tractor Co. | Gear pump having fluid deaeration capability |
| US4289460A (en) * | 1979-06-28 | 1981-09-15 | Chandler Evans Inc. | Bearing lubrication system for gear pump having clearance between bearing and housing wall for preventing entry of contaminants larger than lubrication passage |
| US4337018A (en) * | 1980-01-29 | 1982-06-29 | Commercial Shearing, Inc. | Rotary impeller pump or motor with counterbalancing chamber in thrust plate bearing counterbore |
| DE102013203764A1 (en) * | 2013-03-06 | 2014-09-25 | Robert Bosch Gmbh | Gear machine with elongated recess in the sealing surface between gear and housing |
| DE102016213636A1 (en) * | 2016-07-26 | 2018-02-01 | Robert Bosch Gmbh | External gear pump for a waste heat recovery system |
| CN109113986A (en) * | 2017-06-22 | 2019-01-01 | 江阴华欧德汽车动力系统研发有限公司 | Gear box oil pump and gearbox with emptying structure |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781730A (en) * | 1952-10-22 | 1957-02-19 | Thompson Prod Inc | Implement pump |
| US2887064A (en) * | 1953-09-21 | 1959-05-19 | Plessey Co Ltd | Rotary fluid displacement pump |
| US3043230A (en) * | 1956-06-30 | 1962-07-10 | Eckerle Otto | High pressure gear pump |
| US2972959A (en) * | 1957-03-26 | 1961-02-28 | Thompson Ramo Wooldridge Inc | Bearing plate for pressure loaded gear pumps |
| US2980028A (en) * | 1957-08-19 | 1961-04-18 | Thompson Ramo Wooldridge Inc | Gear pump journal and face lubrication |
| US3057303A (en) * | 1959-04-15 | 1962-10-09 | Clark Equipment Co | Pressure loaded gear pump |
| US3204564A (en) * | 1962-04-06 | 1965-09-07 | Daimler Benz Ag | Gear pump |
| US3174435A (en) * | 1962-08-16 | 1965-03-23 | Clark Equipment Co | Pump or motor |
-
1964
- 1964-07-04 DE DE1964B0077532 patent/DE1528952A1/en active Pending
-
1965
- 1965-05-12 AT AT431865A patent/AT249513B/en active
- 1965-06-15 FR FR20876A patent/FR1437150A/en not_active Expired
- 1965-07-02 GB GB28027/65A patent/GB1115194A/en not_active Expired
- 1965-07-06 US US470349A patent/US3313238A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3313238A (en) | 1967-04-11 |
| AT249513B (en) | 1966-09-26 |
| DE1528952A1 (en) | 1970-07-02 |
| FR1437150A (en) | 1966-04-29 |
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