GB880816A - Improvements in positive displacement rotary hydraulic machines - Google Patents
Improvements in positive displacement rotary hydraulic machinesInfo
- Publication number
- GB880816A GB880816A GB6822/59A GB682259A GB880816A GB 880816 A GB880816 A GB 880816A GB 6822/59 A GB6822/59 A GB 6822/59A GB 682259 A GB682259 A GB 682259A GB 880816 A GB880816 A GB 880816A
- Authority
- GB
- United Kingdom
- Prior art keywords
- passages
- pump
- bushes
- whilst
- 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.)
- 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
- 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
- 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
- F04C2240/00—Components
- F04C2240/50—Bearings
- F04C2240/56—Bearing bushings or details thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Hydraulic Motors (AREA)
Abstract
880,816. Gear pumps and motors. BOSCH G.m.b.H., ROBERT. Feb. 27, 1959 [Feb. 28, 1958; Dec. 23, 1958], No. 6822/59. Class 110 (2). In a gear pump, Figs. 1 and 3, having fluid pressure-loaded bushes 2, 3, the bushes are provided with passages 19, 20, 23, 30, 33, 34, 35, whilst the pump casing is provided with interconnected passages 14, 15. Annular grooves are cut in the end faces of the bushes to define portions 29, 30 in communication with the outlet and inlet side of the pump respectively. The portion 29 is connected to the pressure side of the pump through longitudinal grooves in the bushes, (see Fig. 2, not shown), whilst the portion 30 communicates with the inlet side of the pump through the passages 23, 20, 19, 33, 34, 35. The passage 35 is connected by bores 39, 40 to the passages 14, 15 whilst the latter is connected to its opposite space by a passage 43. In a modification, Figs. 4, 5 and 6 (not shown), the end plate packings enclose three pressure surfaces 70, 71, 72 communicating with passages 73, 74, 75 in the bearings. In a further modification, Fig. 7, an intermediate plate 87 is disposed between the bearing member 58<SP>1</SP> and the casing 51<SP>1</SP>, the said plate being divided by an annular packing 90 into inner and outer pressure chambers connected to sources of intermediate and outlet pressures respectively.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE880816X | 1958-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB880816A true GB880816A (en) | 1961-10-25 |
Family
ID=6825336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6822/59A Expired GB880816A (en) | 1958-02-28 | 1959-02-27 | Improvements in positive displacement rotary hydraulic machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB880816A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160928A (en) * | 1984-06-21 | 1986-01-02 | Dowty Hydraulic Units Ltd | Pressure balancing in rotary positive-displacement machines |
| WO2018114932A3 (en) * | 2016-12-21 | 2018-08-23 | Robert Bosch Gmbh | External gear pump for a waste heat recovery system with an annular channel for cooling the slide bearings |
-
1959
- 1959-02-27 GB GB6822/59A patent/GB880816A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160928A (en) * | 1984-06-21 | 1986-01-02 | Dowty Hydraulic Units Ltd | Pressure balancing in rotary positive-displacement machines |
| US4606713A (en) * | 1984-06-21 | 1986-08-19 | Dowty Hydraulic Units Limited | Rotary positive-displacement fluid-pressure machines |
| WO2018114932A3 (en) * | 2016-12-21 | 2018-08-23 | Robert Bosch Gmbh | External gear pump for a waste heat recovery system with an annular channel for cooling the slide bearings |
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