GB1476689A - Rotary pump of tee vane type having slipper type pumping vanes - Google Patents
Rotary pump of tee vane type having slipper type pumping vanesInfo
- Publication number
- GB1476689A GB1476689A GB3434474A GB3434474A GB1476689A GB 1476689 A GB1476689 A GB 1476689A GB 3434474 A GB3434474 A GB 3434474A GB 3434474 A GB3434474 A GB 3434474A GB 1476689 A GB1476689 A GB 1476689A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ports
- arc
- vane
- decompression
- slipper
- 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
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
1476689 Rotary positive-displacement fluidmachines TRW Inc 5 Aug 1974 [14 Aug 1973] 34344/74 Heading F1F In a double-acting slipper-vane pump suitable for a power steering system the profile of the inner circumferential surface, or "cam contour", 40 of the casing comprises a "decompression arc" 32 at the leading end of each "inlet arc" 31 and extending between a corresponding "tangent arc" 30 and an adjacent inlet port 28, the spacing of the vanes being such that at least one vane is in register with the tangent arc at all times. The decompression arcs are said to reduce cavitation and also noise due to turbulence created by each vane as it passes between the outlet ports 27 and the inlet ports. Preferably, each decompression arc subtends at the central axis an angle of 10 degrees Œ ¢ to 1 degree, the angles subtended by the other arcs and the ports being as shown. The ports 27, 28 are formed in a housing end-plate, matching ports being formed in an opposite end-plate, Fig. 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US38719373A | 1973-08-09 | 1973-08-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1476689A true GB1476689A (en) | 1977-06-16 |
Family
ID=23528875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3434474A Expired GB1476689A (en) | 1973-08-09 | 1974-08-05 | Rotary pump of tee vane type having slipper type pumping vanes |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE2438228A1 (en) |
| ES (1) | ES429139A1 (en) |
| FR (1) | FR2241010B1 (en) |
| GB (1) | GB1476689A (en) |
| IT (1) | IT1019845B (en) |
-
1974
- 1974-08-05 GB GB3434474A patent/GB1476689A/en not_active Expired
- 1974-08-08 FR FR7427588A patent/FR2241010B1/fr not_active Expired
- 1974-08-08 DE DE19742438228 patent/DE2438228A1/en not_active Withdrawn
- 1974-08-09 ES ES74429139A patent/ES429139A1/en not_active Expired
- 1974-08-09 IT IT2618674A patent/IT1019845B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| ES429139A1 (en) | 1977-02-16 |
| DE2438228A1 (en) | 1975-02-20 |
| FR2241010A1 (en) | 1975-03-14 |
| IT1019845B (en) | 1977-11-30 |
| FR2241010B1 (en) | 1979-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |