GB1324248A - Rotary pumps - Google Patents
Rotary pumpsInfo
- Publication number
- GB1324248A GB1324248A GB1324248DA GB1324248A GB 1324248 A GB1324248 A GB 1324248A GB 1324248D A GB1324248D A GB 1324248DA GB 1324248 A GB1324248 A GB 1324248A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead oxide
- bronze
- matrix
- vanes
- stator
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2280/00—Materials; Properties thereof
- F05B2280/50—Intrinsic material properties or characteristics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
1324248 Rotary positive-displacement pumps BRITISH OXYGEN CO Ltd [trading as EDWARDS HIGH VACUUM INTERNATIONAL] 15 Feb 1972 [23 Nov 1970] 55691/70 Heading F1F A vacuum pump or compressor comprises a stator 2 with an inlet 10 and an outlet 12 and a rotor 4 with vanes 16 of self-lubricating material biased by centrifugal force into contact with the stator. The pump may be oil-sealed. The vanes may be of lead oxide and/or bronze and P.T.F.E. e.g., up to 20 per cent. The P.T.F.E. may be in small pockets in a matrix of lead oxide. Alternatively the vane material may comprise a matrix of P.T.F.E. with a filler of either or both lead oxide and bronze, or a matrix of either or both lead oxide and bronze with a filler of P.T.F.E.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5569170 | 1970-11-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1324248A true GB1324248A (en) | 1973-07-25 |
Family
ID=10474607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1324248D Expired GB1324248A (en) | 1970-11-23 | 1970-11-23 | Rotary pumps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1324248A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0019605A1 (en) * | 1979-05-16 | 1980-11-26 | Institut Cerac S.A. | A rotary vane machine |
EP0022103A1 (en) * | 1979-06-15 | 1981-01-07 | Institut Cerac S.A. | A rotary vane machine |
EP0240294A2 (en) * | 1986-04-04 | 1987-10-07 | Toyota Jidosha Kabushiki Kaisha | Fiber reinforced metal vanes for rotary compressor |
-
1970
- 1970-11-23 GB GB1324248D patent/GB1324248A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0019605A1 (en) * | 1979-05-16 | 1980-11-26 | Institut Cerac S.A. | A rotary vane machine |
EP0022103A1 (en) * | 1979-06-15 | 1981-01-07 | Institut Cerac S.A. | A rotary vane machine |
EP0240294A2 (en) * | 1986-04-04 | 1987-10-07 | Toyota Jidosha Kabushiki Kaisha | Fiber reinforced metal vanes for rotary compressor |
EP0240294A3 (en) * | 1986-04-04 | 1988-07-20 | Toyota Jidosha Kabushiki Kaisha | Fiber reinforced metal vanes for rotary compressor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |