GB1140452A - Improvements relating to liquid sealed mechanical vacuum pumps - Google Patents
Improvements relating to liquid sealed mechanical vacuum pumpsInfo
- Publication number
- GB1140452A GB1140452A GB11533/66A GB1153366A GB1140452A GB 1140452 A GB1140452 A GB 1140452A GB 11533/66 A GB11533/66 A GB 11533/66A GB 1153366 A GB1153366 A GB 1153366A GB 1140452 A GB1140452 A GB 1140452A
- Authority
- GB
- United Kingdom
- Prior art keywords
- duct
- pump
- recess
- flap
- noise
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
- F04C29/128—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type of the elastic type, e.g. reed valves
-
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/02—Liquid sealing for high-vacuum pumps or for compressors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
Abstract
1,140,452. Rotary vacuum-pumps. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. March 10, 1967 [March 16, 19661, No.11533/66. Heading F1F. In a rotary vacuum-pump of the outwardlysliding radial-vane type, noise generated by compression of sealing liquid e.g. oil, 8, Fig. 1, in and adjacent to an outlet duct 7 is suppressed by a ring 10 that is lodged in the wall of said duct and made of resilient pressure-energy absorbing material, e.g. foamed rubber or synthetic plastics material. The duct 7 is controlled by a valve comprising a flexible flap 5 that is clamped against the body 1 of the pump by a rigid plate 6 and made of either a synthetic plastics material or an elastomeric one; and, alternatively, said noise may be suppressed by air in a closed pocket (11), Fig. 2 (not shown), which is formed within said flap in register with said duct, the ring 10 being dispensed with. In another embodiment, Fig. 3, the noise aforesaid is suppresed by air within a recess 13 that is formed in the plate 6 in alignment with a similar recess within the body of the pump, the latter recess being separated from the former one by the flap 5 and connected to the duct 7 by a passage 14. Atmospheric air enters the recess 13 through a pipe 15. In each embodiment, the pump is sealed by being immersed in oil 2.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB11533/66A GB1140452A (en) | 1966-03-16 | 1966-03-16 | Improvements relating to liquid sealed mechanical vacuum pumps |
US622816A US3421688A (en) | 1966-03-16 | 1967-03-13 | Liquid sealed mechanical vacuum pumps |
DE19671628252 DE1628252A1 (en) | 1966-03-16 | 1967-03-14 | Vacuum pump with liquid seal and device for eliminating noise for such a pump |
FR99126A FR1514763A (en) | 1966-03-16 | 1967-03-16 | Anti-noise device for vacuum pumps and vacuum pumps fitted with said device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB11533/66A GB1140452A (en) | 1966-03-16 | 1966-03-16 | Improvements relating to liquid sealed mechanical vacuum pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1140452A true GB1140452A (en) | 1969-01-22 |
Family
ID=9987989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11533/66A Expired GB1140452A (en) | 1966-03-16 | 1966-03-16 | Improvements relating to liquid sealed mechanical vacuum pumps |
Country Status (4)
Country | Link |
---|---|
US (1) | US3421688A (en) |
DE (1) | DE1628252A1 (en) |
FR (1) | FR1514763A (en) |
GB (1) | GB1140452A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2555674A1 (en) * | 1983-11-30 | 1985-05-31 | Cit Alcatel | PALLET OIL SEAL PUMP |
GB2150641A (en) * | 1983-12-05 | 1985-07-03 | Walbro Corp | Rotary pump |
US4714416A (en) * | 1984-07-26 | 1987-12-22 | Matsushita Electric Industrial Co., Ltd. | Quiet running compressor |
EP0921315A3 (en) * | 1997-12-08 | 2000-05-03 | Carrier Corporation | Compressor discharge port with valve |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497135A (en) * | 1968-04-23 | 1970-02-24 | Copeland Refrigeration Corp | Noise control for hermetic motor compressors |
US4113410A (en) * | 1974-08-06 | 1978-09-12 | Otsuka Nutrition Research Institute Inc. | Liquid-sealed type vacuum pump |
DE2904686A1 (en) * | 1979-02-08 | 1980-08-14 | Volkswagenwerk Ag | OIL LUBRICATED VACUUM PUMP WITH AN OIL SEPARATOR ARRANGED IN THE AREA OF YOUR SUCTION OPENING |
DE102005031718A1 (en) * | 2005-07-07 | 2007-01-18 | Leybold Vacuum Gmbh | Rotary vacuum pump |
WO2010145633A2 (en) * | 2009-06-17 | 2010-12-23 | Ixetic Hückeswagen Gmbh | Vacuum pump |
DE102016007509A1 (en) * | 2016-06-20 | 2017-12-21 | Schwäbische Hüttenwerke Automotive GmbH | Rotary pump with opening pressure reduction pocket |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2118356A (en) * | 1935-03-07 | 1938-05-24 | Crosiey Radio Corp | One-way valve |
US2929550A (en) * | 1955-03-04 | 1960-03-22 | N G N Electrical Ltd | Rotary pumps and valves therefor |
US2928588A (en) * | 1956-10-24 | 1960-03-15 | Gustav H Sudmeier | Compressor |
US3053439A (en) * | 1957-07-24 | 1962-09-11 | Leybolds Nachfolger E | Rotary vacuum pump |
US3042292A (en) * | 1958-05-30 | 1962-07-03 | Heraeus Gmbh W C | Vacuum pump with gas ballast device |
US3151808A (en) * | 1959-06-19 | 1964-10-06 | Leybold Holding A G | Pump |
US3130902A (en) * | 1961-08-28 | 1964-04-28 | Gen Electric | Refrigerator compressor |
US3360193A (en) * | 1965-12-29 | 1967-12-26 | Rotron Mfg Co | Regenerative compressors with integral mufflers |
US3355095A (en) * | 1966-02-01 | 1967-11-28 | Singer Co | Combined casing and noise muffler for a vortex fan |
-
1966
- 1966-03-16 GB GB11533/66A patent/GB1140452A/en not_active Expired
-
1967
- 1967-03-13 US US622816A patent/US3421688A/en not_active Expired - Lifetime
- 1967-03-14 DE DE19671628252 patent/DE1628252A1/en active Pending
- 1967-03-16 FR FR99126A patent/FR1514763A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2555674A1 (en) * | 1983-11-30 | 1985-05-31 | Cit Alcatel | PALLET OIL SEAL PUMP |
EP0144888A2 (en) * | 1983-11-30 | 1985-06-19 | Alcatel Cit | Oil-sealed vane pump |
EP0144888A3 (en) * | 1983-11-30 | 1985-07-17 | Compagnie Industrielle Des Telecommunications Cit-Alcatel S.A. Dite: | Oil-sealed vane pump |
GB2150641A (en) * | 1983-12-05 | 1985-07-03 | Walbro Corp | Rotary pump |
US4714416A (en) * | 1984-07-26 | 1987-12-22 | Matsushita Electric Industrial Co., Ltd. | Quiet running compressor |
EP0921315A3 (en) * | 1997-12-08 | 2000-05-03 | Carrier Corporation | Compressor discharge port with valve |
Also Published As
Publication number | Publication date |
---|---|
US3421688A (en) | 1969-01-14 |
FR1514763A (en) | 1968-02-23 |
DE1628252A1 (en) | 1971-01-28 |
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