GB847776A - Improvements in or relating to rotary vacuum pumps having a gas ballast device - Google Patents
Improvements in or relating to rotary vacuum pumps having a gas ballast deviceInfo
- Publication number
- GB847776A GB847776A GB11238/59A GB1123859A GB847776A GB 847776 A GB847776 A GB 847776A GB 11238/59 A GB11238/59 A GB 11238/59A GB 1123859 A GB1123859 A GB 1123859A GB 847776 A GB847776 A GB 847776A
- Authority
- GB
- United Kingdom
- Prior art keywords
- duct
- chamber
- gas
- pump
- exhaust
- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/32—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members
- F04C18/322—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group F04C18/02 and relative reciprocation between the co-operating members with vanes hinged to the outer member and reciprocating with respect to the outer member
-
- 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
- F04C2220/00—Application
- F04C2220/50—Pumps with means for introducing gas under pressure for ballasting
-
- 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
- F04C29/02—Lubrication; Lubricant separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
847,776. Rotary pumps. HERAENS G.m.b.H., W. C. April 2, 1959 [May 30, 1958], No. 11238/59. Class 110 (2). A vacuum pump with an oil-sealed eccentrically-moving piston 3 delivering gas to an exhaust-chamber 10 is provided with a gas ballast device 16 connected from outside of the pump to the working-chamber for the intermittent introduction of gas into the working- chamber. The inlet duct 16 is placed centrally in an exhaust valve body 11 and is provided with a valve disc 20, pressed upwardly by springs 21, which closes the duct 16 periodically when the gas ballast duct is being exhausted. Hence no oil can reach the duct when the pump is in operation. Upon completion of the exhaustion, the duct is freed for the entering ballast gas, a slight negative pressure in the pump working chamber raising the valve disc 20. The pump is provided with intake openings 6, 5, 7 by means of an abutment 4 which slides and rocks in an element 8. Exhaust is by way of a port 9 leading to an exhaust chamber 10 through a series of valves 13 and to an oil separator chamber 12, which may be in the form of a cyclone. A lateral duct 19, extending from the oil separator 12, is coupled to the gas ballast duct 17. A shut-off valve 18 is provided as shown.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE847776X | 1958-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB847776A true GB847776A (en) | 1960-09-14 |
Family
ID=6775407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB11238/59A Expired GB847776A (en) | 1958-05-30 | 1959-04-02 | Improvements in or relating to rotary vacuum pumps having a gas ballast device |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB847776A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104481878A (en) * | 2014-12-12 | 2015-04-01 | 南通诺博特机器人制造有限公司 | Slide-valve vacuum pump suitable for vacuum extrusion of tiles |
CN108730186A (en) * | 2018-05-21 | 2018-11-02 | 西安工业大学 | A kind of oil-gas separated-type vacuum pump |
EP4174316A1 (en) * | 2021-10-29 | 2023-05-03 | Agilent Technologies, Inc. | Vacuum pump provided with a gas ballast arrangement |
-
1959
- 1959-04-02 GB GB11238/59A patent/GB847776A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104481878A (en) * | 2014-12-12 | 2015-04-01 | 南通诺博特机器人制造有限公司 | Slide-valve vacuum pump suitable for vacuum extrusion of tiles |
CN104481878B (en) * | 2014-12-12 | 2016-07-06 | 南通诺博特机器人制造有限公司 | Slide-valve vacuum pump suitable in brick and tile vacuum extruding |
CN108730186A (en) * | 2018-05-21 | 2018-11-02 | 西安工业大学 | A kind of oil-gas separated-type vacuum pump |
CN108730186B (en) * | 2018-05-21 | 2019-12-13 | 西安工业大学 | Oil-gas separation type vacuum pump |
EP4174316A1 (en) * | 2021-10-29 | 2023-05-03 | Agilent Technologies, Inc. | Vacuum pump provided with a gas ballast arrangement |
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