GB705027A - Improvements in or relating to vacuum pumping apparatus - Google Patents
Improvements in or relating to vacuum pumping apparatusInfo
- Publication number
- GB705027A GB705027A GB2180451A GB2180451A GB705027A GB 705027 A GB705027 A GB 705027A GB 2180451 A GB2180451 A GB 2180451A GB 2180451 A GB2180451 A GB 2180451A GB 705027 A GB705027 A GB 705027A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- pump
- backing pump
- boiler
- backing
- 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
- 238000005086 pumping Methods 0.000 title 1
- 238000009792 diffusion process Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 1
- 230000001050 lubricating effect Effects 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F9/00—Diffusion pumps
- F04F9/04—Diffusion pumps in combination with fore pumps, e.g. use of isolating 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)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
705,027. Oil diffusion pumps. EDWARDS & CO. (LONDON), Ltd., W. Sept. 4, 1952 [Sept. 17, 1951], No. 21804/51. Class 71. The working fluid in the boiler 3 of an oil diffusion pump 1 provides lubricating and sealing oil for an associated mechanical backing pump 4. In operation oil from a common reservoir 5 is drawn slowly up a pipe 7 and through a control valve 9 into an overflow trough 8 in the backing pump connection 6 and thence down a pipe 10 to the boiler 3 to replace any oil lost from the pump 1. Such lost oil is returned to the pump 4 and through a valve 11 to the reservoir 5. In a modification using a two-stake backing pump the oil supply for the boiler instead of being located within the backing pump connection comprises a sealed container supplied from an end bearing of the backing pump and having an overflow to each stage of the backing pump.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2180451A GB705027A (en) | 1951-09-17 | 1951-09-17 | Improvements in or relating to vacuum pumping apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2180451A GB705027A (en) | 1951-09-17 | 1951-09-17 | Improvements in or relating to vacuum pumping apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB705027A true GB705027A (en) | 1954-03-03 |
Family
ID=10169098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2180451A Expired GB705027A (en) | 1951-09-17 | 1951-09-17 | Improvements in or relating to vacuum pumping apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB705027A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1163486B (en) * | 1964-02-20 | Leybolds Nachfolger E | Oil-sealed rotary pump | |
DE1293385B (en) * | 1955-11-10 | 1969-04-24 | Central Scient Co | Two-stage oil-sealed vacuum pump |
-
1951
- 1951-09-17 GB GB2180451A patent/GB705027A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1163486B (en) * | 1964-02-20 | Leybolds Nachfolger E | Oil-sealed rotary pump | |
DE1293385B (en) * | 1955-11-10 | 1969-04-24 | Central Scient Co | Two-stage oil-sealed vacuum pump |
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