GB589475A - Improvements in or relating to fluid stream vacuum pumps - Google Patents
Improvements in or relating to fluid stream vacuum pumpsInfo
- Publication number
- GB589475A GB589475A GB753245A GB753245A GB589475A GB 589475 A GB589475 A GB 589475A GB 753245 A GB753245 A GB 753245A GB 753245 A GB753245 A GB 753245A GB 589475 A GB589475 A GB 589475A
- Authority
- GB
- United Kingdom
- Prior art keywords
- working fluid
- boiler
- pump
- nozzle
- connection
- 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
- 239000012530 fluid Substances 0.000 title abstract 6
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
589,475. High vacuum pumps. EDWARDS & CO. (LONDON), Ltd., W., TILLS, J. W., and POTTS, F. C. March 26, 1945, No. 7532. [Class 71] A fluid stream vacuum pump in which the low vapour pressure working fluid is directed into a forevacuum region under atmospheric pressure comprises a downwardly directed nozzle and flash boiler unit 1 centrally disposed within the cylindrical pump casing 2 that has a forevacuum connection 3 and a high vacuum connection 4. Working fluid is supplied through the conduit 5 to the flash boiler and nozzle 1 from the tank 6 which is open to atmosphere at 6a. The base of the pump body 2 is formed into a receiver 7 for collecting condensate which may pass through the valve 8 into the tank 6 for re-use on breaking the vacuum within the pump. The working fluid pressure may be increased by disposing the tank 6 above boiler and nozzle unit 1. The Provisional Specification describes a modification wherein the cylindrical pump body is divided into an upper and lower compartments by means of a division plate and has a cylindrical or conical tubular body extending axially from the upper part which forms a high vacuum connection into the lower compartment, the flash boiler and unit being located within this axially extending body. Working fluid is stored in the upper compartment and conducted by atmospheric pressure to the boiler and nozzle unit by means of a pipe; a forevacuum connection is disposed just below the division plate in the lower compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB753245A GB589475A (en) | 1945-03-26 | 1945-03-26 | Improvements in or relating to fluid stream vacuum pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB753245A GB589475A (en) | 1945-03-26 | 1945-03-26 | Improvements in or relating to fluid stream vacuum pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB589475A true GB589475A (en) | 1947-06-20 |
Family
ID=9834909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB753245A Expired GB589475A (en) | 1945-03-26 | 1945-03-26 | Improvements in or relating to fluid stream vacuum pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB589475A (en) |
-
1945
- 1945-03-26 GB GB753245A patent/GB589475A/en not_active Expired
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