GB631190A - Improvements in high vacuum diffusion pumps - Google Patents
Improvements in high vacuum diffusion pumpsInfo
- Publication number
- GB631190A GB631190A GB35846/46A GB3584646A GB631190A GB 631190 A GB631190 A GB 631190A GB 35846/46 A GB35846/46 A GB 35846/46A GB 3584646 A GB3584646 A GB 3584646A GB 631190 A GB631190 A GB 631190A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- nozzles
- casing
- diffuser
- entrained
- 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
- 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
631,190. Vacuum pumps. DISTILLATION PRODUCTS, Inc. Dec. 4, 1946, No. 35846. Convention date, Jan. 16. [Class 71] A high vacuum diffusion pump comprises one or more ejector nozzles 28 located within a pump casing 2 and arranged to deliver vapour from the pump fluid 34, upwardly through chimneys 12 and 18, to an umbrella jet 20. Gases from the system to be evacuated are entrained in these vapours and are forced downwardly between the nozzles 28 and their corresponding diffuser tubes 32, the gases being them entrained in the high velocity vapour streams which pass through elbows 26 into the nozzles 28 and are first forced into the diffuser tubes 32 and finally into a conduit 10 from which they are removed by a backing pump. The condensed working fluid which collects on the walls of the casing 2 and diffuser tubes 32 flows by gravity into the body of the pump fluid 34. In an alternative form, the ejector nozzles are replaced by a single annular nozzle which delivers into an annular diffuser having its outer wall secured at its upper edge to the casing 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US631190XA | 1946-01-16 | 1946-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB631190A true GB631190A (en) | 1949-10-28 |
Family
ID=22047046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35846/46A Expired GB631190A (en) | 1946-01-16 | 1946-12-04 | Improvements in high vacuum diffusion pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB631190A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4671013A (en) * | 1985-10-22 | 1987-06-09 | Noran | Cab window assembly |
-
1946
- 1946-12-04 GB GB35846/46A patent/GB631190A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4671013A (en) * | 1985-10-22 | 1987-06-09 | Noran | Cab window assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1207609A (en) | Improvements in or relating to fluid atomisers | |
| GB631190A (en) | Improvements in high vacuum diffusion pumps | |
| GB1300769A (en) | Mist generator | |
| GB796987A (en) | Improvements in or relating to high vacuum diffusion pumps | |
| GB980724A (en) | Cyclone-type dust extractor for gases and fumes | |
| GB1175015A (en) | Flame Spray Gun | |
| GB971563A (en) | Improvements in or relating to ejector pumps | |
| GB752353A (en) | Process for extracting particles in suspension from aerosols | |
| GB514811A (en) | A device for inducing motion of fluid, or the propulsion of a body through a fluid | |
| GB619555A (en) | Improvements in condensation pump for producing high vacuum | |
| GB702087A (en) | Process for the continuous treatment of insulating oil at low temperatures by means of filtering, deaerating and drying | |
| GB597751A (en) | Improvements in or relating to pumps | |
| GB850112A (en) | Method and means for quietening the hydraulic operation of turbines | |
| GB898171A (en) | Jet cleaner | |
| GB709681A (en) | Spray devices for liquids | |
| GB555056A (en) | Improvements relating to dust collectors or extractors | |
| GB601284A (en) | Improvements in condensation pumps | |
| GB487672A (en) | Improvements in or relating to the extraction of dust from air and gases by sprayingwith liquids | |
| GB514820A (en) | Improvements in high vacuum condensation or diffusion pumps | |
| GB596897A (en) | Improvements in or relating to nozzles, branchpipes or other like liquid-directing devices | |
| GB589475A (en) | Improvements in or relating to fluid stream vacuum pumps | |
| GB702064A (en) | Improvements in or relating to methods of applying liquids to textile fibres | |
| GB717562A (en) | Improvements in or relating to spray nozzles | |
| GB668748A (en) | Improvements in sprayer nozzles | |
| GB940468A (en) | An atomizing plant, more particularly for the manufacture of dried milk and similar milk products |