GB514766A - Improvements in high vacuum condensation or diffusion pumps - Google Patents
Improvements in high vacuum condensation or diffusion pumpsInfo
- Publication number
- GB514766A GB514766A GB22257/39A GB2225739A GB514766A GB 514766 A GB514766 A GB 514766A GB 22257/39 A GB22257/39 A GB 22257/39A GB 2225739 A GB2225739 A GB 2225739A GB 514766 A GB514766 A GB 514766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compartment
- vapour
- jet
- vapour pressure
- conduit
- 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
514,766. Diffusion pumps. EASTMAN KODAK CO. May 14, 1938, No. 22257/39. Convention date, May 18, 1937. Divided out of 514,749. [Class 71] In a cascade diffusion pump for the production of high vacua of the kind, which are operated by means of a mixed organic fluid, the fluid from one stage is employed to heat the throat or conduit of a jet in another stage. In the form shown the final jet of vapour of the lowest vapour pressure issues from an umbrella type of nozzle 72 supplied from a boiler by a compartment C having vertical walls 91, 92 joined to a conduit 88 with a flared end 89. The compartment C is surrounded by a compartment D associated with a jet 28 from which issues jets of vapour of a higher vapour pressure than the vapour from compartment C. The heat from compartment D prevents the vapours of low vapour pressure from condensing before reaching the nozzle 72.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US514766XA | 1937-05-18 | 1937-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB514766A true GB514766A (en) | 1939-11-16 |
Family
ID=21971536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22257/39A Expired GB514766A (en) | 1937-05-18 | 1938-05-14 | Improvements in high vacuum condensation or diffusion pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB514766A (en) |
-
1938
- 1938-05-14 GB GB22257/39A patent/GB514766A/en not_active Expired
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