GB404056A - Improvements in and relating to rotary gas and vapour pumps - Google Patents
Improvements in and relating to rotary gas and vapour pumpsInfo
- Publication number
- GB404056A GB404056A GB21285/32A GB2128532A GB404056A GB 404056 A GB404056 A GB 404056A GB 21285/32 A GB21285/32 A GB 21285/32A GB 2128532 A GB2128532 A GB 2128532A GB 404056 A GB404056 A GB 404056A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquid
- pressure chamber
- grooves
- level
- rotors
- 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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
404,056. Screw pumps. DOES DE BIJE, A. J. M. A. VAN DER, 181, Meerdervoort The Hague. July 28, 1932, No. 21285. Convention date, Oct. 28, 1931. [Class 110 (ii).] A screw pump for gases or vapours is provided with a liquid sealing and cooling medium which is fed from the pressure chamber 19 through passages 15, 16, to the bottoms of the grooves. Left-handed and right-handed screws 11, 13, operate together and similar rotors 13, 14, are fixed to the other ends of the shafts 9, 10, for balancing purposes. Liquid is supplied in the pressure chamber 19 to the level 20 and may leak back to one of the suction ports 2 up to a level 21 after which the screw pump picks up surplus liquid and restores it to the pressure chamber. The amount of liquid in the grooves may increase from the suction sides towards the chamber 19 to secure increased compression, which is approximately isothermal, of the gas. In a modification the channels for the liquid are cut in the casing walls, and the liquid may be sprayed on to the rotors. Where steam or vapour is being pumped, condensation water may act as the liquid medium.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL404056X | 1931-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB404056A true GB404056A (en) | 1934-01-11 |
Family
ID=19785930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB21285/32A Expired GB404056A (en) | 1931-10-28 | 1932-07-28 | Improvements in and relating to rotary gas and vapour pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB404056A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2636443A (en) * | 1948-01-31 | 1953-04-28 | H J Rand Washing Machine Corp | Self-lubricating pump |
| US4580953A (en) * | 1983-07-20 | 1986-04-08 | Imo Aktiebolag | Screw pump including a fluid bypass regulating device |
-
1932
- 1932-07-28 GB GB21285/32A patent/GB404056A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2636443A (en) * | 1948-01-31 | 1953-04-28 | H J Rand Washing Machine Corp | Self-lubricating pump |
| US4580953A (en) * | 1983-07-20 | 1986-04-08 | Imo Aktiebolag | Screw pump including a fluid bypass regulating device |
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