GB668692A - Improvements in or relating to two-stage rotary vacuum pumps - Google Patents
Improvements in or relating to two-stage rotary vacuum pumpsInfo
- Publication number
- GB668692A GB668692A GB10519/50A GB1051950A GB668692A GB 668692 A GB668692 A GB 668692A GB 10519/50 A GB10519/50 A GB 10519/50A GB 1051950 A GB1051950 A GB 1051950A GB 668692 A GB668692 A GB 668692A
- Authority
- GB
- United Kingdom
- Prior art keywords
- port
- oil
- space
- valve
- pump
- 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
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/02—Liquid sealing for high-vacuum pumps or for compressors
Abstract
668,692. Rotary pumps. VOGT, A. April 28, 1950. [May 7, 1949] No. 10519/50. Class 110(ii). A two - stage pump,. preferably a vacuum pump, is provided with an eccentric ring rotor 2 which contacts stator parts 1, 4, each at one point, and carries sliding vanes 5, 6. Fluid is pumped from duct 9 and an inlet 8 to a port 10 and space 11 leading to a port 13, for further compression, and is finally discharged through a port 14 to a space 15 above an insert 12. A valve 16 between the spaces 11, 15 is open when the pump is first started up, but closes with increasing vacuum in the vessel being evacuated, the fluid then being forced through the second pumping stage. For sealing and lubrication purposes, an oil bath 20 feeds a tank 18 through a drip tube 17, the oil covering the valve 16 and also the delivery valve from the port 14. The oil passes through a port 19 into the inner pumping space. The vertical driving shaft 21 has a seal 22. The ends of the vanes are rounded off as shown. The oil in the tank 18 is heated due to friction of adjacent parts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH668692X | 1949-05-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB668692A true GB668692A (en) | 1952-03-19 |
Family
ID=4527493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10519/50A Expired GB668692A (en) | 1949-05-07 | 1950-04-28 | Improvements in or relating to two-stage rotary vacuum pumps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB668692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2287755A (en) * | 1994-03-19 | 1995-09-27 | Acg France | Rotary vane pump |
| US5597295A (en) * | 1992-11-10 | 1997-01-28 | Pipaloff; Alexander G. | Multi-chamber rotary fluid machine with at least two ring members carrying vanes |
-
1950
- 1950-04-28 GB GB10519/50A patent/GB668692A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5597295A (en) * | 1992-11-10 | 1997-01-28 | Pipaloff; Alexander G. | Multi-chamber rotary fluid machine with at least two ring members carrying vanes |
| GB2287755A (en) * | 1994-03-19 | 1995-09-27 | Acg France | Rotary vane pump |
| GB2287755B (en) * | 1994-03-19 | 1998-01-14 | Acg France | Rotary vane pump |
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