EP0162434A3 - Dispositif prévenant l'aspiration retour pour ompes à piston rotatif - Google Patents
Dispositif prévenant l'aspiration retour pour ompes à piston rotatif Download PDFInfo
- Publication number
- EP0162434A3 EP0162434A3 EP85106168A EP85106168A EP0162434A3 EP 0162434 A3 EP0162434 A3 EP 0162434A3 EP 85106168 A EP85106168 A EP 85106168A EP 85106168 A EP85106168 A EP 85106168A EP 0162434 A3 EP0162434 A3 EP 0162434A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- oil
- pressure
- pump
- valve
- pumping chamber
- 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.)
- Withdrawn
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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
- F04C29/021—Control systems for the circulation of the lubricant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US61263184A | 1984-05-21 | 1984-05-21 | |
US612631 | 1984-05-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0162434A2 EP0162434A2 (fr) | 1985-11-27 |
EP0162434A3 true EP0162434A3 (fr) | 1986-03-05 |
Family
ID=24453984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85106168A Withdrawn EP0162434A3 (fr) | 1984-05-21 | 1985-05-20 | Dispositif prévenant l'aspiration retour pour ompes à piston rotatif |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0162434A3 (fr) |
JP (1) | JPS60249690A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63108587U (fr) * | 1986-12-31 | 1988-07-13 | ||
JPS63112294U (fr) * | 1987-01-14 | 1988-07-19 | ||
JPH0255892A (ja) * | 1988-08-19 | 1990-02-26 | Kobe Steel Ltd | スクリュ式真空ポンプ |
CA2090390A1 (fr) * | 1992-08-07 | 1994-02-08 | Jerome C. Roach | Dispositif de coupure d'huile a surete integree pour compresseur a vis |
US5341658A (en) * | 1992-08-07 | 1994-08-30 | American Standard Inc. | Fail safe mechanical oil shutoff arrangement for screw compressor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3057546A (en) * | 1957-02-07 | 1962-10-09 | Edwards High Vacuum Ltd | Rotary vacuum pumps |
DE1428236A1 (de) * | 1961-07-13 | 1968-11-28 | Alsacienne D Electronique Et D | Unter OElabdichtung arbeitende Rotationsvakuumpumpe |
DD131487A1 (de) * | 1977-06-24 | 1978-06-28 | Juergen Kaunert | Absperrventil mit automatischer belueftungseinrichtung fuer vakuumpumpen |
DE3033082A1 (de) * | 1980-09-03 | 1982-04-08 | Leybold-Heraeus GmbH, 5000 Köln | Oelgedichtete vakuumpumpe |
-
1985
- 1985-05-08 JP JP9766585A patent/JPS60249690A/ja active Pending
- 1985-05-20 EP EP85106168A patent/EP0162434A3/fr not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3057546A (en) * | 1957-02-07 | 1962-10-09 | Edwards High Vacuum Ltd | Rotary vacuum pumps |
DE1428236A1 (de) * | 1961-07-13 | 1968-11-28 | Alsacienne D Electronique Et D | Unter OElabdichtung arbeitende Rotationsvakuumpumpe |
DD131487A1 (de) * | 1977-06-24 | 1978-06-28 | Juergen Kaunert | Absperrventil mit automatischer belueftungseinrichtung fuer vakuumpumpen |
DE3033082A1 (de) * | 1980-09-03 | 1982-04-08 | Leybold-Heraeus GmbH, 5000 Köln | Oelgedichtete vakuumpumpe |
Also Published As
Publication number | Publication date |
---|---|
EP0162434A2 (fr) | 1985-11-27 |
JPS60249690A (ja) | 1985-12-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): DE FR GB IT |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): DE FR GB IT |
|
17P | Request for examination filed |
Effective date: 19860613 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19871202 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BORNEMANN, ALFRED H. |