FR2383335A1 - Pompe mecanique a joint d'huile - Google Patents
Pompe mecanique a joint d'huileInfo
- Publication number
- FR2383335A1 FR2383335A1 FR7707036A FR7707036A FR2383335A1 FR 2383335 A1 FR2383335 A1 FR 2383335A1 FR 7707036 A FR7707036 A FR 7707036A FR 7707036 A FR7707036 A FR 7707036A FR 2383335 A1 FR2383335 A1 FR 2383335A1
- Authority
- FR
- France
- Prior art keywords
- oil seal
- mechanical pump
- pump
- vacuum
- oil
- 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.)
- Granted
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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/124—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps
- F04C29/126—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type
-
- 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
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
-
- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
Abstract
Il s'agit de poulpes à vide à joint d'huile, de préférence des pompes mécanique rotatives, dont le clapet d'aspiration est manoeuvré par la seule différence de pression entre l'intérieur de la pompe et le conduit d'aspiration, et dont le clapet de refoulement possède un ou plusieurs orifices noyés dans un bain d'huile lorsque la pompe fonctionne au vide limite.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707036A FR2383335A1 (fr) | 1977-03-08 | 1977-03-08 | Pompe mecanique a joint d'huile |
DE19772755328 DE2755328A1 (de) | 1977-03-08 | 1977-12-12 | Oelgedichtete vakuumpumpe |
IT19043/78A IT1091852B (it) | 1977-03-08 | 1978-01-05 | Pompa a vuoto a tenuta d'olio |
GB8600/78A GB1556643A (en) | 1977-03-08 | 1978-03-03 | Oil sealed vacuum pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707036A FR2383335A1 (fr) | 1977-03-08 | 1977-03-08 | Pompe mecanique a joint d'huile |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2383335A1 true FR2383335A1 (fr) | 1978-10-06 |
FR2383335B1 FR2383335B1 (fr) | 1982-07-09 |
Family
ID=9187851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7707036A Granted FR2383335A1 (fr) | 1977-03-08 | 1977-03-08 | Pompe mecanique a joint d'huile |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2755328A1 (fr) |
FR (1) | FR2383335A1 (fr) |
GB (1) | GB1556643A (fr) |
IT (1) | IT1091852B (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0171367A1 (fr) * | 1984-07-05 | 1986-02-12 | GNUTTI CARLO S.p.A. | Unité de compresseur pour la production d'air comprimé |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2904686A1 (de) * | 1979-02-08 | 1980-08-14 | Volkswagenwerk Ag | Oelgeschmierte vakuumpumpe mit einem im bereich ihrer ansaugoeffnung angeordneten oelabscheider |
DE3150033A1 (de) * | 1981-12-17 | 1983-07-14 | Leybold-Heraeus GmbH, 5000 Köln | Vakuumpumpe mit einem saugstutzen-ventil und betriebsverfahren dafuer |
DE3336128A1 (de) * | 1982-10-08 | 1984-04-12 | Barmag Barmer Maschf | Vakuumpumpe |
JPS6412092A (en) * | 1987-07-01 | 1989-01-17 | Kobe Steel Ltd | Vacuum pump of screw type |
DE4208194A1 (de) * | 1992-03-14 | 1993-09-16 | Leybold Ag | Verfahren zum betrieb einer oelgedichteten vakuumpumpe sowie fuer die durchfuehrung dieses verfahrens geeignete vakuumpumpe |
CN100387847C (zh) * | 2003-12-12 | 2008-05-14 | 乐金电子(天津)电器有限公司 | 涡旋式压缩机的气体逆流防止装置 |
DE102005031718A1 (de) * | 2005-07-07 | 2007-01-18 | Leybold Vacuum Gmbh | Vakuum-Drehschieberpumpe |
DE202012002881U1 (de) * | 2012-03-22 | 2013-06-25 | Oerlikon Leybold Vacuum Gmbh | Vakuum-Drehschieberpumpe |
DE102013210854A1 (de) * | 2013-06-11 | 2014-12-11 | Oerlikon Leybold Vacuum Gmbh | Vakuumpumpe sowie Verfahren zum Betreiben einer Vakuumpumpe |
JP2018178846A (ja) * | 2017-04-12 | 2018-11-15 | 株式会社荏原製作所 | 真空ポンプ装置の運転制御装置、及び運転制御方法 |
IT201700115881A1 (it) | 2017-10-13 | 2019-04-13 | D V P Vacuum Tech S P A | Pompa per il vuoto lubrificata |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1200604A (fr) * | 1957-07-24 | 1959-12-23 | Leybolds Nachfolger E | Pompe rotative à vide |
FR1219478A (fr) * | 1958-05-30 | 1960-05-18 | Heraeus Gmbh W C | Pompe à vide avec dispositif à ballast gazeux |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE567479C (de) * | 1933-01-04 | Oerlikon Maschf | Vakuumabschlussvorrichtung fuer in OEl laufende Drehkolben-Vakuumpumpen | |
DE1123076B (de) * | 1959-04-18 | 1962-02-01 | Leybolds Nachfolger E | Rotierende mechanische Vakuumpumpe |
GB1336873A (en) * | 1970-01-31 | 1973-11-14 | Gen Eng Radcliffe | Vacuum pumps |
-
1977
- 1977-03-08 FR FR7707036A patent/FR2383335A1/fr active Granted
- 1977-12-12 DE DE19772755328 patent/DE2755328A1/de not_active Withdrawn
-
1978
- 1978-01-05 IT IT19043/78A patent/IT1091852B/it active
- 1978-03-03 GB GB8600/78A patent/GB1556643A/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1200604A (fr) * | 1957-07-24 | 1959-12-23 | Leybolds Nachfolger E | Pompe rotative à vide |
FR1219478A (fr) * | 1958-05-30 | 1960-05-18 | Heraeus Gmbh W C | Pompe à vide avec dispositif à ballast gazeux |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0171367A1 (fr) * | 1984-07-05 | 1986-02-12 | GNUTTI CARLO S.p.A. | Unité de compresseur pour la production d'air comprimé |
Also Published As
Publication number | Publication date |
---|---|
GB1556643A (en) | 1979-11-28 |
IT1091852B (it) | 1985-07-06 |
FR2383335B1 (fr) | 1982-07-09 |
IT7819043A0 (it) | 1978-01-05 |
DE2755328A1 (de) | 1978-09-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |