DE3866888D1 - Schmieroelkreislauf von drehkolbenvakuumpumpen. - Google Patents

Schmieroelkreislauf von drehkolbenvakuumpumpen.

Info

Publication number
DE3866888D1
DE3866888D1 DE8888830042T DE3866888T DE3866888D1 DE 3866888 D1 DE3866888 D1 DE 3866888D1 DE 8888830042 T DE8888830042 T DE 8888830042T DE 3866888 T DE3866888 T DE 3866888T DE 3866888 D1 DE3866888 D1 DE 3866888D1
Authority
DE
Germany
Prior art keywords
lubricating oil
oil circuit
vacuum pumps
piston vacuum
turning piston
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 - Lifetime
Application number
DE8888830042T
Other languages
English (en)
Inventor
Massimo Ceccherini
Silvio Dondoli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Galileo Vacuum Tec SpA
Original Assignee
Galileo Vacuum Tec SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11128414&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3866888(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Galileo Vacuum Tec SpA filed Critical Galileo Vacuum Tec SpA
Application granted granted Critical
Publication of DE3866888D1 publication Critical patent/DE3866888D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
DE8888830042T 1987-02-04 1988-02-03 Schmieroelkreislauf von drehkolbenvakuumpumpen. Expired - Lifetime DE3866888D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8709321A IT1207829B (it) 1987-02-04 1987-02-04 Perfezionamento nel circuito di lubrificazione delle pompe rotative per vuoto.

Publications (1)

Publication Number Publication Date
DE3866888D1 true DE3866888D1 (de) 1992-01-30

Family

ID=11128414

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888830042T Expired - Lifetime DE3866888D1 (de) 1987-02-04 1988-02-03 Schmieroelkreislauf von drehkolbenvakuumpumpen.

Country Status (4)

Country Link
US (1) US4844702A (de)
EP (1) EP0277924B1 (de)
DE (1) DE3866888D1 (de)
IT (1) IT1207829B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4911623A (en) * 1989-04-28 1990-03-27 Brunswick Corporation Method and apparatus for lubricating a rotary engine
DE4017191A1 (de) * 1990-05-29 1991-12-05 Leybold Ag Verfahren zur oelversorgung einer zweistufigen drehschiebervakuumpumpe und fuer die durchfuehrung dieses verfahrens geeignete drehschiebervakuumpumpe
IT1246969B (it) * 1991-06-17 1994-12-01 Galileo Vacuum Tec Spa Pompa rotativa per vuoto, con otturatore a comando automatico per l'isolamento dell'ambiente sotto-vuoto.
KR950007519B1 (ko) * 1992-09-09 1995-07-11 김영수 로터리 형식의 진공펌프장치
GB9223806D0 (en) * 1992-11-13 1993-01-06 Boc Group Plc Improvements in vacuum pumps
DE4325285A1 (de) * 1993-07-28 1995-02-02 Leybold Ag Ölgedichtete Vakuumpumpe
DE4325283A1 (de) * 1993-07-28 1995-02-02 Leybold Ag Betriebsabhängig steuerbares Ventilsystem für eine Vakuumpumpe
DE4325281A1 (de) * 1993-07-28 1995-02-02 Leybold Ag Vakuumpumpe mit einer Gasballasteinrichtung
DE19526303A1 (de) * 1995-07-19 1997-01-23 Leybold Ag Ölgedichtete Drehschiebervakuumpumpe mit einer Ölversorgung
KR100408153B1 (ko) 2001-08-14 2003-12-01 주식회사 우성진공 드라이 진공펌프
WO2008074362A1 (fr) * 2006-12-18 2008-06-26 Ateliers Busch Sa Corps de pompe à palettes
WO2011092930A1 (ja) * 2010-01-29 2011-08-04 アルバック機工株式会社 ポンプ
US9402763B2 (en) 2012-09-12 2016-08-02 Breg, Inc. Cold therapy apparatus having heat exchanging therapy pad
EP3156653B1 (de) * 2015-10-15 2020-07-29 Pfeiffer Vacuum Gmbh Rotationsverdrängervakuumpumpe

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1988296A (en) * 1932-11-05 1935-01-15 Allis Chalmers Mfg Co Pump valve control
GB970900A (en) * 1962-09-04 1964-09-23 Alan Sydney Darling Improvements in and relating to rotary vacuum pumps
US4366834A (en) * 1980-10-10 1983-01-04 Sargent-Welch Scientific Company Back-flow prevention valve
DE3150033A1 (de) * 1981-12-17 1983-07-14 Leybold-Heraeus GmbH, 5000 Köln Vakuumpumpe mit einem saugstutzen-ventil und betriebsverfahren dafuer
DE3150000A1 (de) * 1981-12-17 1983-07-14 Leybold-Heraeus GmbH, 5000 Köln Oelgedichtete vakuumpumpe

Also Published As

Publication number Publication date
EP0277924A2 (de) 1988-08-10
EP0277924B1 (de) 1991-12-18
EP0277924A3 (en) 1989-06-07
US4844702A (en) 1989-07-04
IT1207829B (it) 1989-06-01
IT8709321A0 (it) 1987-02-04

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8331 Complete revocation