EP 0714482 B2 20021009 - VACUUM PUMP WITH OIL SEPARATOR
Title (en)
VACUUM PUMP WITH OIL SEPARATOR
Title (de)
VAKUUMPUMPE MIT ÖLABSCHEIDER
Title (fr)
POMPE A VIDE COMPORTANT UN SEPARATEUR D'HUILE
Publication
Application
Priority
- DE 4327583 A 19930817
- EP 9402675 W 19940811
Abstract (en)
[origin: US5697771A] PCT No. PCT/EP94/02675 Sec. 371 Date Feb. 15, 1996 Sec. 102(e) Date Feb. 15, 1996 PCT Filed Aug. 11, 1994 PCT Pub. No. WO95/05540 PCT Pub. Date Feb. 23, 1995The invention relates to a vacuum pump (1) with an oil separator (42) connected downstream of its outlet (33) and with a duct (45, 46) through which the oil separated in the oil separator (42) is returned to the vacuum pump (1); to feed back the oil in a simple manner, the oil feed duct (45, 46) opens into a duct (47) that supplies gas ballast to the pump (1).
IPC 1-7
IPC 8 full level
F04C 25/02 (2006.01); F04C 23/00 (2006.01); F04C 27/02 (2006.01); F04C 28/28 (2006.01); F04C 29/02 (2006.01); F04C 29/12 (2006.01)
CPC (source: EP KR US)
F04C 23/001 (2013.01 - EP US); F04C 27/02 (2013.01 - EP KR US); F04C 28/28 (2013.01 - EP US); F04C 29/026 (2013.01 - EP US); F04C 29/122 (2013.01 - EP US); F04C 2220/50 (2013.01 - EP US); Y10S 418/01 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
US 5697771 A 19971216; DE 4327583 A1 19950223; DE 59402844 D1 19970626; EP 0714482 A1 19960605; EP 0714482 B1 19970521; EP 0714482 B2 20021009; JP H09503566 A 19970408; KR 960704159 A 19960831; WO 9505540 A1 19950223
DOCDB simple family (application)
US 59622296 A 19960215; DE 4327583 A 19930817; DE 59402844 T 19940811; EP 9402675 W 19940811; EP 94926181 A 19940811; JP 50674294 A 19940811; KR 19960700780 A 19960216