EP 0711386 B1 19980325 - OIL-SEALED VACUUM PUMP
Title (en)
OIL-SEALED VACUUM PUMP
Title (de)
ÖLGEDICHTETE VAKUUMPUMPE
Title (fr)
POMPE A VIDE ETANCHE A L'HUILE
Publication
Application
Priority
- DE 4325285 A 19930728
- EP 9401680 W 19940526
Abstract (en)
[origin: WO9504222A1] The invention pertains to an oil-sealed vacuum pump (1) with a pump chamber (8, 9), with a rotor (3) rotatively mounted therein, with a bearing piece (13) delimiting the pump chamber on the drive side and with a passage (35) in the bearing piece (13) which contains a coupling piece (37) used to interlock the rotor (3) with the shaft (36) of a drive motor (4) and a sealing ring (55) to seal off the coupling piece from the passage (35) in the bearing piece (13). To simplify manufacture of the pump, the invention proposes that the interlocking connections between rotor (3) and coupling piece (37) as well as coupling piece (37) and shaft (36) are effected on the end faces, and that the coupling piece (37) is a support for a rotor (46) for an oil pump (45, 46), the pump chamber (45) of which is formed in the end plate (13).
IPC 1-7
IPC 8 full level
F04C 25/02 (2006.01); F04C 29/00 (2006.01); F04C 29/02 (2006.01)
CPC (source: EP KR US)
F04C 29/005 (2013.01 - EP US); F04C 29/02 (2013.01 - KR); F04C 29/025 (2013.01 - EP US); Y10T 403/7016 (2015.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
DE 4325285 A1 19950202; DE 59405538 D1 19980430; EP 0711386 A1 19960515; EP 0711386 B1 19980325; JP H09500942 A 19970128; KR 960704160 A 19960831; US 5749716 A 19980512; WO 9504222 A1 19950209
DOCDB simple family (application)
DE 4325285 A 19930728; DE 59405538 T 19940526; EP 9401680 W 19940526; EP 94917665 A 19940526; JP 50550995 A 19940526; KR 19960700471 A 19960127; US 58692896 A 19960129