EP 1899608 B1 20111019 - ROTARY VACUUM PUMP
Title (en)
ROTARY VACUUM PUMP
Title (de)
VAKUUM-DREHSCHIEBERPUMPE
Title (fr)
POMPE A VIDE A TIROIRS ROTATIFS
Publication
Application
Priority
- EP 2006063748 W 20060630
- DE 102005031718 A 20050707
Abstract (en)
[origin: WO2007006666A1] The invention relates to a rotary vacuum pump that has a suction chamber (12) in a housing (10). A rotor (14) is eccentrically mounted in the suction chamber (12). Sliding vanes (18) are connected to the rotor (14). A discharge channel (30) is also connected to the suction chamber (12) and to an oil chamber (32). A valve arrangement (38) is disposed between the discharge channel (30) and the oil chamber (32), in order to prevent the medium from flowing back from the oil chamber (32) into the suction chamber (12). According to the invention, at least one compensating channel (50) is provided and is connected to the discharge channel (30) and to the oil chamber (32).
IPC 8 full level
F04C 18/344 (2006.01); F04C 27/02 (2006.01)
CPC (source: EP KR US)
F04C 18/344 (2013.01 - KR); F04C 18/3442 (2013.01 - EP US); F04C 25/02 (2013.01 - KR); F04C 27/02 (2013.01 - EP KR US); F04C 28/06 (2013.01 - KR); F04C 29/028 (2013.01 - US); F04C 29/128 (2013.01 - EP US); F04C 25/02 (2013.01 - EP US); F04C 28/06 (2013.01 - EP US); F04C 28/28 (2013.01 - EP US); F04C 2220/10 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR IT
DOCDB simple family (publication)
DE 102005031718 A1 20070118; CN 101203677 A 20080618; CN 101203677 B 20110406; EP 1899608 A1 20080319; EP 1899608 B1 20111019; JP 2008545096 A 20081211; JP 4996601 B2 20120808; KR 101291228 B1 20130731; KR 20080024149 A 20080317; US 2009297376 A1 20091203; US 2013251578 A1 20130926; US 8469684 B2 20130625; US 9017051 B2 20150428; WO 2007006666 A1 20070118
DOCDB simple family (application)
DE 102005031718 A 20050707; CN 200680022466 A 20060630; EP 06763998 A 20060630; EP 2006063748 W 20060630; JP 2008519915 A 20060630; KR 20077030305 A 20060630; US 201313900843 A 20130523; US 98840806 A 20060630