EP 2783115 B1 20180627 - LIQUID RING VACUUM PUMP
Title (en)
LIQUID RING VACUUM PUMP
Title (de)
FLÜSSIGKEITSRING-VAKUUMPUMPE
Title (fr)
POMPE À VIDE À ANNEAU LIQUIDE
Publication
Application
Priority
- EP 11190556 A 20111124
- EP 2012073294 W 20121122
- EP 12791468 A 20121122
Abstract (en)
[origin: WO2013076176A1] The invention relates to a liquid-ring vacuum pump comprising a pump casing (18) and a shaft (19) eccentrically mounted in the pump casing (18). An impeller (21) and a rotor (20) of a drive motor (20, 24) are connected to the shaft (19). A disk cam (22) is arranged parallel to the impeller (21). According to the invention, a first main bearing (22) for the shaft (19) is arranged between the impeller (21) and the rotor (20) of the drive motor, on the plane of the disk cam (22). The impeller (21) is arranged between the first main bearing (22) and a second main bearing (26). The arrangement of the bearings according to the invention prevents the shaft (19) from bending, thus allowing the leakage gap between the impeller (21) and the disk cam (22) to be kept small.
IPC 8 full level
F04C 28/28 (2006.01); F04C 7/00 (2006.01); F04C 19/00 (2006.01); F04C 29/00 (2006.01)
CPC (source: EP US)
F04C 19/00 (2013.01 - EP); F04C 19/004 (2013.01 - EP US); F04C 19/007 (2013.01 - US); F04C 28/28 (2013.01 - US); F04C 29/0057 (2013.01 - US); F04C 7/00 (2013.01 - US); F04C 2220/10 (2013.01 - US); F04C 2240/56 (2013.01 - US); F04C 2240/801 (2013.01 - US); F04C 2270/165 (2013.01 - US)
Citation (examination)
- US 2145644 A 19390131
- WO 9708808 A1 19970306 - SULZER ELECTRONICS AG [CH], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2013076176 A1 20130530; BR 112014012254 A2 20170530; BR 112014012254 B1 20210622; CN 104114869 A 20141022; CN 104114869 B 20170811; EP 2783115 A1 20141001; EP 2783115 B1 20180627; IN 3853CHN2014 A 20150904; JP 2015503050 A 20150129; JP 6302411 B2 20180328; MX 2014006064 A 20150210; MX 351022 B 20170928; US 2014322039 A1 20141030; US 9964110 B2 20180508
DOCDB simple family (application)
EP 2012073294 W 20121122; BR 112014012254 A 20121122; CN 201280057939 A 20121122; EP 12791468 A 20121122; IN 3853CHN2014 A 20140522; JP 2014542821 A 20121122; MX 2014006064 A 20121122; US 201214359625 A 20121122