EP 2118492 B1 20101117 - RAPIDLY ROTATING VACUUM PUMP
Title (en)
RAPIDLY ROTATING VACUUM PUMP
Title (de)
SCHNELLDREHENDE VAKUUMPUMPE
Title (fr)
POMPE À VIDE À ROTATION RAPIDE
Publication
Application
Priority
- EP 2008051874 W 20080215
- DE 102007009080 A 20070224
Abstract (en)
[origin: US2010322798A1] A rapidly rotating vacuum pump includes: a magnet-mounted rotor driven by an electric drive motor with a predetermined constant nominal rotational frequency (fnom). The rotor and a rotor bearing are embodied in such a way that the bending-critical counter-rotational resonance frequency (fcrit) is between 3% and a maximum of 30% above the nominal rotational frequency (fnom), thereby preventing an overspeed.
IPC 8 full level
F04D 19/04 (2006.01); F04D 29/058 (2006.01); F04D 29/06 (2006.01)
CPC (source: EP KR US)
F04D 19/04 (2013.01 - KR); F04D 19/042 (2013.01 - EP US); F04D 29/058 (2013.01 - EP US); F04D 29/06 (2013.01 - KR); F04D 29/58 (2013.01 - KR); F04D 29/668 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2010322798 A1 20101223; AT E488700 T1 20101215; CN 101617125 A 20091230; CN 101617125 B 20110608; DE 102007009080 A1 20080828; DE 502008001821 D1 20101230; EP 2118492 A1 20091118; EP 2118492 B1 20101117; JP 2010519453 A 20100603; JP 5498171 B2 20140521; KR 20090113341 A 20091029; WO 2008101876 A1 20080828
DOCDB simple family (application)
US 52819208 A 20080215; AT 08716880 T 20080215; CN 200880005839 A 20080215; DE 102007009080 A 20070224; DE 502008001821 T 20080215; EP 08716880 A 20080215; EP 2008051874 W 20080215; JP 2009550267 A 20080215; KR 20097019677 A 20080215