Global Patent Index - EP 2594803 B1

EP 2594803 B1 20160720 - Friction vacuum pump

Title (en)

Friction vacuum pump

Title (de)

Reibungsvakuumpumpe

Title (fr)

Pompe à vide à friction

Publication

EP 2594803 B1 20160720 (DE)

Application

EP 12190912 A 20121031

Priority

DE 102011118661 A 20111116

Abstract (en)

[origin: EP2594803A1] The pump has a rotor (2) rotatably supported by a rolling bearing (4), and comprising a case (10) that is fastened at a hub (8). A stator (20) is concentrically arranged to the case under formation of a gap (30) with a gap width (100), where the gap width is decreased to the rolling bearing. A permanent magnet bearing is attached to an end (12) of the case for supporting the rotor, where another end (14) of the case is arranged at height of the rolling bearing. A turbo-molecular pumping structure is provided between the hub and the permanent magnet bearing.

IPC 8 full level

F04D 19/04 (2006.01); F04D 29/058 (2006.01); F04D 29/059 (2006.01); F04D 29/52 (2006.01); F04D 29/64 (2006.01); F04D 29/32 (2006.01)

CPC (source: EP)

F04D 19/044 (2013.01); F04D 29/058 (2013.01); F04D 29/059 (2013.01); F04D 29/522 (2013.01); F04D 29/642 (2013.01); F04D 19/046 (2013.01); F04D 29/321 (2013.01); F05D 2250/232 (2013.01); F05D 2250/323 (2013.01)

Citation (examination)

DE 69003256 T2 19940113 - CIT ALCATEL [FR]

Citation (opposition)

Opponent : Leybold GmbH

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)

EP 2594803 A1 20130522; EP 2594803 B1 20160720; DE 102011118661 A1 20130516; JP 2013104430 A 20130530; JP 5898050 B2 20160406

DOCDB simple family (application)

EP 12190912 A 20121031; DE 102011118661 A 20111116; JP 2012252248 A 20121116