EP 2470790 A1 20120704 - VACUUM PUMP WITH PRESSURE EQUALIZATION
Title (en)
VACUUM PUMP WITH PRESSURE EQUALIZATION
Title (de)
UNTERDRUCKPUMPE MIT DRUCKAUSGLEICH
Title (fr)
POMPE À VIDE À COMPENSATION DE PRESSION
Publication
Application
Priority
- DE 102009028831 A 20090824
- EP 2010060001 W 20100713
Abstract (en)
[origin: WO2011023448A1] A vacuum pump, in particular for use in a motor vehicle, with an inlet side for sucking in a fluid medium and an outlet side for delivering the medium which is sucked in to a surrounding area, has an outlet non-return valve on the outlet side, which outlet non-return valve counteracts a return flow of the medium out of the surrounding area, wherein the outlet side has a pressure equalization element for equalizing a vacuum in the vacuum pump with respect to the surrounding area, and the pressure equalization element is set up for counteracting the entry of damaging substances out of the surrounding area into the vacuum pump.
IPC 8 full level
F04B 37/14 (2006.01); F04C 25/02 (2006.01); F04D 19/04 (2006.01)
CPC (source: EP)
F04B 37/14 (2013.01); F04C 13/00 (2013.01); F04C 14/28 (2013.01); F04C 15/066 (2013.01); F04C 25/02 (2013.01)
Citation (search report)
See references of WO 2011023448A1
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 SE SI SK SM TR
DOCDB simple family (publication)
DE 102009028831 A1 20110303; EP 2470790 A1 20120704; IN 1495DEN2012 A 20150605; JP 2013502537 A 20130124; JP 5383917 B2 20140108; WO 2011023448 A1 20110303
DOCDB simple family (application)
DE 102009028831 A 20090824; EP 10734095 A 20100713; EP 2010060001 W 20100713; IN 1495DEN2012 A 20120217; JP 2012525954 A 20100713