EP 2908011 B1 20171108 - Motor vehicle vacuum pump
Title (en)
Motor vehicle vacuum pump
Title (de)
Kraftfahrzeug-Vakuumpumpe
Title (fr)
Pompe à vide pour véhicule automobile
Publication
Application
Priority
EP 14155617 A 20140218
Abstract (en)
[origin: WO2015124415A1] The invention relates to a motor vehicle vacuum pump (10) with a pump chamber (12), in which a pump rotor rotates in a compressing manner, an outlet chamber (14), into which the compressed gas exits from the pump chamber (12), a separation wall (22), which separates the pump chamber (12) from the outlet chamber (14), and an outlet valve (20) formed as a non-return valve in the separation wall (22), through which the compressed gas exits from the pump chamber (12) into the outlet chamber (14). The outlet valve (20) is formed by a valve opening (24) in the separation wall (22) and a valve body (40) with a closing body (42). A valve seat (30) is provided on the outlet side of the separation wall (22) around the valve opening (24), on which seat is supported the corresponding part of the closing body (42) of the valve body (40) in its closed position. The valve seat (30) and/or the corresponding part of the closing body (42) comprises several micro-grooves (32) which are oriented in the lateral direction.
IPC 8 full level
F04C 29/06 (2006.01); F04C 25/02 (2006.01); F04C 29/12 (2006.01); F04C 18/344 (2006.01)
CPC (source: EP US)
F04C 18/344 (2013.01 - EP); F04C 25/02 (2013.01 - EP US); F04C 29/06 (2013.01 - EP US); F04C 29/126 (2013.01 - EP); F04C 29/128 (2013.01 - US); F04C 18/34 (2013.01 - US); F04C 2220/10 (2013.01 - EP US); F04C 2240/10 (2013.01 - US); F04C 2240/20 (2013.01 - US); F04C 2270/13 (2013.01 - EP US)
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 2908011 A1 20150819; EP 2908011 B1 20171108; CN 106030114 A 20161012; CN 106030114 B 20180102; JP 2017503965 A 20170202; JP 6490699 B2 20190327; US 11047391 B2 20210629; US 2017009770 A1 20170112; WO 2015124415 A1 20150827
DOCDB simple family (application)
EP 14155617 A 20140218; CN 201580008803 A 20150202; EP 2015052090 W 20150202; JP 2016547523 A 20150202; US 201515115694 A 20150202