EP 3337980 A1 20180627 - LUBRICATED AUTOMOTIVE VACUUM PUMP
Title (en)
LUBRICATED AUTOMOTIVE VACUUM PUMP
Title (de)
GESCHMIERTE VAKUUMPUMPE FÜR FAHRZEUGE
Title (fr)
POMPE À VIDE LUBRIFIÉE POUR AUTOMOBILE
Publication
Application
Priority
EP 2015069022 W 20150819
Abstract (en)
[origin: WO2017028914A1] The invention refers to a lubricated automotive vacuum pump (10) for providing low-pressure for an automotive actuator, comprising a pump housing (12) housing a pump chamber (16) which is radially defined by a circumferential chamber surface (22), a pump rotor (30) rotating around an axial rotation axis (13), the pump rotor (30) being provided with a rotor body (32) with a vane slit (34) wherein a shiftable vane (36) is shiftably supported which separates the pump chamber (16) into rotating compartments (161, 162), a friction bearing (50) for rotatably supporting the pump rotor (30) at the static pump housing (12), the friction bearing (50) being defined by a cylindrical stator friction bearing surface (52) of the pump housing (12) and a corresponding cylindrical rotor bearing surface (51) of the rotor (30), a pump gas inlet (15) and a separate pump gas outlet (38), an oil inlet channel (60) for providing lubrication oil to the pump rotor (30), and a separate oil outlet opening (411, 412) at the rotor body (32) and an automatic mechanical switchover valve (40) for temporarily connecting the oil outlet opening (411, 412) with an oil drain (70).
IPC 8 full level
F04C 25/02 (2006.01); F04C 18/344 (2006.01); F04C 29/02 (2006.01)
CPC (source: EP US)
F04C 18/3441 (2013.01 - EP US); F04C 25/02 (2013.01 - EP US); F04C 29/028 (2013.01 - EP US); F04C 2220/10 (2013.01 - US)
Citation (search report)
See references of WO 2017028914A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017028914 A1 20170223; CN 107923400 A 20180417; EP 3337980 A1 20180627; US 2018245592 A1 20180830
DOCDB simple family (application)
EP 2015069022 W 20150819; CN 201580082180 A 20150819; EP 15759676 A 20150819; US 201515753172 A 20150819