EP 3374640 A1 20180919 - ELECTRIC MOTOR VEHICLE VACUUM PUMP
Title (en)
ELECTRIC MOTOR VEHICLE VACUUM PUMP
Title (de)
ELEKTRISCHE-KFZ-VAKUUMPUMPE
Title (fr)
POMPE À VIDE ÉLECTRIQUE DE VÉHICULE AUTOMOBILE
Publication
Application
Priority
EP 2015076406 W 20151112
Abstract (en)
[origin: WO2017080599A1] The invention relates to an electric motor vehicle vacuum pump (10) with a brushless, electronically commutated, sensorless drive motor (13), wherein the electric motor vehicle vacuum pump (10) has a pump housing (12) which forms a pump chamber (16) and a pump rotor (18) compressively rotating in the pump chamber (16). The pump rotor (18) is rotatable in a forward and a backward direction of rotation. The electric motor vehicle vacuum pump (10) additionally has a forward outlet opening (47) and a separate backward outlet opening (46) which connect the pump chamber (16) to a pump outlet (49), wherein a check valve (281, 282) opening in the outlet direction is provided between outlet opening (46, 47) and pump outlet (49). The electric motor vehicle vacuum pump (10) additionally has a forward inlet opening (46) and a separate backward inlet opening (47) which connect the pump chamber (16) to a pump inlet (48), wherein a check valve (301, 302) opening in the inlet direction is provided between the inlet opening (46) and the pump inlet (48).
IPC 8 full level
F04C 25/02 (2006.01); F04C 18/344 (2006.01)
CPC (source: EP)
F04C 18/3441 (2013.01); F04C 25/02 (2013.01); F04C 28/04 (2013.01)
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 2017080599 A1 20170518; EP 3374640 A1 20180919; EP 3374640 B1 20240306
DOCDB simple family (application)
EP 2015076406 W 20151112; EP 15794896 A 20151112