EP 3459157 A1 20190327 - ELECTRIC MACHINE
Title (en)
ELECTRIC MACHINE
Title (de)
ELEKTRISCHE MASCHINE
Title (fr)
MACHINE ÉLECTRIQUE
Publication
Application
Priority
- DE 102016208770 A 20160520
- EP 2017058272 W 20170406
Abstract (en)
[origin: WO2017198389A1] The invention relates to an electric machine (1) comprising a stator (2) and a rotor (3). The rotor (3) is rotatably mounted within the stator (2) and has a rotor shaft (4) which is in the form of a hollow shaft and by means of which a cavity (5) is formed that is provided for receiving a coolant. The rotor shaft (4) has at least two shoulders (8, 8', 9, 9') at at least one end section (6, 7), and thus at least three rotor shaft sections, namely a first rotor shaft section (10, 10'), a second rotor shaft section (11, 11'), and a third rotor shaft section (12, 12'), with different diameters are formed. A flow element (13, 13') is arranged in the cavity (5) of the rotor shaft (4) in the region of the second rotor shaft section (11, 11'), and at least one radial outlet opening (14, 14') is formed in the casing of the rotor shaft (4) in the region of the second rotor shaft section (11, 11'), said outlet opening fluidically connecting the cavity (5) of the rotor shaft (4) to an outer region of the rotor shaft (4).
IPC 8 full level
H02K 1/26 (2006.01); H02K 1/32 (2006.01); H02K 9/19 (2006.01); H02K 17/16 (2006.01)
CPC (source: EP US)
H02K 1/26 (2013.01 - EP US); H02K 1/30 (2013.01 - US); H02K 1/32 (2013.01 - EP US); H02K 9/19 (2013.01 - EP US); H02K 17/16 (2013.01 - US); H02K 17/168 (2023.05 - 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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017198389 A1 20171123; CN 109155549 A 20190104; CN 109155549 B 20200616; DE 102016208770 A1 20171123; DE 102016208770 B4 20181011; EP 3459157 A1 20190327; US 11043866 B2 20210622; US 2019312475 A1 20191010
DOCDB simple family (application)
EP 2017058272 W 20170406; CN 201780031307 A 20170406; DE 102016208770 A 20160520; EP 17715929 A 20170406; US 201716301518 A 20170406