Patent ID: 9257883
Filing Date: 2016-02-09
CPC Classification: H02K

Claim Text:
1. An electric machine, comprising: a stator, a rotor interacting magnetically with the stator; a housing in surrounding relation to the stator and the rotor, said housing having a ventilation side; a hollow shaft configured for arrangement of the rotor and mounted on the housing, said shaft being sized to extend axially beyond the housing; a radial fan arranged in fixed rotative engagement on the hollow shaft on the ventilation side of the housing, said radial fan having a fan blade which has a section sized to extend axially away from the housing to a greater extent than the hollow shaft; and a guide element arranged in the hollow shaft and having a radially extending plate which extends axially further away from the housing than an end side of the hollow shaft on the ventilation side and is axially spaced from the end side of the hollow shaft so as to define a cooling channel for flow of a coolant from the hollow shaft radially outwards by the section of the fan blade of the radial fan through a passage between the end side of the hollow shaft on the ventilation side and the plate into said radial fan.