US 12,007,016 B2
Axle drive for a motor vehicle
Thomas Kölbl, Ruderting (DE); Stephan Brandl, Salzweg (DE); Heidi Bartlsperger, Hauzenberg (DE); Nils Trümper, Passau (DE); Christina Weber, Hinterschmiding (DE); Sophia Schubert, Passau (DE); and Alois Biereder, Tiefenbach (DE)
Assigned to ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed by ZF Friedrichshafen AG, Friedrichshafen (DE)
Filed on Jun. 8, 2023, as Appl. No. 18/331,752.
Claims priority of application No. 102022205853.4 (DE), filed on Jun. 8, 2022.
Prior Publication US 2023/0400092 A1, Dec. 14, 2023
Int. Cl. H02K 9/19 (2006.01); B60K 17/16 (2006.01); F16H 37/08 (2006.01); F16H 57/04 (2010.01); H02K 7/08 (2006.01); H02K 7/116 (2006.01)
CPC F16H 57/0476 (2013.01) [B60K 17/165 (2013.01); F16H 37/0813 (2013.01); F16H 57/0424 (2013.01); F16H 57/0471 (2013.01); H02K 7/083 (2013.01); H02K 7/116 (2013.01); H02K 9/19 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An axle drive for a motor vehicle, comprising:
an electric machine coupled by a rotor shaft to a transmission for the axle drive,
wherein a torque can be transferred from the electric machine to an intermediate shaft with a first gear stage, and from the intermediate shaft to a second gear train with a second gear stage, and
wherein the rotor shaft or a shaft segment coupled to the rotor shaft is supported in a bearing element; and
a fluid supply configured to convey oil into an intermediate space between the bearing element and a side shaft on the axle drive through a fluid channel, and from the intermediate space into a rotor chamber in the electric machine, wherein the rotor shaft and/or the shaft segment has a conical inner surface opening toward the rotor chamber.