US 12,068,666 B2
Drive unit and drive assembly
Steffen Lehmann, Ettlingen (DE)
Assigned to Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
Appl. No. 17/782,176
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Nov. 5, 2020, PCT No. PCT/DE2020/100945
§ 371(c)(1), (2) Date Jun. 3, 2022,
PCT Pub. No. WO2021/110199, PCT Pub. Date Jun. 10, 2021.
Claims priority of application No. 10 2019 132 942.6 (DE), filed on Dec. 4, 2019.
Prior Publication US 2023/0043424 A1, Feb. 9, 2023
Int. Cl. H02K 9/19 (2006.01); H02K 5/20 (2006.01); H02K 5/24 (2006.01); H02K 7/00 (2006.01); H02K 7/108 (2006.01); H02K 7/116 (2006.01)
CPC H02K 9/19 (2013.01) [H02K 5/203 (2021.01); H02K 5/24 (2013.01); H02K 7/003 (2013.01); H02K 7/006 (2013.01); H02K 7/108 (2013.01); H02K 7/116 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A drive unit for a powertrain of an electrically drivable motor vehicle, comprising: a first electric rotary machine and a second electric rotary machine as well as a first shaft and a second shaft, wherein a rotor of the first electric rotary machine is connected in a non-rotatable manner to the first shaft and a rotor of the second electric rotary machine is connected in a non-rotatable manner to the second shaft, wherein the first electric rotary machine is arranged at least partly radially and axially within an area radially delimited by the second electric rotary machine, wherein a stator of the first electric rotary machine and a stator of the second electric rotary machine are mechanically fixed to each other, wherein a coolant supply device is arranged adjacently to the stators of the first and second electric rotary machines in an axial direction and by which coolant is supplied axially between and/or into the stators of the first and second electric rotary machines, wherein the first shaft has an axially extending shaft flow channel which is adjoined by at least one first transverse bore with a radial extension through which the coolant is supplied from the shaft flow channel to the rotor of the first electric rotary machine.