US 12,214,894 B1
Motor gearbox assembly with layshaft for EVTOL aircraft
Scott Graves, Felton, CA (US)
Assigned to Archer Aviation Inc., San Jose, CA (US)
Filed by Archer Aviation Inc., San Jose, CA (US)
Filed on May 17, 2024, as Appl. No. 18/667,065.
Int. Cl. F16H 3/091 (2006.01); B64C 29/00 (2006.01); B64D 27/33 (2024.01); B64D 35/021 (2024.01)
CPC B64D 35/021 (2024.01) [B64C 29/0033 (2013.01); B64D 27/33 (2024.01); F16H 3/0915 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A motor gearbox assembly, comprising:
a gearbox housing;
a motor inside the gearbox housing, the motor comprising a stator and a rotor that is rotatable with respect to the stator;
a main power output shaft, the rotor being rotatably mounted on the main power output shaft and coupled to a first rotor pinion gear;
a layshaft rotatably mounted in the gearbox housing outside of the motor;
a first layshaft gear at a first axial end of the layshaft on a first side of the rotor and the stator, the first layshaft gear being engaged with the first rotor pinion gear; and
a second layshaft gear at a second axial end of the layshaft, the second axial end being on a second side of the rotor and the stator that is opposite the first side, the second layshaft gear being engaged with a power output gear coupled to the main power output shaft.