US 11,958,621 B1
Systems and methods for, and components of, gearboxes 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 Dec. 6, 2023, as Appl. No. 18/531,357.
Application 18/531,357 is a continuation of application No. 18/476,797, filed on Sep. 28, 2023.
Application 18/476,797 is a continuation of application No. 18/298,548, filed on Apr. 11, 2023, granted, now 11,820,523, issued on Nov. 21, 2023.
Claims priority of provisional application 63/378,680, filed on Oct. 7, 2022.
Claims priority of provisional application 63/378,536, filed on Oct. 6, 2022.
Int. Cl. B64D 27/24 (2006.01); B64C 11/30 (2006.01); B64C 27/12 (2006.01); B64C 27/54 (2006.01); B64C 29/00 (2006.01); B64D 33/08 (2006.01); B64D 35/02 (2006.01); H02K 5/20 (2006.01); H02K 7/08 (2006.01); H02K 7/116 (2006.01); H02K 9/19 (2006.01); H02K 11/33 (2016.01); H02K 7/00 (2006.01)
CPC B64D 27/24 (2013.01) [B64C 27/54 (2013.01); B64C 29/0008 (2013.01); B64C 29/0033 (2013.01); B64D 33/08 (2013.01); B64D 35/02 (2013.01); H02K 5/203 (2021.01); H02K 7/08 (2013.01); H02K 7/116 (2013.01); H02K 9/19 (2013.01); H02K 11/33 (2016.01); H02K 7/006 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An electrical propulsion system for a vertical take-off and landing (VTOL) aircraft possessing a lightning ground path, the electrical propulsion system comprising:
at least one electrical engine mechanically connected directly or indirectly to an aircraft frame of the VTOL aircraft and electrically connected to an electrical power source, the electrical engine having:
an electrical motor having a stator and a rotor;
a gearbox assembly comprising:
a sun gear;
at least one planetary gear;
a ring gear; and
a planetary carrier; and
a bearing located in the electrical engine that provides a grounding path from a propeller flange assembly to the aircraft frame.