US 11,843,293 B2
Multi-rotor electric machine
Antwan Shenouda, Mississauga (CA)
Assigned to PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed by PRATT & WHITNEY CANADA CORP., Longueuil (CA)
Filed on Jan. 6, 2023, as Appl. No. 18/093,921.
Application 18/093,921 is a continuation of application No. 17/325,845, filed on May 20, 2021, granted, now 11,569,718.
Application 17/325,845 is a continuation of application No. 16/186,730, filed on Nov. 12, 2018, granted, now 11,043,884, issued on Jun. 22, 2021.
Claims priority of provisional application 62/723,515, filed on Aug. 28, 2018.
Prior Publication US 2023/0155466 A1, May 18, 2023
Int. Cl. H02K 16/02 (2006.01); F16H 1/22 (2006.01); H02K 7/116 (2006.01)
CPC H02K 16/02 (2013.01) [F16H 1/227 (2013.01); H02K 7/116 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A multi-rotor electric machine comprising:
a stator;
a first rotor magnetically coupled to the stator and rotatably mounted relative to the stator;
a second rotor magnetically coupled to the stator and rotatably mounted relative to the stator; and
a gear drivingly coupled to both the first and second rotors,
wherein:
the first rotor and the second rotor are energized by a common winding;
the gear is rotatable about a gear axis; and
the second rotor is disposed radially inwardly of the first rotor relative to the gear axis.