US 11,667,391 B2
Dual engine hybrid-electric aircraft
Jean Thomassin, Ste Julie (CA); and Todd A. Spierling, Rockford, IL (US)
Assigned to Pratt & Whitney Canada Corp., Longueuil (CA); and Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed by Pratt & Whitney Canada Corp., Longueuil (CA); and Hamilton Sundstrand Corporation, Charlotte, NC (US)
Filed on Aug. 25, 2020, as Appl. No. 17/2,715.
Claims priority of provisional application 62/891,738, filed on Aug. 26, 2019.
Prior Publication US 2021/0300576 A1, Sep. 30, 2021
Int. Cl. B64D 27/24 (2006.01); B64D 35/08 (2006.01); B64D 27/02 (2006.01)
CPC B64D 27/24 (2013.01) [B64D 35/08 (2013.01); B64D 2027/026 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An aircraft propulsion system, comprising:
first and second hybrid-electric power plants for delivering power to respective air movers for propelling an aircraft, wherein each hybrid-electric power plant includes a respective thermal engine and a respective electrical motor arranged in a parallel drive configuration; and
a second thermal engine operatively connected to the electrical motor of the first hybrid-electric power plant and the electrical motor of the second hybrid-electric power plant through an electrical machine and a power conversion electronics system to power the electrical motors of the first and second hybrid-electric power plants.