US 11,926,430 B1
Multi-mode aircraft power-split transmission system
Brett Schmidt Spicer, Watauga, TX (US)
Assigned to Textron Innovations Inc., Providence, RI (US)
Filed by Textron Innovations Inc., Providence, RI (US)
Filed on Dec. 13, 2022, as Appl. No. 18/080,567.
Int. Cl. B64D 35/00 (2006.01); F16H 1/28 (2006.01); F16H 57/10 (2006.01)
CPC B64D 35/00 (2013.01) [F16H 1/28 (2013.01); F16H 57/10 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multi-mode aircraft power-split-transmission system comprising:
a rotational power input;
a power-split transmission comprising:
a sun gear;
a planetary carrier;
a ring gear;
a first rotational power output; and
a second rotational power output;
a first resistance device coupled to the first rotational power output and fixed to an airframe of the multi-mode aircraft;
a second resistance device coupled to the second rotational power output and fixed to the airframe; and
wherein operation of the first resistance device causes power received from the rotational power input to be directed to the second rotational power output.