CPC F02B 41/10 (2013.01) [B64D 27/10 (2013.01); B64D 27/24 (2013.01); B64D 35/08 (2013.01); F02C 7/36 (2013.01); B64D 2027/026 (2013.01); F01D 15/10 (2013.01); F02B 37/105 (2013.01)] | 3 Claims |
2. A hybrid propulsion system comprising:
a heat engine configured to drive a heat engine shaft;
an electric motor configured to drive a motor shaft; and
a transmission system including at least one gear box, wherein the transmission system is configured to receive rotational input power from each of the heat engine shaft and the motor shaft and to convert the rotational input power to output power, wherein the heat engine shaft and the motor shaft are combined as a single common shaft connected to the transmission system, wherein the electric motor includes a first disconnect mechanism within the electric motor to allow the heat engine to rotate with the electric motor stopped and wherein the single common shaft includes a second disconnect mechanism between the electric motor and the heat engine to allow the electric motor to rotate with the heat engine stopped.
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