Multi-mode aircraft power-split transmission system
AssigneeTextron Innovations Inc.
InventorBrett Schmidt Spicer
Life of this patent
Estimating the term…
Abstract
A multi-mode aircraft power-split-transmission system includes a rotational power input and a power-split transmission. The power-split transmission includes a sun gear, a planetary carrier, a ring gear, a first rotational power output, and a second rotational power output. The multi-mode aircraft power-split-transmission system also includes a first resistance device coupled to the first rotational power output and fixed to an airframe of the multi-mode aircraft and a second resistance device coupled to the second rotational power output and fixed to the airframe. Operation of the first resistance device causes power received from the rotational power input to be directed to the second rotational power output.
Claims20
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.
A multi-mode aircraft power-split-transmission system comprising:
- a rotational power input;
- a power-split transmission comprising:
- a ring gear;
- a first axle operable to output rotational power to a rotor of the multi-mode aircraft;
- a second axle operable to output rotational power to a ducted fan of the multi-mode aircraft;
- a first resistance device coupled to the first axle and fixed to an airframe of the multi-mode aircraft;
- a second resistance device coupled to the second axle 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.
The multi-mode aircraft power-split-transmission system of 17, comprising a second gear pawl coupled to the second resistance device and operable to hold the second axle rotationally stationary.
Dependencies are inferred from the claim text.