US 11,897,622 B2
Propeller propulsion unit comprising a heat engine and an electric motor and aircraft comprising such a propeller propulsion unit
Patrick Lieven, Fronton (FR); and Jérôme Colmagro, Toulouse (FR)
Assigned to AIRBUS OPERATIONS SAS, Toulouse (FR)
Filed by Airbus Operations SAS, Toulouse (FR)
Filed on Mar. 28, 2019, as Appl. No. 16/368,305.
Claims priority of application No. 1852804 (FR), filed on Mar. 30, 2018.
Prior Publication US 2019/0300186 A1, Oct. 3, 2019
Int. Cl. B64D 27/02 (2006.01); B64D 27/24 (2006.01); F01D 15/10 (2006.01); F02C 6/00 (2006.01); B64D 27/12 (2006.01)
CPC B64D 27/02 (2013.01) [B64D 27/12 (2013.01); B64D 27/24 (2013.01); F01D 15/10 (2013.01); F02C 6/00 (2013.01); B64D 2027/026 (2013.01); F05D 2220/323 (2013.01); F05D 2220/76 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A propeller propulsion unit, comprising at least one kinematic system comprising:
a heat engine consuming fuel;
a main shaft rotated at an output of the heat engine;
an electrical energy generator configured to generate electrical energy from the rotation of the main shaft;
an electric motor configured to generate a rotary movement as output from the electrical energy generated by the electrical energy generator;
a coupling element comprising a toothed gear and a shaft; and
a propeller rotated by the coupling element,
wherein the at least one kinematic system selectively assumes one of a first configuration or a second configuration at a given time,
wherein the toothed gear of the coupling element is movable through translational movement between a position in which the toothed gear is coupled to a toothed gear attached to the main shaft of the heat engine and a position in which the toothed gear of the coupling element is coupled to a toothed gear of the electric motor,
wherein, in the first configuration, the coupling element is coupled to and driven by a rotational output of the electric motor,
wherein, in the second configuration, the coupling element is coupled to and driven by a rotation of the main shaft.