Propulsion unit with selective coupling means
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United States of America Patent
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May 26, 2020
Grant Date -
Nov 9, 2017
app pub date -
Nov 24, 2015
filing date -
Nov 27, 2014
priority date (Note) -
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Abstract
A propulsion unit, notably for an aircraft, including a turbomachine; a propeller that can be selectively coupled to the turbomachine; a rotary electrical machine able to drive at least the turbomachine, and selective coupling of the rotary electric machine to the propeller and/or the turbomachine that is able to couple only the propeller to the rotary electrical machine during a defined stage of operation of the propulsion unit and that is able to couple or not couple the rotary electric machine to a gas generator and/or a free turbine of the turbomachine.
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