Rolls-Royce Corporation

David Locascio

Peter Michael Schenk

Rigoberto Jorge Rodriguez

Stephen Andrew Long

Michael P Dougherty

Stephen P Long

A propulsion system for an aircraft includes a propeller assembly, a controller, and a pump system. The propeller assembly includes a propeller and a power system, the power system including an electric motor and a motor converter. The controller is connected to the power system and configured to switch the power system into a power-off arrangement in response to a temperature of the motor converter being greater than a threshold temperature. The pump system includes a pump and a coolant circuit that cools the motor converter. The pump is coupled to the propeller and to the motor such that rotation of either drives the pump.

Propeller driven backup cooling pump system for electric motor converter

The present disclosure is directed to an aircraft with an accessory system configured to be powered independent of the primary propulsion system by a ram air turbine power system. The ram air turbine power system illustratively includes an accessory generator integrated with a turbine rotor as well as other components so as to manage space claim and offer unique functionality.

Aircraft accessory unit powered by ram air turbine

Aircraft with ram air turbine disk with generator having blade shroud ring integrated magnets

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Indianapolis, IN, United States of America

David Locascio