公开(公告)号：US20230192309A1

公开(公告)日：2023-06-22

申请号：US17553756

申请日：2021-12-16

Applicant: Rolls-Royce Corporation

Inventor： David Locascio ,  Michael Dougherty ,  Stephen Long ,  Peter Schenk

IPC: B64D33/08 ,  B64D27/24 ,  H01M10/613 ,  H01M10/625 ,  F04B17/03 ,  F04B17/02

CPC classification number: B64D33/08 ,  B64D27/24 ,  H01M10/613 ,  H01M10/625 ,  F04B17/03 ,  F04B17/02 ,  B64C11/002

Abstract: 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.

公开(公告)号：US12024308B2

公开(公告)日：2024-07-02

申请号：US17553756

申请日：2021-12-16

Applicant: Rolls-Royce Corporation

Inventor： David Locascio ,  Michael Dougherty ,  Stephen Long ,  Peter Schenk

IPC: B64D33/08 ,  B64D27/24 ,  F04B17/02 ,  F04B17/03 ,  H01M10/613 ,  H01M10/625 ,  B64C11/00

CPC classification number: B64D33/08 ,  B64D27/24 ,  F04B17/02 ,  F04B17/03 ,  H01M10/613 ,  H01M10/625 ,  B64C11/002

Abstract: 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.