公开(公告)号：US20230182917A1

公开(公告)日：2023-06-15

申请号：US17988371

申请日：2022-11-16

Applicant: ROLLS-ROYCE plc

Inventor： Gareth E. MOORE ,  Paul R. DAVIES ,  Stephen M. HUSBAND ,  David R. TRAINER ,  David P. SCOTHERN ,  Luke GEORGE ,  Douglas M. M. HERBERT

IPC: B64D31/06 ,  B64D27/24 ,  B64D27/10 ,  F01D15/10

CPC classification number: B64D31/06 ,  B64D27/24 ,  B64D27/10 ,  F01D15/10 ,  F05D2220/76 ,  F05D2220/323 ,  B64D2221/00 ,  B64D2027/026

Abstract: Multi-engine aircraft power and propulsion systems and methods of starting the engines of multi-engine aircraft disclosed, including supplying electrical power from an electrical power source to electric machines of the a first gas turbine engine and operating electric machines as motors to drive rotation of spools of the first gas turbine engine; starting the first gas turbine engine by lighting combustion equipment of the first gas turbine engine; operating the electric machines of the first gas turbine engine as generators to extract mechanical power and generate electrical power from spools of the first gas turbine engine; transferring the electrical power to electric machines of a second gas turbine engine and operating the electric machines as motors to drive rotation of spools of the second gas turbine engine; and starting the second gas turbine engine by lighting combustion equipment of the second gas turbine engine.