公开(公告)号：US11982235B2

公开(公告)日：2024-05-14

申请号：US18181626

申请日：2023-03-10

Applicant: ROLLS-ROYCE plc

Inventor： Jonathan E. Holt

IPC: F02C7/224 ,  F02C7/236 ,  F02C3/22

CPC classification number: F02C7/236 ,  F02C7/224 ,  F02C3/22 ,  F05D2220/62 ,  F05D2260/213

Abstract: Disclosed is a fuel system for a gas turbine engine having a core exhaust and a combustion section. The system comprises a fuel pump for fluid communication with a fuel reservoir; a driving turbine for driving the fuel pump; and an air feed to drive the driving turbine, the air feed being fluidly connectable to the core exhaust of the gas turbine engine. Also disclosed is a fuel system comprising: a fuel pump for fluid communication with a fuel reservoir; a fuel line from the fuel pump for fluid communication with the combustion section of the gas turbine engine; and an air feed to a heat exchanger, the air feed being fluidly connectable to the core exhaust of the gas turbine engine, wherein the fuel line is in thermal communication with the air feed within a heat exchanger.

公开(公告)号：US12228077B2

公开(公告)日：2025-02-18

申请号：US18183989

申请日：2023-03-15

Applicant: ROLLS-ROYCE plc

Inventor： Jonathan E. Holt ,  Richard Sharpe

IPC: F02C7/224 ,  B64D13/02 ,  B64D37/30 ,  F02C7/32

Abstract: Disclosed is a fuel system for a gas turbine engine. The system comprises a fuel pump for fluid communication with a fuel reservoir; a driving turbine for driving the fuel pump; and a source of compressed air flow to drive the driving turbine. The source of compressed air may be the engine core, a dedicated fuel system compressor or the compressor of a cabin blower system.