公开(公告)号：US12085280B2

公开(公告)日：2024-09-10

申请号：US18176784

申请日：2023-03-01

Applicant: ROLLS-ROYCE plc

Inventor： Nathan Clark ,  Robert J. Miller ,  Chloe J Palmer ,  Jacopo Tacconi

IPC: F23R3/00 ,  F02C7/224 ,  F02C7/36

CPC classification number: F23R3/005 ,  F02C7/224 ,  F02C7/36 ,  F05D2260/40311

Abstract: A combined cycle engine is formed of a gas turbine cycle coupled with a fuel expansion cycle in which fuel for the gas turbine cycle is the working fluid of the fuel expansion cycle. The fuel expansion cycle comprises, in flow series, a fuel pump for pumping a cryogenic fuel for the gas turbine cycle, a first heat exchanger for heating the fuel, an expander to recover power by expansion of the fuel and to thereby drive a load, and a second heat exchanger to reheat the fuel. The gas turbine cycle comprises, in flow series, a compressor, a combustor for combustion of reheated fuel delivered from the second heat exchanger, and a turbine configured to drive the compressor. The first heat exchanger and the second heat exchanger are stationed downstream of the combustor and configured to transfer heat from combustion products to the fuel in the fuel expansion cycle.