Patent ID: 11952946
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
1. A turbine engine comprising:
a compressor;
a combustor;
a turbine;
a gaspath passing downstream from the compressor through the combustor and then through the turbine;
a fuel source;
a fuel flowpath from the fuel source to the combustor; and
a heat exchanger for transferring heat from the gaspath to the fuel flowpath,
wherein the heat exchanger comprises:
an inner wall in heat transfer relation with the gaspath;
an outer wall;
tubes between the inner wall and the outer wall bounding respective segments of the fuel flowpath; and
a heat transfer fluid between the inner wall and the outer wall and in heat transfer relation with the tubes and the inner wall
wherein the turbine engine further comprises:
a heat transfer fluid flowpath for the heat transfer fluid passing downstream through the heat exchanger and being a recirculating flowpath;
a pump along the heat transfer fluid flowpath for pumping the heat transfer fluid; and
a pressure sensor along the heat transfer fluid flowpath.