Patent ID: 11905914
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 14:
15. A powerplant, comprising:
a pre-burner;
a combustor fluidly coupled with and downstream of the pre-burner;
a power turbine fluidly coupled with and downstream of the combustor;
a mechanical load rotatably driven by the power turbine; and
a propellant system configured to direct fluid oxygen and fluid hydrogen to the pre-burner to provide an oxygen rich fuel mixture for combustion within the pre-burner, and the propellant system further configured to direct the fluid hydrogen to the combustor for combustion within the combustor with oxygen within combustion products received from the pre-burner, wherein the propellant system comprises
a hydrogen reservoir;
a hydrogen turbopump including a turbopump turbine and a turbopump pump, the turbopump turbine fluidly coupled with and between the pre-burner and the combustor, the turbopump pump rotatably driven by the turbopump turbine, and the turbopump pump configured to direct the fluid hydrogen from the hydrogen reservoir to the pre-burner and to the combustor; and
a heater configured for heating the fluid hydrogen within the hydrogen reservoir.