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US 2026/0275905 A1Published application
Compounded turbo power unit with boost combustor
AssigneeRtx Corporation
InventorsSteven W. Burd, Joseph B. Staubach, David Lei Ma
Life of this patent
Estimating the term…
Abstract
An aircraft power system includes an internal combustion core engine where an inlet air is mixed with a fuel and ignited to generate shaft power and a primary gas flow, a boost combustor where a portion of the primary gas flow from the core engine is combined with fuel and ignited to generate a boosted gas flow, and a drive turbine that includes a drive output shaft wherein the boosted gas flow is expanded to generate shaft power.
Claims20
An aircraft power system comprising:
- an internal combustion core engine where an inlet air is mixed with a fuel and ignited to generate shaft power and a primary gas flow;
- a boost combustor where a portion of the primary gas flow from the core engine is combined with fuel and ignited to generate a boosted gas flow;
- a drive turbine including a drive output shaft wherein the boosted gas flow is expanded to generate shaft power;
- and
- a power turbine rotatable independent of the drive turbine, wherein the boosted gas flow from the boost combustor is expanded to drive the power turbine and generate shaft power.
2 more elements
A method of generating power for an aircraft power system comprising:
- communicating compressed inlet air to an internal combustion core engine;
- generating a first drive output with the internal combustion core engine through a primary output shaft;
- expanding a primary gas flow from the core engine through a drive turbine coupled to an inlet compressor to compress the inlet air;
- generating a boosted gas flow by igniting a mixture of fuel and a portion of the primary gas flow from the drive turbine in a boost combustor;
- and
- driving a second output shaft separate from the primary output shaft with a power turbine by expanding the boosted gas flow through a power turbine.
3 more elements
Dependencies are inferred from the claim text.