| 摘要 |
An engine ( 400 ) is disclosed and comprises: a compressor ( 428 ) which periodically defines a chamber and carries out a pressurization process wherein the chamber volume is decreased to produce pressurized air; a combuster ( 426 ) which combusts fuel with the pressurized air to produce primary exhaust; an air motor ( 408 ) which is driven by the primary exhaust to produce power and secondary exhaust; an expander ( 410 ) which expands the secondary exhaust to produce tertiary exhaust and power; and a shaft ( 314 ) which directs power produced by the motor ( 408 ) and the expander ( 410 ) to the compressor ( 428 ) and any load. The combuster ( 426 ) is adapted to receive varying amounts of fuel, thereby to vary the power to the load. The compressor ( 428 ), during pressurization. releases air from the chamber such that the chamber pressure during pressurization and the primary exhaust pressure is substantially constant at steady state conditions, said constant being a function of the load being driven by the power.
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