Power plants – Fluid motor means driven by waste heat or by exhaust energy... – Having fluid motor motive fluid treating – controlling or...
Reexamination Certificate
2006-04-18
2006-04-18
Nguyen, Hoang (Department: 3748)
Power plants
Fluid motor means driven by waste heat or by exhaust energy...
Having fluid motor motive fluid treating, controlling or...
C060S646000, C060S660000
Reexamination Certificate
active
07028476
ABSTRACT:
The invention is a positive displacement heat engine; where the engine cycle comprises the steps of Ericsson (isothermal) compression, recuperative heat addition, Brayton (adiabatic) expansion, and recuperative heat removal; whose principle is heat addition to the cycle by an afterburner in which fuel is burned with the low pressure air working fluid exhausted by the expander. The resulting combustion gases are used in a counterflow heat exchange recuperator to continually heat the high pressure air compressed by the compressor. All moving parts are only exposed to clean air, and the expander valves can be operated at temperatures comparable to current internal combustion engines. Liquid, solid or gaseous fuels can be used and control of speed and power is simple, based on keeping engine temperatures constant. The low-pressure continuous combustion avoids fuel pressurization problems and allows high efficiency, low emission combustion processes.
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Nguyen Hoang
Proe Power Systems, LLC
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