Power plants – Motor operated by expansion and/or contraction of a unit of...
Patent
1989-01-30
1991-05-21
Husar, Stephen F.
Power plants
Motor operated by expansion and/or contraction of a unit of...
60512, F01B 2908
Patent
active
050164414
ABSTRACT:
This invention concerns a high efficiency piston-cylinder engine whose cylinder is equipped with means to add heat to a working gas in the cylinder. Other important components include: a heat regenerator, one end of which is connected to the cylinder; and piston position controlled valves for timing the flow of compressed working gas into, and expanded working gas from, the regenerator. A quantity of fresh compressed working gas is introduced into the regenerator, with the residual working gas in the regenerator and cylinder being at the same pressure as the compressed working gas introduced into the regenerator. The fresh and residual working gas is then expanded with the addition of heat. The fresh working gas is exhausted after the expansion step, and the residual working gas remaining in the regenerator and cylinder is compressed prior to receipt of fresh compressed working gas for the next cycle. The alternate expansions (which result in the addition of heat from the regenerator material to the surrounding working gas) and compressions (which result in the addition of heat from the surrounding working gas to the regenerator material) enable the regenerator to perform its heat regeneration function.
REFERENCES:
patent: 3956894 (1976-05-01), Tibbs
patent: 4327550 (1982-05-01), Knoos
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