High Dynamic Density Range Thermal Cycle Engine
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United States of America Patent
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Issued Date -
Aug 13, 2020
app pub date -
Nov 8, 2017
filing date -
Nov 20, 2016
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Abstract
An engine utilizing multiple closed loop heat exchangers. The engine makes use of a first exchanger dedicated to a given chamber of a piston assembly. This exchanger is configured to provide both heating and cooling to the chamber for changing the volume thereof in stroking the piston. The second exchanger is configured similarly to provide both heating and cooling to another chamber at the opposite side of the piston for correspondingly facilitating a change in its volume as the piston is stroked. This unique configuration allows for the working substance in the chambers, generally an operating CO2 fluid, to effectively remain in a supercritical state for the substantial duration of the thermal cycle.
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