Energy harvesting heat engine and actuator
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United States of America Patent
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Oct 18, 2022
Grant Date -
Jun 24, 2021
app pub date -
Jan 11, 2021
filing date -
Jul 9, 2018
priority date (Note) -
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Abstract
A rotary heat engine including a central crankshaft and a plurality of cylinder assemblies and a heat exchanger assembly. At least one of the plurality of cylinders, and preferably all of the plurality of cylinders includes a cylinder member, a piston member slidably positionable within the cylinder member, a connecting rod and a rolling diaphragm. The rolling diaphragm is positioned between the piston and the cylinder assembly to define a working volume which is in fluid communication with an opening that is in communication with the heat exchanger body.
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