Externally heated engine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8312717
APP PUB NO 20090255249A1
SERIAL NO

12470539

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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An externally heated engine is provided which has a piston and a displacer. The position of the piston can be adjusted by a yoke and disk assembly on one end of a link and spacers and gaskets in the cylinder. The relative position of the displacer with respect to the piston can be changed by changing the relative position of a pair of disks in the crankshaft assembly. The displacer is caused to reciprocate by a link which is moved by a displacer cam assembly. The displacer cam assembly includes a first cam and a second cam. The first cam and the second cam each have a groove path. The displacer link follows the groove path of the cams to cause the displacer to dwell at the two ends of its stroke and to move rapidly from one end to the other.

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First Claim

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Patent Owner(s)

  • RENEWABLE THERMODYNAMICS, LLC

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoffman, Gary P Middlesex, US 10 171
Ide, Richard J Middlesex, US 4 27

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