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Heat Engine Based on Shape Memory Alloys.
Patent, Filed 1 Dec 89, patented 3 Jul 90,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
A tubular gear made of shape memory alloy in sheet form, having longitudinal corrugations and being floatingly supported for rotation about an axis fixedly spaced from the rotational axis of a roller gear in meshing engagement with the corrugations. The tubular gear is sequentially deformed by exposure to radiated heat causing the shape memory alloy to expand circumferentially. Said meshing engagement with differential temperature regions established by restricted exposure to the radiated heat induces and sustains rotation of the tubular gear to convert the heat energy into mechanical energy. Patents. js
APPROVED FOR PUBLIC RELEASE