NASA NTRS · 19740025266
Solid medium thermal engine
Abstract
A device is described which uses a single phase metallic working substance to convert thermal energy directly into mechanical energy. The device consists of a cylindrical metal tube which is free to rotate about its axis while being subjected to continuous bending moment stresses along the longitudinal axis of rotation. The stressing causes portions of the tube to be under compression while other parts are under tension which in turn causes the tube to rotate and provide mechanical energy.
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Jedlicka, J. R., Guist, L. R., Beam, R. M.. 1974-08-20. Solid medium thermal engine. https://ntrs.nasa.gov/citations/19740025266
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