Power plants – Motor operated by expansion and/or contraction of a unit of... – Mass is a solid
Patent
1976-02-02
1977-07-26
Ostrager, Allen M.
Power plants
Motor operated by expansion and/or contraction of a unit of...
Mass is a solid
F03G 706
Patent
active
040374114
ABSTRACT:
A thermal energy converting assembly including a support housing rotatably supporting a central hub with a plurality of temperature sensitive metal alloy strips extending radially from the hub for coacting with a cam which sinusoidally strains the strips during one phase and allows the unstraining of the strips during a second phase. The strips are made of a material which undergoes a thermoelastic, martensitic phase transformation whereby in a relatively cold condition it takes less energy to strain the strips than is produced from the strips as they become unstrained when subsequently subjected to a hotter condition. In the first embodiment the strips are strained by torsional twisting as a result of a lever arm attached to the ends of the strips and reacting with the cam whereas in the second embodiment the strips are strained by bending as push rods are associated with the distal ends of the strips and have rollers thereon for coacting with the cam.
REFERENCES:
patent: 3403238 (1968-09-01), Buehler et al.
patent: 3430441 (1969-03-01), Adams
patent: 3652969 (1972-03-01), Wilson et al.
patent: 3913326 (1975-10-01), Banks
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