Energy transducer and method

Details Energy transducer and method Energy transducer and method

2011-06-28

2011-06-28

Budd, Mark (Department: 2837)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S328000

Reexamination Certificate

active

07969069

ABSTRACT:
The invention is an energy transducer that utilizes a material's internal energy as an energy source by operating in a cycle where there is a net loss in the material's internal energy without the need to raise the temperature of the material above ambient temperature. The invention is accomplished by the use of selected materials in which the material's mechanical strain, magnetization or electric polarization can be controlled by cross coupling forces, and where the cross coupling coefficients are not equal to each other in finite operating regions.

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patent: 5880542 (1999-03-01), Leary et al.
patent: 6139648 (2000-10-01), Wun-Fogle et al.
patent: 6870716 (2005-03-01), Gill
patent: 7218067 (2007-05-01), Marioni
patent: 7255290 (2007-08-01), Bright et al.

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