Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1986-09-08
1988-04-19
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310314, 310323, 722531, 72286, 156 47, 156 51, 164 48, 164501, 219221, 425113, 425325, H01L 4108
Patent
active
047392100
ABSTRACT:
The invention relates to a method of and a device for simultaneously generating heat energy and oscillation energy. In the method heat is generated by induction heating and oscillations are created by means of at least piezoelectric elements. Previously a resonance circuit formed by a series connection of an inductive component and a capacitive, piezoelectric component has been used for the generation of oscillations only. A disadvantage of this kind of circuit has been that the circuit is difficult to control on account of the narrow resonance region of the piezoelectric element. This advantage is avoided in the solution according to the invention in such manner that one and the same resonance circuit formed by a series connection of an inductive and capacitive element generates both heat energy and oscillation energy.
REFERENCES:
patent: 2101272 (1937-12-01), Scott
patent: 3131515 (1964-05-01), Mason
patent: 3148289 (1964-09-01), Pijls et al.
patent: 3351393 (1967-11-01), Emmerich
patent: 3452273 (1969-06-01), Foster
patent: 4443731 (1984-04-01), Butler et al.
Budd Mark O.
Oy Nokia AB
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