Temperature compensated stack of piezoelectric elements

Details Temperature compensated stack of piezoelectric elements Temperature compensated stack of piezoelectric elements

1984-06-18

1986-02-11

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

239584, 310323, 310328, 310363, H01L 4108

Patent

active

045700982

ABSTRACT:
A piezoelectric transducer comprising a lamination of piezoelectric elements including one or more elements in which the distortion has a positive temperature dependency and one or more elements in which the distortion has a negative temperature dependency. By selecting the ratio of the number of the piezoelectric elements having the positive and negative temperature dependencies, the temperature dependency of the distortion of a transducer can be eliminated. An actuator for injecting fuel into an automobile at a high speed and delicate response to external operation is provided.

REFERENCES:
patent: 1939302 (1933-12-01), Heaney
patent: 2453595 (1948-11-01), Rosenthal
patent: 3390287 (1968-06-01), Sonderegger
patent: 3437849 (1969-04-01), Treatch et al.
patent: 3495102 (1970-02-01), List et al.
patent: 3634787 (1972-01-01), Newell
patent: 3673442 (1972-06-01), Sonderegger
patent: 3673443 (1972-06-01), Siegel
patent: 3854060 (1974-12-01), Cook
patent: 4456850 (1984-06-01), Inoue et al.
patent: 4471256 (1984-09-01), Igashira et al.

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