Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1985-08-16
1986-06-17
Budd, Mark O.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310323, H01L 4108
Patent
active
045958564
ABSTRACT:
A piezoelectric fluidic power supply comprises two piezoelectric devices (30, 31) connected both electrically and fluidically. Each device has a movable piston end (26, 27) which extends into a corresponding fluid chamber (23, 24), each piston variably restricting fluid flow through its corresponding fluid chamber. The first piezoelectric device, responding to fluid pressure changes, acts as a power generating device (30). The second piezoelectric device, responding to the electric power flow of the power generating device acts as a cycle control device (31) by modulating the fluid pressure on the first device. This arrangement effects a cycling of the two pistons, consequently generating electric power. Such an arrangement provides integral fluidic feedback control with inherent impedance matching between the fluid and the piezoelectric components.
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Budd Mark O.
Swiatocha John
United Technologies Corporation
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