Laminated type piezoelectric apparatus

Details Laminated type piezoelectric apparatus Laminated type piezoelectric apparatus

1990-11-19

1993-05-11

Rosenthal, Arnold

Valves and valve actuation

Fluid actuated or retarded

Fluid link or column actuator

25112906, 123 9012, 123 9013, F16K 3102, F01L 902, F01L 904

Patent

active

052094537

ABSTRACT:
A piezoelectric apparatus includes a piezoelectric device which is biased by a fluid force instead of a spring. Since the fluid force can be maintained within a predetermined value even after the piezoelectric device has been used number of times, and since the fluid force can be modulated by fluid pressure providing means and valve means when the fluid force is decreased from the predetermined valve, the present piezoelectric apparatus can maintain the initial pressure on the piezoelectric device.

REFERENCES:
patent: 4762300 (1988-08-01), Inagaki et al.

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