Valve with unilaterally constrained piezoelectric bending...

Details Valve with unilaterally constrained piezoelectric bending... Valve with unilaterally constrained piezoelectric bending...

2005-09-20

2005-09-20

Fox, John (Department: 3753)

Fluid handling

Systems

Multi-way valve unit

C251S011000, C251S075000, C251S243000, C251S303000

Reexamination Certificate

active

06945276

ABSTRACT:
Valve with a displaceable actuating device that controls the movements of at least one actual sealing element for opening and closing, and the actuating device is loaded with an elastic element essentially in a perpendicular direction relative to the direction of displacement, and the longitudinal axis of the actuating device and the force exercised by the elastic element are aligned in one position of the actuating device between its two extreme positions. In order to realize a valve that can be electrically switched using minimal currents and that is characterized, in particular, by its small construction size but that is still able to achieve large regulating distances, the actuating device is a unilaterally constrained piezoelectric bending element.

REFERENCES:
patent: 3876137 (1975-04-01), Kelly et al.
patent: 4101076 (1978-07-01), Bart
patent: 5040567 (1991-08-01), Nestler et al.
patent: 6173744 (2001-01-01), Frisch et al.
patent: 6386506 (2002-05-01), Cox
patent: 6499509 (2002-12-01), Berger et al.
patent: 6595436 (2003-07-01), Kirzhner et al.

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