Piezo valve

Details Piezo valve Piezo valve

1992-09-29

1994-09-06

Michalsky, Gerald A.

Fluid handling

Systems

Multi-way valve unit

13762544, 25112906, F15B 13044

Patent

active

053438949

ABSTRACT:
For a piezo valve (1) the sealable surface of the seat (13) of the controllable medium connection is so large that the pressure-induced closing force of the sealing region (14) of the bending element (4) that is generated in accordance with the medium pressure acting in the second switch position is greater than the elastically induced counterforce and smaller than the total of this counterforce and the piezo reset force acting upon application of a corresponding control voltage. Thus, both switch positions of the valve can also be held for a long period of time following pulsed voltage operation without any additional voltage application.

REFERENCES:
patent: 4535810 (1985-08-01), Duder et al.
patent: 4617952 (1986-10-01), Fujiwara et al.
patent: 5163463 (1992-11-01), Gassman et al.
G 86 07 0940, dated Nov. 2, 1989, German Gebrauchsmuster.

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