System for controlling fluid flow

Details System for controlling fluid flow System for controlling fluid flow

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 31/02 (2006.01) F16K 31/00 (2006.01)

Patent

CA 2081290

This invention relates to a piezoelectric valve for controlling fluid flow and, more particularly to such a valve which is neither solenoid or servo assisted. In this specification and claims, reference to fluid(s) includes both liquid(s) and gas(es). One particular form of piezoelectric valve for controlling fluid flow comprises a housing, a cavity within the housing, piezoelectric valve disc element and a valve seat, inlet and outlet ducts for leading fluid into and out from the cavity and disposed on opposite sides of the valve disc element and means for supporting the valve disc element at a central region of the element with the peripheral region of the disc disposed for cooperation with the valve seat so that upon actuation of the element by a voltage applied thereto, the periphery of the disc is displaceable and at least a portion of a peripheral region of the disc serves to control fluid flow between the inlet and outlet ducts.

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