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Fluidic control valve with small displacement actuators

  • US 10,330,212 B2
  • Filed: 01/05/2017
  • Issued: 06/25/2019
  • Est. Priority Date: 01/27/2016
  • Status: Active Grant
First Claim
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1. A fluidic control valve configured to control a flow of fluid through a conduit comprising:

  • a piezostack actuator;

    a seal plate; and

    an orifice plate comprising a plurality of orifices;

    wherein;

    the piezostack actuator is configured to displace the seal plate along a longitudinal axis between a closed position, in which the seal plate seals the orifices of the orifice plate and closes the valve, and an open position, in which the seal plate is displaced from the orifice plate to open the valve;

    wherein the plurality of orifices includes greater than 20 orifices, each orifice having a diameter of about 10 microns to about 500 microns; and

    a circle having an area that is equivalent to a total area of the plurality of orifices has a diameter that is greater than four times a maximum distance the piezostack actuator displaces the seal plate from the orifice plate when in the open position.

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