Fluidic control valve with small displacement actuators
First Claim
Patent Images
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.
4 Assignments
0 Petitions
Accused Products
Abstract
A fluidic control valve includes a piezostack actuator, a seal plate, and an orifice plate including a plurality of orifices. The piezostack actuator is configured to move 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.
-
Citations
20 Claims
-
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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A fluidic control valve configured to control a flow of fluid through a conduit comprising:
-
a plurality of piezostack actuators; a plurality of seal plates, each seal plate corresponding to one of the piezostack actuators; and an orifice plate comprising a plurality of orifices; wherein; each of the piezostack actuators is configured to move the corresponding seal plate between a closed position, in which the seal plate seals corresponding apertures of the orifice plate, and an open position, in which the seal plate is displaced from the orifice plate; 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 total area of the plurality of orifices corresponds to an area of a circle having 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.
-
Specification