Patent ID: 9689508
Date: 2017-06-27
CPC Classifications: F16K

Claim:
1. A microvalve device for controlling fluid flow, comprising: a microvalve body, the microvalve body being composed of multiple layers and including a first layer and a second layer that is bonded with the first layer and has a plurality of fluid ports; a cavity, disposed between the first layer and the second layer; a plurality of actuators, respectively disposed corresponding to each fluid port, wherein, opening and closing of the plurality of fluid ports are controlled by the plurality of actuators independently, wherein, the plurality of fluid ports comprises a fluid source port, a control port and a backflow port, and upon the fluid source port and the control port being open and the backflow port being closed, fluid flows from the fluid source port toward the control port; and upon the fluid source port being closed and the control port and the backflow port being open, fluid flows from the control port toward the backflow port.