FLOW CONTROL VALVE UTILIZING THERMAL EXPANSION MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a flow control valve utilizing a thermal expansion material to precisely regulate not only a flow rate in a micro range but also a flow rate in a wide range by utilizing a material expanded by applying heat. SOLUTION: This flow control valve comprises a body 110 provided with an inflow part 111 and a discharge part 112; a displacement control part 120, arranged at the body, to store a material expanded by a heat 125 and regulate the opening of the discharge part 112 by deforming a portion corresponding to the discharge part when an expansion material is expanded; and a heating means 130 to heat the thermal expansion material of the internal part of the displacement control part 120. The displacement control part 120 comprises a container 121 coupled to the body and storing the thermal expansion material; and a deformation plate 122 coupled to the container in a manner to correspond to the discharge part 112 and closing the container 121 and regulating the opening of the discharge part 112 displaced by expansion of the thermal expansion material.