Patent ID: 6748969
Filing Date: 2004-06-15
Classification: F16K,Y10T

Abstract:
A poppet valve with a heater, comprising:a valve casing which has a first main port and a second main port, a flow path connecting both the main ports to each other, and a valve seat provided inside the flow path; a cylinder which is coupled to the valve casing via a heat insulating portion; a valve member of a poppet type that is provided inside the valve casing to open/close the valve seat; a rod whose distal end portion is coupled to the valve member and whose proximal end portion extends into the interior of the cylinder via the heat insulating portion; a piston which is slidably disposed in the interior of the cylinder via a sealing member and is coupled to the proximal end of the rod; a heat transfer body which is disposed at a fixed position inside the valve casing along the rod and whose distal end portion is provided with a heat transfer face coming in contact with the valve member at a position of valve opening; a first heater which is attached to the heat transfer body; and a second heater which is attached on an outer face of the valve casing.