Patent ID: 6345611
Filing Date: 2002-02-12
Classification: F02M,Y02T

Abstract:
A heater for gas fuel mounted to a gas fuel pressure regulator, the regulator having a regulator body with a high pressure gas inlet and a low pressure gas outlet, the heater comprising:a heater housing coupled to the regulator body, the heater housing having a gas inlet in communication with the regulator outlet and a gas outlet, the heater housing further having a coolant inlet and a coolant outlet and a coolant passage therebetween which is partially defined by the regulator body wherein coolant in the coolant passage engages the regulator housing; a core within the heater housing defining a gas passage and separating the gas passage from the coolant passage therein; and a coolant flow control member at least partially disposed in the gas passage adjacent the gas outlet to be responsive to gas temperature in the gas passage for opening and closing the coolant passage to enable or prevent coolant flow through the coolant passage as a function of gas temperature.