F - Mech Eng,Light,Heat,Weapons – 23 – N
Patent
F - Mech Eng,Light,Heat,Weapons
23
N
158/62, 137/43.2
F23N 1/00 (2006.01) G05D 16/06 (2006.01)
Patent
CA 1044130
SLOW-OPENING GAS VALVE ABSTRACT OF THE DISCLOSURE: A gas valve having first and second redundant valve mem- bers, disposed in a passageway between an inlet and an outlet of the valve which are individually operable to open and close re- spective inlet and outlet valve ports, and a pressure regulating apparatus interposed between the inlet and outlet valve ports operable to supply gas to the outlet valve port initially at a pressure lower than the inlet pressure when the first and second valve members are operated to open respective valve ports, and to gradually increase the pressure of the gas supplied to the outlet valve port until the outlet pressure equals a value inter- mediate the inlet pressure and the initial outlet pressure, as established by a pressure regulator spring of the pressure regu- lating apparatus. The gas valve is disclosed with reference to an application in a fuel ignition system to regulate gas flow to a combustion box to minimize ignition noise and rollout of gas flame from the combustion box.
258714
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