Open solenoid valve with arc relighter, method to augment flame safeguard
AssigneeTotal Energy Resources, Inc.
InventorsScott Cook, Jose Pereira
Life of this patent
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Abstract
The invention provides a pilot light ignition system comprising a solenoid valve and a flame safeguard controller. Also provided is a pilot light ignition process comprising a normally open solenoid valve that shuts down a main burner gas supply while the pilot is being lit. A fail last position solenoid can also be utilized with the system.
Claims11
A pilot light ignition system incorporating a means to cut off fuel flow to a main burner while a pilot system is being relit, said fuel flow remaining cutoff while a flame safeguard component is in the process of cutting off fuel flow to a pilot assembly and the main burner.
The system as recited in claim one wherein the fuel cut off means comprising a fail last position solenoid valve that shuts down a main fuel gas supply line when a pilot light is being lit, said solenoid valve allowing the main fuel gas to flow with the presence of a pilot flame.
A pilot light ignition system comprising
- a. a flame safe guard operably connected to a fail last position solenoid valve;
- and
- b. a pressure switch to detect if the flame safe guard is on before energizing a solenoid valve, thereby opening a main valve supplying fuel gas to a main burner.
A pilot light ignition system comprising:
- a. a redundant safety system that includes a solenoid valve that ultimately closes a main valve supplying fuel gas to a main burner when a pilot light is not lit;
- and
- b. a flame safeguard component that ultimately closes to shut down fuel gas flow to a pilot light and main burner when required parameters are not satisfied.
Dependencies are inferred from the claim text.