Fluid handling – Combustion failure responsive fuel safety cut-off for burners – Thermo-electric
Patent
1998-03-17
2000-07-04
Walton, George L.
Fluid handling
Combustion failure responsive fuel safety cut-off for burners
Thermo-electric
126503, 431 54, 431 60, 431281, F23D 1472, F23N 510, F23Q 910, F23Q 912, F16K 3102
Patent
active
060823887
ABSTRACT:
The device comprises a safety valve with an actuator which can be armed manually, a regulation valve disposed in a duct downstream of the safety valve for supplying a main burner, a tapping duct for supplying a pilot burner, and a flame detector for the pilot burner for supplying the actuator of the safety valve with sufficient energy to hold the safety valve open after manual arming has taken place and the pilot light has been lit. In order also to supply another burner without compromising the safety of the device, an on/off valve provided in a duct branching off the main duct between the safety valve and the regulation valve has an operating member coupled to the manual arming member of the actuator of the safety valve for keeping the on/off valve in a condition in which it shuts off the branch duct during the manual arming of the safety-valve actuator.
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Gallocchio Vanni
Stefani Pierluigi De'
Turrin Gianpiero
Sit La Precisa S.r.l.
Walton George L.
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