F - Mech Eng,Light,Heat,Weapons – 23 – N
Patent
F - Mech Eng,Light,Heat,Weapons
23
N
341/19
F23N 5/20 (2006.01) F23N 5/02 (2006.01) F23N 5/08 (2006.01) F23N 5/18 (2006.01)
Patent
CA 1176730
ABSTRACT OF THE DISCLOSURE The present invention relates to a control circuit for a firing installation comprising at least one fuel release element switched on by a switching-on element, ignition means, a flame monitor with a flame relay and an electronic safety timer which, in the course of the programme, successively operates in two sequences, during the first sequence at the end of the safety period actuates a preparatory apparatus with the aid of which the actuation of the fuel release element is prepared, commences its second sequence with switching on of the fuel release element and, with the aid of switching off apparatus, effects switching off of the fuel release element at the end of the safety period if the flame relay has failed to respond.
378934
Danfoss A/s
Macrae & Co.
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