F - Mech Eng,Light,Heat,Weapons – 23 – N
Patent
F - Mech Eng,Light,Heat,Weapons
23
N
110/10
F23N 1/02 (2006.01) F23G 5/027 (2006.01) F23G 5/50 (2006.01) F23N 5/24 (2006.01)
Patent
CA 1219175
ABSTRACT OF THE DISCLOSURE A two-stage starved air furnace system is controlled to simultaneously achieve desired temperatures and percent stoichiometric air operation in the primary stage by modulating transformation relay functions acting upon measured temperature deviations to change both primary combustion air and primary auxiliary burner operation. At the set-point value of percent stoichiometric air, the relay functions are modulated in reverse direction to satisfy changing heat demands.
461863
Berken George A.
Lewis Frederick M.
Fetherstonhaugh & Co.
Zimpro Inc.
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