F - Mech Eng,Light,Heat,Weapons – 23 – N
Patent
F - Mech Eng,Light,Heat,Weapons
23
N
F23N 5/10 (2006.01) F23N 3/08 (2006.01)
Patent
CA 2393160
An apparatus for and method of controlling the circulating fan of a gas appliance. The circulating fan is powered by an alternating current electric motor. An electronic circuit, powered by the heat of the gas appliance, determines the rotational speed of the electric motor by controlling the effective duty cycle of the alternating current source coupled to the electric motor.
L'invention concerne un appareil et un procédé permettant de commander le ventilateur de recirculation d'un appareil à gaz. Ledit ventilateur de recirculation est alimenté par un moteur électrique à courant alternatif. Un circuit électronique, alimenté par la chaleur de l'appareil à gaz, détermine la vitesse de rotation du moteur électrique par régulation du rapport cyclique efficace de la source de courant alternatif couplée audit moteur électrique.
Bird Douglas D.
Brent Chian
Gowling Lafleur Henderson Llp
Honeywell Inc.
LandOfFree
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