Combustion – Timer – programmer – retarder or condition responsive control – By combustion or combustion zone sensor
Patent
1995-10-05
1996-10-22
Yeung, James C.
Combustion
Timer, programmer, retarder or condition responsive control
By combustion or combustion zone sensor
431 66, 431 69, 431 78, F23N 508
Patent
active
055671446
ABSTRACT:
A fuel oil burner utilizing a hot surface ignition with an ignitor that is fully sintered and has essentially no porosity, a circuit for applying AC line voltage to the ignitor and to a blower motor, an AC-to-DC converter for providing twelve volts DC for operation of a control circuit that has a first time constant circuit for preheating the ignitor and maintaining the ignitor at an ignition temperature for a predetermined ignition trial period of time, a second time constant circuit for starting the blower motor and providing fuel to the combustion chamber for a predetermined time concurrent with the ignition trial period, and a third time constant circuit that either maintains the fan blower in its energized state if a flame of sufficient magnitude and frequency is detected and for de-energizing the blower motor if the flame is not detected in less than one second after the ignitor is de-energized. A lock-out circuit is provided such that if no flame is detected, the unit cannot be restarred without first removing power and then reapplying power to the unit.
REFERENCES:
patent: 3393039 (1968-07-01), Eldridge, Jr. et al.
patent: 3537804 (1970-11-01), Walbridge
patent: 3572811 (1971-03-01), Hron
patent: 3651327 (1972-03-01), Thomson
patent: 3713766 (1973-01-01), Donnelly et al.
patent: 3741709 (1973-06-01), Clark
patent: 4643668 (1987-02-01), Geary
patent: 5026270 (1991-06-01), Adams
patent: 5085573 (1992-02-01), Geary
patent: 5133656 (1992-07-01), Peterson
Desa International Inc.
Yeung James C.
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