Automatic temperature and humidity regulation – Miscellaneous – Burner controls with automatic cutoff
Patent
1980-03-24
1983-09-27
Makay, Albert J.
Automatic temperature and humidity regulation
Miscellaneous
Burner controls with automatic cutoff
236 93R, 431 20, 126293, G05D 2312
Patent
active
044063962
ABSTRACT:
Method and apparatus for regulating the flue draft in heating systems including a combustion volume, a flue communicating with the combustion volume, and a vent opening between heated ambient air and the flue, the regulation being accomplished by sensing the flow of air through the vent into the flue, and modulating the setting of a downstream damper to maintain such flow at a predetermined, positive but minimal value. A particularly preferred embodiment includes a temperature sensor positioned at the flue side of the vent and connected to a control system to maintain the damper at such a position that the temperature at such location is at a predetermined value above that of the ambient air temperature, and thus indicative of flow of ambient air into the flue at minimal values approaching incipient spillage of combustion gases at the vent.
REFERENCES:
patent: 4095514 (1978-06-01), Roy et al.
patent: 4251024 (1981-02-01), Feinberg
patent: 4262843 (1981-04-01), Omori et al.
Bennett Henry
Makay Albert J.
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