FURNACE DRAFT CONTROL WITH REMOTE CONTROL FEATURE

An apparatus for controlling the speed of a combustion blower motor includes first means for generating an output signal representative of a differential pressure. A second means provides a second signal representative of a desired airflow output of the blower and a summation circuit receives the fi...

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Bibliographische Detailangaben
Hauptverfasser:	HAYES, THOMAS E, JAMIESON, J. SCOTT, SPENCE, SCOTT L
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES CONTROLLING HEATING LIGHTING MECHANICAL ENGINEERING PHYSICS REGULATING REGULATING OR CONTROLLING COMBUSTION SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES WEAPONS
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Beschreibung
Zusammenfassung:	An apparatus for controlling the speed of a combustion blower motor includes first means for generating an output signal representative of a differential pressure. A second means provides a second signal representative of a desired airflow output of the blower and a summation circuit receives the first signal and the second signal and generates a command signal in response thereto. A power output circuit receives the command signal and responsively provides a regulated level of power to the motor for controlling the speed thereof. The first means may be embodied as a diaphragm-type differential pressure transmitter while the second means may be embodied as an adjustable voltage source or as a source which provides an output signal representative of a temperature.