Control or regulating system for automatic gas furnaces of heati

Details Control or regulating system for automatic gas furnaces of heati Control or regulating system for automatic gas furnaces of heati

1994-02-25

1996-05-07

Jones, Larry

Combustion

Timer, programmer, retarder or condition responsive control

By condition of burner feed or feed means

431 12, 431 18, 431 89, 126116A, F23N 500

Patent

active

055139795

ABSTRACT:
A control or regulating system for an automatic heat furnace is disclosed. This control system simplifies the construction of automatic gas furnaces for heating plants. The control system operates the furnaces with a high degree of efficiency and low pollutant emission, even at partial capacity. The adjusting element or mechanism for air is a blower with adjustable rotational speed which is driven by a motor. The motor is controllable by, preferably, digital pulse-width modulated control signals of a control aggregate acted upon by a regulator. A gas valve regulates the pressure of the gas supplied to the burner as a function of the air pressure in the line leading from the blower to the burner.

REFERENCES:
patent: 4348169 (1982-09-01), Swithenbank et al.

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