초록 ▼

A means and method for optimizing the efficiency of combustion devices such as furnaces, boilers, ovens, stoves, and the like which automatically tests for and controls the amount of input air utilized by the combustion device to optimize combustion efficiency. The method constantly increases or dec

A means and method for optimizing the efficiency of combustion devices such as furnaces, boilers, ovens, stoves, and the like which automatically tests for and controls the amount of input air utilized by the combustion device to optimize combustion efficiency. The method constantly increases or decreases the amount of input air and monitors the output of the combustion device to see if the change in input air increases or decreases efficiency. If efficiency is increased, the amount of input air is continued to be changed in that direction. If the efficiency is decreased, the change of excess air is reversed. By continuously testing for optimal air fuel ratios, optimal efficiency is reached. The means to accomplish the method include an output monitor, an air input control means, and recording means for recording the output of the combustion device as it presently exists compared to its former reading. A math unit then compares the two readings and depending upon whether output is increased or decreased, utilizes a logic control to signal a switching means which sends a signal to either increase or decrease the input air to the air control means. The means and method can be utilized with combustion devices having variable fuel and air input, or with combustion devices which have a fixed fuel input or which must output at a fixed level.

대표청구항 ▼

A method of optimizing efficiency of a combustion device such as a furnace, boiler, oven, stove or the like wherein required combustion device output is variable and fuel input is variable, comprising: monitoring the rates of fuel input and combustion device output of said combustion device; obtaini

A method of optimizing efficiency of a combustion device such as a furnace, boiler, oven, stove or the like wherein required combustion device output is variable and fuel input is variable, comprising: monitoring the rates of fuel input and combustion device output of said combustion device; obtaining first readings of fuel input and combustion device output; dividing said first combustion device output reading by said first fuel input reading to derive a first quotient of combustion device output to fuel input; increasing the air input by a first amount to said combustion device; obtaining second readings of combustion device output and fuel input; dividing said second combustion device output reading by said second fuel input reading to derive a second quotient of combustion device output to fuel input; recording said second quotient; subtracting said first quotient from said second quotient to derive a remainder representing change in rate of combustion device output for said combustion device; increasing input air again if said remainder is positive and the excess air level was previously increased; decreasing input air if said remainder is negative and the excess air level was previously decreased; if the remainder is negative and the excess air level was previously increased, the excess air level is then decreased; and if the remainder is negative and the excess air level was previously decreased, the excess air level is then increased.