초록 ▼

A control system for regulating a flow rate of a heat transfer fluid in a heat transfer system, the heat transfer system having a heat transfer fluid flow path, flow control device for creating flow along the path, a fuel source for providing a combustible fuel to the path, an air source for providi

A control system for regulating a flow rate of a heat transfer fluid in a heat transfer system, the heat transfer system having a heat transfer fluid flow path, flow control device for creating flow along the path, a fuel source for providing a combustible fuel to the path, an air source for providing combustion air to the path, and an assembly for combusting the fuel and air, the control system comprising a sensor for sensing a measured flow value at the air source, a controller for storing an optimum flow value at the air source and for storing a range of operating control values for the flow control device, the operating control values corresponding to the optimum flow value, a system for calculating a deviation between the measured flow value and the optimum flow value, and a system for varying the operation of the flow control means in accordance with deviation.

대표청구항 ▼

A control system for monitoring and adjusting a pressure differential value across a fluid flow chamber, said control system comprising: differential sensor means for sensing a first measured pressure at a first location along the fluid flow chamber and a second measured pressure at a second locatio

A control system for monitoring and adjusting a pressure differential value across a fluid flow chamber, said control system comprising: differential sensor means for sensing a first measured pressure at a first location along the fluid flow chamber and a second measured pressure at a second location along the fluid flow chamber, and providing a series of pulses having a frequency related to the pressure differential value; means for determining a time to count a predetermined number of said series of pulses and for converting said time into an indication of the measured pressure differential value; calculation means for calculating a deviation between the indication of measured pressure differential value and a predetermined pressure differential value; and means for changing the pressure differential value in accordance with said deviation.