Patent ID: 6991451
Filing Date: 2006-01-31
Classification: F23K,F23N,Y10T

Abstract:
1. A heater comprising a burner, a compressor operatively connected to the burner for supplying compressed air to the burner, a fuel supply for supplying fuel to the burner and an apparatus for simultaneously controlling flow rates of the fuel and the compressed air to the burner, the apparatus including: a control valve for controlling the flow rate of the fuel; and a bleed device for bleeding the air; the control valve being operatively connected to the bleed device, whereby, as the control valve is opened progressively greater amounts to increase flow of the fuel, the bleed device is progressively closed to decrease bleeding of the air, and, as the control valve is closed progressively greater amounts to decrease flow of the fuel, the bleed device is progressively opened to increase bleeding of the air.