High efficiency gas furnace
AssigneeCombustion Concepts, Inc.
InventorsWilliam E. Kraemer, Manouchehr Daneshvar
Life of this patent
Estimating the term…
Abstract
A high efficiency gas furnace utilizes a unique pre-mix design in combination with a pressurized/high velocity combustion process. The combustion process occurs in a combustion chamber and the high temperature high velocity products of combustion follow a circuitous route from the combustion chamber through finned tubular conduits to an exhaust. Heat from the high temperature high velocity products is transferred to the finned tubular conduits. An air blower assembly forces air across the finned tubular conduits and the combustion chamber to remove the heat from the finned tubular conduits and transfers this heat to a building or an enclosed portion thereof.
Claims19
A clean burning gas flame furnace comprising:
- a housing defining a combustion chamber;
- burner means disposed within said housing for combusting a pressurized fuel gas and air premixture for providing heat, said pressurized fuel gas and air premixture being supplied to said burner means as a specified pressure greater than one PSIG;
- a compressor for compressing a fuel gas and air premixture to provide said pressurized fuel gas and air premixture and introducing said pressurized premixture to said burner means at a specified velocity;
- a mixing unit having a combustion air inlet and a fuel gas inlet, said mixing unit operable to create said fuel gas and air premixture, said mixing unit being in communication with said compressor;
- means for supplying combustion air to said air inlet of said mixing unit;
- means for supplying fuel gas to said fuel gas inlet of said mixing unit;
- a heat exchanger in communication with said combustion chamber through at least one delivery tube, said heat exchanger comprising a plurality of tubes disposed generally perpendicular to said combustion chamber;
- means for forcing air to flow over said heat exchanger such that heat is transferred to said forced air;
- means for controlling the safe operation of said furnace by determining that proper combustion has occurred, said means for controlling the safe operation of said furnace communicating with said fuel gas supply means to control the supply of fuel gas to said mixing unit;
- means for exhausting the high velocity products of combustion, said exhausting means being mated with said heat exchanger;
- and means for controlling the rate of combustion.
Dependencies are inferred from the claim text.