Atomization burner with flexible fire rate
First Claim
1. A method for turning an atomizing burner from an ON state to an OFF state, the burner having independently controllable flows of atomizing air, combustion air, and fuel flow, the burner in the ON state having flow values of burner parameters including flow of atomizing air, flow of combustion air, and fuel flow, the method comprising:
- changing, in response to an OFF instruction, flow of at least one of the flow of atomizing air, combustion air and/or fuel to a lower non-zero value;
first discontinuing, after a first period of time since the changing, flow of fuel and flow of atomizing air;
maintaining, for a second period of time since the first period of time, flow of combustion air;
second discontinuing, after the maintaining, flow of combustion air;
wherein the maintaining prevents buildup of excess heat inside the burner during the transition to the OFF state.
2 Assignments
0 Petitions
Accused Products
Abstract
An atomizing burner and corresponding method for turning an atomizing burner from an ON state to an OFF state. The burner has independently controllable flows of atomizing air, combustion air, and fuel flow, the burner in the ON state having flow values of burner parameters including flow of atomizing air, flow of combustion air, and fuel flow. The method includes: changing, in response to an OFF instruction, flow of at least one of the flow of atomizing air, combustion air and/or fuel to a lower non-zero value; first discontinuing, after a first period of time since the changing, flow of fuel and flow of atomizing air; maintaining, for a second period of time since the first period of time, flow of combustion air; second discontinuing, after the maintaining, flow of combustion air; wherein the maintaining prevents buildup of excess heat inside the burner during the transition to the OFF state.
8 Citations
12 Claims
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1. A method for turning an atomizing burner from an ON state to an OFF state, the burner having independently controllable flows of atomizing air, combustion air, and fuel flow, the burner in the ON state having flow values of burner parameters including flow of atomizing air, flow of combustion air, and fuel flow, the method comprising:
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changing, in response to an OFF instruction, flow of at least one of the flow of atomizing air, combustion air and/or fuel to a lower non-zero value; first discontinuing, after a first period of time since the changing, flow of fuel and flow of atomizing air; maintaining, for a second period of time since the first period of time, flow of combustion air; second discontinuing, after the maintaining, flow of combustion air; wherein the maintaining prevents buildup of excess heat inside the burner during the transition to the OFF state. - View Dependent Claims (2, 3, 4)
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5. A method for turning an atomizing burner from an ON state to an OFF state, the burner having independently controllable flows of atomizing air, combustion air, and fuel flow, the burner in the ON state having burner parameters including flow of atomizing air, flow of combustion air, and fuel flow, the method comprising:
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changing, in response to an OFF instruction, flow of atomizing air, combustion air and fuel to predetermined flow levels; first maintaining, in response to the changing, the predetermined flow levels for a first period of time; first reducing, after the first maintaining, flow of fuel; second reducing, after the first maintaining, flow of atomizing air; increasing, after the first maintaining, flow of combustion air; third reducing, after the increasing, flow of combustion air; wherein the burner continues flow of combustion air between the increasing and the third reducing to prevent the buildup of excess heat inside the burner during transition of the burner to the OFF state. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. An atomizing burner having an atomizing head and a flame tube, comprising:
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a first DC fuel motor adapted to deliver fuel flow to the atomizing head; a second DC atomizing air motor adapted to provide to an opening in the atomizing head where the atomizing air will atomize the fuel; a third DC combustion air motor adapted to deliver combustion air to the flame tube to aid in combustion of atomized fuel; a controller comprising a combination of hardware and software programmed to turn the burner ON and OFF, wherein to turn the burner OFF the program will at least discontinue flow of atomizing air and fuel while continuing flow of combustion air to prevent the buildup of excess heat in the flame tube.
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Specification