Infrared heating system and metering element
OwnerEric Willms, Pat Carusoinventors
Life of this patent
Estimating the term…
Abstract
A radiant heating system 30 comprising a tube 34 for radiating heat having a vacuum pump 40 coupled to an upstream end 35 for introducing negative pressure therein, a plurality of burner assemblies 32 mounted in series along a length thereof for igniting a combustible gas within the tube 34, and a metering element 90 for controlling the firing rate of the burner assemblies 32 under variable negative pressure conditions.
Claims29
What is claimed is a radiant heating system comprising:
- a tube for radiating heat, said tube having a downstream end and an upstream end;
- a plurality of burner assemblies mounted in series along a length of said tube, each of said burner assemblies for igniting a combustible gas within said tube, each burner assembly including a mixing chamber for mixing fuel gas received from a gas inlet, with air received from an air inlet to form a combustible gas, each burner assembly including a combustion assembly for receiving said combustible gas from said mixing chamber, and for igniting said combustible gas within said tube;
- a vacuum pump mounted proximate said upstream end for supplying negative pressure within said tube;
- and
- metering means in the form of a metering element, carried by said mixing chamber, for selectively regulating the mixing of the air and the fuel gas, and for further regulating the flow of said combustible gas to said combustion assembly, said metering element also for mixing the combustible gas and for controlling the flow of said combustible gas through each of said burner assemblies for maintaining each burner assembly at substantially the same nominal combustion rate within said tube under variable negative pressure conditions.
What is claimed is a burner assembly for radiant heater, said radiant heater including a tube for radiating heat provided from said burner assembly and a vacuum pump for introducing negative pressure within said tube, said burner assembly comprising:
- a gas inlet;
- an air inlet;
- a mixing chamber for mixing fuel gas received from said gas inlet with air received from said air inlet to form a combustible gas;
- a combustion assembly for receiving said combustible gas from said mixing chamber, and for igniting said combustible gas within said tube;
- and
- a metering element carried by said mixing chamber, for selectively regulating the mixing of the air and the fuel gas, and for further regulating the flow of said combustible gas to said combustion assembly, the metering element also controlling the flow of said combustible gas through said burner assembly for maintaining a nominal combustion rate within said tube, under variable negative pressure conditions.
What is claimed is a burner assembly for a radiant heater, said radiant heater including a tube for radiating heat provided from said burner assembly and a vacuum pump for introducing negative pressure within said tube, said burner assembly comprising:
- a gas inlet;
- an air inlet;
- and
- a metering chamber for mixing fuel gas received from said gas inlet with air received from said air inlet to form a combustible gas, for selectively regulating the mixing of the air and the fuel gas, and for further regulating the flow of said combustible gas to a combustion assembly, said combustion assembly for igniting said combustible gas within said tube, the metering chamber also controlling the flow of said combustible gas through said burner assembly for maintaining a nominal combustion rate within said tube under variable negative pressure conditions.
What is claimed is a method of radiant heating comprising the steps of:
- providing a tube for radiating heat, said tube having a downstream end and an upstream end;
- providing a plurality of burner assemblies, each having a firing rate and mounted in series along a length of said tube, each of said burner assemblies for igniting a combustible gas proximate a combustion assembly suitably located within said tube;
- introducing negative pressure within said tube;
- and;
- controlling the firing rate of each of said burner assemblies for maintaining each of said burner assemblies proximate a nominal firing rate.
Dependencies are inferred from the claim text.