A gas burner including a burner body having a lower housing, an inlet conduit and a combustion surface element attached to the lower housing. A diffuser/reflector positioned within the body encourages even distribution and mixing of a combustible gas/air mixture. The diffuser/reflector is preferably
A gas burner including a burner body having a lower housing, an inlet conduit and a combustion surface element attached to the lower housing. A diffuser/reflector positioned within the body encourages even distribution and mixing of a combustible gas/air mixture. The diffuser/reflector is preferably of a sheet metal construction and includes a plurality of stamped openings with each of these openings having an overhanging guide plate. The combustion surface element includes a plurality of integrally formed rigidizing ribs and is made from a high temperature steel alloy wire cloth. The inlet conduit is secured directly or indirectly to an access door/bulkhead that is used to close off an access opening formed in a water heater wall through which the burner is installed. In one construction, an air scoop shrouds the inlet conduit and at least partially defines a flow path of primary air, substantially isolated from the combustion chamber.
대표청구항▼
We claim: 1. A gas burner comprising: a) a burner body including: i) a lower housing said lower housing having a sidewall; ii) an element defining a combustion surface attached to said lower housing; iii) a diffuser positioned below said element; b) an inlet conduit with an angled discharge end co
We claim: 1. A gas burner comprising: a) a burner body including: i) a lower housing said lower housing having a sidewall; ii) an element defining a combustion surface attached to said lower housing; iii) a diffuser positioned below said element; b) an inlet conduit with an angled discharge end communicating with said burner body through which a gas/air mixture is delivered to said burner body in a region located below said diffuser wherein inlet conduit extends partially into said burner body; and, c) said diffuser including a plurality of openings, each opening having an overhanging guide plate; d) said diffuser having a somewhat inverted V-shaped configuration, and said openings are arranged in sets of parallel rows located on both sides of said diffuser and said diffuser including a second plurality of openings located in an upper region of said diffuser which do not include associated guide plates located between said openings with said guide plates e) said openings of said parallel rows being oriented to direct said gas/air mixture in a direction generally toward said sidewall, said direction being generally transverse to an axis of said inlet conduit. 2. The burner of claim 1 wherein said diffuser is a sheet metal stamping, and said guide plates are formed by partially stamping through the sheet metal in order to form outwardly extending elements that define the associated overhanging guide plates. 3. A gas burner comprising: a) a burner body including: i) a lower housing having sidewalls; ii) an element defining a combustion surface attached to said lower housing; an inlet conduit with an angled discharge end communicating with said burner body through which a gas/air mixture is delivered to said burner body in a region located adjacent an inside surface of said combustion surface defining element wherein said inlet conduit extends partially into said burner body; and, c) said combustion surface defining element being radiused and including a plurality of integrally formed rigidizing ribs arranged perpendicularly with respect to said inlet conduit d) said combustion surface defining element having said inside surface exposed to uncombusted gas/air mixture, said gas/air mixture being combusted on said combustion surface defining element and outside said burner body region and e) an inverted, v-shaped sheet metal stamping diffuser having a partially stamped, overhanging guide plates to allow said gas/air mixture to flow radially outwardly toward said side walls. 4. The burner of claim 3 wherein said lower housing includes integrally formed flanges adapted to receive longitudinal edges of said combustion surface defining element by which said combustion surface element is secured, at least partially, to said lower housing. 5. The burner of claim 4 wherein said flanges are oriented in a tangential relationship with respect to said combustion surface defining element. 6. The burner of claim 5 wherein said lower housing comprises a channel member having upwardly directed sides, said flanges being defined at upper edges of said sides and said lower housing further includes a pair of endcaps secured to opposite ends of said channel member. 7. The burner of claim 6 wherein said endcaps include arcuate flanges for receiving and securing side edges of said combustion surface defining element. 8. The burner of claim 6 wherein one of said endcaps includes an aperture through which said inlet conduit extends, said endcap being captured between a pair of upset ridges formed on said inlet tube, whereby said inlet tube is secured to said burner body. 9. The burner of claim 1 wherein said inlet conduit includes a segment that extends into an interior region of said burner body and has a discharge end that is cut on an angle. 10. The burner of claim 9 wherein said angle is substantially 45°. 11. The burner of claim 1 wherein said burner body is substantially rectangular in shape. 12. The gas burner of claim 3 wherein said combustion surface defining element comprises a screen made from a high temperature steel alloy wire cloth having a twill weave of 30×32 mesh. 13. A premix gas burner for use in a water heater, said water heater including a wall at least partially defining a combustion chamber and an access opening in said wall, comprising: a) a burner body including a lower housing and an element defining a combustion surface that is attached to said lower housing; b) an inlet conduit with an angled discharge end communicating with said burner body through which a combustible gas and combustion air mixture is delivered to said burner body in a region located below said combustion surface defining element said inlet conduit supplying at least 100% of the combustion air needed for combustion of said combustible gas wherein said inlet conduit extends partially into said burner body; and, c) an access door for closing off said access opening when said burner is in its installed position within said water heater, said access door secured to an inlet end of said inlet conduit; d) said inlet end of said inlet conduit including an upset ridge that abuts an inside surface surrounding an opening in said door through which said inlet conduit extends and an outwardly extending flare that abuttably engages an outside surface of said door, whereby said door is secured to said inlet conduit and e) an air scoop located in said combustion chamber defining a flow path for primary air and which extends from an inlet end of said inlet conduit and a primary air source located outside of said combustion chamber. 14. The burner of claim 8 wherein said one endcap includes an axial flange around said aperture that is captured between said pair of upset ridges formed on said inlet tube. 15. The gas burner of claim 13 further including mounting structure attached to said door for mounting a gas orifice a spaced distance from said inlet end of said inlet conduit. 16. The gas burner of claim 15 wherein said inlet end of said inlet conduit is secured to said door in a door region having a predetermined profile that is unrelated to the radius of said access opening. 17. The gas burner of claim 13 wherein said inlet conduit is secured to an endcap portion forming part of said burner body, said inlet conduit including a pair of upset ridges located on either side of a wall forming part of said endcap portion. 18. A premix gas burner for use in a water heater, said water heater including a wall at least partially defining a combustion chamber and an access opening in said wall, comprising: a) a burner body including a lower housing having side walls and an element defining a combustion surface that is attached to said lower housing; b) an inlet conduit with an angled discharge end communicating with said burner body through which a combustible gas and combustion air mixture is delivered to said burner body in a region located below said combustion surface defining element said inlet conduit supplying substantially all combustion air needed for combustion of said combustible gas wherein said inlet conduit extends partially into said burner body; and, c) a bulkhead/access door for closing off said access opening when said burner is in its installed position within said water heater, said bulkhead/access door secured to an inlet end of said inlet conduit; d) said inlet end of said inlet conduit being secured to said bulkhead/access door in a region defining a mounting location having a predetermined profile that corresponds to said inlet end of said inlet conduit but that is unrelated to a radius of said access opening and e) an inverted, v-shaped sheet metal stamping diffuser having a partially stamped, overhanging guide plates to allow said gas/air mixture to flow radially outwardly toward said side walls. 19. The gas burner of claim 18 wherein said inlet end of said inlet conduit includes an upset ridge that abuts an inside surface of mounting location region and an outwardly extending flare that abuttably engages an outside surface of said region whereby said bulkhead/access door is secured to said inlet conduit. 20. The gas burner of claim 18 further including mounting structure attached to said mounting location, said mounting structure supporting a gas orifice a spaced distance from said inlet end of said inlet conduit. 21. The gas burner of claim 20 wherein said mounting structure includes a rodent shield. 22. The gas burner of claim 20 wherein said mounting structure comprises an element having a plurality of legs, said legs extending from a seat, distal ends of said legs being secured to said region defining a mounting location on said bulkhead/access door, at spaced locations. 23. The gas burner of claim 22 wherein said element further includes a deflecting tab which facilitates the assembly of a water heater that utilizes said gas burner. 24. The gas burner of claim 18 wherein said combustion chamber includes at least one port through which secondary combustion air is admitted into said combustion chamber. 25. The gas burner of claim 1 wherein said openings of said parallel rows are arranged in first and second sets and direct said gas/air mixture in first and second transverse directions respectively, said first transverse direction being substantially opposite the second transverse direction. 26. The gas burner of claim 1 wherein said lower housing is generally rectangular in shape and has a transverse dimension that is less than its longitudinal dimension, the transverse dimension being transverse to said axis of said inlet conduit. 27. The gas burner of claim 3 wherein said rigidizing ribs are oriented in a direction that is substantially transverse to an axis of said inlet conduit.
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이 특허에 인용된 특허 (28)
Abalos Martin (Pomona CA), Atmospheric gas burner assembly.
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