US20130037013A1 - Burner for heating system - Google Patents
Burner for heating system Download PDFInfo
- Publication number
- US20130037013A1 US20130037013A1 US13/565,280 US201213565280A US2013037013A1 US 20130037013 A1 US20130037013 A1 US 20130037013A1 US 201213565280 A US201213565280 A US 201213565280A US 2013037013 A1 US2013037013 A1 US 2013037013A1
- Authority
- US
- United States
- Prior art keywords
- wall
- burner
- central
- furnace
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D23/00—Assemblies of two or more burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/62—Mixing devices; Mixing tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/10—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by plates
- F24H3/105—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by plates using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/101—Flame diffusing means characterised by surface shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/101—Flame diffusing means characterised by surface shape
- F23D2203/1012—Flame diffusing means characterised by surface shape tubular
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
- F23D2203/102—Flame diffusing means using perforated plates
Definitions
- the subject matter disclosed herein relates to heating systems. More specifically, the subject disclosure relates to burners for residential and commercial heating systems.
- Heating systems in particular furnaces include one or more burners for combusting a fuel such as natural gas.
- Hot flue gas from the combustion of the fuel proceeds from the burner and through a heat exchanger.
- the hot flue gas transfers thermal energy to the heat exchanger, from which the thermal energy is then dissipated by a flow of air driven across the heat exchanger by, for example, a blower.
- FIG. 1 A typical construction is shown in FIG. 1 .
- a burner 100 is located external to a heat exchanger 102 .
- the burner 100 referred to as an inshot burner 100 , receives a flow of fuel from a fuel source 104 .
- An ignition source 106 combusts the flow of fuel.
- surfaces of the heat exchanger 102 adjacent to the combustion flame 110 are kept relatively cool by a flow of secondary air 108 to prevent damage to the surfaces of the heat exchanger 102 via the combustion flame 110 .
- premix burner Another type of burner is a premix burner in which fuel and air are mixed in the burner nozzle prior to injection into a combustion zone 112 where the ignition source 106 ignites the mixture.
- Premix burners compared to inshot burners, emit much lower levels of NO x , the emissions of which are tightly regulated and restricted. Because of this advantage of premix burners, it is appealing to introduce premix burners into furnaces.
- a premix burner having physical and operating characteristics similar to the burner 100 would not be suitable for use with heat exchanger 102 .
- the heat exchanger walls would necessarily be in close proximity to the burner and thus the concentration of heat produced in the immediate vicinity of the burner would result in excessively high temperatures in the wall of the heat exchanger 102 .
- premix burners have a much quicker heat release than inshot burners and do not have the benefit of secondary airflow to protect the heat exchanger surfaces from damage.
- simply replacing inshot burners with premix burners in an existing furnace construction would result in excessively high temperatures at adjacent heat exchanger surfaces.
- ignition access to a premix burner surface can be difficult and result in even more energy being dumped into the heat exchanger entry surfaces.
- a burner for a furnace includes an inner wall defining a central burner chamber.
- the inner wall includes a plurality of inner wall openings to admit a fuel flow into the central burner chamber.
- the burner further includes an outer wall which, together with the inner wall, defines an annulus for the fuel flow to the plurality of inner wall openings.
- An igniter is located in the central chamber.
- a furnace includes a heat exchanger and one or more burners disposed at and aligned with one or more burner openings of the heat exchanger.
- the one or more burners include an inner wall defining a central burner chamber.
- the inner wall includes a plurality of inner wall openings to admit a fuel flow into the central burner chamber.
- the one or more burners further include an outer wall, together with the inner wall defining an annulus for the fuel flow to the plurality of inner wall openings.
- An igniter is located in the central chamber.
- FIG. 1 is a cross-sectional view of a typical burner arrangement
- FIG. 2 is a schematic view of an embodiment of a furnace
- FIG. 3 is a cross-sectional view of an embodiment of a burner.
- the furnace 10 includes a heat exchanger 12 with one or more burners 14 aligned with respective burner openings 60 in heat exchanger 12 walls 16 .
- the burners 14 are located substantially within the heat exchanger 12 , while in other embodiments, the burners 14 may abut the heat exchanger 12 .
- the burners 14 offset a distance from the heat exchanger 12 , but are aligned with the burner openings 60 such that, once ignited, the burners 14 radiate hot flue gas 18 into the heat exchanger 12 , thermal energy from which is transferred to the heat exchanger 12 structure.
- the thermal energy is then dissipated from the heat exchanger 12 via a flow of air 20 driven across the heat exchanger 12 by, for example, a blower 22 .
- the heated flow of air 20 is delivered through one or more ducts 24 to provide heating to a space 26 , such as a room or a building.
- the burner 14 is substantially cylindrical in shape, and includes an outer wall 28 and an inner wall 30 . It is to be appreciated that while a substantially cylindrical burner 14 is shown, it is merely exemplary.
- the burner 14 may have another cross-sectional shape, for example, elliptical, conical, parabolic, partially circular, or the like.
- Both the inner wall 30 and the outer wall 28 may be substantially cylindrical and in some embodiments are coaxial about a central burner axis 32 .
- the inner wall 30 defines a central chamber 34 , and together with the outer wall 28 defines a burner annulus 36 between the inner wall 30 and the outer wall 28 .
- An igniter 38 for the burner is located in the central chamber 34 and, in some embodiments, extends along the burner axis 32 .
- the igniter 38 is located, for example, at a closed end 52 , or upstream end, of the burner 14 .
- a flame sensor 40 is located in the central chamber 34 , and also may be located at the closed end 52 .
- the inner wall 30 includes a plurality of inner wall openings 42 , and in some embodiments, may be at least partially a mesh screen. In some embodiments, the inner wall 30 is a unitary, replaceable component. Replacing the inner wall 30 at the end of its service life extends the overall useful life of the burner 14 .
- a flow of fuel 44 and a flow of combustion air 46 are delivered to the burner annulus 36 where they are premixed.
- the air/fuel mixture 48 then flows through the inner wall openings 42 or screen and into the central chamber 34 where the mixture 48 is ignited.
- the flue gas 18 is emitted from the burner 14 at a distal end 50 of the central chamber 34 and into the heat exchanger 12 structure.
- the structure disclosed herein allows for the utilization of a premix burner 14 which reduces NO x emissions compared to inshot burners, while not subjecting the heat exchanger 12 surfaces to direct effects of the combustion to prevent thermal damage to the heat exchanger 12 .
- the cylindrical structure of the burner 14 captures the combustion thermal energy before it is emitted from the burner 14 .
- the burner 14 is sized and configured to allow for the presence of the igniter 38 and flame sensor 40 within the burner 14 structure. This results in a space savings for the burner 14 and heat exchanger 12 , thus allowing for an increased cross-sectional sized burner 14 for a given heat exchanger 12 cross-sectional size.
- the flow through the burner annulus 36 isolates the flame from the heat exchanger 12 and aids in cooling the heat exchanger 12 surfaces near the burner 14 .
Abstract
A burner for a furnace includes an inner wall defining a central burner chamber. The inner wall includes a plurality of inner wall openings to admit a fuel flow into the central burner chamber. The burner further includes an outer wall which, defines an annulus for the fuel flow to the plurality of inner wall openings. An igniter is located in the central chamber. A furnace includes a heat exchanger and one or more burners disposed at and aligned with one or more burner openings of the heat exchanger. The one or more burners include an inner wall defining a central burner chamber. The inner wall includes a plurality of inner wall openings to admit a fuel flow into the central burner chamber. The one or more burners further include an outer wall defining an annulus for the fuel flow to the plurality of inner wall openings.
Description
- This application claims priority to U.S. provisional application Ser. No. 61/521,143, filed Aug. 8, 2011, the entire contents of which are incorporated herein by reference.
- The subject matter disclosed herein relates to heating systems. More specifically, the subject disclosure relates to burners for residential and commercial heating systems.
- Heating systems, in particular furnaces include one or more burners for combusting a fuel such as natural gas. Hot flue gas from the combustion of the fuel proceeds from the burner and through a heat exchanger. The hot flue gas transfers thermal energy to the heat exchanger, from which the thermal energy is then dissipated by a flow of air driven across the heat exchanger by, for example, a blower.
- A typical construction is shown in
FIG. 1 . Aburner 100 is located external to aheat exchanger 102. Theburner 100, referred to as aninshot burner 100, receives a flow of fuel from afuel source 104. Anignition source 106 combusts the flow of fuel. Even though theinshot burner 100 is in close proximity toheat exchanger 102, surfaces of theheat exchanger 102 adjacent to thecombustion flame 110 are kept relatively cool by a flow ofsecondary air 108 to prevent damage to the surfaces of theheat exchanger 102 via thecombustion flame 110. - Another type of burner is a premix burner in which fuel and air are mixed in the burner nozzle prior to injection into a
combustion zone 112 where theignition source 106 ignites the mixture. Premix burners, compared to inshot burners, emit much lower levels of NOx, the emissions of which are tightly regulated and restricted. Because of this advantage of premix burners, it is appealing to introduce premix burners into furnaces. A premix burner having physical and operating characteristics similar to theburner 100 would not be suitable for use withheat exchanger 102. The heat exchanger walls would necessarily be in close proximity to the burner and thus the concentration of heat produced in the immediate vicinity of the burner would result in excessively high temperatures in the wall of theheat exchanger 102. Such high temperatures would increase the surface temperatures of the surroundingheat exchanger 102 and shorten the life of theheat exchanger 102. Further, premix burners have a much quicker heat release than inshot burners and do not have the benefit of secondary airflow to protect the heat exchanger surfaces from damage. Thus, simply replacing inshot burners with premix burners in an existing furnace construction would result in excessively high temperatures at adjacent heat exchanger surfaces. Further, ignition access to a premix burner surface can be difficult and result in even more energy being dumped into the heat exchanger entry surfaces. - According to one aspect of the invention, a burner for a furnace includes an inner wall defining a central burner chamber. The inner wall includes a plurality of inner wall openings to admit a fuel flow into the central burner chamber. The burner further includes an outer wall which, together with the inner wall, defines an annulus for the fuel flow to the plurality of inner wall openings. An igniter is located in the central chamber.
- According to another aspect of the invention, a furnace includes a heat exchanger and one or more burners disposed at and aligned with one or more burner openings of the heat exchanger. The one or more burners include an inner wall defining a central burner chamber. The inner wall includes a plurality of inner wall openings to admit a fuel flow into the central burner chamber. The one or more burners further include an outer wall, together with the inner wall defining an annulus for the fuel flow to the plurality of inner wall openings. An igniter is located in the central chamber.
- These and other advantages and features will become more apparent from the following description taken in conjunction with the drawings.
- The subject matter, which is regarded as the invention, is particularly pointed out and distinctly claimed in the claims at the conclusion of the specification. The foregoing and other features, and advantages of the invention are apparent from the following detailed description taken in conjunction with the accompanying drawings in which:
-
FIG. 1 is a cross-sectional view of a typical burner arrangement; -
FIG. 2 is a schematic view of an embodiment of a furnace; and -
FIG. 3 is a cross-sectional view of an embodiment of a burner. - The detailed description explains embodiments of the invention, together with advantages and features, by way of example with reference to the drawings.
- Shown in
FIG. 2 is an improvedfurnace 10. Thefurnace 10 includes aheat exchanger 12 with one ormore burners 14 aligned withrespective burner openings 60 inheat exchanger 12walls 16. In some embodiments, theburners 14 are located substantially within theheat exchanger 12, while in other embodiments, theburners 14 may abut theheat exchanger 12. In still other embodiments, theburners 14 offset a distance from theheat exchanger 12, but are aligned with theburner openings 60 such that, once ignited, theburners 14 radiatehot flue gas 18 into theheat exchanger 12, thermal energy from which is transferred to theheat exchanger 12 structure. The thermal energy is then dissipated from theheat exchanger 12 via a flow ofair 20 driven across theheat exchanger 12 by, for example, ablower 22. The heated flow ofair 20 is delivered through one ormore ducts 24 to provide heating to aspace 26, such as a room or a building. - Referring now to
FIG. 3 , theburner 14 is substantially cylindrical in shape, and includes an outer wall 28 and aninner wall 30. It is to be appreciated that while a substantiallycylindrical burner 14 is shown, it is merely exemplary. Theburner 14 may have another cross-sectional shape, for example, elliptical, conical, parabolic, partially circular, or the like. Both theinner wall 30 and the outer wall 28 may be substantially cylindrical and in some embodiments are coaxial about acentral burner axis 32. Theinner wall 30 defines acentral chamber 34, and together with the outer wall 28 defines aburner annulus 36 between theinner wall 30 and the outer wall 28. Anigniter 38 for the burner is located in thecentral chamber 34 and, in some embodiments, extends along theburner axis 32. Theigniter 38 is located, for example, at a closedend 52, or upstream end, of theburner 14. Further, in some embodiments, aflame sensor 40 is located in thecentral chamber 34, and also may be located at the closedend 52. - The
inner wall 30 includes a plurality ofinner wall openings 42, and in some embodiments, may be at least partially a mesh screen. In some embodiments, theinner wall 30 is a unitary, replaceable component. Replacing theinner wall 30 at the end of its service life extends the overall useful life of theburner 14. A flow offuel 44 and a flow ofcombustion air 46 are delivered to theburner annulus 36 where they are premixed. The air/fuel mixture 48 then flows through theinner wall openings 42 or screen and into thecentral chamber 34 where themixture 48 is ignited. Theflue gas 18 is emitted from theburner 14 at adistal end 50 of thecentral chamber 34 and into theheat exchanger 12 structure. - The structure disclosed herein allows for the utilization of a
premix burner 14 which reduces NOx emissions compared to inshot burners, while not subjecting theheat exchanger 12 surfaces to direct effects of the combustion to prevent thermal damage to theheat exchanger 12. The cylindrical structure of theburner 14 captures the combustion thermal energy before it is emitted from theburner 14. Further, theburner 14 is sized and configured to allow for the presence of theigniter 38 andflame sensor 40 within theburner 14 structure. This results in a space savings for theburner 14 andheat exchanger 12, thus allowing for an increased cross-sectionalsized burner 14 for a givenheat exchanger 12 cross-sectional size. Further, the flow through theburner annulus 36 isolates the flame from theheat exchanger 12 and aids in cooling theheat exchanger 12 surfaces near theburner 14. - While the invention has been described in detail in connection with only a limited number of embodiments, it should be readily understood that the invention is not limited to such disclosed embodiments. Rather, the invention can be modified to incorporate any number of variations, alterations, substitutions or equivalent arrangements not heretofore described, but which are commensurate with the spirit and scope of the invention. Additionally, while various embodiments of the invention have been described, it is to be understood that aspects of the invention may include only some of the described embodiments. Accordingly, the invention is not to be seen as limited by the foregoing description, but is only limited by the scope of the appended claims.
Claims (18)
1. A burner for a furnace comprising:
an inner wall defining a central burner chamber, the inner wall including a plurality of inner wall openings to admit a fuel flow into the central burner chamber;
an outer wall, together with the inner wall defining an annulus for the fuel flow to the plurality of inner wall openings; and
an igniter disposed in the central chamber.
2. The burner of claim 1 , wherein the inner wall at least partially comprises a mesh screen defining the plurality of inner wall openings.
3. The burner of claim 1 , wherein one or more of the inner wall and the outer wall are substantially cylindrical.
4. The burner of claim 1 , wherein the inner wall and the outer wall are substantially concentric about a burner central axis.
5. The burner of claim 1 , wherein the igniter is disposed at a closed end of the burner.
6. The burner of claim 1 , further comprising a flame sensor disposed in the central burner chamber.
7. The burner of claim 1 , wherein the burner is alignable with a respective burner opening at a heat exchanger of a furnace.
8. The burner of claim 1 , wherein the plurality of inner wall openings are configured to convey a mixture of air and fuel into the central burner chamber.
9. The burner of claim 1 , wherein the inner wall is a replaceable element.
10. A furnace comprising:
a heat exchanger;
one or more burners disposed at and substantially aligned with one or more burner openings of the heat exchanger, the one or more burners including:
an inner wall defining a central burner chamber, the inner wall including a plurality of inner wall openings to admit a fuel flow into the central burner chamber;
an outer wall, together with the inner wall defining an annulus for the fuel flow to the plurality of inner wall openings; and
an igniter disposed in the central chamber.
11. The furnace of claim 10 , wherein the inner wall at least partially comprises a mesh screen defining the plurality of inner wall openings.
12. The furnace of claim 10 , wherein one or more of the inner wall and the outer wall are substantially cylindrical.
13. The furnace of claim 10 , wherein the inner wall and the outer wall are substantially concentric about a burner central axis.
14. The furnace of claim 10 , further comprising a flame sensor disposed in the central burner chamber.
15. The furnace of claim 10 , wherein the igniter is disposed at a closed end of the burner.
16. The furnace of claim 10 , wherein the inner wall is a replaceable element.
17. The furnace of claim 10 , wherein the plurality of inner wall openings are configured to convey a mixture of air and fuel into the central burner chamber.
18. The furnace of claim 10 , wherein thermal energy of a flue gas emitted by the one or more burners is transferred to the heat exchanger.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/565,280 US20130037013A1 (en) | 2011-08-08 | 2012-08-02 | Burner for heating system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161521143P | 2011-08-08 | 2011-08-08 | |
US13/565,280 US20130037013A1 (en) | 2011-08-08 | 2012-08-02 | Burner for heating system |
Publications (1)
Publication Number | Publication Date |
---|---|
US20130037013A1 true US20130037013A1 (en) | 2013-02-14 |
Family
ID=47676732
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/565,280 Abandoned US20130037013A1 (en) | 2011-08-08 | 2012-08-02 | Burner for heating system |
Country Status (1)
Country | Link |
---|---|
US (1) | US20130037013A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110174287A1 (en) * | 2010-01-15 | 2011-07-21 | Lennox Industries Inc. | Converging-diverging combustion zones for furnace heat exchanges |
US20210140632A1 (en) * | 2019-11-07 | 2021-05-13 | Lg Electronics Inc. | Gas furnace |
US11441785B2 (en) * | 2019-05-31 | 2022-09-13 | Lg Electronics Inc. | Gas furnace |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3856455A (en) * | 1972-02-01 | 1974-12-24 | B Biden | Method and apparatus for mixing and turbulating particulate fuel with air for subsequent combustion |
US4104017A (en) * | 1977-02-01 | 1978-08-01 | Gaz De France | Metallic non-premixed gas-burner with counter-rotation of gases |
US5380193A (en) * | 1993-12-02 | 1995-01-10 | Carrier Corporation | Apparatus for attaching manifold assembly to gas control assembly of furnace |
US5749720A (en) * | 1995-04-21 | 1998-05-12 | Nkk Corporation | Gas heating apparatus with dual burners |
US7143610B2 (en) * | 2001-03-23 | 2006-12-05 | Vitro Global, S.A. | Method and system for feeding and burning a pulverized fuel in a glass melting furnace, and burner for use in the same |
-
2012
- 2012-08-02 US US13/565,280 patent/US20130037013A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3856455A (en) * | 1972-02-01 | 1974-12-24 | B Biden | Method and apparatus for mixing and turbulating particulate fuel with air for subsequent combustion |
US4104017A (en) * | 1977-02-01 | 1978-08-01 | Gaz De France | Metallic non-premixed gas-burner with counter-rotation of gases |
US5380193A (en) * | 1993-12-02 | 1995-01-10 | Carrier Corporation | Apparatus for attaching manifold assembly to gas control assembly of furnace |
US5749720A (en) * | 1995-04-21 | 1998-05-12 | Nkk Corporation | Gas heating apparatus with dual burners |
US7143610B2 (en) * | 2001-03-23 | 2006-12-05 | Vitro Global, S.A. | Method and system for feeding and burning a pulverized fuel in a glass melting furnace, and burner for use in the same |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110174287A1 (en) * | 2010-01-15 | 2011-07-21 | Lennox Industries Inc. | Converging-diverging combustion zones for furnace heat exchanges |
US8875694B2 (en) * | 2010-01-15 | 2014-11-04 | Lennox Industries, Inc. | Converging-diverging combustion zones for furnace heat exchanges |
US11441785B2 (en) * | 2019-05-31 | 2022-09-13 | Lg Electronics Inc. | Gas furnace |
US20210140632A1 (en) * | 2019-11-07 | 2021-05-13 | Lg Electronics Inc. | Gas furnace |
US11639793B2 (en) * | 2019-11-07 | 2023-05-02 | Lg Electronics Inc. | Gas furnace |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11460189B2 (en) | Inward fired ultra low NOx insulating burner flange | |
CN102032594B (en) | For the interior panelling of fuel injector | |
US20120148963A1 (en) | Induced-Draft Low Swirl Burner for Low NOx Emissions | |
US20140076307A1 (en) | Infrared tube heater | |
US10126015B2 (en) | Inward fired pre-mix burners with carryover | |
US20170009982A1 (en) | Ultra low nox insulating burner without collar | |
US9068760B2 (en) | Heating appliance for air heating | |
TWI551824B (en) | Combustion control method for burner apparatus | |
EP2909533B1 (en) | Radiant wall burner apparatus with improved aerodynamic tip | |
US20130037013A1 (en) | Burner for heating system | |
CN102014716B (en) | An incineration system and burner for a toilet | |
CN107238107B (en) | Gas turbine burner | |
US20130224671A1 (en) | Unitary igniter and flame sensor | |
CN109556110A (en) | For generating the boiler of hot water or steam | |
US10520221B2 (en) | Refractory for heating system | |
US10429065B2 (en) | Low NOx gas burners with carryover ignition | |
US10215408B2 (en) | Method and apparatus for diffuse combustion of premix | |
JP6395619B2 (en) | Straight flame type gas burner | |
CN103115360B (en) | The short flame high temperature industrial combustor of combustion gas | |
US20200173689A1 (en) | Inward fired low nox premix burner | |
CA2827393C (en) | Top-firing hot blast stove | |
EP3531797B1 (en) | Infrared radiant heater | |
US9915425B2 (en) | Igniter and flame sensor assembly with opening | |
JP2005521026A (en) | Removable ignition port plug for use in burners | |
CN203116019U (en) | Combustion gas short-flame and high-temperature industrial combustor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: CARRIER CORPORATION, CONNECTICUT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROY, WILIAM J.;CAREY, COLIN WILLIAM;BUSHMAN, KYLE;SIGNING DATES FROM 20111018 TO 20111025;REEL/FRAME:028711/0833 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |