CN102209869A - A gas burner apparatus with pre-mixing - Google Patents
A gas burner apparatus with pre-mixing Download PDFInfo
- Publication number
- CN102209869A CN102209869A CN2009801448313A CN200980144831A CN102209869A CN 102209869 A CN102209869 A CN 102209869A CN 2009801448313 A CN2009801448313 A CN 2009801448313A CN 200980144831 A CN200980144831 A CN 200980144831A CN 102209869 A CN102209869 A CN 102209869A
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- Prior art keywords
- seal
- section
- hole
- burner
- cross
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- 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
- F23D14/34—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
- F23D14/36—Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air in which the compressor and burner form a single unit
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- Pre-Mixing And Non-Premixing Gas Burner (AREA)
Abstract
A gas burner apparatus with pre-mixing comprises mixing means for mixing an air/gas mixture which is intended to be conveyed to the intake section of a fan unit (4), whose delivery is conveyed to a combustion head (2) of the burner, the mixing means comprising a plurality of ducts (12), each of which has a region in the form of a Venturi duct with contiguous portions (16a, 16b) which are convergent/divergent, with respect to the direction of flow, and with a restricted duct cross-section (16c) defined between the convergent portion and the divergent portion, there being conveyed in each convergent portion (16a) an air flow which is intended to be mixed with a gas flow which is introduced into the duct at the restricted cross-section (16c), the air/gas mixture being conveyed through the divergent portion (16b) of the duct to the intake section (10) of the fan unit (4).; Each duct (12) of the plurality is defined by the engagement of at least a first and a second mutually separate burner region (A,B), along a mutual engagement profile, there being carried on each of the burner regions (A,B) corresponding, separate portions of each of the ducts (12), at least a first fluid-tight sealing element (20) being provided between the burner regions (A,B) along the engagement profile in order to prevent gas and/or air from being drawn in with respect to the ducts (12). The at least first sealing element (20) is interposed between the burner regions (A,B) at the restricted cross-section (16c) of each of the Venturi ducts of the plurality of ducts (12); the at least first sealing element (20) has through-holes (21) which define the restricted cross-section of the corresponding Venturi duct in at least some of the plurality of ducts (12), as a result of the engagement of the burner regions (A,B) along the engagement profile and is interchangeable with at least a second sealing element (20', 20'') which has corresponding through-holes (21', 21'').
Description
Technical field
The present invention relates to premix gas combustion apparatus, this gas combustion apparatus has the feature of illustrating as in claim 1 preamble.
Technical background
In specific technical field, the gas burner of known configuration premix for example, is used for condenser boiler, and its combustion head is applicable to and is received in the combustion chamber that the air mixture is fed to the combustion chamber by sending of fan unit.Example from the known this burner apparatus of disclosures in Italian patent application PD2007A000413, a kind of burner has been described in this application, this burner be connected to the combustion chamber lid or another kind of like closure member and in this burner, be coaxially installed with fan unit and cap shape combustion head.In this application, air mixture in the burning of the surface of the combustion head of burner is a plurality of mixing tube forms, in a single day these a plurality of mixing tubes mix with gas with suction air and air towards the external opening of burner, then by the import cross section of mixing tube guiding towards fan.Each these pipe works under the pressure that reduces (fan is positioned at the downstream) usually and is the venturi form of tubes, that is to say, form by adjacent contraction section with respect to diffusion part, between these pipes, be formed with the minimum cross-section of Venturi tube, in this cross section, produce pressure signal decay (pressure minimizing).This signal is generally used for from valve suction inflammable gas, then, this inflammable gas is introduced mixing tube to mix with air by the pressure suction that reduces.
The pressure signal that is created in the minimum cross-section of Venturi tube also depends on various parameters.For example, if the revolution of fan increases,, will therefore the suction of bigger air stream also be produced bigger pressure drop by this minimum cross-section with bigger speed for given geometry.In addition, if the flow resistance in fan downstream changes, then therefore signal changes.For example, if flow resistance increases, then signal reduces, and increases level before in order signal to be maintained flow resistance, needs usually to use to have another Venturi tube of littler minimum cross-section.But this causes the increase of cost, because this need produce and the outer combustor component of quota.This problem means in the application that must change this parts for correct adjustment burner especially obvious in the adjusting range of thermal output.
Summary of the invention
Provide a kind of burner apparatus by problem solved by the invention, be constructed to be permeable to overcome about the illustrated restriction of the prior art of being quoted on this burner apparatus structure He on the function.
This problem is solved by the burner apparatus according to the appended claims structure by the present invention.
Description of drawings
From of the following detailed description of reference accompanying drawing, will be better appreciated by other features and advantages of the present invention with a preferred embodiment shown in the unrestricted way of example, in the accompanying drawing:
-Fig. 1 is the stereogram of the partly cut-away of burner apparatus constructed according to the invention,
-Fig. 2 is the schematic diagram of details of the burner of Fig. 1,
-Fig. 2 A is the schematic diagram of another details of Fig. 1,
-Fig. 3 and 4 is stereograms of partly cut-away of the details of each figure of front in the different installation step,
-Fig. 5 and 6 is the front views of details that are Fig. 4 of two different structural forms,
-Fig. 7 is another front view of another structural change of the details of Fig. 5 and 6.
The specific embodiment
Accompanying drawing shown in the reference, premix gas combustion apparatus constructed according to the invention totally indicate with Reference numeral 1.
Burner comprises combustion head 2, and combustion head 2 preferably has cap columnar structure, and its base portion is advantageously fixed to and covers 3, and lid 3 constitutes the closure member of the combustion chamber (not shown) related with burner.
Fan unit 4 (impeller 5 of its centrifugal type is coaxial with combustion head) also is rotatably supported in and covers.The pivot center of the impeller that is activated by motor 6 indicates with Reference numeral X.
Be provided with distribution member after combustion head 2 and with respect to combustion head 2 place inside, distribution member indicates with Reference numeral 7 and also is cap shape form and be provided with the through hole that is used for the air mixture is assigned to combustion head roughly.
Be formed in the burner body, remain with inner space or volume in distribution member 7 and between the impeller 5 of distribution member 7, this inner space or volume indicate with Reference numeral 8 usually, and in inner space or volume with separately and different modes send from the air of sending cross section 9 and being directed to the mixture of distribution member 7 and being directed to the import cross section 10 of fan of fan and mix logistics.Describe this burner structure in the disclosures in Italian patent application that mention and that submit to application number PD2007A000413 in the above, about the hereinafter clear any details illustrated of this paper, referring to this patent application.
More particularly, be provided with more than first dispatch tube and more than second dispatch tube 12, more than first dispatch tube indicates with Reference numeral 11 and combustible air/admixture of gas can be sent to combustion head 2, combustible air/admixture of gas is supplied by the side 9 of sending of fan, and more than second dispatch tube 12 can be suitable for sending spontaneous combustion device air outside and/or gas stream along import cross section 10 directions of fan.This import cross section is arranged in the same side of head 2 and is communicated with first Room 13, and first Room 13 is formed in the volumetric spaces 8, and volumetric spaces 8 is between head 2 and impeller 5.Also the air mixing logistics of sending side that obtains fan is intersected with air that is directed to the import cross section and/or gas stream according to size and a plurality of pipes 11 of structure choice and 12, property illustrates as schematically shown in Figure 2, above-mentioned two kinds of streams transmit in a plurality of pipes 11 and 12, thereby are separated from each other with 12 and different by managing 11 respectively.
The pipe 11 of respective numbers is along the zone of sending cross section 9 of fan, in the outside extension of the overall diameter of impeller 5, thereby this is sent the cross section be connected to second Room 14 that is used to distribute mixture, the space 8 interior walls 15 that also pass through that chamber 14 also is formed between distribution member 7 and the impeller separate with chamber 13.
Pipe 11 in the downstream of sending cross section 9 with preselected angular separation, especially circumferentially distribute with uniform angular separation.With respect to flow direction, each pipe 11 also has the inlet opening 11a that is used for mixture (from the side of sending of fan) and at the exhaust openings 11b at end opposite place, in inlet opening 11a, fluid has dominant radial component, in exhaust openings 11b, fluid has dominant axial component.In the downstream of exhaust openings, chamber 14 is configured to further depart from fluid so that it is transmitted along distribution member 7, thereby supplies combustion head 2 effectively.
More than second dispatch tube 12 is configured to and will thus premixed air/gas be spread the import cross section 10 of delivering to fan from the gas generation premix merging of extraneous air and inlet tube.
Each pipe 12 is opened (at the 12a place, import cross section of pipe) in the outside of burner, by opening in the outside, suction air stream also extends to opposite discharging cross section 12b, discharges cross section 12b and is communicated with placement with the import cross section 10 of fan.In the pipe 12 one hereinafter will only be described, because these pipes have identical construction.
Each pipe 12 is provided with mixing arrangement, this device comprises the part of the pipe that is configured to Venturi tube own, that is to say, comprise the contraction section 16a that extends into adjacent diffusion part 16b, the limited cross section (smallest cross-sectional) that Venturi tube is arranged that forms between these parts, this limited cross section indicates with Reference numeral 16c.At this smallest cross-sectional 16c place, the gas of the pressure suction that reduces that is caused by smallest cross-sectional stream is introduced Venturi tube.This pipe indicates with Reference numeral 17 and extends with valve 18 forms, and conduit 17 only schematically shows and can inflammable gas be conveyed into respective tube 12 at smallest cross-sectional 16c place.Fig. 2 A is the pure schematic diagram about the preselected structure of Venturi tube.
Each pipe 12 also forms along with the cooperation of the first area of burner and second area, first area and second area are separated from each other along the surface engagement profile, usually the first area that indicates with Reference numeral A is formed on and covers in 3 the base structure, lid 3 extends axially in the upstream of impeller, and the second area that indicates with Reference numeral B is arranged in the downstream of impeller and is arranged in the delivery zone of burner at second area mesospore 15 usually.The fluid tight seal that indicates with Reference numeral 20 is inserted between burner region A and the B, and fluid tight seal has and prevents that gas and/or air are with the major function between relative mode suction pipe 11 and 12.
With reference to Fig. 5, through hole 21 is circumferentially arranged with even angular separation along the annular wall of seal 20.When illustrating with cutaway view, they have roughly droplet-like shape.As shown in Fig. 5 knows, the respective through hole 22 that the cross section of its shape extends along main direction is set, and through hole 22 is in the adjacent position with respect to each hole 21.For each pipe 17, these holes 22 form the channel cross-section that gas flows at the limited section of Venturi tube, inflammable gas are introduced the air stream that is transmitted by pipe 12 at this channel cross-section.
In more detail, each pipe 17 is communicated with at the upstream and the passage 17a (passage 17a extends at burner region A with circular pattern, and is concentric with respect to axis X) of seal 20, is used for distributing and sending the gas of managing 17 valves from each.Passage 17a is limited jointly by burner region A and the seal 20 adjacent with regional A.
Also be formed with another a plurality of through holes in seal 20, another a plurality of through holes all indicate and define the cross section that is mixed the passage of logistics by the air of sending 9 supplies and being directed to the distribution member 7 of burner head of fan with Reference numeral 23.In other words, these holes 23 limit each pipe 11 cross section (in the zone of seal 20) and along the circumferential profile of seal, with preselected, uniform angular separation is alignd with hole 21 and locate.In the preferred embodiment of Fig. 5, to respect to hole 21 in an alternating manner along the hole 23 that the common circular contour concentric with respect to axis X is provided with, such setting is arranged, make each hole 23 insert between a pair of adjacent holes 21, know as Fig. 5 to illustrate.
According to principal character of the present invention, seal 20 is configured to and can exchanges (shown in Fig. 4 and 6) with at least the second seal that indicates with Reference numeral 20 ', second seal 20 ' is provided with a plurality of through holes 21 ', through hole 21 ' has the effect identical with the respective aperture 21 of seal 20, the overall dimension of the cross section in these holes 21 ' different with the overall dimension of the cross section in hole 21 ' (greater or lesser).So, exchange, thereby can change the overall sectional relevant to adjust burner according to desired thermal output and/or the flow resistance that is present in the air mixture supply pipe with the air stream of suction burner by using seal 20 ' and seal 20.
Should be understood that the present invention allows to be provided with a plurality of seals, it is advantageously preselected that the quantity in hole 21 and shape are moved desired intervals of power according to desired adjustment and burner.Hereinafter incite somebody to action the only reference second interchangeable seal spare, but a plurality of interchangeable seal spares can be provided.
In first preferred embodiment, in seal 20 and 20 ', be provided with equal number and the hole 21,21 ' and 23,23 ' of positioned alternate in these seals respectively, as indicated above and shown in Fig. 5 and 6.Each hole 21 is spaced apart from each other equably, and hole 21 ', 23 and 23 ' also is the same.
Second seal 20 ' and seal 20 are different to be that the cross sectional dimensions in the hole 21 ' that each seal 20 ' is provided with is bigger than the size of the cross section in the hole 21 of each corresponding seal 20.
In the modification of seal 20 ' (usually with Reference numeral 20 " indicate), alternately with hole 21 " quantity be set as different with the quantity in hole 21 ', but hole 21 ' and 21 " have an identical cross section.Be clearly shown that among Fig. 7 (this modification is shown) how only six holes 21 be set ", be different from seal 20 ' with nine respective aperture 21 '.Therefore, for hole 21 ' and 21 " given cross section, when seal 20 ' and seal 20 " when exchanging, overall sectional changes.
Certainly, other structural change also is possible, for each set and interchangeable seal, all modification all are used to be provided for the not isostructure (in the limited cross section of Venturi tube, thereby to produce the mode of required pressure signal and control gas trap) in standardization hole of the passage of inlet air.Advantageously, for each power bracket, only pass through the seal of exchange, and do not have any other extra parts and all do not have any modification in lid side and other mechanism components of sending side, also can guarantee wide modulation in this way according to the requirement thermal power at burner.Therefore, even, when having the requiring of wide modulation range, also simplify and made things convenient for the control of burner for the thermal power of device.
If consider profitablely,, can also provide the throttling of the channel cross-section of gas in the pipe 17 by being provided with and the difference setting (about the quantity and the size in cross section) of interchangeable each seal endoporus 22.
The present invention has solved the problem of being set forth thus, has produced the above-mentioned advantage with respect to known arrangement.
Claims (10)
1. premix gas combustion apparatus, comprise mixing arrangement, described mixing arrangement is used for mixing the air mixture in the import cross section that will be sent to fan unit (4), described fan unit (4) send the combustion head (2) that is sent to described burner, described mixing arrangement comprises a plurality of pipes (12), each described pipe (12) has the zone that is the venturi form of tubes, described zone has the adjacent part (16a with respect to flow direction convergence/diffusion, 16b) and have a limited pipe cross section (16c) that is formed between described contraction section and the described diffusion part, air stream transmission each contraction section (16a) in that will mix with the air-flow of locating to introduce described pipe at described limited cross section (16c), described air mixture is sent to the described import cross section (10) of described fan unit (4) by the described diffusion part (16b) of described pipe, each is by at least the first and second burner region (A separated from each other in described a plurality of pipe (12), B) along work in coordination profile cooperation and form, at described burner region (A, B) carry in the described pipe (12) each corresponding separate section on each, along described conjugate profile at described burner region (A, B) be provided with at least first fluid tight seal spare (20) between to prevent with respect to described pipe (12) suction gas and/or air, it is characterized in that, described at least the first seal (20) described limited cross section (16c) of each in the Venturi tube of described a plurality of pipes (12) locates to insert described burner region (A, B) between
-described at least the first seal (20) has through hole (21), because described burner region (A, B) along the cooperation of described conjugate profile, described through hole (21) limits in described a plurality of pipes (12) at least the described limited cross section of corresponding Venturi tube in some,
-described at least the first seal (20) can with at least the second seal (20 ', 20 ") exchange; described at least the second seal (20 '; 20 ") has corresponding through hole (21 ', 21 "); the overall dimension of the cross section that described through hole (21 '; 21 ") is relevant is different with the overall dimension of the cross section of the described respective aperture (21) of described first seal (20), thereby change the overall cross section that a plurality of holes by described pipe limit, according to desired heat power and/or be present in and be used for described air mixture is fed to the flow resistance of described pipe of described burner with described at least the first seal (20) and described at least the second seal (20 ', 20 ") exchange, and therefore control described burner.
2. burner apparatus as claimed in claim 1, it is characterized in that, interchangeable described at least the first seal (20) and second seal (20 ', 20 ") be round-shaped and be located at through hole in each respective seals (21; 21 ', 21 ") and be arranged to spaced apart circumferential each other and angledly.
3. burner apparatus as claimed in claim 1 or 2, it is characterized in that, the cross section that is arranged on the described hole (21) in described first seal (20) all has identical preliminary dimension and is arranged on described second seal (20 ', the cross section in described hole 20 ") (21 '; 21 ") all has identical preliminary dimension, the preliminary dimension in described hole (21 ', 21 ") is different with the preliminary dimension in described hole (21) in being arranged on described first seal (20).
4. burner apparatus as claimed in claim 3 is characterized in that, the described hole (21) in described first seal (20) is arranged to quantitatively equal the described hole (21 ') of described second seal (20 ').
5. burner apparatus as claimed in claim 1 or 2, it is characterized in that, the cross sectional dimensions in each hole of the cross sectional dimensions in each hole (21) of described first seal (20) and described second seal (20 ") (21 ") equates, and the total quantity of the hole of the total quantity in the hole (21) of described first seal (20) and described second seal (20 ") (21 ") is different.
6. burner apparatus as claimed in claim 1 or 2 is characterized in that, the described hole (21,21 ') that is arranged in described first seal (20) and second seal (20 ') is evenly spaced apart each other with the predetermined angle spacing.
7. each described burner apparatus in the claim as described above, it is characterized in that, described hole (21 by described respective seals, 21 ', 21 ") be provided with the passage of the air stream that is used for the suction burner; corresponding second, the hole that separates (22,22 ', 22 ") are arranged in the described seal and limit the cross section of passage of the gas stream of the described limited cross section of introducing each Venturi tube.
8. burner apparatus as claimed in claim 7 is characterized in that, for each seal (20,20 '), is provided with the hole (22,22 ') that is used for gas passage in respective aperture (21, the 21 ') adjacent position with the passage that is used for inlet air.
9. each described burner apparatus in the claim as described above, it is characterized in that, at each described seal (20,20 ', 20 " be provided with a plurality of third through-holes (23; 23 '; 23 ")), described third through-hole (23,23 ', 23 ") limit pipe (A, described conjugate profile place B) can transmit the cross section that described air is mixed the passage of logistics, and described air is mixed logistics along described the send side (9) of described burner head (2) direction from described fan unit (4) at described burner region.
10. burner apparatus as claimed in claim 9 is characterized in that, the described hole of described the 3rd hole (23,23 ', 23 ") and the described passage that is used for described inlet air alternately circumferential arrangement in each described seal (20,20 ', 20 ").
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITPD2008A000324A IT1391676B1 (en) | 2008-11-07 | 2008-11-07 | GAS BURNER UNIT WITH PRE-MIXING |
| ITPD2008A000324 | 2008-11-07 | ||
| PCT/IT2009/000487 WO2010052746A2 (en) | 2008-11-07 | 2009-10-27 | A gas burner apparatus with pre-mixing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102209869A true CN102209869A (en) | 2011-10-05 |
| CN102209869B CN102209869B (en) | 2013-09-04 |
Family
ID=41128215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801448313A Expired - Fee Related CN102209869B (en) | 2008-11-07 | 2009-10-27 | A gas burner apparatus with pre-mixing |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20110217664A1 (en) |
| EP (1) | EP2342496B8 (en) |
| CN (1) | CN102209869B (en) |
| CA (1) | CA2742758C (en) |
| IT (1) | IT1391676B1 (en) |
| RU (1) | RU2511820C2 (en) |
| UA (1) | UA101997C2 (en) |
| WO (1) | WO2010052746A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105612386A (en) * | 2013-07-05 | 2016-05-25 | 西特股份公司 | An air-gas mixer device for premix burner equipment |
| CN113680224A (en) * | 2020-05-19 | 2021-11-23 | 彼特威有限责任公司 | Gas/air mixing device for gas burner |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2013200950B2 (en) | 2012-02-16 | 2014-05-29 | David M. Christensen | Control system for space heater/hearth |
| FR3018900B1 (en) * | 2014-03-19 | 2016-04-15 | Yahtec | BURNER DEVICE WITH PRE GAS MIX |
| CN107218603B (en) * | 2017-06-27 | 2019-12-06 | 珠海优特智厨科技有限公司 | Mixing device and gas equipment with same |
| IT202100025352A1 (en) * | 2021-10-04 | 2023-04-04 | Raffaele Antonio Spezia | APPLICATIONS OF A MICRO NOZZLE ELEMENT |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1637772A (en) * | 1923-03-22 | 1927-08-02 | Messer Griesheim Gmbh | Air-blast gas burner |
| US3289695A (en) * | 1964-11-16 | 1966-12-06 | Waterous Co | Centrifugal pump transfer valve |
| US4249758B1 (en) * | 1978-08-25 | 1993-11-23 | Robert Harris Company, Inc. | Ductwork connecting |
| SU1337607A1 (en) * | 1986-01-16 | 1987-09-15 | Среднеазиатский Филиал Всесоюзного Научно-Исследовательского Института Использования Газа В Народном Хозяйстве И Подземного Хранения Нефти,Нефтепродуктов И Сжиженных Газов | Block burner |
| GB8801785D0 (en) * | 1988-01-27 | 1988-02-24 | Burco Dean Appliances Ltd | Gas burner assemblies |
| DE4219443A1 (en) * | 1992-06-13 | 1993-12-16 | Hans Dr Viesmann | Radiation burner for central heating boiler - has wire mesh burner face with curved section in downstream direction aligned with support aperture |
| EP0762051B1 (en) * | 1993-12-06 | 1999-08-11 | Papst-Motoren Gmbh & Co. Kg | Blower for gas premix burner |
| JP3642588B2 (en) * | 1994-08-04 | 2005-04-27 | 日本ガスケット株式会社 | Metal gasket |
| US5669218A (en) * | 1995-05-31 | 1997-09-23 | Dresser-Rand Company | Premix fuel nozzle |
| ES2141464T3 (en) * | 1996-10-03 | 2000-03-16 | Siabs Industry S R L | DEVICE TO SUPPLY A GAS-AIR MIXTURE TO BURNERS, PARTICULARLY FOR HEATING APPLIANCES. |
| IT1315743B1 (en) * | 2000-10-03 | 2003-03-18 | Sit La Precisa Spa | IMPROVED AIR-GAS MIXER DEVICE. |
| CN2454642Y (en) * | 2000-12-07 | 2001-10-17 | 金志刚 | Air-injection gas all-premixing combustion apparatus |
| ITPD20010023A1 (en) * | 2001-02-01 | 2002-08-01 | Sit La Precisa Spa | IMPROVED AIR-GAS MIXER DEVICE. |
| DE10349344B3 (en) * | 2003-10-23 | 2005-06-30 | Ebm-Papst Landshut Gmbh | Blower with laminar element in front of the suction opening |
| JP2005246371A (en) * | 2004-02-05 | 2005-09-15 | Denso Corp | Gas mixing apparatus |
| DE102007022008B4 (en) * | 2007-05-08 | 2009-02-26 | Saia-Burgess Dresden Gmbh | Combined fan / gas valve unit |
| ITPD20070363A1 (en) * | 2007-11-06 | 2009-05-07 | Sit La Precisa Spa | BURNER, IN PARTICULAR GAS BURNER WITH PRE-MIXING |
| ITPD20070416A1 (en) * | 2007-12-19 | 2009-06-20 | Ln 2 Srl Socio Unico | FLUID DYNAMIC MACHINE, IN PARTICULAR FAN OF CENTRIFUGAL TYPE |
| ITPD20070414A1 (en) * | 2007-12-19 | 2009-06-20 | Ln 2 Srl Socio Unico | CENTRIFUGAL FAN |
| ITPD20070413A1 (en) * | 2007-12-19 | 2009-06-20 | Ln 2 Srl Socio Unico | FAN ASSEMBLY FOR GAS BURNERS WITH PRE-MIXING AND BURNER EQUIPMENT INCLUDING THE FAN. |
| ITPD20080005A1 (en) * | 2008-01-08 | 2009-07-09 | Ln 2 S R L | AIR-GAS MIXER DEVICE, PARTICULARLY FOR PRE-MIXING BURNER APPLIANCES. |
| ITPD20080006A1 (en) * | 2008-01-08 | 2009-07-09 | Ln 2 S R L | ENTRY DEVICE FOR AIR / GAS FLOW IN A FAN UNIT, PARTICULARLY FOR GAS BURNERS WITH PRE-MIXING. |
-
2008
- 2008-11-07 IT ITPD2008A000324A patent/IT1391676B1/en active
-
2009
- 2009-10-27 EP EP20090760634 patent/EP2342496B8/en active Active
- 2009-10-27 US US13/127,153 patent/US20110217664A1/en not_active Abandoned
- 2009-10-27 CN CN2009801448313A patent/CN102209869B/en not_active Expired - Fee Related
- 2009-10-27 RU RU2011122829/06A patent/RU2511820C2/en active
- 2009-10-27 UA UAA201107242A patent/UA101997C2/en unknown
- 2009-10-27 CA CA2742758A patent/CA2742758C/en not_active Expired - Fee Related
- 2009-10-27 WO PCT/IT2009/000487 patent/WO2010052746A2/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105612386A (en) * | 2013-07-05 | 2016-05-25 | 西特股份公司 | An air-gas mixer device for premix burner equipment |
| CN105612386B (en) * | 2013-07-05 | 2017-11-07 | 西特股份公司 | Air fuel gas mixer apparatus for premix burner equipment |
| CN113680224A (en) * | 2020-05-19 | 2021-11-23 | 彼特威有限责任公司 | Gas/air mixing device for gas burner |
Also Published As
| Publication number | Publication date |
|---|---|
| ITPD20080324A1 (en) | 2010-05-08 |
| WO2010052746A2 (en) | 2010-05-14 |
| RU2011122829A (en) | 2012-12-20 |
| CA2742758A1 (en) | 2010-05-14 |
| CN102209869B (en) | 2013-09-04 |
| US20110217664A1 (en) | 2011-09-08 |
| WO2010052746A8 (en) | 2010-07-08 |
| IT1391676B1 (en) | 2012-01-17 |
| CA2742758C (en) | 2017-03-07 |
| WO2010052746A3 (en) | 2011-04-07 |
| EP2342496A2 (en) | 2011-07-13 |
| EP2342496B8 (en) | 2015-04-22 |
| EP2342496B1 (en) | 2015-02-25 |
| UA101997C2 (en) | 2013-05-27 |
| RU2511820C2 (en) | 2014-04-10 |
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