JP5380304B2 - Gas boiler for burner - Google Patents

Gas boiler for burner Download PDF

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Publication number
JP5380304B2
JP5380304B2 JP2009546326A JP2009546326A JP5380304B2 JP 5380304 B2 JP5380304 B2 JP 5380304B2 JP 2009546326 A JP2009546326 A JP 2009546326A JP 2009546326 A JP2009546326 A JP 2009546326A JP 5380304 B2 JP5380304 B2 JP 5380304B2
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JP
Japan
Prior art keywords
burner
plate
casing
end
gas
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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.)
Expired - Fee Related
Application number
JP2009546326A
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Japanese (ja)
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JP2010516988A (en
Inventor
チョン ヒ イ
Original Assignee
キョントン ナビエン カンパニー リミテッドKyungdong Navien Co., Ltd.
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Priority to KR1020070006231A priority Critical patent/KR100808318B1/en
Priority to KR10-2007-0006231 priority
Application filed by キョントン ナビエン カンパニー リミテッドKyungdong Navien Co., Ltd. filed Critical キョントン ナビエン カンパニー リミテッドKyungdong Navien Co., Ltd.
Priority to PCT/KR2008/000339 priority patent/WO2008088198A1/en
Publication of JP2010516988A publication Critical patent/JP2010516988A/en
Application granted granted Critical
Publication of JP5380304B2 publication Critical patent/JP5380304B2/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/10Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
    • F23D14/105Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head with injector axis parallel to the burner head axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • F23D14/04Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
    • F23D14/045Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with a plurality of burner bars assembled together, e.g. in a grid-like arrangement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/48Nozzles
    • F23D14/58Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F23D14/583Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration of elongated shape, e.g. slits

Description

  The present invention stably introduces gas and primary air into the top plate, and raises the flame by providing the main flame outlet in the inclined part in order to improve the ignition performance and combustion efficiency in the burner body. The present invention relates to a burner for a gas boiler that realizes stable combustion without causing the combustion.

  In general, a burner used in a gas boiler or an oil boiler is a device that appropriately mixes gas or oil and air and causes combustion. According to a mixing ratio of primary air and secondary air, a red flame burner, a Bunsen burner, And premix gas burners.

  Red flame burners are commonly used in gun-type burners, where fuel is injected and air is mixed with fuel and burned. Bunsen type burners are categorized as Bunsen burners or semi-bunsen burners, which first mix injected fuel and primary air and then supply and burn additional secondary air to actually cause complete combustion.

  The premix burner burns only with primary air and uses an impeller to increase the mixing ratio of fuel and air.

  In the related art Bunsen burner having the above-described configuration, a circular burner is generally equipped with one venturi tube and one nozzle unit. Therefore, it has been difficult to stabilize combustion when the gas supply pressure is reduced during high-usage time periods or when the volume of the gas is contracted as the outside air temperature is reduced.

  In addition, the flame mouth that forms the flame is provided on the side of the burner cover, so when secondary air is supplied perpendicular to the flame mouth, the flame rises and the lack of secondary air causes the flame mouth to On the upper side of the flame, incomplete combustion occurs. In addition, the top plate of the burner is overheated due to heat concentration, thereby shortening the life of the burner.

  In addition, since each individual venturi tube is attached to the side of the burner, the overall size of the burner is increased. In the bar burner, the flame opening is formed through the horizontal surface above the burner, so that the secondary air is deficient, the flame becomes longer, and carbon monoxide, nitrogen oxides, etc. are generated. In addition, it is necessary to prepare a plurality of separate burner parts, leading to an increase in materials and manufacturing costs. Therefore, countermeasures are necessary.

  The present invention has been made to solve the above problems, and an object of the present invention is to prevent the rise of flame passing through the main flame outlet of the burner body and to achieve the most efficient and stable combustion. It is to provide a boiler burner.

  In order to achieve the above object, a gas boiler burner of the present invention is connected to a casing having a space inside, a blower connected to the lower surface of the casing and supplying outside air to the inside of the casing, and a side surface of the casing, A nozzle unit that injects gas at high speed through the front end disposed inside the casing, and a predetermined distance from the bottom surface of the casing, and a main flame port is formed at regular intervals on both sides in the longitudinal direction of the burner. A burner main body having a cross section formed in a polygonal shape and a burner main body having a cross section formed on one end side of the burner main body, from the front end of the nozzle unit A venturi plate with a venturi hole that mixes the injected gas with the primary air and flows into the burner body, and the burner body And an end plate facing the venturi plate, and horizontally disposed at the inner center of the burner body, and a guide plate for guiding the gas mixture flowing from the venturi hole and the primary air to the inner upper part of the burner body It is characterized by that.

  Here, the burner top plate and the burner bottom plate are preferably made of different materials. For example, the burner top plate is preferably made of stainless steel and the burner bottom plate is preferably made of steel.

  Preferably, the burner top plate has a first horizontal part in which an ignition hole for transferring ignition to the main flame opening is formed, and downwards from both side edges in the longitudinal direction of the first horizontal part outward at a predetermined angle. And a first inclined portion integrally formed so as to be bent. The burner bottom plate includes a second inclined portion that extends downward inward from the lower end edge of the first inclined portion, and a second horizontal portion that is integrally formed with the second inclined portion in the horizontal direction.

  In this case, it is preferable that the main flame opening is formed so as to penetrate the first inclined portion of the burner top plate.

  In addition, the first inclined portion is preferably inclined at an angle of 40 degrees to 50 degrees with respect to the first horizontal portion in order to minimize the rise of the flame passing through the main flame opening.

  In a preferred embodiment of the present invention, one end of the guide plate is in contact with the venturi plate and the other end of the guide plate is the end so that the gas mixture flowing from the venturi hole and the primary air can be smoothly guided to the burner top plate side. It arrange | positions so that it may space apart from a plate.

  It is desirable to provide at least one burner body inside the casing.

  Further, the gas boiler burner of the present invention comprises a secondary air diffusion plate on the lower side of the burner body, and a plurality of secondary air holes for supplying secondary air to the outer periphery of the burner body are formed in the diffusion plate, One end of the diffusion plate is connected to the casing and the burner body, a bent wall that is bent upward is formed at the other end of the diffusion plate, and a locking portion that is inserted into the venturi hole of the venturi plate is provided on the bent wall. To do.

  As described above, according to the gas boiler burner of the present invention, it can be replaced with an existing circular burner or an instantaneous bar type burner, and the flame holding effect is enhanced by forming the main flame opening in the inclined portion. Thermal power can be maintained by always supplying secondary air between the mouths. Furthermore, since combustion efficiency is considerably improved, the generation of carbon monoxide, nitrogen oxides and the like can be reduced, and an environmentally friendly boiler can be configured. Further, the top plate and the bottom plate of the burner main body can be made of different materials, the cost can be reduced, the flame length can be shortened, and the width of the burner can be reduced.

  In addition, since the overall size of the boiler is reduced, further effects can be brought about with respect to carrying and mounting.

1 is an overall configuration explanatory view of a gas boiler burner according to the present invention. FIG. FIG. 3 is an explanatory diagram of the overall operation of a gas boiler burner according to the present invention. It is a longitudinal cross-sectional view of the burner main body which shows the flow of primary air. It is a cross-sectional view of the casing which shows the flow of secondary air.

  Embodiments of a gas boiler burner according to the present invention having the above-described configuration will be described below with reference to the accompanying drawings.

  FIG. 1 shows the configuration of a gas boiler burner according to the present invention, and FIGS. 2 to 4 show the operation of the gas boiler burner according to the present invention.

  As shown in FIG. 1, in this gas boiler, a burner casing 10 is disposed below the heat exchanger 1, and a burner body 100 is installed in the internal space of the casing 10. A blower 20 is connected to the lower part of the casing 10, and outside air is supplied into the casing 10 by the blower 20. A nozzle unit 30 is connected to a side surface of the casing 10, and fuel gas is injected at high speed from a front end injection port of the nozzle unit 30 disposed inside the casing 10. The burner body 100 combines a burner bottom plate 120 on the lower side of the burner top plate 110 to form a hexagonal cylindrical body 101, and the cylindrical body 101 is arranged at a predetermined distance from the bottom surface of the casing 10. Yes. On the burner top plate 110, a plurality of main flame openings 112 that form a flame are regularly arranged at predetermined intervals on both sides in the longitudinal direction of the cylindrical body 101.

  One end open surface of the burner body 100 is covered with a venturi plate 200, and an end plate 300 (see FIG. 3) is provided on the other end surface of the burner body 100 so as to face the venturi plate 200. A venturi hole 210 is formed in the venturi plate 200 at a position facing the front end of the nozzle unit 30. The gas injected from the front end of the nozzle unit 30 is mixed with the primary air from the blower 20 and flows into the burner body 100 through the venturi hole 210. Inside the burner body 100, a guide plate 400 is horizontally disposed at the center in the height direction. Then, the gas mixture flowing from the venturi hole 210 and the primary air mixture are guided to the upper inner side of the burner body 100 by the guide plate 400.

  The burner top plate 110 and the burner bottom plate 120 are made of different materials. For example, the burner top plate 110 is made of stainless steel, and the burner bottom plate 120 is made of steel.

  The burner top plate 110 includes a first horizontal portion 114 extending in the horizontal direction at the top of the burner body 100 and a pair of first inclined portions 116 extending obliquely downward from the first horizontal portion 114. At both ends in the longitudinal direction of the first horizontal portion 114, ignition holes 113 and 113 'for sequentially transferring the ignition to the main flame port 112 are formed at a predetermined interval. The first inclined portion 116 is integrally formed so as to be bent downward at a predetermined angle from both side edges in the longitudinal direction of the first horizontal portion 114. The burner bottom plate 120 has a pair of second inclined portions 122 extending downward from the lower end edge of the first inclined portion 116 and a second horizontal portion integrally formed so as to extend in the horizontal direction between the lower ends of the second inclined portions 122. Part 124.

  The main flame port 112 is formed so as to penetrate the first inclined portion 116 of the burner top plate 110.

  The first inclined portion 116 is inclined at an angle of 40 ° to 50 ° with respect to the first horizontal portion 114 in order to minimize the rise of the flame passing through the main flame port 112.

  As shown in FIG. 3, the guide plate 400 is horizontally disposed at a position higher than the venturi hole 210, one end abuts on the venturi plate 200, and the other end is separated from the end plate 300. The gas mixture from the nozzle unit 30 and the primary air flows into the lower side of the guide plate 400 from the venturi hole 210 and passes through the gap between the guide plate 400 and the end plate 300 from the bottom to the burner. Guided to the inside of the top plate 110 and smoothly discharged from the plurality of main flame ports 112 to the outside of the burner body 100.

  As shown in FIG. 4, for example, two burner main bodies 100 are juxtaposed inside the casing 100.

  A secondary air diffusion plate 500 is horizontally installed below the burner body 100. The secondary air diffusion plate 500 is provided with a large number of secondary air holes 520 that diffuse the secondary air from the blower 20 to the outer periphery of the burner body 100. One end of the diffusion plate 500 is connected to the peripheral wall of the casing 10 and the second horizontal portion 124 of the burner body 100. A bent wall 510 (see FIGS. 1 and 2) is formed at the other end of the diffusion plate 500 so as to be bent at a right angle upward. The bent wall 510 is formed with a locking portion 512 whose inner side is opened, and the bent wall 510 is attached to the venturi plate 200 by inserting the locking portion 512 into the venturi hole 210.

  Next, the operation of the gas boiler burner configured as described above will be described.

  As shown in FIGS. 2 and 3, the heat exchanger 1 of the gas boiler is equipped with a water container (not shown) for receiving water and a hot water coil (not shown) above the burner body 100. . The fuel gas is supplied from a fuel supplier (not shown) to the nozzle unit 30 and is injected from the front end injection port of the nozzle unit 30 into the venturi hole 210 of the venturi plate 200. The injected gas entrains the primary air around the nozzle unit 30 and is supplied from the venturi hole 210 into the burner body 100 as indicated by the arrows in the figure.

  The fuel gas and the primary air are sufficiently mixed by the guide plate 400 in the process of flowing from the start end position A to the end position B in the burner body 100, and the mixed gas passes through the gap at the end position B and burner ceiling It is stably introduced into the inside of the plate 110 (see FIG. 2).

  Further, primary air and secondary air necessary for combustion of the burner are supplied from the blower 20 through the lower part of the casing 10 to the secondary air diffusion plate 500 and the venturi hole 210 of the venturi plate 200.

  Since many secondary air holes 520 are formed in the secondary air diffusion plate 500, the air supplied from the blower 20 passes through these holes 520 and is evenly distributed to the outer periphery of the burner body 100 as secondary air. Supplied in a diffused state.

  As shown in FIGS. 3 and 4, the mixed gas supplied to the inside of the burner top plate 110 through the gap of the guide plate 400 is an ignition hole 113 on one end side of the first horizontal portion 114 (see FIG. 1). After being ignited at, the ignition is sequentially transferred to the main flame port 112 on one end side of the first inclined portion 116.

  Further, the mixed gas is ignited in the ignition hole 113 ′ on the other end side of the first horizontal portion 114, and the ignition moves to the periphery of the main flame port 112 on the other end side of the first inclined portion 116, and as a result, As shown in FIG. 4, ignition occurs over all the main flame ports 112 of the burner top plate 110.

  That is, the primary air mixed with the fuel by the nozzle unit 30 passes through the guide plate 400 of the burner body 100 and flows into the burner top plate 110, and at the same time, the secondary air from the blower 20 is transferred to the diffusion plate 500. Passing through the hole 520, the gas is supplied to the outer periphery of the burner body 100, and a stable flame is formed in all the main flame ports 112.

  Since the burner top plate 110 of the burner body 100 is made of stainless steel, the heat resistance is improved. Moreover, since the 1st inclination part 116 has an inclination angle of 40 to 50 degree | times, the raise of the flame from the main flame opening 112 can be suppressed, and a flame can always be maintained in the stable state.

  It will be appreciated that the above technology can be variously improved, added and substituted without departing from the spirit and scope of the present invention. .

According to the burner for a gas boiler provided by the present invention, it is possible to realize stable combustion together with high-performance combustion without generating a rise in flame from the main flame opening of the burner body.

Claims (7)

  1. A casing having a space inside;
    A blower connected to the lower surface of the casing and supplying outside air to the inside of the casing;
    A nozzle unit connected to a side surface of the casing and for injecting gas at high speed through a front end disposed inside the casing;
    A burner top plate disposed at a predetermined distance from the bottom surface of the casing and having a main flame opening formed at regular intervals on both sides in the longitudinal direction of the burner, and a burner bottom plate connected to the lower side of the burner top plate A burner body having a polygonal cross section, and
    A venturi plate disposed on one end side of the burner body and having a venturi hole for mixing the gas injected from the front end of the nozzle unit with the primary air and allowing the gas to flow into the burner body;
    An end plate disposed on the other end side of the burner body and facing the venturi plate;
    A guide plate that is horizontally disposed at the inner center of the burner body and guides the gas mixture flowing from the venturi hole and the primary air to the inner upper part of the burner body ;
    The burner top plate is integrated with a first horizontal part in which an ignition hole is formed for transferring ignition to the main flame opening, and is bent downward at a predetermined angle from both side edges in the longitudinal direction of the first horizontal part. A first inclined portion formed,
    A burner for a gas boiler, wherein the main flame mouth is formed so as to penetrate the first inclined portion of the burner top plate .
  2.   The burner for a gas boiler according to claim 1, wherein the burner top plate and the burner bottom plate are made of different materials.
  3.   The burner bottom plate includes a second inclined portion that extends downward inward from a lower end edge of the first inclined portion, and a second horizontal portion that is integrally formed with the second inclined portion in the horizontal direction. The gas boiler burner described.
  4.   The gas boiler according to claim 3, wherein the first inclined portion is inclined at an angle of 40 degrees to 50 degrees with respect to the first horizontal portion in order to minimize the rise of the flame through the main flame outlet. Burner.
  5.   The guide plate is disposed so that one end is in contact with the venturi plate and the other end is separated from the end plate in order to smoothly flow the mixture of the gas flowing in from the venturi hole and the primary air to the burner top plate side. The gas boiler burner according to claim 1.
  6.   The gas boiler burner according to claim 1, wherein at least one burner body is provided inside the casing.
  7.   A secondary air diffusion plate is provided below the burner body, and a plurality of secondary air holes for diffusing secondary air to the outer periphery of the burner body are formed in the diffusion plate, and one end of the diffusion plate is disposed on the casing and the burner body. 2. The gas boiler burner according to claim 1, wherein a bent wall that is bent upward is formed at the other end of the diffusion plate, and a locking portion that is inserted into the venturi hole of the venturi plate is provided on the bent wall.
JP2009546326A 2007-01-19 2008-01-18 Gas boiler for burner Expired - Fee Related JP5380304B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
KR1020070006231A KR100808318B1 (en) 2007-01-19 2007-01-19 The burner for gas boilers
KR10-2007-0006231 2007-01-19
PCT/KR2008/000339 WO2008088198A1 (en) 2007-01-19 2008-01-18 Burner for gas boiler

Publications (2)

Publication Number Publication Date
JP2010516988A JP2010516988A (en) 2010-05-20
JP5380304B2 true JP5380304B2 (en) 2014-01-08

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Application Number Title Priority Date Filing Date
JP2009546326A Expired - Fee Related JP5380304B2 (en) 2007-01-19 2008-01-18 Gas boiler for burner

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US (1) US20100294214A1 (en)
EP (1) EP2115355A1 (en)
JP (1) JP5380304B2 (en)
KR (1) KR100808318B1 (en)
CN (1) CN101611263B (en)
WO (1) WO2008088198A1 (en)

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KR100883796B1 (en) * 2008-01-16 2009-02-19 주식회사 경동나비엔 Bunsen burner using lean rich combustion type
CN101571315B (en) * 2009-06-16 2012-05-16 艾欧史密斯(中国)热水器有限公司 Volumetric gas water heater
TWM391081U (en) * 2010-04-14 2010-10-21 Grand Mate Co Ltd Combustion chamber component for water heater
KR101214745B1 (en) * 2011-03-25 2012-12-21 주식회사 경동나비엔 Gas-air mixer with branch fluid paths
WO2015192143A1 (en) * 2014-06-13 2015-12-17 Integrated Energy LLC Systems, apparatus, and methods for treating waste materials
CN104132341B (en) * 2014-07-07 2017-01-18 宁波多贝机械实业有限公司 Gas boiler burners
PT108156A (en) * 2015-01-19 2016-07-19 Bosch Termotecnologia S A Burner

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Also Published As

Publication number Publication date
KR100808318B1 (en) 2008-02-27
JP2010516988A (en) 2010-05-20
EP2115355A1 (en) 2009-11-11
CN101611263A (en) 2009-12-23
CN101611263B (en) 2011-05-11
US20100294214A1 (en) 2010-11-25
WO2008088198A1 (en) 2008-07-24

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