JP4725829B2 - Surface burning burner - Google Patents

Surface burning burner Download PDF

Info

Publication number
JP4725829B2
JP4725829B2 JP2001225996A JP2001225996A JP4725829B2 JP 4725829 B2 JP4725829 B2 JP 4725829B2 JP 2001225996 A JP2001225996 A JP 2001225996A JP 2001225996 A JP2001225996 A JP 2001225996A JP 4725829 B2 JP4725829 B2 JP 4725829B2
Authority
JP
Japan
Prior art keywords
burner
flame hole
flame
hole forming
forming surface
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.)
Expired - Lifetime
Application number
JP2001225996A
Other languages
Japanese (ja)
Other versions
JP2003042414A (en
Inventor
貴紀 加藤
Original Assignee
株式会社パロマ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社パロマ filed Critical 株式会社パロマ
Priority to JP2001225996A priority Critical patent/JP4725829B2/en
Publication of JP2003042414A publication Critical patent/JP2003042414A/en
Application granted granted Critical
Publication of JP4725829B2 publication Critical patent/JP4725829B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Gas Burners (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は、複数の平板と波板とを交互に積層することにより、該平板と該波板との間に多数の炎孔を有する炎孔形成面を形成し、該炎孔形成面にて表面燃焼させる表面燃焼バーナに関する。
【0002】
【従来の技術】
従来から、複数の平板と波板とを交互に積層し平板と波板との間に多数の炎孔を形成して、この炎孔の表面付近で燃焼させる表面燃焼バーナが知られている。
この種の表面燃焼バーナの保炎性能の向上を図ったものとして、例えば、特公平6−21684号においては、図5に示されるように、平板3と波板4との間に断面形状が略L字状の保炎板部材13を挟み込み炎孔7を塞いで火炎を区画し、火炎間に複数の無炎孔部112を設けるようにしたものが既に提案されている。
【0003】
【発明が解決しようとする課題】
しかしながら、上述したような表面燃焼バーナ101では、保炎板部材13が隣接する火炎によって直接熱せられ高温となるために、熱耐久性が悪化するという問題があった。しかも、保炎板部材13で塞いだ部分の炎孔7を形成していた平板3と波板4とが無駄になってしまうという問題もある。
本発明の表面燃焼バーナは上記課題を解決し、保炎性能を向上させても、無駄な平板と波板とを作らない上に熱耐久性も悪化しない表面燃焼バーナを提供することを目的とする。
【0004】
【課題を解決するための手段】
上記課題を解決する本発明の請求項1記載の表面燃焼バーナは、
複数の平板と波板とを交互に積層することにより、該平板と該波板との間に複数の炎孔を有する炎孔形成面を形成し、該炎孔形成面を燃料ガスのガス流れに対する下流側に配して、該ガス流れに対する上流側から炎孔形成面に向けて燃焼に必要な全空気と燃料ガスとの混合ガスを流通させ、該炎孔形成面にて表面燃焼させる全一次式の表面燃焼バーナにおいて、
複数の平板と波板とを交互に積層した積層部と、この積層部を外側から保形支持する枠体を備えた複数のバーナユニットを、該枠体同士を重ね合わせて並設することにより、上記炎孔形成面を上記バーナユニット毎の炎孔部に分割する表面燃焼式バーナであって、
バーナユニットが並設された際に重ね合わされる前記枠体は、燃焼ガス流れに対する下流側が前記積層部に沿うように形成され、上流側が外側へ突出しかつ積層部と所定間隔を隔てて対向するように形成される屈曲板状の枠体であり、
当該枠体の突出形成した部分全体を重ね合わせて互いに当接させ、複数のバーナユニットを並設することにより、隣接するバーナユニット間を炎孔形成面の上流側で閉塞し上記炎孔部間に無炎口部を形成したことを要旨とする。
【0005】
上記構成を有する本発明の請求項1記載の表面燃焼バーナは、バーナユニットの枠体を外側へ突出形成して重ね合わせることにより、バーナユニット同士を連結しているので、炎孔部間に無炎孔部となる空間が形成される。すなわち炎孔部で表面燃焼する火炎は一つの大きな火炎として炎孔形成面全体にわたって連なるのではなく、炎孔部を一つの単位とした複数の火炎に区画されるので保炎性能が向上する。しかも、従来のように炎孔形成面を保炎板部材で塞いでいるわけではないため、保炎板部材が高温に熱せられて熱耐久性が悪化したり、塞がれた部分の平板や波板が無駄になるという問題も生じない。
【0006】
【発明の実施の形態】
以上説明した本発明の構成・作用を一層明らかにするために、以下本発明の表面燃焼バーナの好適な一実施形態について図1〜図4を用いて説明する。
【0007】
図1は、表面燃焼バーナ1(以下、単にバーナ1と略称する)の概略的斜視図であり、図2は、上面図であり、図3は、図1,2中の一点鎖線A−Aでの断面図である。また、図4はバーナユニット2の概略的斜視図である。
バーナ1は、平板3と波板4と枠体5とから構成されるバーナユニット2を、燃料ガスと一次空気とを混合する混合気室14を備えた本体ケース6内に複数並設して一体に設けられる。尚、図1中においては、本体ケース6及び混合気室14は省略してある。
【0008】
バーナユニット2は、枠体5内に複数の平板3と波板4とを交互に積層することで、平板3と波板4との間に多数の炎孔7を形成したものである。多数の炎孔7は連なって、バーナユニット2毎に炎孔部8を形成する。尚、図1及び図4では、枠体5の一側面が省略してあるが、実際には、枠体5はバーナユニット2の四方を囲むものである。
枠体5は、平板3及び波板4と平行な面を長手方向とし、この長手方向の両側面は、その下方が外側に突出成形され、垂直な上側面9、傾斜した中側面10、垂直な下側面11の三面から形成されるものである。
尚、本実施形態のバーナユニット2では、交互に並べられた平板3と波板4との両外側、すなわち枠体5の内側面と接するのは平板3となるように形成されているが、別にこれに限ったものではなく、波板4が枠体5の内側面と接するように形成してもかまわない。
【0009】
そして、バーナユニット2同士が、その下側面11を重ね合わされスポット溶接されて複数個連結される。すなわち、下側面11が枠体5を重ね合わせる当接面となる。この複数個連結したバーナユニット2が本体ケース6内に嵌着される。
このようにバーナユニット2を並設することにより、バーナユニット2間、詳しくは、バーナユニット2の上側面9間に空間が生じる。つまり、保炎板部材のような別部材を用いることなく炎孔部8間に混合ガスの流れない無炎孔部12を設けることができる。
【0010】
また、本体ケース6の下方には、燃料ガスと一次空気とを混合する混合気室14が設けられる。混合気室14の一側面には、複数の燃料ガス吸入口15が横一列で開口され、この燃料ガス吸入口15の近傍の底面には、長方形の一次空気吸入口16が開口される。そして、燃料ガス吸入口15には、それぞれノズル17が取り付けられる。
また、混合気室14内には、各バーナユニット2に混合ガスを均一に分布するように多数の小穴18が備えられた分布板19が混合気室14を上下に分割するようにして設けられる。
【0011】
上述した表面燃焼バーナ1によれば、ノズル17から噴出される燃料ガスと図示しない給気ファンによって送気され一次空気吸入口16を介して供給される一次空気とは、混合気室14内で混合され、分布板19に備えられた多数の小穴18を通って各バーナユニット2全体に均一に供給される。そして、燃料ガスと一次空気との混合ガスは、炎孔7から噴出して表面燃焼する。尚、この表面燃焼バーナ1は、燃焼に必要な空気が全て一次空気として取り込まれる全一次空気式バーナである。
【0012】
各バーナユニット2毎の炎孔部8は、無炎孔部12によって区画されているので、炎孔部8ごとに分割された複数の細長い火炎Fの列が形成される。すなわち、バーナ1全面にわたって一つの大きな火炎が形成されるのではなく、炎孔部8ごとの火炎に区画することができるので保炎性能が向上する。
しかも、従来のように保炎板部材を用いて炎孔7を塞ぐことにより、火炎を区画しているわけではないので、無駄な平板3や波板4が生じず経済的である。さらに、保炎板部材が高温に加熱されることによるバーナ1の熱耐久性の悪化も生じない。
【0013】
また、バーナ1は、バーナユニット2を複数作製してそれらを並設するだけで作ることができるので取り扱いが楽で組立が容易である。しかも、一種類のバーナユニット2を用意しておけば、その連結する数を調節するだけで異なる能力のバーナを製造することができるので、異なる能力ごとにバーナを作り分ける場合と比べてコスト的に非常に有利なものとなる。
【0014】
以上本発明の実施形態について説明したが、本発明はこうした実施形態に何等限定されるものではなく、本発明の要旨を逸脱しない範囲において、種々なる態様で実施し得ることは勿論である。
例えば、本実施形態では、スポット溶接により、バーナユニット2同士を連結しているが、カシメなどの他の方法で連結しても構わない。
【0015】
【発明の効果】
以上詳述したように、本発明の請求項1記載の表面燃焼バーナによれば、バーナユニットを並設するだけで、火炎を炎孔部を一つの単位とした複数の火炎に区画でき、保炎性能を向上させることができる。従って、従来のように火炎を区画するために保炎板部材によって炎孔を塞ぐ必要がないため、保炎板部材が高温に熱せられて熱耐久性が悪化したり、塞がれた部分の平板や波板が無駄になるという問題も生じない。
また、表面燃焼バーナは、バーナユニットを複数作製してそれらを並設するだけで作ることができるので取り扱いが楽で組立が容易である。しかも、連結するバーナユニットの数を調節するだけで、異なる能力の表面燃焼バーナを作製できるので、製造コストを低減することができる。
【図面の簡単な説明】
【図1】本実施形態としての表面燃焼バーナの概略的斜視図である。
【図2】本実施形態としての表面燃焼バーナの上面図である。
【図3】本実施形態としての表面燃焼バーナの断面図である。
【図4】本実施形態としてのバーナユニットの概略的斜視図である。
【図5】従来例としての表面燃焼バーナの概略的斜視図である。
【符号の説明】
1…表面燃焼バーナ、2…バーナユニット、3…平板、4…波板、5…枠体、7…炎孔、8…炎孔部、11…下側面、12…無炎口部。
[0001]
BACKGROUND OF THE INVENTION
In the present invention, a plurality of flat plates and corrugated plates are alternately laminated to form a flame hole forming surface having a large number of flame holes between the flat plates and the corrugated plate. The present invention relates to a surface burning burner for surface burning.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, there is known a surface combustion burner in which a plurality of flat plates and corrugated plates are alternately stacked and a large number of flame holes are formed between the flat plates and the corrugated plates and burned near the surface of the flame holes.
As an example of improving the flame holding performance of this type of surface combustion burner, for example, in Japanese Patent Publication No. 6-21684, as shown in FIG. There has already been proposed a structure in which a flame holding plate member 13 is sandwiched between the flame holes 7 to divide the flame and a plurality of flameless holes 112 are provided between the flames.
[0003]
[Problems to be solved by the invention]
However, the surface combustion burner 101 as described above has a problem that the heat durability deteriorates because the flame holding plate member 13 is directly heated by the adjacent flame and becomes high temperature. In addition, there is a problem that the flat plate 3 and the corrugated plate 4 that form the portion of the flame hole 7 closed by the flame holding plate member 13 are wasted.
The surface combustion burner of the present invention aims to provide a surface combustion burner that solves the above-described problems and does not make useless flat plates and corrugated plates and does not deteriorate thermal durability even if flame holding performance is improved. To do.
[0004]
[Means for Solving the Problems]
The surface combustion burner according to claim 1 of the present invention for solving the above-mentioned problems is
By alternately laminating a plurality of flat plates and corrugated plates, a flame hole forming surface having a plurality of flame holes is formed between the flat plates and the corrugated plates, and a gas flow of fuel gas is formed on the flame hole forming surface. The gas mixture is circulated from the upstream side of the gas flow toward the flame hole forming surface, and a mixed gas of all air and fuel gas necessary for combustion is circulated, and the entire surface is combusted on the flame hole forming surface. In a primary surface combustion burner,
Laminating a plurality of burner units each having a laminated portion in which a plurality of flat plates and corrugated plates are alternately laminated, and a frame body that supports the shape of the laminated portion from the outside. By means of a surface combustion type burner that divides the flame hole forming surface into flame hole portions for each burner unit ,
The frame that is overlapped when the burner units are arranged side by side is formed so that the downstream side with respect to the flow of combustion gas is along the laminated portion, the upstream side protrudes outward, and faces the laminated portion with a predetermined interval. Is a bent plate-shaped frame formed in
The entire projecting portion of the frame is overlapped and brought into contact with each other, and a plurality of burner units are juxtaposed to block the adjacent burner units on the upstream side of the flame hole forming surface. The gist is that a flame-free mouth is formed.
[0005]
In the surface combustion burner according to the first aspect of the present invention having the above-described configuration, the burner units are connected to each other by forming the frame of the burner unit so as to protrude outwardly and superimposing them. A space serving as a flame hole is formed. That is, the flame that is surface-combusted in the flame hole portion is not continuous over the entire flame hole forming surface as one large flame, but is divided into a plurality of flames with the flame hole portion as one unit, so that the flame holding performance is improved. Moreover, since the flame hole forming surface is not closed with the flame holding plate member as in the prior art, the flame holding plate member is heated to a high temperature to deteriorate the thermal durability, There is no problem that the corrugated sheet is wasted.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
In order to further clarify the configuration and operation of the present invention described above, a preferred embodiment of the surface combustion burner of the present invention will be described below with reference to FIGS.
[0007]
1 is a schematic perspective view of a surface combustion burner 1 (hereinafter, simply referred to as burner 1), FIG. 2 is a top view, and FIG. 3 is an alternate long and short dash line AA in FIGS. FIG. FIG. 4 is a schematic perspective view of the burner unit 2.
The burner 1 includes a plurality of burner units 2 composed of a flat plate 3, a corrugated plate 4, and a frame 5 in a body case 6 having an air-fuel mixture chamber 14 for mixing fuel gas and primary air. Provided integrally. In FIG. 1, the main body case 6 and the gas mixture chamber 14 are omitted.
[0008]
In the burner unit 2, a plurality of flame holes 7 are formed between the flat plate 3 and the corrugated plate 4 by alternately laminating a plurality of flat plates 3 and corrugated plates 4 in the frame 5. A large number of flame holes 7 are connected to form a flame hole portion 8 for each burner unit 2. In FIG. 1 and FIG. 4, one side surface of the frame body 5 is omitted, but actually the frame body 5 surrounds the four sides of the burner unit 2.
The frame 5 has a plane parallel to the flat plate 3 and the corrugated plate 4 as a longitudinal direction, and both side surfaces of the longitudinal direction are formed so that the lower side protrudes outward, a vertical upper side surface 9, an inclined middle side surface 10, a vertical direction. The lower surface 11 is formed from three surfaces.
In the burner unit 2 of the present embodiment, the flat plate 3 and the corrugated plate 4 arranged alternately are formed so that the outer side of the corrugated plate 4, that is, the inner surface of the frame 5 is in contact with the flat plate 3. The present invention is not limited to this, and the corrugated plate 4 may be formed so as to be in contact with the inner surface of the frame 5.
[0009]
Then, a plurality of burner units 2 are overlapped with each other and spot welded to be connected. That is, the lower surface 11 is a contact surface on which the frame body 5 is overlapped. The plurality of burner units 2 connected to each other are fitted into the main body case 6.
Thus, by arranging the burner units 2 side by side, a space is created between the burner units 2, specifically, between the upper side surfaces 9 of the burner units 2. That is, the flameless hole 12 where the mixed gas does not flow can be provided between the flame holes 8 without using another member such as a flame holding plate member.
[0010]
Further, an air-fuel mixture chamber 14 for mixing fuel gas and primary air is provided below the main body case 6. A plurality of fuel gas inlets 15 are opened in a horizontal row on one side of the gas mixture chamber 14, and a rectangular primary air inlet 16 is opened on the bottom surface near the fuel gas inlet 15. A nozzle 17 is attached to each fuel gas inlet 15.
In addition, a distribution plate 19 provided with a large number of small holes 18 is provided in the air-fuel mixture chamber 14 so as to divide the air-fuel mixture chamber vertically so that the gas mixture is uniformly distributed to each burner unit 2. .
[0011]
According to the above-described surface combustion burner 1, the fuel gas ejected from the nozzle 17 and the primary air supplied by the air supply fan (not shown) and supplied through the primary air intake port 16 are mixed in the gas mixture chamber 14. It is mixed and supplied uniformly to each burner unit 2 through a large number of small holes 18 provided in the distribution plate 19. And the mixed gas of fuel gas and primary air is ejected from the flame hole 7 and surface-combusted. The surface combustion burner 1 is an all primary air burner in which all air necessary for combustion is taken in as primary air.
[0012]
Since the flame hole portion 8 for each burner unit 2 is partitioned by the flameless hole portion 12, a plurality of elongated flame F rows divided for each flame hole portion 8 are formed. That is, one large flame is not formed over the entire surface of the burner 1, but can be divided into flames for each flame hole portion 8, so that the flame holding performance is improved.
Moreover, since the flame is not divided by closing the flame hole 7 using a flame holding plate member as in the prior art, useless flat plates 3 and corrugated plates 4 do not occur, which is economical. Further, the heat durability of the burner 1 is not deteriorated due to the flame holding plate member being heated to a high temperature.
[0013]
Further, since the burner 1 can be produced simply by producing a plurality of burner units 2 and arranging them in parallel, it is easy to handle and easy to assemble. Moreover, if one type of burner unit 2 is prepared, burners with different capacities can be produced simply by adjusting the number of units to be connected. Very advantageous.
[0014]
Although the embodiment of the present invention has been described above, the present invention is not limited to such an embodiment, and it is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention.
For example, in the present embodiment, the burner units 2 are connected by spot welding, but may be connected by other methods such as caulking.
[0015]
【The invention's effect】
As described above in detail, according to the surface combustion burner according to the first aspect of the present invention, the flame can be divided into a plurality of flames with the flame hole portion as one unit by simply arranging the burner units in parallel. Flame performance can be improved. Therefore, it is not necessary to block the flame hole with the flame holding plate member in order to partition the flame as in the prior art, so the flame holding plate member is heated to a high temperature and the thermal durability is deteriorated or There is no problem that a flat plate or a corrugated plate is wasted.
Further, since the surface combustion burner can be produced simply by producing a plurality of burner units and arranging them in parallel, it is easy to handle and easy to assemble. In addition, since the surface combustion burners having different capacities can be produced simply by adjusting the number of burner units to be connected, the manufacturing cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view of a surface combustion burner as an embodiment of the present invention.
FIG. 2 is a top view of a surface combustion burner according to the present embodiment.
FIG. 3 is a cross-sectional view of a surface combustion burner according to the present embodiment.
FIG. 4 is a schematic perspective view of a burner unit according to the present embodiment.
FIG. 5 is a schematic perspective view of a conventional surface combustion burner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Surface combustion burner, 2 ... Burner unit, 3 ... Flat plate, 4 ... Corrugated plate, 5 ... Frame, 7 ... Flame hole, 8 ... Flame hole part, 11 ... Lower side surface, 12 ... Flameless mouth part

Claims (1)

複数の平板と波板とを交互に積層することにより、該平板と該波板との間に複数の炎孔を有する炎孔形成面を形成し、該炎孔形成面を燃料ガスのガス流れに対する下流側に配して、該ガス流れに対する上流側から炎孔形成面に向けて燃焼に必要な全空気と燃料ガスとの混合ガスを流通させ、該炎孔形成面にて表面燃焼させる全一次式の表面燃焼バーナにおいて、
複数の平板と波板とを交互に積層した積層部と、この積層部を外側から保形支持する枠体を備えた複数のバーナユニットを、該枠体同士を重ね合わせて並設することにより、上記炎孔形成面を上記バーナユニット毎の炎孔部に分割する表面燃焼式バーナであって、
バーナユニットが並設された際に重ね合わされる前記枠体は、燃焼ガス流れに対する下流側が前記積層部に沿うように形成され、上流側が外側へ突出しかつ積層部と所定間隔を隔てて対向するように形成される屈曲板状の枠体であり、
当該枠体の突出形成した部分全体を重ね合わせて互いに当接させ、複数のバーナユニットを並設することにより、隣接するバーナユニット間を炎孔形成面の上流側で閉塞し上記炎孔部間に無炎口部を形成したことを特徴とする表面燃焼バーナ。
By alternately laminating a plurality of flat plates and corrugated plates, a flame hole forming surface having a plurality of flame holes is formed between the flat plates and the corrugated plates, and a gas flow of fuel gas is formed on the flame hole forming surface. The gas mixture is circulated from the upstream side of the gas flow toward the flame hole forming surface, and a mixed gas of all air and fuel gas necessary for combustion is circulated, and the entire surface is combusted on the flame hole forming surface. In a primary surface combustion burner,
Laminating a plurality of burner units each having a laminated portion in which a plurality of flat plates and corrugated plates are alternately laminated, and a frame body that supports the shape of the laminated portion from the outside. By means of a surface combustion type burner that divides the flame hole forming surface into flame hole portions for each burner unit ,
The frame that is overlapped when the burner units are arranged side by side is formed so that the downstream side with respect to the flow of combustion gas is along the laminated portion, the upstream side protrudes outward, and faces the laminated portion with a predetermined interval. Is a bent plate-shaped frame formed in
The entire projecting portion of the frame is overlapped and brought into contact with each other, and a plurality of burner units are juxtaposed to block the adjacent burner units on the upstream side of the flame hole forming surface. A surface combustion burner characterized in that a flameless opening is formed on the surface.
JP2001225996A 2001-07-26 2001-07-26 Surface burning burner Expired - Lifetime JP4725829B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001225996A JP4725829B2 (en) 2001-07-26 2001-07-26 Surface burning burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001225996A JP4725829B2 (en) 2001-07-26 2001-07-26 Surface burning burner

Publications (2)

Publication Number Publication Date
JP2003042414A JP2003042414A (en) 2003-02-13
JP4725829B2 true JP4725829B2 (en) 2011-07-13

Family

ID=19058895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001225996A Expired - Lifetime JP4725829B2 (en) 2001-07-26 2001-07-26 Surface burning burner

Country Status (1)

Country Link
JP (1) JP4725829B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100778716B1 (en) * 2006-07-07 2007-11-22 주식회사 경동나비엔 Flame hole structure of gas burner
CN110107900B (en) * 2019-05-25 2023-10-27 杨锡奇 Gas mixing burner

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0621684B2 (en) * 1989-11-17 1994-03-23 三浦工業株式会社 Surface burning burner
JPH06249416A (en) * 1993-02-26 1994-09-06 Noritz Corp Combustion equipment
JPH07310905A (en) * 1994-05-16 1995-11-28 Noritz Corp Combustion device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2508919B2 (en) * 1991-09-30 1996-06-19 三浦工業株式会社 Premixed combustion burner
JPH0742915A (en) * 1993-06-30 1995-02-10 Noritz Corp Combustion device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0621684B2 (en) * 1989-11-17 1994-03-23 三浦工業株式会社 Surface burning burner
JPH06249416A (en) * 1993-02-26 1994-09-06 Noritz Corp Combustion equipment
JPH07310905A (en) * 1994-05-16 1995-11-28 Noritz Corp Combustion device

Also Published As

Publication number Publication date
JP2003042414A (en) 2003-02-13

Similar Documents

Publication Publication Date Title
JP5566305B2 (en) Open loop gas burner
US20050161036A1 (en) One shot heat exchanger burner
JP6563714B2 (en) Combustion device
JP4754414B2 (en) Combustion device
JP4725829B2 (en) Surface burning burner
JP4729967B2 (en) Gas burning burner
JP2587093Y2 (en) Combustion equipment
JP4586187B2 (en) Gas burner
JP3558461B2 (en) Combustion equipment
JP3871954B2 (en) Infrared stove with fan
JP3534602B2 (en) Concentration combustion device
JP6049561B2 (en) Combustion plate
JP3651531B2 (en) Gas burner
JP2004271064A (en) Bunsen gas burner for gas water heater
JP4176285B2 (en) Stove burner
JPH0252910A (en) Hot water supply appliance
JP3886259B2 (en) Gas burner
JP3210821B2 (en) Burner
JPH1047614A (en) Combustor
JP4086435B2 (en) Combustion device
JP3146074B2 (en) Concentration combustion device
JPH06117610A (en) Thick and thin fuel combustion
JP2504087Y2 (en) Manifold structure of water heater
JP2756062B2 (en) Light-burn combustion burner
JPH08200628A (en) Burner

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20080703

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090617

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20101209

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101221

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110216

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110315

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110331

R150 Certificate of patent or registration of utility model

Ref document number: 4725829

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140422

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term