JPH037694Y2 - - Google Patents
Info
- Publication number
- JPH037694Y2 JPH037694Y2 JP1986032030U JP3203086U JPH037694Y2 JP H037694 Y2 JPH037694 Y2 JP H037694Y2 JP 1986032030 U JP1986032030 U JP 1986032030U JP 3203086 U JP3203086 U JP 3203086U JP H037694 Y2 JPH037694 Y2 JP H037694Y2
- Authority
- JP
- Japan
- Prior art keywords
- flame
- combustion
- air
- burner
- holes
- 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
Links
- 238000002485 combustion reaction Methods 0.000 claims description 72
- 238000007664 blowing Methods 0.000 claims description 15
- 238000009423 ventilation Methods 0.000 claims description 14
- 230000000694 effects Effects 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000002737 fuel gas Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Gas Burners (AREA)
- Air Supply (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、隣合う炎孔どうしの間に、燃焼用の
二次空気を前記炎孔の噴出向きで通過させる通気
路を形成したバーナの燃焼補助構造に関する。[Detailed description of the invention] [Industrial field of application] The present invention provides a burner in which a ventilation passage is formed between adjacent flame holes, through which secondary air for combustion passes in the direction of the jetting of the flame holes. Regarding combustion auxiliary structure.
従来、上記の如きバーナにおいては、一般的に
は、第８図に示すように、通気路１３を通過させ
た燃焼用二次空気は、通気路１３から炎孔１２の
噴出向きに単に吐出させるだけの構造となつてい
た。
Conventionally, in the above-mentioned burner, generally, as shown in FIG. It had a structure like this.
しかし、上記従来バーナでは、通気路１３から
燃焼用二次空気を吐出させはするものの、隣合う
炎孔１２夫々の形成炎に対する燃焼用二次空気の
混合効果が未だ低く、そのため、燃焼炎の長さが
延びる等の問題を生じ易く、燃焼性の面で未だ改
善の余地があつた。
However, in the conventional burner described above, although the secondary combustion air is discharged from the ventilation passage 13, the mixing effect of the secondary combustion air with respect to the flame formed in each of the adjacent flame holes 12 is still low, and therefore, the combustion flame is Problems such as lengthening were likely to occur, and there was still room for improvement in terms of flammability.
本考案の目的は、炎孔で形成される燃焼炎の特
性を考慮した合理的かつ簡単な改良により、改良
のためにかえつて他の面で燃焼性が低下するよう
な派生的問題の発生は回避しながら、炎孔の形成
炎に対する燃焼用二次空気の混合効果を高めて、
燃焼性の向上を図る点にある。 The purpose of this invention is to make a rational and simple improvement that takes into account the characteristics of the combustion flame formed in the flame hole, and to prevent the occurrence of derivative problems such as deterioration of combustibility in other aspects due to the improvement. While avoiding, increasing the mixing effect of secondary combustion air on the flame forming flame in the flame hole,
The aim is to improve combustibility.
本考案によるバーナの燃焼補助構造の特徴構成
は、隣合う炎孔どうしの間に、燃焼用二次空気を
前記炎孔の噴出向きで通過させる通気路を形成し
たバーナにおいて、前記通気路を通過した燃焼用
二次空気を分配して、隣合う前記炎孔夫々の形成
炎の側に変向案内する風当て部材を設け、前記風
当て部材による変向空気経路の延長線が、前記炎
孔の位置よりも炎孔噴出向きの下流側で前記炎孔
の形成炎と交差する状態に、前記風当て部材を配
置してあることにあり、その作用・効果は次の通
りである。
The characteristic structure of the combustion auxiliary structure of the burner according to the present invention is that in a burner in which an air passage is formed between adjacent flame holes, the secondary air for combustion is passed through the air passage in the jetting direction of the flame hole. A wind baffle member is provided to distribute and guide the secondary combustion air to the side of the flame formed in each of the adjacent flame holes, and an extension line of the direction change air path by the wind baffle member is provided in the flame hole. The wind blowing member is disposed in a state where it intersects the formed flame of the flame hole on the downstream side of the flame hole jetting direction than the position of , and its functions and effects are as follows.
つまり、上記特徴構成によれば（第１図または
第５図または第６図または第７図参照）、通気路
１３を通過した燃焼用の二次空気は、風当て部材
１５の分配作用および変更案内作用により、隣合
う炎孔１２夫々の形成炎中に積極的に供給され
る。
In other words, according to the above characteristic structure (see FIG. 1 or 5 or 6 or 7), the secondary air for combustion that has passed through the ventilation passage 13 is Due to the guiding action, it is actively supplied into the flame forming in each of the adjacent flame holes 12.
したがつて、通気路１３を通過した燃焼用二次
空気を、通気路１３から炎孔１２の噴出向きに単
に吐出させて、燃焼炎と平行の状態で流動させて
いた従来バーナ（第８図参照）に比べ、炎孔１２
夫々の形成炎（燃焼炎）に対する燃焼用二次空気
の混合性を効果的に向上できる。 Therefore, in a conventional burner (see Fig. 8), the secondary combustion air that has passed through the air passage 13 is simply discharged from the air passage 13 in the direction of the flame outlet 12, and is caused to flow parallel to the combustion flame. (see), flame hole 12
It is possible to effectively improve the mixing properties of secondary air for combustion with each forming flame (combustion flame).
また、炎孔での形成炎は、炎孔の位置、すなわ
ち、形成燃焼炎の根元部では燃焼が未だ不安定状
態にあるため、この根元部に風が外乱的に作用す
ると所謂リフト現象が容易に生じるという特性が
あり、このため、この燃焼炎特性を考慮せず、通
気路１３からの燃焼用二次空気を隣合う炎孔１２
夫々の燃焼炎側に変向案内しさえすれば、燃焼炎
と燃焼用二次空気との混合性向上を図り得るとす
る程度の改良では、変向案内された燃焼用二次空
気が燃焼炎の根元部に外乱的に吹き付けられてリ
フト現象を生じ易くしてしまうような事態を招く
可能性が高く、混合性向上を目的とした改良のた
めに、混合性の問題とは別の面でかえつて燃焼性
の低下を招いてしまうことも考えられる。 In addition, the combustion of the flame formed in the flame hole is still unstable at the position of the flame hole, that is, at the root of the formed combustion flame, so if wind acts as a disturbance on this root, the so-called lift phenomenon will easily occur. Therefore, without considering this combustion flame characteristic, the secondary combustion air from the ventilation passage 13 is directed to the adjacent flame hole 12.
In an improvement in which it is possible to improve the mixing properties of the combustion flame and the secondary combustion air by simply guiding the combustion flames toward the respective combustion flame sides, the secondary combustion air that has been guided by the combustion flames is directed toward the combustion flame. There is a high possibility that this will lead to a situation in which the root part is blown as a disturbance, making it easier to cause a lift phenomenon. It is conceivable that this may even lead to a decrease in flammability.
この点、本考案の特徴構成においては、風当て
部材１５による変向空気経路（参照図中、矢印の
屈曲で示す経路）の延長線が、炎孔１２の位置よ
りも炎孔噴出向きの下流側で炎孔１２の形成炎と
交差する状態に、風当て部材１５を配置するか
ら、風当て部材１５により変向案内した燃焼用二
次空気は、炎孔１２の位置よりも炎孔噴出向きの
下流側、すなわち、燃焼炎の根元部よりも炎先方
側で燃焼炎に供給され、これによつて、上記の如
きリフト現象の発生が効果的に回避される。 In this regard, in the characteristic configuration of the present invention, the extension line of the air path for changing direction by the wind blowing member 15 (the path indicated by the curved arrow in the reference figure) is downstream of the position of the flame hole 12 in the direction of the flame outlet. Since the wind blower member 15 is arranged in a state where it intersects with the flame formed in the flame hole 12 on the side, the secondary combustion air guided by the wind blower member 15 is directed toward the flame hole ejection direction than the position of the flame hole 12. The fuel is supplied to the combustion flame on the downstream side of the combustion flame, that is, on the flame front side of the combustion flame, thereby effectively avoiding the occurrence of the lift phenomenon as described above.
以上の結果、改良のためにリフト現象が生じ易
くなつて、かえつて燃焼性が低下するといつた派
生的問題の発生は回避しながら、燃焼炎に対する
燃焼用二次空気の混合効果を高めて、燃焼炎の長
さが延びる等の当初の問題を抑制防止できること
で、バーナの燃焼性を総合的に、かつ、確実に向
上し得るに至つた。
As a result of the above, it is possible to improve the mixing effect of the secondary air for combustion on the combustion flame, while avoiding the occurrence of secondary problems such as the lift phenomenon becoming more likely to occur due to the improvement and the combustibility decreasing. By suppressing and preventing the initial problems such as an increase in the length of the combustion flame, it has become possible to comprehensively and reliably improve the combustibility of the burner.
また、風当て部材を付設するだけの改良である
から、例えば、燃焼用二次空気を燃焼炎中に吹き
込むノズルを設ける等に比して改良が簡単であ
り、製作面およびコスト面においても有利であ
る。 In addition, since the improvement involves simply adding a wind blower, the improvement is simpler than, for example, installing a nozzle to blow secondary combustion air into the combustion flame, and is advantageous in terms of manufacturing and cost. It is.
次に本考案の実施例を説明する。 Next, an embodiment of the present invention will be described.
第４図はガス瞬間湯沸器を示し、給水路１に接
続したフインチユーブ型の水加熱用熱交換器２、
燃料ガス供給路３に接続したガスバーナ４、並び
に、給気フアンＦを外装ケーシング５に内装して
ある。 FIG. 4 shows a gas instantaneous water heater, with a Finch-Ube type water heating heat exchanger 2 connected to the water supply channel 1,
A gas burner 4 connected to a fuel gas supply path 3 and an air supply fan F are housed inside an exterior casing 5.
図中６は、ガスバーナ４に対する燃焼室７を形
成するとともに、熱交換器２に対する燃焼ガス通
風路を形成する筒状ケーシングであり、また、８
は、外装ケーシング５に形成した排気口である。 In the figure, 6 is a cylindrical casing that forms a combustion chamber 7 for the gas burner 4 and a combustion gas ventilation path for the heat exchanger 2.
is an exhaust port formed in the exterior casing 5.
９は給湯栓、１０はガス弁である。 9 is a hot water tap, and 10 is a gas valve.
ガスバーナ４の具体構造については、第１図な
いし第３に示すように、混合気流路ｆを内部に形
成するバーナユニツト１１の上端縁部に、混合気
流路ｆに連通する上向き小炎孔１２ａの多数を密
な状態でバーナユニツト長手方向に列状に並べて
列状炎孔１２を形成し、そのバーナユニツト１１
の複数を、夫々の列状炎孔１２を並列配置する状
態に並設してある。 Regarding the specific structure of the gas burner 4, as shown in FIGS. 1 to 3, a small upward flame hole 12a communicating with the mixture flow path f is provided at the upper end edge of the burner unit 11 that forms the mixture flow path f inside. A large number of burner units are densely arranged in a row in the longitudinal direction to form rows of flame holes 12, and the burner units 11
A plurality of flame holes 12 are arranged in parallel with each other in parallel.
つまり、給気フアンＦからの燃焼用二次空気を
ガスバーナ配設部を介して燃焼室７内に供給する
ための通気路１３を、上述の如きバーナユニツト
１１並設構成により隣合うバーナユニツト１１ど
うしの間から隣合う列状炎孔１２どうしの間にか
けて形成してある。 In other words, the ventilation passage 13 for supplying secondary combustion air from the air supply fan F into the combustion chamber 7 through the gas burner installation section is connected to the adjacent burner units 11 by the above-described arrangement of the burner units 11 side by side. It is formed between the rows of flame holes 12 and between the rows of flame holes 12 adjacent to each other.
バーナユニツト１１の夫々は、燃焼用一次空気
を吸入するためのエゼクタ構成１４を介して燃料
ガス供給路３に接続してあり、混合気流路ｆに対
する燃料ガス供給ノズル１４ａからの燃料ガス吹
き込み供給に伴い、燃焼用一次空気が混合気流路
ｆに吸入され、それら吹き込み燃料ガスと吸入燃
焼用一次空気の混合気が混合気流路ｆを介して列
状炎孔１２から上向きに噴出される。 Each of the burner units 11 is connected to the fuel gas supply path 3 via an ejector structure 14 for sucking primary air for combustion, and is connected to the fuel gas supply path 3 by blowing fuel gas from the fuel gas supply nozzle 14a to the mixture flow path f. Accordingly, primary air for combustion is sucked into the mixture flow path f, and a mixture of the blown fuel gas and the primary air for intake combustion is ejected upward from the row-shaped flame holes 12 through the mixture flow path f.
一方、上記通気路１３夫々の延長上に帯板状の
風当て部材１５を、通気路１３から上昇燃焼用二
次空気に対して対向させる水平姿勢で、かつ、バ
ーナユニツト１１長手方向のほぼ全巾（換言すれ
ば、列状炎孔１２の長手方向のほぼ全巾）にわた
らせる状態に配設し、その風当て部材１５に対し
て上昇燃焼用二次空気を衝突させることにより、
燃焼用二次空気を分配して、隣合う列状炎孔１２
夫々の形成炎の側に変向案内するようにしてあ
る。 On the other hand, the band-shaped wind blowing member 15 is placed on the extension of each of the ventilation passages 13 in a horizontal position to face the rising secondary combustion air from the ventilation passage 13, and almost the entire length of the burner unit 11 in the longitudinal direction. By arranging it so that it spans the width (in other words, almost the entire width in the longitudinal direction of the row-shaped flame holes 12) and causing the rising secondary air for combustion to collide with the wind blowing member 15,
Distributing secondary air for combustion to adjacent rows of flame holes 12
The direction is changed and guided to the side of each forming flame.
つまり、通気路１３を通過した燃焼用二次空気
に対する風当て部材１５の上記の如き分配作用お
よび変向案内作用により、燃焼用二次空気を隣合
う列状炎孔１２夫々の形成炎中に積極的に分配供
給して、燃焼炎に対する燃焼用二次空気の混合効
果を高め、それによつて、燃焼性を向上するよう
にしてある。 In other words, due to the above-described distribution and direction-changing effect of the wind blowing member 15 on the secondary combustion air that has passed through the ventilation path 13, the secondary combustion air is transferred into the flames formed in each of the adjacent rows of flame holes 12. The secondary combustion air is actively distributed to enhance the mixing effect of the secondary combustion air on the combustion flame, thereby improving combustibility.
また、上記風当て部材１５を配置するにあたつ
ては、上述の如く通気路１３の延長上（すなわ
ち、隣合う列状炎孔１２間よりも炎孔噴出向きの
下流側）水平姿勢に風当て部材１５を配置するこ
とにより、風当て部材１５による変向空気経路
（図中矢印の屈曲で示す経路）の延長線が、列状
炎孔１２の位置よりも炎孔噴出向きの下流側で隣
合う列状炎孔１２夫々の形成炎と交差する状態の
部材配置（すなわち、変向案内した燃焼用二次空
気を燃焼炎の根元部よりも炎先方側で燃焼炎に供
給する配置）としてあり、この配置により、未だ
燃焼が不安定な燃焼炎の根元部へ燃焼用二次空気
を吹き付けてしまうことを回避して、燃焼炎の根
元部への空気吹き付けにより生じるリフト現象の
発生を防止するようにしてある。 In addition, when arranging the wind blowing member 15, as described above, the wind blowing member 15 should be placed in a horizontal position on the extension of the ventilation passage 13 (that is, on the downstream side in the direction of the flame outlet from between the adjacent rows of flame holes 12). By arranging the backing member 15, the extension line of the deflection air path (the path indicated by the curved arrow in the figure) by the wind hitting member 15 is located downstream of the position of the row-shaped flame holes 12 in the direction of the flame outlet. As a member arrangement that intersects with the flames formed in each of the adjacent row flame holes 12 (i.e., an arrangement that supplies the directionally guided secondary combustion air to the combustion flame on the flame front side from the root of the combustion flame). This arrangement avoids blowing secondary air for combustion to the base of the combustion flame, where combustion is still unstable, and prevents the lift phenomenon caused by air blowing to the base of the combustion flame. It is designed to do so.
なお、上述の如く、リフト現象の発生を防止し
ながら、燃焼炎に対する燃焼用二次空気の混合効
果を高めて、燃焼性の総合的な改善を図ると、加
熱能力の割りに燃焼室７を小型化できるようにな
り、ひいては、湯沸器の全体構成をコンパクト化
できる。 As mentioned above, if we aim to improve the overall combustibility by increasing the mixing effect of the secondary combustion air on the combustion flame while preventing the occurrence of the lift phenomenon, the combustion chamber 7 will become smaller compared to the heating capacity. It becomes possible to downsize the water heater, and in turn, the overall configuration of the water heater can be made more compact.
また、燃焼用二次空気の混合効果が高いと、燃
焼用一次空気の必要量を少量化できて、列状炎孔
１２からの混合噴出量を少量化できることから、
燃焼騒音の低減をも図り得る。 In addition, if the mixing effect of the secondary combustion air is high, the amount of primary combustion air required can be reduced, and the amount of mixture ejected from the rows of flame holes 12 can be reduced.
It is also possible to reduce combustion noise.
さらに、前記風当て部材１５は、それらの並設
群全体としての燃焼室７に対する整風機能をも奏
することから、筒状ケーシング６内における燃焼
ガス流動を均一化できて、水加熱用熱交換器に対
する均一加熱性を向上でき、ひいては、湯沸器の
加熱効率を向上させて燃料ガス消費量を節減でき
る。 Furthermore, since the wind blowing members 15 also perform a wind regulating function for the combustion chamber 7 as a whole group of the wind blowing members 15, the flow of combustion gas in the cylindrical casing 6 can be made uniform, and the water heating heat exchanger It is possible to improve the uniform heating performance of the water heater, which in turn improves the heating efficiency of the water heater and reduces fuel gas consumption.
次に本考案の実施例を説明する。 Next, an embodiment of the present invention will be described.
風当て部材１５の具体的形状・構造は種々の改
良が可能であり、例えば、第５図に示すようなＶ
字状の断面形状や、第６図に示すような丸棒状に
形成したり、あるいは、第７図に示すように、隣
合う炎孔１２夫々の形成炎に対して、各別に作用
する通風ガイド板１５ａ，１５ｂの一対をももつ
て構成するようにしてもよい。 The specific shape and structure of the wind protection member 15 can be improved in various ways. For example, a V as shown in FIG.
A ventilation guide may be formed in a cross-sectional shape of a letter, or in a round bar shape as shown in FIG. 6, or may be formed in a cross-sectional shape as shown in FIG. It may also be constructed by having a pair of plates 15a and 15b.
列状炎孔１２の列形状が円弧状で、その複数が
同芯状に配置される型式のバーナの場合、風当て
部材１５も円弧状に形成して装備すればよい。 In the case of a type of burner in which the rows of flame holes 12 are arcuate and a plurality of the rows are arranged concentrically, the wind blowing member 15 may also be provided in an arcuate shape.
炎孔１２の具体的形成構造は、前述実施例の如
く小炎孔１２ａの多数を列状に並べて列状炎孔１
２を形成する形態とするに代えて、スリツト状の
炎孔１２としてもよく、また、角筒状や丸筒状の
炎孔１２としてもよく、炎孔１２の具体的形状・
構造は、種々の構成変向が可能である。 The concrete formation structure of the flame holes 12 is that a large number of small flame holes 12a are arranged in a row as in the above-mentioned embodiment.
2, the flame hole 12 may have a slit shape, or may have a rectangular or round tube shape, depending on the specific shape of the flame hole 12.
The structure is capable of various configuration variations.
本考案は、炎孔１２を上向きに開口させる型式
の他に、横向きや下向きに開口させる型式のバー
ナにも適用でき、また、燃焼用二次空気を自然通
風する型式や、燃焼用空気として燃焼用二次空気
のみを供給する型式のバーナにも適用できる。 The present invention can be applied to burners of types in which the flame hole 12 opens upward, sideways or downward, and can also be applied to types in which the secondary air for combustion is naturally ventilated or used as combustion air. It can also be applied to burners of the type that supply only secondary air.
本考案による燃焼補助構造を適用するバーナの
用途は不問である。 The use of the burner to which the combustion auxiliary structure according to the present invention is applied does not matter.
第１図ないし第４図は、本考案の実施例を示
し、第１図は要部の拡大断面図、第２図は平面
図、第３図は側面図、第４図は湯沸器の構成図で
ある。第５図ないし第７図は夫々、本考案の別実
施例を示す拡大断面図、第８図は従来例を示す拡
大断面図である。
１２……炎孔、１３……通気路、１５……風当
て部材。
Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being an enlarged sectional view of the main parts, Figure 2 being a plan view, Figure 3 being a side view, and Figure 4 being a water heater. FIG. 5 to 7 are enlarged sectional views showing another embodiment of the present invention, and FIG. 8 is an enlarged sectional view showing a conventional example. 12...flame hole, 13...ventilation path, 15...wind guard member.
Claims (1)
気を前記炎孔１２の噴出向きで通過させる通気
路１３を形成したバーナにおいて、前記通気路
１３を通過した燃焼用二次空気を分配して、隣
合う前記炎孔１２夫々の形成炎の側に変向案内
する風当て部材１５を設け、前記風当て部材１
５による変向空気経路の延長線が、前記炎孔１
２の位置よりも炎孔噴出向きの下流側で前記炎
孔１２の形成炎と交差する状態に、前記風当て
部材１５を配置してあるバーナの燃焼補助構
造。 ２ 前記炎孔１２が、炎孔並設方向と炎孔噴出方
向との夫々に対して直交する方向に延びる列状
に形成され、前記風当て部材１５が、前記炎孔
１２の列状延設方向において、前記炎孔１２の
形成巾のほぼ全巾にわたつて配置されている請
求項１記載のバーナの燃焼補助構造。[Claims for Utility Model Registration] 1. In a burner in which a ventilation passage 13 is formed between adjacent flame holes 12, through which secondary air for combustion passes in the direction of ejection of the flame hole 12, the combustion air passes through the ventilation passage 13. A wind baffle member 15 is provided which distributes the secondary combustion air and guides it to the side of the flame formed in each of the adjacent flame holes 12.
The extension line of the diverted air path by 5 is the flame hole 1.
A burner combustion auxiliary structure in which the wind blowing member 15 is arranged in a state where it intersects the flame formed in the flame hole 12 on the downstream side of the flame hole ejection direction from the position of No. 2. 2. The flame holes 12 are formed in a row extending in a direction perpendicular to each of the direction in which the flame holes are arranged and the direction in which the flame holes are ejected, and the wind blowing member 15 is configured to extend the flame holes 12 in a row. 2. The combustion auxiliary structure for a burner according to claim 1, wherein the structure is disposed over substantially the entire width of the flame hole 12 in the direction of the combustion direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986032030U JPH037694Y2 (en) | 1986-03-06 | 1986-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986032030U JPH037694Y2 (en) | 1986-03-06 | 1986-03-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62148827U JPS62148827U (en) | 1987-09-19 |
| JPH037694Y2 true JPH037694Y2 (en) | 1991-02-26 |
Family
ID=30838312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986032030U Expired JPH037694Y2 (en) | 1986-03-06 | 1986-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037694Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0318814Y2 (en) * | 1987-09-17 | 1991-04-22 | ||
| JPH0221116A (en) * | 1988-07-09 | 1990-01-24 | Rinnai Corp | Combustion noise reduction device |
-
1986
- 1986-03-06 JP JP1986032030U patent/JPH037694Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62148827U (en) | 1987-09-19 |
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