JPH04129610U - Variable spray amount oil burner - Google Patents
Variable spray amount oil burnerInfo
- Publication number
- JPH04129610U JPH04129610U JP4554491U JP4554491U JPH04129610U JP H04129610 U JPH04129610 U JP H04129610U JP 4554491 U JP4554491 U JP 4554491U JP 4554491 U JP4554491 U JP 4554491U JP H04129610 U JPH04129610 U JP H04129610U
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- oil
- amount
- pressure pump
- pressure
- pump
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Links
- 239000007921 spray Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
(57)【要約】
家庭用の給湯機，給湯機付風呂釜等に使用する噴霧量
可変式石油バーナーに於いて、油タンクより油を吸入し
加圧圧送する第１の電磁式ポンプを吐出量可変形の電磁
式ポンプにし、油の噴霧量の調整を簡単に行えるように
した。
【目的】 低価格で、かつ高度な加工精度を必要としな
い簡易な油経路の噴霧量可変石油バーナーを提供しよう
とすものである。
【構成】 吐出量可変の電磁式低圧ポンプ１と、高圧定
差圧式の電磁式ポンプ２と、内部に油往路８と油戻路９
を有し、その先端に戻り形ノズル４を接続したノズルホ
ルダー３と、各々を連結する油送管６と、ノズルホルダ
ー３の油戻路９からの油戻管７を、吐出量可変の電磁式
低圧ポンプ１と高圧定差圧式の電磁式ポンプ２の間の油
送管６に連結した。
(57) [Summary] In a variable spray amount oil burner used for domestic water heaters, bathtubs with water heaters, etc., the first electromagnetic pump sucks oil from the oil tank and pumps it under pressure. A variable-volume electromagnetic pump is used to easily adjust the amount of oil sprayed. [Purpose] The purpose is to provide a variable spray amount oil burner with a simple oil path that is inexpensive and does not require high processing precision. [Configuration] An electromagnetic low pressure pump 1 with variable discharge volume, a high pressure constant differential pressure electromagnetic pump 2, and an oil outgoing path 8 and an oil return path 9 inside.
A nozzle holder 3 with a return type nozzle 4 connected to its tip, an oil feed pipe 6 connecting each, and an oil return pipe 7 from an oil return path 9 of the nozzle holder 3 are connected to an electromagnetic pipe with a variable discharge amount. It was connected to an oil feed pipe 6 between a low-pressure pump 1 and a high-pressure constant differential pressure electromagnetic pump 2.
Description
【０００１】0001
この考案は、家庭用の給湯機，給湯機付風呂釜等に使用する噴霧量可変石油バ ーナーに関する。 This idea is based on a variable spray amount oil bath used in household water heaters, bathtubs with water heaters, etc. - Concerning ner.
【０００２】0002
この考案に技術的に最も近い従来例としては、例えば、日刊工業新聞社発行の 燃焼機器工学の第１９７ページの第６・２３図に記載したものがある。この方法 では、戻り形のノズルと低圧ポンプと高圧定差圧ポンプを有し、噴霧量の調整は 低圧ポンプ出口に設けた燃料流量調節弁によって定差圧ポンプ入口の圧力、すな わちバーナーの戻り燃料圧力を変えて制御し、燃料流量調節弁の通過油量と噴霧 量が等しくなるような構成になっている。 The most technically similar conventional example to this idea is, for example, the one published by Nikkan Kogyo Shimbun. There is one described in Figures 6 and 23 on page 197 of Combustion Equipment Engineering. this method It has a return type nozzle, a low pressure pump, and a high pressure constant differential pressure pump, and the spray amount can be adjusted. The pressure at the constant differential pressure pump inlet is controlled by the fuel flow control valve installed at the low pressure pump outlet. In other words, the return fuel pressure of the burner is changed and controlled, and the amount of oil passing through the fuel flow control valve and the spray are controlled. The structure is such that the quantities are equal.
【０００３】0003
しかしながら、このような従来例にあっては、戻り形ノズルよりの噴霧量の調 整は、低圧ポンプと高圧定差圧ポンプとの間に設けた燃料流量調節弁（以下流量 調節弁という）により行い、また流量調節弁の調節によって低圧ポンプ出口側の 圧力が変動するのを防止するために、低圧ポンプ出口側より入口側に連なる油経 路途中に圧力調節弁を設け、これにより一定圧力に維持するという構造となって いたため、本考案人の考案の主目的である所の家庭用の給湯機等のノズルよりの 噴霧量の小なるバーナーに使用する場合、流量調節弁の流量精度としては、非常 に高精度の物が要求されるとともに、バーナー等が非常に高価格になる事が予想 された。 However, in such conventional examples, it is difficult to adjust the amount of spray from the return type nozzle. The fuel flow control valve (hereinafter referred to as flow rate) is installed between the low pressure pump and the high pressure constant differential pressure pump. control valve), and the low pressure pump outlet side is controlled by adjusting the flow rate control valve. In order to prevent pressure fluctuations, the oil line running from the low-pressure pump outlet side to the inlet side is A pressure control valve is installed along the route to maintain a constant pressure. Therefore, the main purpose of the inventor's invention was to reduce the When used with a burner with a small spray amount, the flow rate accuracy of the flow control valve is extremely low. In addition to requiring high-precision products, burners, etc. are expected to become extremely expensive. It was done.
【０００４】 例えば、家庭用の給湯機のバーナーを考えると、戻り形ノズルよりの油の噴霧 量は、一般的に１l〜５l／時くらいが要求される。この時の流量調節弁前後の圧 力関係及び流量関係は例えば次のような関係となる。図２において、戻り形ノズ ルよりの油の噴霧量を１l〜５l／時として考えると、戻り形ノズルのガロン数を １．３５ガロンとし、高圧定差圧ポンプの初期設定圧を７kg／cm2とした場合、 高圧定差圧ポンプ入口の圧力（p2）は、最大で約５kg／cm2、最小で約０．５kg ／cm2となる。これにより低圧ポンプ出口の設定圧力（p1）は５kg／cm2より上と しなければならず、６kg／cm2とすると流量調節弁前後の圧力・流量関係は次の ようになる。For example, considering a burner for a domestic water heater, the amount of oil sprayed from a return nozzle is generally required to be about 1 liter to 5 liters/hour. At this time, the pressure relationship and flow rate relationship before and after the flow control valve are, for example, as follows. In Fig. 2, assuming that the amount of oil sprayed from the return type nozzle is 1l to 5l/hour, the number of gallons of the return type nozzle is 1.35 gallons, and the initial setting pressure of the high pressure constant differential pressure pump is 7kg/ cm2. In this case, the pressure (p 2 ) at the inlet of the high-pressure constant differential pressure pump will be approximately 5 kg/cm 2 at maximum and approximately 0.5 kg/cm 2 at minimum. As a result, the set pressure (p 1 ) at the outlet of the low-pressure pump must be higher than 5 kg/cm 2 , and if it is 6 kg/cm 2 , the pressure/flow rate relationship before and after the flow rate control valve is as follows.
【０００５】 p2が０．５kg／cm2の時p1は６kg／cm2であり、このときの流量調節弁の通過油 量は約１l／時となる。またp2が５kg／cm2の時p1は６kg／cm2であり、通過油量 は約５l／時となる。すなわち、流量調節弁前後の圧力差△ｐと流量Ｑとの関係 は、△p1＝６−０．５＝５．５kg／cm2でＱ1＝１l／時、△p2＝６−５＝１kg／c m2でＱ2＝５l／時となる。[0005] When p 2 is 0.5 kg/cm 2 , p 1 is 6 kg/cm 2 , and the amount of oil passing through the flow rate control valve at this time is about 1 liter/hour. Furthermore, when p 2 is 5 kg/cm 2 , p 1 is 6 kg/cm 2 and the amount of oil passing through is approximately 5 liters/hour. That is, the relationship between the pressure difference △p before and after the flow rate control valve and the flow rate Q is as follows: △p 1 = 6-0.5 = 5.5 kg/cm 2 , Q 1 = 1 l/hour, △p 2 = 6-5 = 1 kg/cm 2 and Q 2 = 5 l/hour.
【０００６】 この仕様を満足できる流量調節弁を、例えば図３に示すようなニードル弁で考 えた場合には、油の通過する断面積としては、△ｐ＝５．５kg／cm2，Ｑ＝１l／ 時の場合には約０．０３mm2、△ｐ＝１kg／cm2，Ｑ＝５l／時の場合には、約０ ．２mm2となる。ここでニードル弁口径を１mmとした場合、弁棒と弁口との隙間 は約１／１００mm〜７／１００mm（各々１l／時〜５l／時）で調整しなければな らない。[0006] When considering a flow rate regulating valve that can satisfy this specification, for example, as a needle valve as shown in FIG. 3, the cross-sectional area through which oil passes is Δp=5.5 kg/cm 2 , Q= In the case of 1 l/hour, it is about 0.03 mm 2 , Δp=1 kg/cm 2 , and in the case of Q=5 l/hour, it is about 0.03 mm 2 . It becomes 2mm 2 . Here, when the needle valve diameter is 1 mm, the gap between the valve stem and the valve opening must be adjusted to about 1/100 mm to 7/100 mm (1 l/hour to 5 l/hour, respectively).
【０００７】 必然的に、非常に高度な工作精度を要求され、また高度な調整を要するととも に、家庭用の給湯機のバーナー用として利用する場合には、バーナーの生産数量 も多く、流量調節弁の流量精度が出ない場合には、送風機よりの風量と戻り形ノ ズルよりの油量との関係を良好に保つためにはかなりの困難を有した。[0007] Inevitably, a very high degree of machining accuracy is required, and a high degree of adjustment is required. In addition, when used as a burner for a home water heater, the production quantity of the burner is If the flow rate accuracy of the flow control valve cannot be achieved, the air volume from the blower and the return type It was quite difficult to maintain a good relationship with the amount of oil coming out of the drain.
【０００８】[0008]
この考案は、このような従来の問題点に着目してなされたもので、油タンクよ りの油を吸入し、所定の油量を吐出する吐出量可変型の電磁式低圧ポンプと、低 圧ポンプより送られた油を吸入し、高圧に加圧する高圧定差圧型の電磁式ポンプ と、内部に油往路と、油戻路を有し、その先端に戻り形ノズルを接続したノズル ホルダーと、各々を連結する油送管と、ノズルホルダーの戻り路から低圧ポンプ と高圧ポンプの間の油送管に連結された油戻管とで構成し、戻り形ノズルよりの 油の噴霧量の調整を前記低圧ポンプの吐出量の調整で行うという構造とすること により、上記問題点を解決することを目的としている。 This idea was devised by focusing on these conventional problems. A variable output electromagnetic low pressure pump that sucks in oil and discharges a predetermined amount of oil; A high-pressure constant differential pressure electromagnetic pump that sucks oil sent from a pressure pump and pressurizes it to high pressure. A nozzle that has an oil outgoing path and an oil return path inside, and a return type nozzle connected to the tip of the oil outgoing path and oil return path. The holder, the oil feed pipe that connects each, and the low pressure pump from the return path of the nozzle holder. and an oil return pipe connected to the oil feed pipe between the high-pressure pump and the return type nozzle. The structure is such that the amount of oil sprayed is adjusted by adjusting the discharge amount of the low pressure pump. The aim is to solve the above problems.
【０００９】[0009]
以下、この考案の実施例を図面に基づいて説明する。図１は、この考案の一実 施例を示す図である。まず構成を説明すると、１は吐出量可変の電磁式低圧ポン プ（以下低圧ポンプという）であり、その油吸入側は油送管６−１を介して油タ ンク５に接続されている。低圧ポンプ１の油吐出側は油送管６−２を介して高圧 定差圧式の電磁式ポンプ２（以下高圧ポンプという）の油吸入側に接続されてい る。 Hereinafter, embodiments of this invention will be described based on the drawings. Figure 1 shows the fruit of this idea. It is a figure showing an example. First, to explain the configuration, 1 is an electromagnetic low pressure pump with variable discharge amount. (hereinafter referred to as a low-pressure pump), and its oil suction side is connected to an oil tank via an oil feed pipe 6-1. Connected to link 5. The oil discharge side of the low pressure pump 1 is supplied with high pressure via the oil feed pipe 6-2. It is connected to the oil suction side of the constant differential pressure electromagnetic pump 2 (hereinafter referred to as the high pressure pump). Ru.
【００１０】 高圧ポンプ２の油吐出側は油送管６−３を介して、内部に油送路８と油戻路９ を有したノズルホルダー３の油往路８側に接続されている。ノズルホルダー３の 先端には戻り形のノズル４が接続されている。ノズルホルダー３の油戻路９は油 戻管７を介して、低圧ポンプ１と高圧ポンプ２を接続する油送管６−２の途中に 接続されている。0010 The oil discharge side of the high pressure pump 2 has an oil feed path 8 and an oil return path 9 inside through an oil feed pipe 6-3. It is connected to the oil outgoing path 8 side of the nozzle holder 3 having a. Nozzle holder 3 A return type nozzle 4 is connected to the tip. The oil return path 9 of the nozzle holder 3 is filled with oil. In the middle of the oil feed pipe 6-2 that connects the low pressure pump 1 and the high pressure pump 2 via the return pipe 7 It is connected.
【００１１】[0011]
次に作用を説明する。低圧ポンプ１で油タンク５より吸入された油は、ここで 加圧され高圧ポンプ２に供給され、高圧ポンプ２で更にこの油を加圧し、ノズル ホルダー３の油往路８に供給される。ノズルホルダー３の油往路８に供給された 油は戻り形ノズル４に供給され、一部は噴霧され、残りの油はノズルホルダー３ 内の油戻路９及び油戻管７を通って、低圧ポンプ１と高圧ポンプ２を接続してい る油送管６−２の途中に戻される。安定時においては低圧ポンプ１よりの油の吐 出量は、戻り形ノズル４より噴霧される油の量に等しくなる。 Next, the effect will be explained. The oil sucked from the oil tank 5 by the low pressure pump 1 is pumped here. The oil is pressurized and supplied to the high-pressure pump 2, which further pressurizes the oil and sends it to the nozzle. The oil is supplied to the oil outgoing path 8 of the holder 3. The oil supplied to the outgoing path 8 of the nozzle holder 3 Oil is supplied to the return type nozzle 4, part of it is sprayed, and the remaining oil is sent to the nozzle holder 3. The low pressure pump 1 and the high pressure pump 2 are connected through the oil return path 9 and oil return pipe 7 inside. The oil is returned to the middle of the oil pipe 6-2. When stable, oil is discharged from low pressure pump 1. The output amount is equal to the amount of oil sprayed from the return type nozzle 4.
【００１２】 給湯機等の熱要求量が少なく戻り形ノズル４よりの噴霧量を少なくする場合に は、低圧ポンプ１の吐出量を少なくし、高圧ポンプ２の吸入側の圧力、すなわち 戻り形ノズル４の油戻部の圧力を低くすれば噴霧量は少なくなる。また噴霧量を 多くする場合には、低圧ポンプ１の吐出油量を多くし、高圧ポンプ２の吸入側の 圧力、すなわち戻り形ノズル４の油戻部の圧力を高くすれば噴霧量を多くする事 ができる。0012 When the amount of heat required by water heaters, etc. is low and the amount of spray from the return type nozzle 4 is to be reduced. reduces the discharge amount of the low pressure pump 1 and increases the pressure on the suction side of the high pressure pump 2, i.e. If the pressure at the oil return part of the return type nozzle 4 is lowered, the amount of spray will be reduced. Also, the amount of spray When increasing the amount of oil, increase the amount of oil discharged from low pressure pump 1, and increase the amount of oil discharged from low pressure pump 1. By increasing the pressure, that is, the pressure of the oil return part of the return type nozzle 4, the amount of spray can be increased. I can do it.
【００１３】 ここで家庭用の給湯機等に最も要求される噴霧量１〜５l／時を比例的に制御 する場合について説明する。戻り形ノズル４を１．３５ガロン、高圧ポンプ２の 初期設定圧を７kg／cm2、低圧ポンプ１の最低吐出量を１l／時、最大吐出量を５ l／時に設定した場合、本使用の戻り形ノズル４においては下記のような流量− 圧力関係となった。[0013]Here, a case will be explained in which the spray amount of 1 to 5 l/hour, which is most required for household water heaters, is controlled proportionally. When the return type nozzle 4 is set to 1.35 gallons, the initial pressure of the high pressure pump 2 is set to 7 kg/cm 2 , the minimum discharge rate of the low pressure pump 1 is set to 1 l/hour, and the maximum discharge rate is set to 5 l/hour. In the return type nozzle 4, the flow rate-pressure relationship was as shown below.
【００１４】 最低噴霧量時においては、低圧ポンプ１よりの吐出油量は１l／時となり、高 圧ポンプ２の吸入側の圧力は０．５kg／cm2となり、また高圧ポンプ２の吐出側 の圧力は７．５kg／cm2となり、戻り形ノズル４よりの噴霧油量は１l／時となっ た。また、最大噴霧量時においては、低圧ポンプ１よりの吐出油量は５l／時と なり、高圧ポンプ２の吸入側の圧力は５kg／cm2となり、また高圧ポンプ２の吐 出側の圧力は１２kg／cm2となり、戻り形ノズル４よりの噴霧油量は５l／時とな った。[0014] At the minimum spray amount, the amount of oil discharged from the low pressure pump 1 is 1 l/hour, the pressure on the suction side of the high pressure pump 2 is 0.5 kg/cm2, and the pressure on the discharge side of the high pressure pump 2 is 0.5 kg/ cm2 . was 7.5 kg/cm 2 , and the amount of oil sprayed from the return type nozzle 4 was 1 liter/hour. Furthermore, at the maximum spray amount, the amount of oil discharged from the low pressure pump 1 is 5 l/hour, the pressure on the suction side of the high pressure pump 2 is 5 kg/ cm2 , and the pressure on the discharge side of the high pressure pump 2 is 12 kg/cm2. cm 2 and the amount of oil sprayed from the return type nozzle 4 was 5 l/hour.
【００１５】 低圧ポンプ１の吐出油量の調整は、本実施例においては低圧ポンプ１の駆動電 気回路のデューティー制御で行った。すなわち本実施例における低圧ポンプ１は 電磁式のプランジャポンプであり、その駆動電源は所定周波数を持った矩形波で あり、この矩形波の１サイクルあたりの電圧印加時間を電気的に調整する事によ り、ポンプ内部のプランジャのストローク長を変化させ、これによってポンプよ りの油の吐出量を比例的に変化させたものである。[0015] In this embodiment, the amount of oil discharged from the low-pressure pump 1 is adjusted by controlling the drive voltage of the low-pressure pump 1. This was done by controlling the duty of the air circuit. That is, the low pressure pump 1 in this embodiment is It is an electromagnetic plunger pump, and its driving power is a square wave with a predetermined frequency. Yes, by electrically adjusting the voltage application time per cycle of this square wave. This changes the stroke length of the plunger inside the pump, thereby increasing the The amount of oil discharged is changed proportionally.
【００１６】[0016]
以上のように、この考案によれば、その構成を、油タンクよりの油を吸入し、 所定の油量を吐出する低圧ポンプと、低圧ポンプより送られた油を吸入し、高圧 に加圧する高圧ポンプと、内部に油往路と、油戻路を有し、その先端に戻り形ノ ズルを接続したノズルホルダーと、各々を連結する油送管と、ノズルホルダーの 戻り路から低圧ポンプと高圧ポンプの間の油送管に連結された油戻管とで構成し 、戻り形ノズルよりの油の噴霧量の調整を前記低圧ポンプの吐出量の調整で行う 構成としたため、従来例に示す流量調節弁のように高度な加工精度・調整精度を 有する部品が不要となり、簡易な油経路で、なおかつ低価格で噴霧量可変石油バ ーナーを供給できるという効果が得られる。 As described above, according to this invention, the structure is such that the oil is sucked from the oil tank, A low-pressure pump that discharges a predetermined amount of oil, and a high-pressure pump that sucks oil sent from the low-pressure pump. It has a high-pressure pump that pressurizes the oil, an oil outgoing path and an oil return path, and a return type nozzle at the tip. The nozzle holder that connects the nozzle, the oil pipe that connects each, and the nozzle holder. It consists of an oil return pipe connected from the return path to the oil feed pipe between the low pressure pump and the high pressure pump. The amount of oil sprayed from the return type nozzle is adjusted by adjusting the discharge amount of the low pressure pump. structure, it is possible to achieve high processing accuracy and adjustment accuracy like the flow control valve shown in the conventional example. It eliminates the need for parts, has a simple oil path, and can be used at a low price with a variable spray amount. This has the effect of being able to supply energy.
【００１７】[0017]
本実施例における油吐出量可変型の電磁式ポンプの吐出量制御は、ポンプの電 磁コイルに印加される電源のデューティー制御で示したが、本例以外にも周波数 制御，位相制御等の他の制御方法もあり、本例に限定するものではない。 The discharge amount control of the variable oil discharge amount electromagnetic pump in this example is This example shows the duty control of the power supply applied to the magnetic coil, but there are other ways to control the frequency as well. There are other control methods such as control and phase control, and the present invention is not limited to this example.
【図１】本考案の実施例を示す図である。FIG. 1 is a diagram showing an embodiment of the present invention.
【図２】従来例を示す図である。FIG. 2 is a diagram showing a conventional example.
【図３】従来例において噴霧量１l〜５l／時を提供する
場合のニードル弁概略寸法図である。FIG. 3 is a schematic dimensional diagram of a needle valve in the case of providing a spray amount of 1 l to 5 l/hour in a conventional example.
１ 吐出量可変の電磁式低圧ポンプ ２ 高圧定差圧式の電磁式ポンプ ３ ノズルホルダー ４ 戻り形ノズル ５ 油タンク ６ 油送管 ７ 油戻管 ８ 油往路 ９ 油戻路 １０ 油ストレーナー １１ 低圧ポンプ １２ 高圧定差圧ポンプ １３ 流量調節弁 １４ 圧力調節弁 １５ 弁棒 １６ 弁座 1 Electromagnetic low pressure pump with variable discharge volume 2 High pressure constant differential pressure electromagnetic pump 3 Nozzle holder 4 Return type nozzle 5 Oil tank 6 Oil pipe 7 Oil return pipe 8 Oil outward route 9 Oil return path 10 Oil strainer 11 Low pressure pump 12 High pressure constant differential pressure pump 13 Flow control valve 14 Pressure control valve 15 Valve stem 16 Valve seat
Claims (1)
１の電磁式ポンプと、前記加圧圧送された油を吸入し更
に加圧圧送する第２の電磁式ポンプと、第２の電磁式ポ
ンプより加圧圧送された油の一部を噴霧し、残りを油戻
管を通じて前記第２の電磁式ポンプの吸入側に戻す戻り
形ノズルとを有する噴霧量可変石油バーナーにおいて、
前記第１の電磁式ポンプを吐出量可変形の電磁式ポンプ
にしたことを特徴とする噴霧量可変石油バーナー。Claims: 1. A first electromagnetic pump that sucks oil from an oil tank and pumps it under pressure; a second electromagnetic pump that sucks the pressurized oil and pumps it under pressure; A variable spray amount oil burner having a return type nozzle that sprays a part of the oil pressurized and fed from the electromagnetic pump and returns the remainder to the suction side of the second electromagnetic pump through an oil return pipe,
A variable spray amount oil burner, characterized in that the first electromagnetic pump is a variable discharge amount electromagnetic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4554491U JPH04129610U (en) | 1991-05-20 | 1991-05-20 | Variable spray amount oil burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4554491U JPH04129610U (en) | 1991-05-20 | 1991-05-20 | Variable spray amount oil burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04129610U true JPH04129610U (en) | 1992-11-27 |
Family
ID=31925377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4554491U Pending JPH04129610U (en) | 1991-05-20 | 1991-05-20 | Variable spray amount oil burner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04129610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0798112A (en) * | 1993-09-28 | 1995-04-11 | Noritz Corp | Return type nozzle burner device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6213286A (en) * | 1985-07-10 | 1987-01-22 | Matsushita Electric Ind Co Ltd | Laser beam welding and fixing method |
-
1991
- 1991-05-20 JP JP4554491U patent/JPH04129610U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6213286A (en) * | 1985-07-10 | 1987-01-22 | Matsushita Electric Ind Co Ltd | Laser beam welding and fixing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0798112A (en) * | 1993-09-28 | 1995-04-11 | Noritz Corp | Return type nozzle burner device |
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