【０００１】[0001]
【産業上の利用分野】この発明はプレパージやポストパ
ージなどを行う送風機能の故障や劣化を診断して常に正
常に燃焼できるようにした燃焼制御装置に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion control device capable of always performing normal combustion by diagnosing a failure or deterioration of a blowing function for pre-purge and post-purge.
【０００２】[0002]
【従来の技術】図４は例えば特開平２−１４６４１２号
公報に示された従来の燃焼制御装置を示すブロック構成
図であり、図において、１は羽根車１ａと駆動モータ１
ｂとで構成される送風機で、この送風機１は掃気用空気
および燃焼用空気を供給する。２はバーナで、このバー
ナ２は比例制御弁３によって燃料量が調節される。４は
バーナ２によって加熱される熱交換器で、この熱交換器
４は水をお湯にして給湯するガス瞬間給湯機５を構成す
る。2. Description of the Related Art FIG. 4 is a block diagram showing a conventional combustion control device disclosed in, for example, Japanese Unexamined Patent Publication (Kokai) No. 2-146412, in which 1 is an impeller 1a and a drive motor 1.
The blower 1 is configured by b and the blower 1 supplies scavenging air and combustion air. Reference numeral 2 is a burner, and the burner 2 has its fuel amount adjusted by a proportional control valve 3. Reference numeral 4 denotes a heat exchanger heated by the burner 2, and this heat exchanger 4 constitutes a gas instant water heater 5 for turning water into hot water.
【０００３】６は熱交換器４の出湯温度を検出して設定
温度となるように比例制御弁３で燃料量を調節する燃料
制御部で、この燃料制御部６はガス瞬間給湯機５の運転
シーケンスを管理する。７は燃焼制御部６で設定される
バーナ２の燃料量に対応した燃焼用空気を供給すべく送
風機１の回転数検出部８の回転数信号をフィードバック
するための回転数制御部で、制御則としてはＰＩＤで構
成される。なお、回転数検出部８はホール素子やフォト
カプラなどで構成されている。９は送風機１を構成する
駆動モータ１ｂの駆動電流ｉｐを検出する電流検出部、
１０は上記回転数制御部７で制御される設定回転数時の
駆動モータ１ｂの駆動電流を設定する設定電流部で、送
風機１の負荷状態によって予め実験などで求めた値に設
定してある。１１は上記電流検出部９の電流値ｉｐと設
定電流値ｉｓとを比較する比較部、１２は比較部１１の
出力で制御される報知手段で、この報知手段１２は駆動
電流値ｉｐ≧設定電流値ｉｓの関係になったときに起動
される。報知手段１２はガス瞬間給油機５の本体もしく
はリモコンなどへ表示ランプやブザー音で報知する構成
とし、使用者が認識可能な手段であればよい。Reference numeral 6 is a fuel control unit which detects the temperature of hot water discharged from the heat exchanger 4 and adjusts the amount of fuel by the proportional control valve 3 so as to reach the set temperature. The fuel control unit 6 operates the instantaneous gas water heater 5. Manage sequences. Reference numeral 7 is a rotation speed control unit for feeding back the rotation speed signal of the rotation speed detection unit 8 of the blower 1 in order to supply combustion air corresponding to the fuel amount of the burner 2 set by the combustion control unit 6. Is composed of PID. The rotation speed detection unit 8 is composed of a hall element, a photo coupler, or the like. Reference numeral 9 denotes a current detection unit that detects the drive current ip of the drive motor 1b that constitutes the blower 1,
Reference numeral 10 denotes a set current unit that sets the drive current of the drive motor 1b at the set rotation speed controlled by the rotation speed control unit 7, and is set to a value previously obtained by an experiment or the like depending on the load state of the blower 1. Reference numeral 11 is a comparing section for comparing the current value ip of the current detecting section 9 with the set current value is, and 12 is an informing means controlled by the output of the comparing section 11. The informing means 12 is a drive current value ip ≧ setting current. It is activated when the relation of the value is. The notification means 12 is configured to notify the main body of the gas instantaneous refueling machine 5 or a remote controller with a display lamp or a buzzer sound, and may be any means that can be recognized by the user.
【０００４】次に動作について説明する。回転数制御部
７は燃料制御部６で設定されるバーナ２の燃料量に対応
した燃焼用空気を供給すべく送風機１に回転数検出部８
の回転数信号をフィードバックする。また、電流検出部
９は送風機１を構成する駆動モータ１ｂの駆動電流ｉｐ
を検出する。これらより燃焼装置は最大燃料量と最小燃
料量との間で回転数Ｎを制御しており、駆動電流値ｉｐ
は通常負荷特性上の値となる。すなわち、例えばある燃
料量Ｑｇａのときの駆動モータ１ｂの駆動電流ｉｐはｉ
ｐｏで、回転数ＮはＮｏとなっている。しかし、送風機
１の吸気詰まりや羽根車への異物付着などが発生する
と、異常負荷特性へ移動し、駆動電流値ｉｐはｉｐａへ
低下するが、回転数Ｎは回転数制御部７によってＮｏを
保つことになる。したがって、駆動モータ１ｂの電流を
検出して送風機１の動作状態を監視し、駆動電流ｉｐが
異常負荷電流値ｉｓに達した時点で警報を発し、図５に
示す風量Ｑに対する圧力Ｐおよび駆動電流ｉｐの送風特
性より、実線で示す通常時の負荷点Ｋｏの駆動電流ｉｐ
ｏは送風機１の給気詰まりなどにより破線で示す異常負
荷点Ｋａへ移動し、そのときの駆動電流ｉｐはｉｐａと
減少して送風構成の異常を知らせることができる。Next, the operation will be described. The rotation speed control unit 7 supplies the blower 1 with the rotation speed detection unit 8 to supply combustion air corresponding to the fuel amount of the burner 2 set by the fuel control unit 6.
The rotation speed signal of is fed back. In addition, the current detection unit 9 controls the drive current ip of the drive motor 1b included in the blower 1.
To detect. From these, the combustion device controls the rotation speed N between the maximum fuel amount and the minimum fuel amount, and the drive current value ip
Is usually a value on the load characteristics. That is, for example, the drive current ip of the drive motor 1b at a certain fuel amount Qga is i
At po, the rotation speed N is No. However, when the intake air of the blower 1 is clogged or foreign matter is attached to the impeller, the load characteristic moves to the abnormal load characteristic, and the drive current value ip decreases to ipa, but the rotation speed N is maintained at No by the rotation speed control unit 7. It will be. Therefore, the operating state of the blower 1 is monitored by detecting the current of the drive motor 1b, and an alarm is issued when the drive current ip reaches the abnormal load current value is, and the pressure P and the drive current with respect to the air volume Q shown in FIG. Based on the blowing characteristics of ip, the driving current ip at the load point Ko in the normal state shown by the solid line
o moves to an abnormal load point Ka shown by a broken line due to clogging of the air supply of the blower 1, and the drive current ip at that time decreases to ipa, so that an abnormality in the air blowing configuration can be notified.
【０００５】[0005]
【発明が解決しようとする課題】従来の燃焼制御装置は
以上のように構成されているので、送風機１の吸気部の
詰まりや排気部への異物の付着および送風機１の劣化や
故障に対し、回転数検出部８では実際の風量を計測する
ことができないため、風圧が発生していないにもかかわ
らず、なんらかの原因で送風機１が回転しているという
誤信号を発生する場合があった。また、風圧スイッチで
は風量のあるないの２値情報しか得られず、最近の燃焼
用風量範囲が厳しい範囲に限定される燃焼機において
は、正常に燃焼できる範囲に風量が達しているかどうか
の確認ができないという問題点があった。さらに電流検
出部９は風量自体を計測していないために突風などが発
生した場合には誤動作してしまうという問題点があっ
た。Since the conventional combustion control device is constructed as described above, it is possible to prevent clogging of the intake part of the blower 1, adhesion of foreign matter to the exhaust part and deterioration or failure of the blower 1. Since the rotation speed detection unit 8 cannot measure the actual air volume, there is a case where an erroneous signal that the blower 1 is rotating is generated for some reason even though the wind pressure is not generated. In addition, with the air pressure switch, only binary information indicating that there is no air volume can be obtained, and in recent combustors where the combustion air volume range is limited to a severe range, it is possible to check whether the air volume has reached the normal combustion range. There was a problem that I could not do it. Further, since the current detector 9 does not measure the air volume itself, there is a problem that it malfunctions when a gust of wind occurs.
【０００６】この発明は上記のような問題点を解消する
ためになされたもので、風量を直接計測し、送風機を制
御して正常に燃焼できる範囲に風量を制御するようにし
た燃焼制御装置を得ることを目的とする。The present invention has been made in order to solve the above problems, and provides a combustion control device for directly measuring the air volume and controlling the blower to control the air volume within a range where normal combustion is possible. The purpose is to get.
【０００７】[0007]
【課題を解決するための手段】請求項１に係る燃焼制御
装置は掃気用空気および燃焼用空気を供給する送風機
と、この送風機の近傍に設けられて風量を検出する風量
センサと、この風量センサが風量を検出した時点の必要
燃焼量を算出する必要燃焼量算出手段と、上記必要燃焼
量に対する必要空気量を記憶した記憶部と、この記憶部
を用いて求められる上記必要空気量を実際の空気量と比
較して偏差を算出する風量算出手段と、この風量算出手
段によって得られた偏差に基づき上記送風機の回転数を
修正する回転制御手段とを有するものである。A combustion control device according to a first aspect of the present invention includes a blower for supplying scavenging air and combustion air, an air flow sensor provided near the blower for detecting an air flow, and an air flow sensor. The required combustion amount calculation means for calculating the required combustion amount at the time when the air volume is detected, a storage unit that stores the required air amount for the required combustion amount, and the required air amount that is obtained by using this storage unit It has an air volume calculation means for calculating a deviation by comparing with the air volume, and a rotation control means for correcting the rotation speed of the blower based on the deviation obtained by the air volume calculation means.
【０００８】請求項２に係る燃焼制御装置は掃気用空気
および燃焼用空気を供給する送風機と、この送風機の近
傍に設けられて風量を検出する風量センサと、この風量
センサが風量を検出した時点の必要燃焼量を算出する必
要燃焼量算出手段と、上記必要燃焼量に対する必要空気
量を記憶した記憶部と、この記憶部を用いて求められる
必要空気量を実際の空気量と比較して偏差を算出する風
量算出手段と、この風量算出手段によって得られた偏差
に基づき上記送風機の回転数を修正する回転制御手段
と、上記送風機の回転数を回転磁界制御信号より求める
回転数検出手段と、上記送風機の回転数に対する風量セ
ンサの風量の理想的関係を表わす特性曲線の正常風量範
囲を記憶したメモリと、測定回転数と測定風量との交点
が上記特性曲線から得られる第１正常風量範囲から外れ
た場合に、上記第１正常風量範囲に入るように上記回転
磁界制御信号を制御すると共に、上記第１正常風量範囲
より外側の第２正常風量範囲から外れた場合に、上記送
風機を停止させて警報信号を発生させる制御警報手段と
を有するのである。A combustion control device according to a second aspect of the present invention provides a blower for supplying scavenging air and combustion air, an air volume sensor provided in the vicinity of the air blower for detecting an air volume, and a time point when the air volume sensor detects the air volume. Required combustion amount calculating means for calculating the required combustion amount of, the storage unit that stores the required air amount for the required combustion amount, and the required air amount obtained using this storage unit compared with the actual air amount An air volume calculation means for calculating, a rotation control means for correcting the rotation speed of the blower based on the deviation obtained by the air volume calculation means, and a rotation speed detection means for obtaining the rotation speed of the blower from a rotating magnetic field control signal, From the characteristic curve, the memory storing the normal air volume range of the characteristic curve representing the ideal relationship of the air volume of the air volume sensor with respect to the rotational speed of the blower, and the intersection of the measured rotational speed and the measured air volume are When the rotating magnetic field control signal is controlled so as to fall within the first normal airflow range when the temperature is outside the first normal airflow range, and when the rotating magnetic field control signal is outside the second normal airflow range outside the first normal airflow range. In addition, it has a control alarm means for stopping the blower and generating an alarm signal.
【０００９】[0009]
【作用】請求項１における燃焼制御装置は風量センサが
風量を検出した時点の必要燃焼量を算出し、記憶部に記
憶された必要燃焼量に対する必要空気量と実際の空気量
とを比較して偏差を算出し、この偏差に基づき上記送風
機の回転数を修正し、燃焼量に対して最適風量となるよ
うに送風機の回転数を制御するようにした。The combustion control device according to claim 1 calculates the required combustion amount at the time when the air amount sensor detects the air amount, and compares the required air amount with respect to the required combustion amount stored in the storage unit with the actual air amount. The deviation was calculated, the rotation speed of the blower was corrected based on this deviation, and the rotation speed of the blower was controlled so as to obtain the optimum air volume with respect to the combustion amount.
【００１０】請求項２における燃焼制御装置は測定回転
数と測定風量との交点が特性曲線から得られる第１正常
風量範囲から外れないように回転磁界制御信号を調整す
ると共に、第２正常風量範囲から外れた場合には送風機
を停止させる警報信号を発生させるようにした。According to another aspect of the present invention, the combustion control device adjusts the rotating magnetic field control signal so that the intersection of the measured rotational speed and the measured air flow does not deviate from the first normal air flow range obtained from the characteristic curve, and the second normal air flow range. When it comes off, the alarm signal to stop the blower is generated.
【００１１】[0011]
【実施例】以下、この発明の一実施例を図について説明
する。図１はこの発明の一実施例を示すブロック構成図
で、図１において図３と同一または均等な構成部分には
同一符号を付して重複説明を省略する。図において、１
３は送風機１の近傍に設けられて風量を検出する風量セ
ンサ、１４は水流を検出する水流検出部、１５は目標出
湯温度設定手段、１６は現在入水温度測定手段、１７は
風量センサ１３が風量を検出した時点の必要燃焼量を算
出する必要燃焼量算出手段で、この必要燃焼量算出手段
１７は上記現在入水温度測定手段１６よりの現在入水温
Ｔ’と目標出湯温度設定手段１５よりの設定湯温Ｔと水
流検出部１４測定流量Ｑとが供給されて必要燃焼量αが
Ｑ（Ｔ−Ｔ’）より算出される。１８は上記必要燃焼量
に対する必要空気量を記憶した記憶部、１９は現在必要
とする風量を算出する必要風量算出手段、２０は上記必
要燃焼量に対する必要空気量を実際の空気量と比較して
偏差を算出する風量算出手段、２１は風量算出手段２０
によって得られた偏差を零にするように送風機１の回転
数を制御する回転制御手段である。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention. In FIG. 1, the same or equivalent components as those in FIG. In the figure, 1
3 is an air flow sensor provided near the blower 1 to detect an air flow, 14 is a water flow detection unit for detecting a water flow, 15 is a target hot water temperature setting means, 16 is a current inlet temperature measuring means, 17 is an air flow sensor 13 is an air flow rate Is a required combustion amount calculation means for calculating a required combustion amount at the time of detecting the required combustion amount, and the required combustion amount calculation means 17 sets the current incoming water temperature T ′ from the current incoming water temperature measuring means 16 and the target hot water outlet temperature setting means 15. The hot water temperature T and the measured flow rate Q of the water flow detection unit 14 are supplied, and the required combustion amount α is calculated from Q (TT ′). Reference numeral 18 is a storage unit that stores the required air amount for the required combustion amount, 19 is a required air amount calculating means for calculating the required air amount at present, and 20 is the required air amount for the required combustion amount compared with the actual air amount. Air volume calculation means for calculating deviation, 21 is air volume calculation means 20
The rotation control means controls the number of rotations of the blower 1 so that the deviation obtained by the above is zero.
【００１２】２２は送風機１の回転数を回転磁界制御信
号より求める回転数検出手段、２３は現在の風量と回転
数との交点である測定点を算出する測定点算出手段、２
４は送風機１の回転数と風量センサ１３の風量との理想
的関係を表わす特性曲線に対する第１正常風量範囲を記
憶する第１メモリ、２５は上記特性曲線に対する第２正
常風量範囲を記憶する第２メモリ、２６は測定回転数と
測定風量との交点が上記第１正常風量範囲から外れた場
合に、上記第１正常風量範囲に入るように上記回転磁界
制御信号を制御する制御手段、２７は上記第２正常風量
範囲から外れた場合に、上記送風機１を停止させ、警報
信号を発生させる警報手段である。Reference numeral 22 is a rotational speed detecting means for obtaining the rotational speed of the blower 1 from the rotating magnetic field control signal, 23 is a measuring point calculating means for calculating a measuring point which is an intersection of the current air volume and the rotational speed, 2
Reference numeral 4 is a first memory for storing a first normal air volume range for a characteristic curve representing an ideal relationship between the rotation speed of the blower 1 and the air volume of the air volume sensor 13, and 25 is a first memory for storing a second normal air volume range for the characteristic curve. 2 memory, 26 is a control means for controlling the rotating magnetic field control signal so that the intersecting point between the measured rotation speed and the measured air volume is out of the first normal air volume range, 27 is a control means. It is an alarm means for stopping the blower 1 and generating an alarm signal when it is out of the second normal air volume range.
【００１３】次に動作について説明する。水流検出部１
４が水流を検出すると、駆動モータ１ｂを始動し、風量
センサ１３にて掃気量を積算する。一定の掃気を完了す
ると、図示を省略した点火装置にて点火を試みる。点火
がスムーズに行われない場合には風量または燃料量を調
節し、点火の確率を高める制御を行う。正常に点火が完
了すると、比例燃焼に入る。ここで、外風の影響などで
風量が不安定になり、燃焼の安定性が得られない場合
は、駆動モータ１ｂの回転数などにより風量を調整し、
燃焼の安定を計る。すなわち、風量または燃料量を調節
し、適正な空燃比を得るように制御を行う。Next, the operation will be described. Water flow detector 1
When 4 detects the water flow, the drive motor 1b is started, and the air flow sensor 13 integrates the scavenging amount. When constant scavenging is completed, ignition is attempted by an ignition device (not shown). When the ignition is not performed smoothly, the amount of air or the amount of fuel is adjusted to perform control to increase the probability of ignition. When ignition is completed normally, proportional combustion starts. Here, when the air volume becomes unstable due to the influence of the outside wind and the stability of combustion cannot be obtained, the air volume is adjusted by the rotation speed of the drive motor 1b,
Measure the stability of combustion. That is, the amount of air or the amount of fuel is adjusted to perform control so as to obtain an appropriate air-fuel ratio.
【００１４】[0014]
【発明の効果】以上のように請求項１によれば掃気用空
気および燃焼用空気を供給する送風機と、この送風機の
近傍に設けられて風量を検出する風量センサと、この風
量センサが風量を検出した時点の必要燃焼量を算出する
必要燃焼量算出手段と、上記必要燃焼量に対する必要空
気量を記憶した記憶部と、この記憶部を用いて求められ
る上記必要空気量を実際の空気量と比較して偏差を算出
する風量算出手段と、この風量算出手段によって得られ
た偏差に基づき上記送風機の回転数を修正する回転制御
手段とを有するように構成したので、風量を直接計測
し、送風機を制御して正常に燃焼できる範囲に風量を制
御するようにした効果がある。As described above, according to the first aspect of the present invention, the blower for supplying the scavenging air and the combustion air, the air volume sensor provided in the vicinity of the blower for detecting the air volume, and the air volume sensor for detecting the air volume. Required combustion amount calculating means for calculating the required combustion amount at the time of detection, a storage unit that stores the required air amount for the required combustion amount, and the required air amount obtained using this storage unit as the actual air amount. Since the air flow rate calculation means for comparing and calculating the deviation and the rotation control means for correcting the rotation speed of the blower based on the deviation obtained by the air flow rate calculation means are configured, the air flow rate is directly measured and the blower is measured. Is controlled to control the air flow within a range where normal combustion is possible.
【００１５】また、請求項２によれば掃気用空気および
燃焼用空気を供給する送風機と、この送風機の近傍に設
けられて風量を検出する風量センサと、この風量センサ
が風量を検出した時点の必要燃焼量を算出する必要燃焼
量算出手段と、上記必要燃焼量に対する必要空気量を記
憶した記憶部と、この記憶部を用いて求められる必要空
気量を実際の空気量と比較して偏差を算出する風量算出
手段によって得られた偏差に基づき上記送風機の回転数
を修正する回転制御手段と、上記送風機の回転数を回転
磁界制御信号より求める回転数検出手段と、上記送風機
の回転数に対する風量センサの風量の理想的関係を表わ
す特性曲線の正常風量範囲を記憶したメモリと、測定回
転数と測定風量との交点が上記特性曲線から得られる第
１正常風量範囲から外れた場合に、上記第１正常風量範
囲に入るように上記回転磁界制御信号を制御すると共
に、上記第１正常風量範囲より外側の第２正常風量範囲
から外れた場合に、上記送風機を停止させて警報信号を
発生させる制御警報手段とを有するように構成したの
で、従来タイマで一定時間燃焼室の掃気をしていたのが
なくなり風量で掃気できるようにして必要以上の掃気時
間が必要でなくなり、掃気による熱ロスを最小限にとど
めることができ、かつ各燃焼状態に応じたきめの細かい
風量制御が可能なので、燃料と空気との混合比を最適に
制御でき、ＮＯＸの発生を最小限に止めることができる
という効果がある。According to a second aspect of the present invention, an air blower for supplying the scavenging air and the combustion air, an air volume sensor provided near the air blower for detecting the air volume, and an air volume sensor at the time when the air volume sensor detects the air volume. Necessary combustion amount calculation means for calculating the required combustion amount, a storage unit that stores the required air amount for the required combustion amount, and a deviation by comparing the required air amount obtained using this storage unit with the actual air amount. Rotation control means for correcting the rotation speed of the blower based on the deviation obtained by the air volume calculation means for calculating, rotation speed detection means for obtaining the rotation speed of the blower from a rotating magnetic field control signal, and air flow rate for the rotation speed of the blower. The memory storing the normal air volume range of the characteristic curve representing the ideal relationship of the air volume of the sensor, and the intersection of the measured rotation speed and the measured air volume is the first normal air volume range obtained from the characteristic curve. When it deviates, it controls the rotating magnetic field control signal so as to enter the first normal air flow range, and when it deviates from the second normal air flow range outside the first normal air flow range, stops the blower. Since it is configured to have a control alarm means for generating an alarm signal by using a timer, the conventional timer does not have to scavenging the combustion chamber for a certain period of time, so that it can be scavenged by the air volume and unnecessary scavenging time is unnecessary. Since heat loss due to scavenging can be minimized and fine air volume control according to each combustion state is possible, the mixing ratio of fuel and air can be optimally controlled and NOX generation can be minimized. The effect is that it can be stopped.
【図１】この発明のクレーム対応図である。FIG. 1 is a diagram corresponding to a claim of the present invention.
【図２】この発明の一実施例による燃焼制御装置を示す
ブロック図である。FIG. 2 is a block diagram showing a combustion control device according to an embodiment of the present invention.
【図３】この発明に係る燃焼制御装置の他の実施例を示
すブロック図である。FIG. 3 is a block diagram showing another embodiment of the combustion control device according to the present invention.
【図４】送風機の回転数と風量との関係を示す特性曲線
図である。FIG. 4 is a characteristic curve diagram showing the relationship between the rotation speed of the blower and the air volume.
【図５】従来の燃焼制御装置の一例を示す構成ブロック
図である。FIG. 5 is a configuration block diagram showing an example of a conventional combustion control device.
【図６】風量に対する圧力および駆動電流の送風特性を
示す特性曲線図である。FIG. 6 is a characteristic curve diagram showing blowing characteristics of pressure and drive current with respect to air volume.
１ 送風機 １３ 風量センサ １７ 必要燃焼量算出手段 １８ 記憶部 ２０ 風量算出手段 ２１ 回転制御手段 ２２ 回転数検出手段 ２４ 第１メモリ ２５ 第２メモリ ２６ 制御手段 ２７ 警報手段 DESCRIPTION OF SYMBOLS 1 Blower 13 Air volume sensor 17 Required combustion amount calculation means 18 Storage part 20 Air volume calculation means 21 Rotation control means 22 Rotation speed detection means 24 First memory 25 Second memory 26 Control means 27 Warning means
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3310228AJP2647584B2 (en) | 1991-10-30 | 1991-10-30 | Combustion control device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3310228AJP2647584B2 (en) | 1991-10-30 | 1991-10-30 | Combustion control device |
| Publication Number | Publication Date |
|---|---|
| JPH05118532Atrue JPH05118532A (en) | 1993-05-14 |
| JP2647584B2 JP2647584B2 (en) | 1997-08-27 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3310228AExpired - Fee RelatedJP2647584B2 (en) | 1991-10-30 | 1991-10-30 | Combustion control device |
| Country | Link |
|---|---|
| JP (1) | JP2647584B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074650A (en)* | 1993-06-11 | 1995-01-10 | Hanshin Electric Co Ltd | Method and apparatus for detecting malfunction of exhaust gas system of combustion apparatus |
| WO1996007056A1 (en)* | 1994-08-31 | 1996-03-07 | Gastar Co., Ltd. | Combustion equipment for judging abnormality or life |
| WO1996021128A1 (en)* | 1994-12-30 | 1996-07-11 | Firma J. Eberspächer | Vehicle heater with combustion-air fan control |
| US5658140A (en)* | 1995-01-30 | 1997-08-19 | Gastar Co., Ltd. | Combustion device |
| EP4600559A1 (en)* | 2024-02-06 | 2025-08-13 | Vaillant GmbH | Method for operating a heating device, computer program, control and control device and heating device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0367920A (en)* | 1989-08-05 | 1991-03-22 | Eiken Kogyo Kk | Combustion control device for gas burner |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0367920A (en)* | 1989-08-05 | 1991-03-22 | Eiken Kogyo Kk | Combustion control device for gas burner |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH074650A (en)* | 1993-06-11 | 1995-01-10 | Hanshin Electric Co Ltd | Method and apparatus for detecting malfunction of exhaust gas system of combustion apparatus |
| WO1996007056A1 (en)* | 1994-08-31 | 1996-03-07 | Gastar Co., Ltd. | Combustion equipment for judging abnormality or life |
| WO1996021128A1 (en)* | 1994-12-30 | 1996-07-11 | Firma J. Eberspächer | Vehicle heater with combustion-air fan control |
| US5658140A (en)* | 1995-01-30 | 1997-08-19 | Gastar Co., Ltd. | Combustion device |
| EP4600559A1 (en)* | 2024-02-06 | 2025-08-13 | Vaillant GmbH | Method for operating a heating device, computer program, control and control device and heating device |
| Publication number | Publication date |
|---|---|
| JP2647584B2 (en) | 1997-08-27 |
| Publication | Publication Date | Title |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |