JPH11159429A - Ship propelling machine - Google Patents
Ship propelling machineInfo
- Publication number
- JPH11159429A JPH11159429A JP13148298A JP13148298A JPH11159429A JP H11159429 A JPH11159429 A JP H11159429A JP 13148298 A JP13148298 A JP 13148298A JP 13148298 A JP13148298 A JP 13148298A JP H11159429 A JPH11159429 A JP H11159429A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- engine
- internal combustion
- combustion engine
- abnormality
- 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.)
- Granted
Links
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、内燃機関を搭載
した船舶推進機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a marine propulsion device equipped with an internal combustion engine.
【０００２】[0002]
【従来の技術】内燃機関を搭載した船舶推進機におい
て、例えばオーバヒートやオイルレベルの低下等の内燃
機関に生じる異常を機関異常検出回路で検出し、この検
出信号により機関異常警報回路を作動させ、例えば内燃
機関の回転速度を低下させて警報するものがある。2. Description of the Related Art In a marine propulsion system equipped with an internal combustion engine, an abnormality that occurs in the internal combustion engine, such as overheating or a decrease in oil level, is detected by an engine abnormality detection circuit. For example, an alarm is issued by lowering the rotation speed of an internal combustion engine.
【０００３】ところで、船舶においては、メータやラン
プ等の航海装置の消費電力が大きいため、例えば一対の
バッテリを備え、一方のバッテリを内燃機関の運転で充
電し、他方のバッテリは航海装置や内燃機関の異常を検
出する機関異常検出回路等の駆動電源として使用し、こ
の両者を適当な時期に切換えるものがある。[0003] In a ship, since the power consumption of a navigation device such as a meter or a lamp is large, for example, the vehicle is provided with a pair of batteries, one of which is charged by the operation of the internal combustion engine, and the other is charged by the navigation device or the internal combustion engine. There is one that is used as a drive power supply for an engine abnormality detection circuit or the like that detects an abnormality of the engine, and switches both of them at an appropriate time.
【０００４】このようにバッテリを頻繁に切換えるもの
にあっては、切換る時や、切換え間違い、或いは途中で
バッテリが外れる場合があり、このときに生じるバッテ
リの負荷変動やノイズが機関異常警報回路の作動に影響
を及ぼすおそれがある。[0004] In the case where the battery is switched frequently as described above, the battery may be switched, or the switching may be incorrect, or the battery may be disconnected during the switching. It may affect the operation of.
【０００５】このため、この出願人は先に特開昭６３ー
２２７９６１号公報に開示されるような船舶推進機の制
御装置を提案しており、このものはバッテリの外れ状態
を検出するための専用の検出回路を設け、この検出回路
でバッテリはずれを検出し、内燃機関の回転制御やブザ
ー等の警告手段によって運転者に知らせている。For this reason, the present applicant has previously proposed a control device for a marine propulsion device as disclosed in Japanese Patent Application Laid-Open No. 63-227961, which is for detecting a battery disconnection state. A dedicated detection circuit is provided, and the detection circuit detects the disconnection of the battery, and notifies the driver by warning means such as rotation control of the internal combustion engine and a buzzer.
【０００６】[0006]
【発明が解決しようとする課題】このように、船舶推進
機においては、内燃機関の異常やバッテリの外れが生じ
ることがあるが、この場合には航海中であり、内燃機関
を停止することなく、確実に内燃機関の異常やバッテリ
の外れの警告を行なう必要がある。As described above, in a marine propulsion device, an abnormality in the internal combustion engine and a disconnection of the battery may occur. In this case, the marine vessel propulsion is underway and the engine is stopped without stopping. Therefore, it is necessary to surely give a warning of an abnormality of the internal combustion engine and a disconnection of the battery.
【０００７】この発明はこのような課題を解消すべくな
されたもので、内燃機関を停止することなく、確実に内
燃機関の異常やバッテリの外れ等の警告を行なうことが
可能な船舶推進機を提供することを目的としている。SUMMARY OF THE INVENTION The present invention has been made in order to solve such a problem, and there is provided a marine propulsion device capable of reliably issuing a warning such as abnormality of an internal combustion engine or disconnection of a battery without stopping the internal combustion engine. It is intended to provide.
【０００８】[0008]
【課題を解決するための手段】前記課題を解決し、かつ
目的を達成するために、この発明は、以下のように構成
した。Means for Solving the Problems In order to solve the above problems and achieve the object, the present invention has the following constitution.
【０００９】請求項１記載の発明は、『内燃機関により
発電する交流発電機と、この交流発電機との間に接続し
た制御ユニットとを備え、この制御ユニットは、前記交
流発電機の交流出力により駆動されて異常警告を行なう
ことを特徴とする船舶推進機。』である。According to a first aspect of the present invention, there is provided an AC generator for generating electric power by an internal combustion engine, and a control unit connected between the AC generator and the AC generator. A marine propulsion device, which is driven by a motor to issue an abnormality warning. ].
【００１０】この請求項１記載の発明によれば、内燃機
関により発電する交流発電機の交流出力により駆動し
て、内燃機関を停止することなく、確実に内燃機関の異
常やバッテリの外れ等の警告を行なうことができる。[0010] According to the first aspect of the present invention, the internal combustion engine is driven by the AC output of the AC generator that generates electric power by the internal combustion engine, and without failing to stop the internal combustion engine, the abnormality of the internal combustion engine or disconnection of the battery can be surely prevented. A warning can be given.
【００１１】[0011]
【発明の実施の形態】以下、この発明の船舶推進機を図
面に示す実施例に基づいて説明する。図１は船舶推進機
の回路図、図２は機関異常警報回路の詳細ブロック図、
図３は機関異常警報回路への入力電圧を示す図、図４は
平滑回路の出力電圧を示す図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A ship propulsion device according to the present invention will be described below with reference to an embodiment shown in the drawings. 1 is a circuit diagram of a marine propulsion device, FIG. 2 is a detailed block diagram of an engine abnormality alarm circuit,
FIG. 3 is a diagram showing the input voltage to the engine abnormality alarm circuit, and FIG. 4 is a diagram showing the output voltage of the smoothing circuit.
【００１２】図１において、符号１はフライホイールマ
グネトウで、船舶推進機の内燃機関の運転で駆動され、
これによりチャージコイル２、パルサコイル３及びライ
トコイル４が出力する。このチャージコイル２の交流電
力は、制御ユニット５に設けられた点火回路６のダイオ
ードＤ１で整流されてコンデンサＣ１に充電され、この
充電電荷はサイリスタＳＣＲ１の導通で放電され、点火
コイル７の二次側に高電圧を発生して、点火プラグ８を
スパークさせる。In FIG. 1, reference numeral 1 denotes a flywheel magneto which is driven by the operation of an internal combustion engine of a marine propulsion device.
Thereby, the charge coil 2, the pulsar coil 3, and the write coil 4 output. The AC power of the charge coil 2 is rectified by the diode D1 of the ignition circuit 6 provided in the control unit 5 and charged in the capacitor C1, and this charged charge is discharged by conduction of the thyristor SCR1 and the secondary of the ignition coil 7 is discharged. A high voltage is generated on the side to spark the spark plug 8.
【００１３】サイリスタＳＣＲ１のゲートはコンデンサ
Ｃ２を介してアースされ、このコンデンサＣ２とゲート
との間にはパルサコイル３が接続され、このコンデンサ
Ｃ２に並列に抵抗Ｒ１が接続されている。また、パルサ
コイル３には機関停止回路９と機関異常警報回路１０と
が接続されている。機関停止回路９はそのトランジスタ
Ｔｒ１のエミッタがパルサコイル３に接続され、コレク
タがアースされ、ベースには抵抗Ｒ２を介してキルスイ
ッチ１１が接続されている。キルスイッチ１１の操作で
トランジスタＴｒ１が導通して、パルサコイル３の出力
側がアースされ、パルサコイル３の出力が消滅する。The gate of the thyristor SCR1 is grounded via a capacitor C2, a pulsar coil 3 is connected between the capacitor C2 and the gate, and a resistor R1 is connected in parallel with the capacitor C2. The pulsar coil 3 is connected to an engine stop circuit 9 and an engine abnormality alarm circuit 10. In the engine stop circuit 9, the emitter of the transistor Tr1 is connected to the pulser coil 3, the collector is grounded, and the kill switch 11 is connected to the base via the resistor R2. By operating the kill switch 11, the transistor Tr1 is turned on, the output side of the pulser coil 3 is grounded, and the output of the pulser coil 3 is extinguished.
【００１４】このため、特に、遠隔操作を行なう船舶で
はキルスイッチ１１と機関停止回路９との間隔が長くな
り、これにより信号線が長くなる場合でも、機関停止回
路９が作動すると、パルス信号は制御ユニット５内を通
り、すぐにパルサコイル３に戻るため、パルス信号が流
れる線長が短縮されてノイズが入り込みにくい。従っ
て、点火回路６を誤動作させることがなく、内燃機関を
速やかに停止することができる。For this reason, especially in the case of a ship performing remote control, the interval between the kill switch 11 and the engine stop circuit 9 becomes long, and even if the signal line becomes long, when the engine stop circuit 9 is operated, the pulse signal is generated. Since the pulse passes through the control unit 5 and immediately returns to the pulsar coil 3, the length of the line through which the pulse signal flows is reduced, and noise is less likely to enter. Therefore, the internal combustion engine can be quickly stopped without causing the ignition circuit 6 to malfunction.
【００１５】また、キルスイッチ１１によって制御され
る制御信号はトランジスタＴｒ１を作動させるだけでよ
いため、トランジスタＴｒ１の作動電圧を高くして、ノ
イズに強い回路にすることができる。Further, since the control signal controlled by the kill switch 11 only needs to operate the transistor Tr1, the operating voltage of the transistor Tr1 can be increased to provide a circuit resistant to noise.
【００１６】前記機関異常警報回路１０は失火回路１
２、回転速度制御回路１３及び保持回路１４で構成され
ている。The engine abnormality alarm circuit 10 includes a misfire circuit 1
2. It is composed of a rotation speed control circuit 13 and a holding circuit 14.
【００１７】機関異常警報回路１０の保持回路１４には
機関異常検出回路１５が接続され、この機関異常検出回
路１５の駆動電源としてのバッテリ１６はメインスイッ
チ１７を介してレクチファイアレギュレータ１８に電源
線Ｌ１により接続されている。レクチファイアレギュレ
ータ１８はライトコイル４の出力を整流すると共に、所
定の電圧に調整してバッテリ１６の充電を行なうと共
に、ブザー１９とランプ２０の並列回路を介して機関異
常検出回路１５に異常検出線Ｌ２を介して電圧を印加す
る。An engine abnormality detection circuit 15 is connected to the holding circuit 14 of the engine abnormality alarm circuit 10, and a battery 16 as a driving power supply for the engine abnormality detection circuit 15 is connected to a rectifier regulator 18 via a main switch 17 by a power line. They are connected by L1. The rectifier regulator 18 rectifies the output of the light coil 4, adjusts the output to a predetermined voltage to charge the battery 16, and supplies an abnormality detection line to the engine abnormality detection circuit 15 via a parallel circuit of a buzzer 19 and a lamp 20. A voltage is applied via L2.
【００１８】この機関異常検出回路１５はオーバヒート
検出回路２１、オイルレベル検出回路２２及び２機掛の
アラーム検出回路２３とから構成されている。The engine abnormality detection circuit 15 comprises an overheat detection circuit 21, an oil level detection circuit 22, and an alarm detection circuit 23 for two engines.
【００１９】オーバーヒート検出回路２１は内燃機関の
冷却水の温度が所定の温度異常になると、接点２４が閉
じて検出信号を出力する。オイルレベル検出回路２２は
オイルレベルが所定の位置になると、接点２５が閉じて
サイリスタＳＣＲ２が導通して検出信号を出力する。ま
た、アラーム検出回路２３は推進機が例えば２機掛され
ている場合に、他方の内燃機関に異常が生じると、正常
に運転される推進機の内燃機関の運転を制御する（例え
ば、停止させる）システムにおいて、その異常を制御す
るものである。例えば他方の推進機の内燃機関の異常信
号で接点２６が閉じると、これによりトランジスタＴｒ
２が導通し、正常に作動する内燃機関を停止させる検出
信号を出力する。When the temperature of the cooling water of the internal combustion engine becomes a predetermined temperature abnormality, the overheat detecting circuit 21 closes the contact 24 and outputs a detection signal. When the oil level reaches a predetermined position, the oil level detection circuit 22 closes the contact 25, and the thyristor SCR2 conducts to output a detection signal. Further, when two propulsion units are mounted, for example, and the other internal combustion engine becomes abnormal, the alarm detection circuit 23 controls the operation of the normally operating propulsion unit internal combustion engine (for example, stops the operation). ) In the system, the abnormality is controlled. For example, when the contact 26 is closed by an abnormality signal of the internal combustion engine of the other propulsion device, the transistor Tr
2 conducts and outputs a detection signal for stopping the normally operating internal combustion engine.
【００２０】機関異常検出回路１５の異常検出線Ｌ２に
は、機関異常警報回路１０が接続され、この接続点Ａか
らの検出信号の出力で機関異常警報回路１０が作動する
と共に、ブザー１９及びランプ２０で警報される。An engine abnormality alarm circuit 10 is connected to the abnormality detection line L2 of the engine abnormality detection circuit 15. The engine abnormality alarm circuit 10 is activated by the output of a detection signal from the connection point A, and a buzzer 19 and a lamp are provided. An alarm is issued at 20.
【００２１】機関異常警報回路１０は制御ユニット５に
組込まれており、機関異常警報回路１０の回転速度制御
回路１３は図２に示すように、レクチファイアレギュレ
ータの出力電圧を平滑にする平滑回路１３１、この平滑
にされた電圧を予め設定された電圧判別レベルＶ０と比
較して判別を行なう判別回路１３２、判別回路１３２か
らの制御信号に基づき失火回路１２を作動させる失火制
御回路１３３から構成されている。The engine abnormality alarm circuit 10 is incorporated in the control unit 5, and the rotational speed control circuit 13 of the engine abnormality alarm circuit 10 has a smoothing circuit 131 for smoothing the output voltage of the rectifier regulator as shown in FIG. A discrimination circuit 132 for comparing the smoothed voltage with a preset voltage discrimination level V0 for discrimination, and a misfire control circuit 133 for activating the misfire circuit 12 based on a control signal from the discrimination circuit 132. I have.
【００２２】この機関異常警報回路１０は保持回路１４
の作動で回転速度制御回路１３を介して失火回路１２を
作動させると、例えばパルサコイル３のパルサ信号がま
びかれる。これにより、サイリスタＳＣＲ１の導通の時
間間隔が長くなり、点火プラグ８のスパークがまびかれ
て内燃機関の回転速度が低下し、内燃機関の異常の警報
が行なわれる。The engine abnormality alarm circuit 10 includes a holding circuit 14
When the misfire circuit 12 is actuated via the rotation speed control circuit 13 by the operation described above, for example, a pulsar signal of the pulsar coil 3 is broadcast. As a result, the conduction time interval of the thyristor SCR1 becomes longer, sparks of the spark plug 8 spread, the rotation speed of the internal combustion engine decreases, and a warning of an abnormality of the internal combustion engine is issued.
【００２３】機関異常警報回路１０の作動を図３及び図
４に基づいて説明する。The operation of the engine abnormality alarm circuit 10 will be described with reference to FIGS.
【００２４】バッテリ１６が接続され、しかも機関異常
検出回路１５が作動していない正常時には、接続点Ａの
電圧Ｖ１は平滑回路１３１で平滑され、この電圧は判別
回路１３２で設定された電圧判別レベルＶ０以上である
から、失火制御回路１３３は作動しない。When the battery 16 is connected and the engine abnormality detection circuit 15 is not operating normally, the voltage V1 at the connection point A is smoothed by the smoothing circuit 131, and this voltage is set to the voltage determination level set by the determination circuit 132. Since it is V0 or more, the misfire control circuit 133 does not operate.
【００２５】ところで、バッテリ１６が接続された状態
で、機関異常検出回路１５が作動すると、アースされる
から接続点Ａの電圧Ｖ２はほぼゼロ電圧になり、判別回
路１３２で設定された電圧判別レベルＶ０以下である。
従って、判別回路１３２から制御信号で失火制御回路１
３３は作動し、失火回路１２が作動して点火回路６のサ
イリスタＳＣＲ１の導通の時間間隔が長くなり、内燃機
関の回転速度が低下し、これにより警報される。By the way, when the engine abnormality detection circuit 15 is operated with the battery 16 connected, the voltage V2 at the connection point A becomes almost zero because the ground is grounded. V0 or less.
Therefore, the misfire control circuit 1
33 is activated, the misfire circuit 12 is activated, the conduction time interval of the thyristor SCR1 of the ignition circuit 6 is lengthened, and the rotation speed of the internal combustion engine is reduced, whereby an alarm is issued.
【００２６】また、機関異常検出回路１５が作動しない
状態で、バッテリ１６が外れると、レクチファイアレギ
ュレータ１８の出力電圧のみが印加されるため、接続点
Ａの電圧Ｖ３はパルス波形となり、この出力電圧Ｖ３の
平滑回路１３１で平滑にされた平均電圧は判別回路１３
２で設定された電圧判別レベルＶ０以下である。従っ
て、判別回路１３２から制御信号で失火制御回路１３３
は作動し、失火回路１２が作動して同様に点火回路６の
サイリスタＳＣＲ１の導通の時間間隔が長くなり、内燃
機関の回転速度が低下し、これにより警報する。If the battery 16 is disconnected in a state where the engine abnormality detection circuit 15 is not operated, only the output voltage of the rectifier regulator 18 is applied, so that the voltage V3 at the connection point A has a pulse waveform. The average voltage smoothed by the V3 smoothing circuit 131 is determined by the determination circuit 13.
2 is equal to or lower than the voltage determination level V0 set in Step 2. Therefore, the misfire control circuit 133 is controlled by the control signal from the discrimination circuit 132.
Is activated, the misfire circuit 12 is activated, and similarly, the conduction time interval of the thyristor SCR1 of the ignition circuit 6 is increased, and the rotation speed of the internal combustion engine is reduced, thereby giving an alarm.
【００２７】また、前記の平滑回路１３１を設けない
で、図３に示すように、バッテリ外れ時のレクチファイ
アレギュレータ１８の出力電圧がＯＶになる部分とを検
出し、この検出で失火制御回路１３３を作動させて、バ
ッテリ１６の外れを検出することも可能である。Without providing the smoothing circuit 131, a portion where the output voltage of the rectifier regulator 18 becomes OV when the battery is disconnected is detected as shown in FIG. Can be operated to detect disconnection of the battery 16.
【００２８】このように、機関異常警報回路１０では機
関異常検出回路１５の作動による電圧と、バッテリ１６
の外れによる電圧を、これらの異常が生じない正常時の
電圧とを判別して、この異常状態が解除されるまで内燃
機関の異常として保持回路１４を介して、失火回路１２
を作動させて警報する。As described above, in the engine abnormality alarm circuit 10, the voltage caused by the operation of the engine abnormality detection circuit 15 and the battery 16
Of the internal combustion engine through the holding circuit 14 through the holding circuit 14 until the abnormal state is resolved.
Is activated to give an alarm.
【００２９】この保持回路１４の保持の解除はニュート
ラルスイッチや図示しないスロットル全閉時の回転数を
検出して行なわれる。この異常の警報を行なう保持回路
１４は、ニュートラルスイッチや図示しない全閉回転速
度の検出で解除され、内燃機関を停止することなく安全
に解除することができ、バッテリ１６の負荷変動やノイ
ズ等によって解除されることがない。The holding of the holding circuit 14 is released by detecting a neutral switch or a rotation speed (not shown) when the throttle is fully closed. The holding circuit 14 that issues an alarm for this abnormality is released by detecting a neutral switch or a fully-closed rotation speed (not shown), and can be released safely without stopping the internal combustion engine. It will not be released.
【００３０】また、この実施例では機関異常警報回路１
０を制御ユニット５に組込んでいるが、機関異常警報回
路１０は独立にユニット化したものでもよい。In this embodiment, the engine abnormality alarm circuit 1
Although 0 is incorporated in the control unit 5, the engine abnormality alarm circuit 10 may be independently unitized.
【００３１】[0031]
【発明の効果】以上説明したように、請求項１記載の発
明では、内燃機関により発電する交流発電機の交流出力
により駆動して、内燃機関を停止することなく、確実に
内燃機関の異常やバッテリの外れ等の警告を行なうこと
ができる。As described above, according to the first aspect of the present invention, the internal combustion engine is driven by the AC output of the AC generator that generates electric power by the internal combustion engine, and the abnormality of the internal combustion engine can be reliably determined without stopping the internal combustion engine. A warning such as a battery disconnection can be issued.
【図１】船舶推進機の回路図である。FIG. 1 is a circuit diagram of a marine propulsion device.
【図２】機関異常警報回路の詳細ブロック図である。FIG. 2 is a detailed block diagram of an engine abnormality alarm circuit.
【図３】機関異常警報回路への入力電圧を示す図であ
る。FIG. 3 is a diagram illustrating an input voltage to an engine abnormality alarm circuit.
【図４】平滑回路の出力電圧を示す図である。FIG. 4 is a diagram illustrating an output voltage of a smoothing circuit.
１ フライホイールマグネトウ ２ チャージコイル ３ パルサコイル ４ ライトコイル ５ 制御ユニット ６ 点火回路 ７ 点火コイル ８ 点火プラグ １０ 機関異常警報回路 １５ 機関異常検出回路 １６ バッテリ DESCRIPTION OF SYMBOLS 1 Flywheel magneto 2 Charge coil 3 Pulser coil 4 Light coil 5 Control unit 6 Ignition circuit 7 Ignition coil 8 Spark plug 10 Engine abnormality alarm circuit 15 Engine abnormality detection circuit 16 Battery
Claims (1)
の交流発電機との間に接続した制御ユニットとを備え、
この制御ユニットは、前記交流発電機の交流出力により
駆動されて異常警告を行なうことを特徴とする船舶推進
機。An AC generator for generating electric power by an internal combustion engine, and a control unit connected between the AC generator and the AC generator,
This control unit is driven by an AC output of the AC generator to issue an abnormality warning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13148298A JP3254521B2 (en) | 1998-05-14 | 1998-05-14 | Ship propulsion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13148298A JP3254521B2 (en) | 1998-05-14 | 1998-05-14 | Ship propulsion |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01078905A Division JP3089560B2 (en) | 1989-03-30 | 1989-03-30 | Ship propulsion |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11159429A true JPH11159429A (en) | 1999-06-15 |
| JP3254521B2 JP3254521B2 (en) | 2002-02-12 |
Family
ID=15059019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13148298A Expired - Lifetime JP3254521B2 (en) | 1998-05-14 | 1998-05-14 | Ship propulsion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3254521B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011208522A (en) * | 2010-03-29 | 2011-10-20 | Shindengen Electric Mfg Co Ltd | Ignition device of internal combustion engine |
| GB2496207A (en) * | 2011-11-07 | 2013-05-08 | Ec Power As | Engine generator having misfire detection and safety mode |
-
1998
- 1998-05-14 JP JP13148298A patent/JP3254521B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011208522A (en) * | 2010-03-29 | 2011-10-20 | Shindengen Electric Mfg Co Ltd | Ignition device of internal combustion engine |
| GB2496207A (en) * | 2011-11-07 | 2013-05-08 | Ec Power As | Engine generator having misfire detection and safety mode |
| GB2496207B (en) * | 2011-11-07 | 2018-08-22 | Ec Power As | Engine generator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3254521B2 (en) | 2002-02-12 |
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