PROBLEM TO BE SOLVED: To supply stable fuel by controlling the supply of the fuel so as to cope with a rapid load change of an engine even if the load change of the engine occurs.SOLUTION: A fuel gas supply system 10 for supplying fuel gas to an engine 40 comprises a tank 20 for liquefied gas, a pressurizing mechanism 30 for pressurizing and delivering boil-off gas of the liquefied gas or the liquefied gas as fuel, and a pressurization control device 62 for controlling a delivery rate of the fuel to be delivered by the pressurizing mechanism. The control of the delivery rate to be performed by the pressurization control device includes feedback control for controlling the delivery rate on the basis of a difference between a set pressure established on the basis of a required pressure of the fuel required by the engine and a measured pressure of the fuel after the pressurization, and feedforward control for controlling the delivery rate on the basis of a change in a gas load signal indicating consumption of the fuel gas in the engine.SELECTED DRAWING: Figure 1
【課題】急激なエンジンの負荷変動が生じても、エンジンの負荷変動に対応するように燃料の供給を制御して、安定した燃料をエンジンに供給する。【解決手段】エンジン40に燃料ガスを供給する燃料ガス供給システム10は、液化ガスのタンク20と、前記液化ガスのボイルオフガスあるいは前記液化ガスを燃料として加圧し送出する加圧機構30と、前記加圧機構が送出する燃料の送出量を制御する加圧制御装置62と、を備える。前記加圧制御装置により行う前記送出量の制御は、前記エンジンが要求する燃料の要求圧力に基づいて定めた設定圧力と加圧後の前記燃料の計測圧力との差分に基づいて前記送出量を制御するフィードバック制御と、前記エンジンの燃料ガスの消費量を示すガスロード信号の変動に基づいて前記送出量を制御するフィードフォワード制御と、を含む。【選択図】図1
FUEL GAS SUPPLY SYSTEM, SHIP, AND FUEL GAS SUPPLY METHOD
燃料ガス供給システム、船舶、及び燃料ガス供給方法
2018-11-08
Patent
Electronic Resource
Japanese
IPC: | F02M Zuführen von Brennstoff-Luft-Gemischen oder deren Bestandteilen bei Brennkraftmaschinen allgemein , SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F02B INTERNAL-COMBUSTION PISTON ENGINES , Brennkraftmaschinen mit innerer Verbrennung mit Verdrängerwirkung / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen |
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