PROBLEM TO BE SOLVED: To accurately control the pressure of fuel supplied to an internal combustion engine for propulsion in order to cope with short-term fluctuation of the rotation speed of a propeller for propulsion of a vessel.SOLUTION: A fuel supply system comprises: a compressor for compressing fuel; a main pipe that is connected to an output end of the compressor and through which fuel supplied to the internal combustion engine for propulsion flows; a sensor for measuring the pressure of compressed fuel in the main pipe; a first control device for controlling an amount of fuel supply of the fuel supplied to the internal combustion engine; and a second control device for controlling the pressure of fuel compressed by the compressor. The second control device calculates a torque applied to a rotary main shaft on the basis of a main shaft rotational speed of the rotary main shaft, a vessel speed, and the information on a pitch of the propeller for propulsion, predicts a fuel supply amount for generating the rotational torque of the internal combustion engine corresponding to the torque, and controls the pressure of the fuel in the main pipe on the basis of the fuel supply amount so that the pressure measured by the sensor reaches a target pressure.SELECTED DRAWING: Figure 1
【課題】船舶の推進用プロペラの回転数の短時間の変動に対応するように、推進用内燃機関に供給する燃料の圧力を精度よく制御する。【解決手段】燃料供給装置は、燃料を加圧する圧縮機と、前記圧縮機の出力端と接続され、前記推進用内燃機関に供給する燃料が流れる主配管と、前記主配管内の加圧した燃料の圧力を計測するセンサと、前記内燃機関に供給する燃料の燃料供給量を制御する第1の制御装置と、前記圧縮機により加圧される燃料の圧力を制御する第2の制御装置と、を備える。前記第2の制御装置は、前記回転主軸の主軸回転数と、船速と、推進用プロペラのピッチの情報に基づいて前記回転主軸に作用するトルクを算出し、前記トルクに対応する前記内燃機関の回転トルクを発生させるための燃料供給量を予測し、前記センサで計測した前記圧力が目標圧力になるように前記燃料供給量に基づいて前記主配管内の燃料の圧力を制御する。【選択図】 図1
FUEL SUPPLY SYSTEM AND MARINE VESSEL
燃料供給装置及び船舶
2016-12-08
Patent
Elektronische Ressource
Japanisch
MARINE VESSEL POWER SUPPLY SYSTEM, MARINE VESSEL AND MARINE VESSEL POWER SUPPLY METHOD
Europäisches Patentamt | 2022
|