MARINE DIESEL ENGINE

To directly inject urea water into a combustion chamber without causing lack of space for installing components.SOLUTION: A marine diesel engine 1 includes a cylinder 16 defining a combustion chamber 17, an exhaust valve 18 provided in a cylinder cover 15 defining a ceiling plane of the combustion c...

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Bibliographische Detailangaben
Hauptverfasser:	EDO KOJI, ITO KAZUHISA
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CONTROLLING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF WEAPONS
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Beschreibung
Zusammenfassung:	To directly inject urea water into a combustion chamber without causing lack of space for installing components.SOLUTION: A marine diesel engine 1 includes a cylinder 16 defining a combustion chamber 17, an exhaust valve 18 provided in a cylinder cover 15 defining a ceiling plane of the combustion chamber 17 and opening and closing the combustion chamber 17, and a plurality of fuel injection valves 30 provided in the cylinder cover 15. The fuel injection valves 30 are arranged along a circumferential direction of the cylinder 16 so as to surround the exhaust valve 18. All of the fuel injection valves 30 are constituted to inject fuel and urea water in layers.SELECTED DRAWING: Figure 3 【課題】部品を配置するためのスペースを不足させることなく、燃焼室内に尿素水を直接噴射する。【解決手段】舶用ディーゼルエンジン１は、燃焼室１７を区画するシリンダ１６と、燃焼室１７の天井面を区画するシリンダカバー１５に設けられ、該燃焼室１７を開閉する排気弁１８と、シリンダカバー１５に設けられた複数の燃料噴射弁３０と、を備える。複数の燃料噴射弁３０は、シリンダ１６の周方向に沿って、排気弁１８を取り囲むように配置される。複数の燃料噴射弁３０は、いずれも、燃料と尿素水とを層状に噴射するように構成されている。【選択図】図３