RECIPROCAL ENGINE SYSTEM AND OPERATING METHOD FOR RECIPROCAL ENGINE

• Main Authors: TAGAI TETSUYA, AIBA HIROKI, MIYAUCHI KENTA, HIROSE TAKAYUKI, MASUDA YUTAKA, MAJIMA YUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 30.01.2024
• Subjects: 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

To further enhance an effect of reduction of emissions of carbon dioxide in a reciprocal engine that uses ammonia as fuel.SOLUTION: A reciprocal engine system includes: a reciprocal engine having a cylinder that forms a combustion chamber, a piston reciprocating in the cylinder, an ammonia fuel supply device for supplying gaseous ammonia to the cylinder for premixing with air and a liquid auxiliary fuel supply device that supplies liquid auxiliary fuel for igniting the ammonia into the cylinder; and a control device that performs a mixed combustion operation using the ammonia and the liquid auxiliary fuel while a compression end temperature in the cylinder is equal to or higher than a predetermined temperature that prevents combustion delay of the ammonia.SELECTED DRAWING: Figure 7 【課題】アンモニアを燃料として用いるレシプロエンジンにおいて、二酸化炭素の排出削減の効果をより大きくすることを目的とする。【解決手段】このレシプロエンジンシステムは、燃焼室を形成するシリンダと、前記シリンダ内を往復移動するピストンと、前記シリンダに気体のアンモニアを供給し空気と予混合させるアンモニア燃料供給装置と、前記シリンダ内に前記アンモニアを着火させる液体補助燃料を供給する液体補助燃料供給装置と、を有するレシプロエンジンと、前記シリンダ内の圧縮端温度が前記アンモニアの燃焼遅れが生じない所定の温度以上の状態で、前記アンモニアと前記液体補助燃料による混焼運転を行う制御装置と、を備える。【選択図】図７