ENGINE WITH SUPERCHARGER

• Main Authors: MORISANE KENICHI, ARAKI KEIJI
• Format: Patent
• Language: English; Japanese
• Published: 13.06.2019
• 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 attain both of fuel economy performance and acceleration performance in acceleration of a vehicle.SOLUTION: An engine with a supercharger comprises: an engine body 10; a first injector 38 configured to supply fuel into a cylinder 30a; an electric supercharger 18; a high-pressure EGR passage 80; a second injector 81 configured to supply fuel to the high-pressure EGR passage 80; a reforming catalyst 82 configured to reform fuel supplied from the second injector 81; and a control unit (PCM 100) configured to supply, into the cylinder 30a, fuel reformed by the reforming catalyst 82 in acceleration of a vehicle, and adjust a suction amount supplied into the cylinder 30a by the electric supercharger 18 so that an air-fuel ratio A/F of mixture is larger than 15.SELECTED DRAWING: Figure 8 【課題】車両の加速時に、燃費性能と加速性能を両立させる。【解決手段】過給機付エンジンは、エンジン本体１０と、気筒３０ａ内へと燃料を供給する第１インジェクタ３８と、電動式過給機１８と、高圧ＥＧＲ通路８０と、高圧ＥＧＲ通路８０へと燃料を供給する第２インジェクタ８１と、第２インジェクタ８１から供給された燃料を改質する改質触媒８２と、車両の加速時に、改質触媒８２によって改質された燃料を気筒３０ａ内へと供給するとともに、混合気の空燃比Ａ／Ｆが１５よりも大きくなるように、電動式過給機１８によって気筒３０ａ内へと供給される吸気量を調整する制御部（ＰＣＭ１００）と、を備えている。【選択図】図８