ENGINE WITH SUPERCHARGER

• Main Authors: MATSUMOTO TAKAMASA, YAMAGATA NAOYUKI, MIYAWAKI HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 13.09.2021
• 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 provide an engine with a supercharger capable of both improving exhaust emission control performance and improving supercharging response.SOLUTION: An engine 2 with a supercharger comprises a fuel injection valve (injector 21), an exhaust emission control device 6 provided in an exhaust passage of the engine, and a turbine 42 of an exhaust turbocharger 4 provided on the downstream side with respect to the exhaust emission control device in the exhaust passage, and a control unit (ECU) that outputs a control signal to a control target. The control unit causes the fuel injection valve to execute fuel injection during an exhaust stroke after the main injection to the engine, when a vehicle is accelerating as an accelerator opening increases.SELECTED DRAWING: Figure 1 【課題】排気の浄化性能の向上と、過給レスポンスの向上とを両立させる過給機付きエンジンを提供する。【解決手段】過給機付きエンジン２は、燃料噴射弁（インジェクタ２１）と、エンジンの排気通路に設けられた排気浄化装置６と、排気通路において、排気浄化装置よりも下流に設けられた、排気ターボ過給機４のタービン４２と、制御対象に制御信号を出力する制御ユニット（ＥＣＵ）と、を備える。制御ユニットは、アクセル開度の増加に伴う車両加速時に、エンジンへの主噴射の後に、排気行程中の燃料噴射を燃料噴射弁に実行させる。【選択図】図１