ENGINE WITH SUPERCHARGER

• Main Authors: MATSUMOTO TAKAMASA, YAMAGATA NAOYUKI, MIYAWAKI HIROKI
• Format: Patent
• Language: English; Japanese
• Published: 11.10.2021
• 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; WEAPONS

To quickly finish the regeneration of a DPF, in an engine with a supercharger.SOLUTION: An engine 2 with a supercharger comprises: a fuel injection valve (injector 21); an electric supercharger 5; an exhaust emission control device 6 arranged at an exhaust passage 32, and including a filter device; a position adjustment device (ISG 56) for stopping a piston in a cylinder within a prescribed range for a restart at an automatic stop of the engine; and a control unit (ECU 100). When an automatic stop condition is established during the regeneration of the filter device, the control unit stops a piston in a specified cylinder within a range of an overlapped state that both an intake valve and an exhaust valve are valve-opened, and continues the regeneration of the filter device by driving the electric supercharger, and injecting fuel into the specified cylinder during the automatic stop of the engine.SELECTED DRAWING: Figure 1 【課題】過給機付きエンジンにおいて、ＤＰＦの再生を速やかに完了させる。【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、電動過給機５と、排気通路３２に設けられた、フィルタ装置を含む排気浄化装置６と、エンジンの自動停止時に、気筒内のピストンを、再始動のための所定の範囲に停止させる位置調整装置（ＩＳＧ５６）と、制御ユニット（ＥＣＵ１００）と、を備えている。制御ユニットは、フィルタ装置の再生中に、自動停止条件が成立した場合、特定の気筒内のピストンを、吸気弁及び排気弁が共に開弁したオーバーラップ状態となる範囲に停止させると共に、エンジンの自動停止中に、電動過給機の駆動と、特定の気筒内への燃料の噴射とを行うことで、フィルタ装置の再生を継続させる。【選択図】図１