MULTI-CYLINDER ENGINE WITH TURBO TYPE SUPERCHARGER

PROBLEM TO BE SOLVED: To improve fuel economy and suppress emission of nitrogen oxide generated by making air fuel ratio lean to the air while increasing output of an engine without generating torque shock by over-supercharging by a turbo type supercharger by setting air fuel ratio of at least one s...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	FUJII MOTOKIMI, YAMAGATA NAOYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION 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 GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To improve fuel economy and suppress emission of nitrogen oxide generated by making air fuel ratio lean to the air while increasing output of an engine without generating torque shock by over-supercharging by a turbo type supercharger by setting air fuel ratio of at least one side cylinder connected to a supercharging exhaust passage in which a turbo type supercharger is installed leaner than theoretical air fuel ratio in a multi-cylinder engine with the turbo type supercharger. SOLUTION: Lean air fuel ratio control is executed to No. 2 cylinder 3b and No. 3 cylinder 3c connected to a turbine of the turbo type supercharger 13. Nitrogen oxide discharged in large quantity by such lean air fuel ratio control is absorbed by NOx absorption catalyst 47. Nitrogen oxide absorbed by NOx absorption catalyst 47 is discharged and purified by executing temporally forced rich control to No. 1 cylinder and No. 4 cylinder not connected to the turbine 32. COPYRIGHT: (C)2006,JPO&NCIPI