INTERNAL COMBUSTION ENGINE WITH TURBOCHARGER

• Main Author: KAWAMOTO KEIJI
• Format: Patent
• Language: English
• Published: 13.06.2003
• Edition: 7
• Subjects: 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

PROBLEM TO BE SOLVED: To prevent any oil leakage from a center housing by maintaining the number of rotation of a turbocharger in a predetermined range when activating a catalyst by bypassing a turbine of a turbocharger. SOLUTION: When the catalyst temperature Tcat is lower than the predetermined temperature T0, and the catalyst must be heated (S7), the exhaust emission is allowed to flow via a bypass passage to bypass the turbine of the turbocharger, and the exhaust emission of large calorie is fed to the catalyst. When the number of rotation Nt of the turbocharger is smaller than the predetermined lower limit number of rotation Nmin (S8), the bypassing is prohibited (S10), and the quantity of exhaust emission flowing into the turbine is increased to maintain the rotation of the turbocharger. COPYRIGHT: (C)2003,JPO