Systems and methods for an engine

• Main Author: Gokhale Manoj
• Format: Patent
• Language: English
• Published: 02.08.2016
• 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; LOCOMOTIVES; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; MOTOR RAILCARS; PERFORMING OPERATIONS; RAILWAYS; STEAM ENGINES; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; WEAPONS

Methods and systems for an engine are provided. In one example, a system for an engine comprises an exhaust passage through which exhaust gas is configured to flow from the engine, a turbocharger with a turbine positioned in the exhaust passage, an exhaust gas treatment system disposed in the exhaust passage upstream of the turbine and including at least one exhaust gas treatment device and a bypass with a bypass valve, the bypass valve configured to be adjusted to reduce exhaust gas flow through the exhaust gas treatment system in response to a transient engine operating condition, and an exhaust gas recirculation system coupled between the exhaust passage and an intake passage of the engine, the exhaust gas recirculation system including an exhaust gas recirculation passage and at least one exhaust gas recirculation valve, an inlet of the exhaust gas recirculation system positioned upstream of the exhaust gas treatment system.