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1. (WO2013148046) METHODS AND SYSTEMS FOR AN ENGINE

Pub. No.:    WO/2013/148046    International Application No.:    PCT/US2013/028128
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Fri Mar 01 00:59:59 CET 2013
IPC: F01N 9/00
F02B 37/18
F02B 37/24
F02B 39/12
F01N 3/023
Applicants: GENERAL ELECTRIC COMPANY
Inventors: MISCHLER, James, Robert
PRIMUS, Roy
Title: METHODS AND SYSTEMS FOR AN ENGINE
Abstract:
Various methods and systems are provided for an engine system for a vehicle. In one example, the engine system includes a turbocharger including a turbine, the turbocharger configured to be driven via exhaust gas from an engine during a turbocharger mode and via the exhaust gas from the engine and mechanical output from the engine during a supercharger mode. The engine system further includes a bypass control element to decrease an amount of energy extracted from exhaust flow through the turbine in a regeneration mode of operation and to increase an amount of energy extracted from exhaust flow through the turbine during a non-regeneration mode of operation, and an aftertreatment system disposed downstream of the turbocharger and including a particulate filter.