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1. (WO2016058739) CHARGING DEVICE FOR AN INTERNAL COMBUSTION ENGINE AND OPERATING METHOD FOR THE CHARGING DEVICE

Pub. No.:    WO/2016/058739    International Application No.:    PCT/EP2015/069602
Publication Date: Fri Apr 22 01:59:59 CEST 2016 International Filing Date: Fri Aug 28 01:59:59 CEST 2015
IPC: F02B 37/10
F02B 39/10
Applicants: CONTINENTAL AUTOMOTIVE GMBH
Inventors: ZHANG, Hong
BENDER, Werner
Title: CHARGING DEVICE FOR AN INTERNAL COMBUSTION ENGINE AND OPERATING METHOD FOR THE CHARGING DEVICE
Abstract:
The invention relates to a charging device and to an operating method for said charging device for an internal combustion engine (1), which has an exhaust turbocharger (4) and a recuperation charger (12), which has a compressor turbine (13) and an electromechanical motor-generator (14) coupled thereto. The high pressure side (HD) of the compressor turbine (13) can be connected, by means of a valve arrangement, to the outside air supply line (7) before the exhaust turbocharger (4) on one side and, on the other side, to the charge air supply line (8) after the exhaust turbocharger (4), wherein outside air can be suctioned or charge air blasted via the low pressure side (ND) of the compressor turbine. The aforementioned recuperation charger (12) can be changed over, by means of a valve arrangement and the motor-generator, between a standard operating mode, an amplifier operating mode and a recuperation operating mode, wherein the recuperation charger operates on one side in the amplifier operating mode, driven by the motor-generator (14), as a compressor for pressure increase in the outside air supply line (8) or, on the other side, driven by the charge air flow, acts as a turbine for energy recovery by means of the motor-generator (14), or is operable neutrally.