Title:
過給内燃機関を作動するための方法
Document Type and Number:
Japanese Patent JP7364741
Kind Code:
B2
Abstract:
A method for operating a supercharged internal combustion engine. Before a cold start of the engine, an electric drive device of an electrically assisted exhaust-gas turbocharger of the engine is activated such that fresh air is compressed by a compressor of the turbocharger and, in the process, is heated and is conveyed via an open overrun air recirculation valve arranged downstream of the compressor, through a short circuit back to a suction side of the compressor of the turbocharger. A proportion of the air that is heated by way of the short-circuit operation of the compressor is, downstream of the compressor and upstream of a closed throttle flap of the engine, conducted via a secondary air system into an exhaust manifold and from there via a wastegate of the turbocharger into the catalytic converters of an exhaust-gas aftertreatment device of the engine.
Inventors:
Frank Turk
Peter Rothenberger
Andreas Weisscher
Lucas Engin
Michael Wessels
Peter Rothenberger
Andreas Weisscher
Lucas Engin
Michael Wessels
Application Number:
JP2022084399A
Publication Date:
October 18, 2023
Filing Date:
May 24, 2022
Export Citation:
Assignee:
Dr. Ing. h.c. F. Porsche Aktiengesellschaft
International Classes:
F02B37/12; F01N3/20; F01N3/22; F01N3/30; F02B29/04; F02B37/04; F02B37/16; F02B37/18; F02D9/02; F02D23/00; F02D43/00; F02M31/04
Domestic Patent References:
| JP2004332715A | ||||
| JP2003307134A |
Foreign References:
| US6637204 |
Attorney, Agent or Firm:
Kenji Teramachi
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