Patent · US Active

Heating of an exhaust gas recirculation line during an overrun mode of a combustion unit

US11549453B2 · kind B2 · utility

1Cited by

1References

11Claims

0Family size

Assignee

VOLKSWAGEN AKTIENGESELLSCHAFT · DE

Inventors

Ingo Blei · Braunschweig, DE
Johannes BUNKUS · Barneberg, DE
Stephan Kraus · Oedheim, DE

Key dates

Filing date	Mar 21, 2022
Grant date	Jan 10, 2023
Priority date	—
Expiry date	Mar 21, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating an internal combustion engine, which comprises a combustion unit, a generator coupled with the combustion unit, a fresh gas tract, an exhaust tract, an exhaust gas recirculation line, which branches off of the exhaust tract and opens into the fresh gas tract, and at least one electrical heating device, which is integrated into the exhaust tract or into the exhaust gas recirculation line, characterized in that, during an overrun mode of the combustion unit, the heating device is operated with energy provided by the generator, and exhaust gas heated with the aid of the heating device is partially or completely guided via the exhaust gas recirculation line.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.