Abgasnachbehandlungssystem und Verfahren zum Vorheizen eines Katalytischen Konverters

Details

Veröffentlichungs-Nr.

EP4191032

Aktenzeichen

EP21212104

Anmeldetag

2. Dezember 2021

Veröffentlichung

26. März 2025

Erteilung

26. März 2025

Rechtsraum

EP

IPC

F01N3/20

Abstract

An exhaust after treatment system (100, 200, 300) for a vehicle comprises an exhaust outlet pipe (1a, 1b), having a first end (2) that is connectable to a vehicle engine (30), for receiving exhaust gases from said vehicle engine, and having an outlet opening at a second end (3), arranged to eject the outlet gases, a catalytic converter (4, 6), connected to the exhaust outlet pipe (1a, 1b); and an electric heater element (5) which is in heat conducting contact with the catalytic converter (4, 6) and adapted for pre-heating the catalytic converter (4, 6). The heater element (4, 6) is positioned downstream of the catalytic converter (4,6) with respect to the first end (2). Upon the vehicle being started, the heater element (5) is switched on and gases are flown from the second end (3), in the direction of the first end (2) of the exhaust outlet pipe (1a, 1b), through the catalytic converter (4, 6) for a pre-set period of time prior to passing exhaust gases from the engine (30) towards the outlet opening at the second end (3).

Anmelder

Firma

Volvo Car Corporation

Land

🇸🇪 Schweden

Fachgebiete