Invention Grant
- Patent Title: Method for heating an exhaust gas aftertreatment component, and internal combustion engine
-
Application No.: US18099843Application Date: 2023-01-20
-
Publication No.: US11976604B2Publication Date: 2024-05-07
- Inventor: Christopher Gessenhardt , Sven Brannys , Sergej Jakovlev
- Applicant: Volkswagen Aktiengesellschaft
- Applicant Address: DE Wolfsburg
- Assignee: Volkswagen Aktiengesellschaft
- Current Assignee: Volkswagen Aktiengesellschaft
- Current Assignee Address: DE Wolfsburg
- Agency: Muncy , Geissler, Olds & Lowe, P.C.
- Priority: DE 2022101345.6 2022.01.21
- Main IPC: F02D41/06
- IPC: F02D41/06 ; F01N3/20 ; F02D13/02 ; F02D41/02 ; F02D41/00

Abstract:
A method for heating an exhaust gas aftertreatment component in an exhaust system of an internal combustion engine. At the combustion chamber, a fuel injector for injecting a fuel into the combustion chamber and a spark plug for igniting a flammable fuel-air mixture are arranged. The internal combustion engine has a valve lift curve switching mechanism, which allows for a shift and/or change of the opening times of the exhaust valve. The method includes: intake of fresh air into the combustion chamber, injection of a fuel into the combustion chamber, ignition of an ignitable fuel-air mixture in the combustion chamber when the piston is in a range of 10° KW to 30° KW after the upper ignition dead point, and opening of the exhaust valve when the piston is in a range of 55° KW to 95° KW after the upper ignition dead point.
Public/Granted literature
- US20230235712A1 METHOD FOR HEATING AN EXHAUST GAS AFTERTREATMENT COMPONENT, AND INTERNAL COMBUSTION ENGINE Public/Granted day:2023-07-27
Information query