Internal combustion engine for a motor vehicle, and method for operating such an internal combustion engine

US11280279B2 · kind B2 · utility

Assignee

• Daimler AG · DE

Inventors

• Franz Huber · Tauberbischofsheim, DE
• Christian Lorenz · Hamburg, DE
• Jochen Hufendiek · Stuttgart, DE
• Johannes Ernst · Baden-Baden, DE

Key dates

• Filing date: Nov 16, 2018
• Grant date: Mar 22, 2022
• Expiry date: Nov 16, 2038

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D2041/001
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

An internal combustion engine for a motor vehicle includes a combustion chamber with a gas exchange valve which is movable between an open position and a first closed position. The gas exchange valve is movable on its path from the open position in a direction of the first closed position into an intermediate position located between the open position and the first closed position and is holdable in the intermediate position at least during a part of a compression cycle of the combustion chamber following the open position of the gas exchange valve and is movable into a second closed position following the intermediate position. The part comprises more than a half of the compression cycle and less than a whole of the compression cycle. The gas exchange valve is an inlet valve via which the combustion chamber is supplyable at least with air.