Cylinder head for an internal combustion engine and method for the production thereof

US11835013B2 · kind B2 · utility

Assignee

• MAN Truck & Bus SE · DE

Inventors

• Steffen Hirschmann · Neustadt an der Aisch, DE
• Thomas Malischewski · Heilsbronn, DE

Key dates

• Filing date: Aug 30, 2019
• Grant date: Dec 5, 2023
• Expiry date: Aug 30, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02F2001/244
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

The disclosure relates to a cylinder head for covering a combustion chamber of an internal combustion engine. The cylinder head comprises at least one material recess for heat isolation, which is formed in a main body of the cylinder head and is arranged between a fluid-guide channel and a cooling channel. The material recess can be produced e.g. directly during the shaping (e.g. casting or pressing) of the cylinder head and/or thereafter. For example, in the event that exhaust gas is guided through the fluid-guide channel, a significantly lower heat input occurs from the hot exhaust gas into the cooling fluid. In addition, the thermal decoupling via the material recess leads to the hot exhaust gas cooling to a lesser degree in the fluid-guide channel.