Patent · US Active

Piston for an internal combustion engine

US11719186B2 · kind B2 · utility

0Cited by

10References

19Claims

0Family size

Assignee

MAN Truck & Bus SE · DE

Inventors

Thomas Malischewski · Heilsbronn, DE
Jens Dietrich · Heilsbronn, DE
Daniel Zülow · Feucht, DE

Key dates

Filing date	Sep 16, 2019
Grant date	Aug 8, 2023
Priority date	—
Expiry date	Sep 16, 2039

Classification

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

Abstract

The present disclosure relates to a piston for an internal combustion engine. The piston comprises a cover which at least partially covers a piston basehead of the piston. A heat-isolating air gap is formed between the cover and the piston basehead, which is fluidically connected to a combustion chamber and/or an upper side of the cover facing away from the heat-isolating air gap. The fluidic connection permits a fluid exchange to take place between the heat-isolating air gap and the combustion chamber. In this way, a pressure gradient can be reduced between the combustion chamber and the heat-isolating air gap. As a result, the cover is/can be kept thin without being deformed during combustion.

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