Patent · US Active

Method for operating an internal combustion engine

US11885256B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

MAN Truck & Bus SE · DE

Inventors

Bruno Barciela Díaz-Blanco · Munich, DE
Thomas Malischewski · Heilsbronn, DE
Steffen Hirschmann · Neustadt an der Aisch, DE
Dominic Hyna · Fürth, DE
Daniel Zülow · Feucht, DE

Key dates

Filing date	Mar 16, 2020
Grant date	Jan 30, 2024
Priority date	—
Expiry date	Dec 10, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating an internal combustion engine including feeding a pilot quantity of gas fuel, into a prechamber before a piston reaches a top dead center position. The method comprises autoignition of the pilot quantity of gas fuel in the prechamber, feeding a main quantity of gas fuel into the prechamber after the autoignition, and ignition of the main quantity of gas fuel by the conditions in the prechamber that are brought about by the autoignited pilot quantity. The method makes it possible to operate an internal combustion engine purely with methane or some other gaseous fuel, by means of compression autoignition of the pilot quantity.

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