Patent · US Active

Method for operating an internal combustion engine and internal combustion engine

US9506410B2 · kind B2 · utility

0Cited by

4References

15Claims

0Family size

Assignee

AUDI AG · DE

Inventors

Ralf Budack · Ingolstadt, DE
Michael Kuhn · Knoxville, US
Peter Senft · Rieden, DE

Key dates

Filing date	Jan 28, 2013
Grant date	Nov 29, 2016
Priority date	—
Expiry date	Jan 28, 2034

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/30
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating an internal combustion engine includes a fuel supply device for at least one first and one second fuel, wherein the internal combustion engine has at least one cylinder which includes at least one intake valve and into which air, in particular fresh air, can be supplied via an intake pipe. In a first operating mode of the internal combustion engine, the first fuel is introduced only into the intake pipe, and in a second operating mode, the second fuel is exclusively introduced directly into the cylinder, and in the second operating mode an intake valve opening time period is adjusted to be shorter than in the first operating mode.

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