Patent · US Active

Procedure for the operation of an internal combustion engine

US7680584B2 · kind B2 · utility

5Cited by

5References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Roland Karrelmeyer · Bietigheim-Bissingen, DE
Christina Sauer · Memmingen, DE
Wolfgang Fischer · Eppelheim, DE
Andre F. Casal Kulzer · Eppelheim, DE
Juergen Haering · Stuttgart, DE

Key dates

Filing date	Jul 25, 2007
Grant date	Mar 16, 2010
Priority date	—
Expiry date	Nov 27, 2027

Classification

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

Abstract

A method of operating an internal combustion engine with direct gasoline injection and controlled self-ignition, wherein the internal combustion engine includes a combustion chamber, at least one intake valve and at least one exhaust valve each having an adjustable opening time. The method includes compressing an ignitable gas mixture that contains residual gas in the combustion chamber during a compression stroke, where the gas mixture self ignites, and altering step-wise over multiple combustion cycles at least one of a residual gas volume and a point of injection time to an interim value other than a value assigned to a target load during a load transfer from an initial load to the target load.

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