Patent · US Expired

Method for enlarging the control range for equalizing injection quantity differences

US7293545B2 · kind B2 · utility

3Cited by

4References

21Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Roland Dietl · Straubing, DE
Oliver Kastner · Donaustauf, DE
Hans-Peter Rabl · Kelheim, DE

Key dates

Filing date	Jan 13, 2006
Grant date	Nov 13, 2007
Priority date	—
Expiry date	Feb 5, 2026

Classification

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

Abstract

In a method for enlarging the control range for equalizing injection quantity differences, in particular in internal combustion engines using multiple injections, if the maximum injection quantity of all the individual injections of an injector of the internal combustion engine is lower than the minimum quantity required for control for equalizing the cylinders, then the injection pattern is changed such that the injection quantity of at least one individual injection is greater than or equal to the required minimum quantity, without changing the torque output of the internal combustion engine.

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