Patent · US Expired

Method and system for adjusting the lambda value

US5014668A · kind A · utility

8Cited by

3References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Martin Klenk · Munich, DE
Ernst Linder · Mühlacker, DE
Winfried Moser · Ludwigsburg, DE

Key dates

Filing date	Nov 15, 1989
Grant date	May 14, 1991
Priority date	—
Expiry date	Nov 15, 2009

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D41/1486
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method and a system for adjusting the lambda value of an air/fuel mixture to be supplied to an internal combustion engine wherein a throttle flap is adjusted in each case in such a manner that lean operation is obtained in a lower load range and a stoichiometric operation (lambda=1) is obtained in an upper load range.

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