Patent · US Expired

Method for operating an internal combustion engine, and an internal combustion engine

US5924411A · kind A · utility

4Cited by

11References

27Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Herbert Guettle · Langenau, DE
Martin Hartweg · Erbach, DE
Eberhard Holder · Eßlingen, DE
Herbert Klein · Kiel, DE

Key dates

Filing date	Sep 19, 1997
Grant date	Jul 20, 1999
Priority date	—
Expiry date	Sep 19, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method operates an improved internal combustion engine by heating the fuel before entry into the cylinder, at least during the cold-start phase of the engine. In order to undertake the heating step in a favorable way, at least areas in the region of an intake valve are irradiated with an electromagnetic radiation of radiation source, and thereby heated without contact. As a result, liquid fuel in the valve region is heated by contact with the areas of the valve region, and condensation of the fuel is at least reduced.

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