Patent · US Active

Internal combustion engine and method for operating an internal combustion engine by means of a laser ignition unit

US7765980B2 · kind B2 · utility

6Cited by

0References

24Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Manfred Vogel · Ditzingen, DE
Werner Herden · Gerlingen, DE
Heiko Ridderbusch · Schwieberdingen, DE

Key dates

Filing date	Sep 26, 2006
Grant date	Aug 3, 2010
Priority date	—
Expiry date	Nov 8, 2026

Classification

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

Abstract

The invention relates to a method for operating an internal combustion engine including a fuel-injection unit and a laser ignition-unit. According to the invention, during a compression cycle of the internal combustion engine, fuel is injected into the combustion chamber by means of the fuel-injection unit in such a way that an ignitable, round, flat mixed region of fuel and air forms on a plunger and a predetermined period elapses between the end of the fuel injection and the start of ignition in order to form the round flat mixed region. Ignition then takes place within the flat round mixed region by means of the laser-ignition unit.

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