Patent · US Active

Laser spark plug and cleaning method for same

US9982651B2 · kind B2 · utility

0Cited by

0References

16Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Pascal Woerner · Ditzingen, DE
Joerg Engelhardt · Ditzingen, DE
Martin Weinrotter · Stuttgart, DE

Key dates

Filing date	May 29, 2012
Grant date	May 29, 2018
Priority date	—
Expiry date	Sep 12, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49229
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A laser spark plug, in particular for an internal combustion engine, having a combustion chamber window through which laser radiation may be emitted from an interior of the laser spark plug toward an exterior, the laser spark plug having a component which surrounds at least part of the beam path of the laser radiation in the area of the exterior. In particular, the laser spark plug, in the area of the component, has at least one channel which has at least two orifice sections and which allows fluid communication between the orifice sections, a first orifice section being situated in the area of an outer surface of the combustion chamber window, and a second orifice section being situated in a radially outer area of the laser spark plug, in particular of the component.

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