Patent · US Active

Laser spark plug

US8459222B2 · kind B2 · utility

7Cited by

12References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Martin Weinrotter · Stuttgart, DE
Pascal Woerner · Ditzingen, DE
Juergen Raimann · Weil der Stadt, DE
Joerg Engelhardt · Ditzingen, DE

Key dates

Filing date	Dec 11, 2012
Grant date	Jun 11, 2013
Priority date	—
Expiry date	Dec 11, 2032

Classification

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

Abstract

A laser spark plug device for an internal combustion engine includes a prechamber for receiving an ignitable medium and at least one overflow channel providing a fluid connection between an internal space of the prechamber and an external space surrounding the prechamber. The at least one overflow channel is configured such that when a fluid flows through the overflow channel into the internal space of the prechamber, the result is a fluid flow having at least one eddy which rotates on an eddy axis forming an angle of more than approximately 45° with a longitudinal axis of the laser spark plug device.

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