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Title: Laser igniter with integral optimal geometry prechamber

Patent ·
OSTI ID:1496799
;

A laser igniter that avoids autoignition and soot formation within the prechamber and will minimize the formation of Nitrogen Oxides (NO.sub.x). The laser igniter has a laser spark plug with a microlaser and a prechamber integrally formed with the laser spark plug. The prechamber has six nozzle holes with three of the nozzle holes having a large diameter and three of the nozzle holes having a small diameter. The large and small nozzle holes are in a staggered arrangement.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
U.S. Department of Energy (Washington, DC)
Patent Number(s):
10,180,124
Application Number:
15/825,332
OSTI ID:
1496799
Resource Relation:
Patent File Date: 2017 Nov 29
Country of Publication:
United States
Language:
English

References (8)

Laser based ignition system for natural gas reciprocating engines, laser based ignition system having capability to detect successful ignition event; and distributor system for use with high-powered pulsed lasers patent October 2006
Internal combustion engine with auxiliary combustion chamber patent October 2008
Method and system to distribute high-energy pulses to multiple channels patent April 2010
Laser igniter having integral pre-combustion chamber patent August 2010
Development of Advanced Laser Ignition System for Stationary Natural Gas Reciprocating Engines conference November 2008
Composite, all-ceramics, high-peak power Nd:YAG/Cr^4+:YAG monolithic micro-laser with multiple-beam output for engine ignition journal January 2011
On Comparative Performance Testing of Prechamber and Open Chamber Laser Ignition journal August 2011
Laser Ignition: A New Concept to Use and Increase the Potentials of Gas Engines conference November 2008

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