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![](https://webarchive.library.unt.edu/eot2008/20090120131128im_/http://www.netl.doe.gov/images/double-line.gif)
Releases and Briefs
Laser Ignition for Lean-Burn Engines
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Researchers
at the National Energy
Technology Laboratory have successfully operated a
laser-spark lean-burn natural gas reciprocating engine. Development of
lean-burn engines is driven by demand for higher efficiencies and lower
emissions, but delivering the high energy required to ignite an ultra-lean
mixture destroys even the hardiest spark plugs. Plug durability is rapidly
becoming a barrier issue. According to team leader Mike McMillian,
laser-spark ignition solves heat loss problems and provides focused energy
capable of ignition even under ultra-lean conditions unignitable with
conventional systems. |
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