Diesel, Without the Diesel = Mercedes 'DiesOtto'

[ikcandco]

'Diesel, without the diesel ? Hummmm ? !'
»»»»»»»»» Mercedes-Benz debuts 'DiesOtto'
»»»»»»»»» 'NewellClassic.com' ««««««~»»»»»» 'NewellClassic.com' «««««««««
« ~ » Diesel technology has improved by leaps and bounds, but the trouble is, it still runs on
diesel. In the American market finding a diesel pump is still a pain compared to filling up with
conventional gasoline. Mercedes-Benz says it's found the solution with a new developmental
powertrain concept it calls DiesOtto.

Rather than actually running on diesel, the DiesOtto engine is said to incorporate the benefits
of a diesel engine, but runs on regular old unleaded.
»»»»»»»»» 'NewellClassic.com' ««««««~»»»»»» 'NewellClassic.com' «««««««««
« ~ » Mercedes hasn't put a timeline on producing and marketing a powertrain based on the
DiesOtto prototype, but says it's a "feasible proposition in the midterm".
»»»»»»»»» 'NewellClassic.com' ««««««~»»»»»» 'NewellClassic.com' «««««««««
Title : 'Mercedes-Benz Rolls Out a Cross Between a Gas and Diesel Engine'
Date posted: 07-24-2007 @ Edmunds' Inside Line
For the 'Complete Story' «CLICK HERE»
»»»»»»»»» 'NewellClassic.com' ««««««~»»»»»» 'NewellClassic.com' «««««««««
The article from MIT's Technology Review says several automakers are currently researching
HCCI engines, Mercedes is call DiesOtto.

Volvo has been testing an engine that can switch between spark ignition and HCCI.
HCCI = Air & fuel are mixed, injected into cylinder, then ignited by pressure from the piston.

MIT researchers say HCCI cleaner, more efficient engine.
»»»»»»»»» 'NewellClassic.com' ««««««~»»»»»» 'NewellClassic.com' «««««««««
Who Knows . . .
'One of These Days, in Future Newells, we just might see a 'Mercedes Running on Regular
Old Unleaded' instead of a 'Diesel Cat !'
"Ain't done yet ! Well, we'll wait and . . . see ! ! !"
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May God Bless
KC
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Source: Edmunds' Inside Line

[ikcandco]

Now, How About That !
»»»»»»»»»»»»»'GM's HCCI Engine'
»»»»»»»»»»»»» 'NewellClassic.com' 'Nears Reality'
»»»»»»»»»»»»» 'NewellClassic.com' ««««««~»»»»»» 'NewellClassic.com' «««««««««««««
« ~ » GM officials weren't talking about when the engine would actually make it into production vehicles.
But last week they let select journalists drive a Saturn Aura and an Opel Vectra, each outfitted with a
homogenous charge compression ignition engine.

« ~ » The technology has been kicking around for some 30 years and automakers have been developing
their own versions of it.

« ~ » It promises to deliver the efficiency (fuel economy) of a diesel engine with the emissions of a
typical gasoline engine. It accomplishes this magic because fuel is homogeneously premixed with air,
but it uses a high proportion of air to fuel. When the piston reaches its highest point, this lean fuel/air
mixture spontaneously ignites from compression heating, as in a diesel engine.

« ~ » HCCI engines burn cooler than spark-ignited and diesel engines. Lower temperature combustion
considerably reduces the emissions of nitrogen oxide and particulate matter.

« ~ » Several challenges have kept the technology from becoming commercially viable. Because the HCCI
engine does not have a combustion trigger such as a spark plug, the engine has been limited in the
speeds and loads it can it can manage. Yet GM's invited journalists report that they were able to get two
drivable concept vehicles, a 2007 Saturn Aura and Opel Vectra up to highways speeds easily enough.
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May God Bless
KC
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Source: Autoweek