2011 LML Duramax Diesel Engine - Inside The 2011 LML Duramax
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Joined: May 2007
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2011 LML Duramax Diesel Engine - Inside The 2011 LML Duramax
2011 LML Duramax Diesel Engine - Inside The 2011 LML Duramax
Now With Urea Injection And Nine InjectorsAutomotive manufacturing history includes two brutal horsepower wars. The first involved gasoline engines and started when the GI's returned home from WWII. It ended with the 1973 oil crisis. This oil embargo gave birth to the next slow-starting and fierce-ending feud, which we are all veterans of-the diesel horsepower wars. Notice how power levels have recently leveled off? It's because in 2010, manufacturers need to address what's coming out the tailpipe just as much as they have to worry about what numbers the engine makes. Since we're optimistic and believe the past is a guide, we predict we'll see the emissions restrictions turn into a catalyst for better performing diesel engines. Fortunately for us, a world without problems is a very boring place for engineers.
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Now With Urea Injection And Nine InjectorsAutomotive manufacturing history includes two brutal horsepower wars. The first involved gasoline engines and started when the GI's returned home from WWII. It ended with the 1973 oil crisis. This oil embargo gave birth to the next slow-starting and fierce-ending feud, which we are all veterans of-the diesel horsepower wars. Notice how power levels have recently leveled off? It's because in 2010, manufacturers need to address what's coming out the tailpipe just as much as they have to worry about what numbers the engine makes. Since we're optimistic and believe the past is a guide, we predict we'll see the emissions restrictions turn into a catalyst for better performing diesel engines. Fortunately for us, a world without problems is a very boring place for engineers.
More...
Last edited by Jazz; Feb 9, 2010 at 06:23 AM.
Diesel Bomber
Joined: Mar 2007
Posts: 3,910
Likes: 335
From: Capo Beach, CA
I was wondering why they weren't using the exhaust fuel injection event like Cummins uses.
I don't know if I buy the "more precise setup" part, but I find the "Diesel in the oil" explanation intriguing. Have there been active-regen-related oil contamination problems that I have not been aware of?
The good news with the downpipe injector is that you can easily hijack it for a built-in flame thrower exhaust.
GM added a ninth injector after the turbo to supply the fuel needed to create heat that will burn off the emissions built up in the exhaust aftertreatment system. A major benefit of this new system includes not having to deal with oil dilution, which results from biodiesel or regular diesel going past the piston rings and getting into the crankcase. In addition, fuel economy should improve with this more precise setup.
The good news with the downpipe injector is that you can easily hijack it for a built-in flame thrower exhaust.
