Why are all commercial diesels "turbodiesels"?
#1
Why are all commercial diesels "turbodiesels"?
Hey guys, I have a quick question. Nearly every Diesel engine made for commercial trucks ( 3/4 ton and 1 ton trucks) have Forced Induction. The only 3 I can think of that don't are the 6.9L/7.3L IDI and the 6.2L Detroit diesel in the CUCVs and Hummers. Why is it that forced induction is so needed on diesels compared to gas engines? I've been in one gas car that had a turbo and that was an F150 EcoBoost.
Is forced induction just way more effective on Diesel engines?
Is forced induction just way more effective on Diesel engines?
#2
#3
Originally Posted by Mark Kovalsky
Yes it is.
Diesels can run lean, and forcing in more air with forced induction can cause lean conditions. That's a problem in gas engines, but just makes for cleaner combustion in a diesel.
Diesels can run lean, and forcing in more air with forced induction can cause lean conditions. That's a problem in gas engines, but just makes for cleaner combustion in a diesel.
#4
It allows more power to be made under the strict NOx and particulate limits the EPA has set.
Diesels make power by adding fuel. After about 10-11:1 a/f ratio, you get smoke rather than more power. More air means more fuel which means more power. Diesels are also built heavier to begin with, so they can take boost without any issues within reason.
Diesels make power by adding fuel. After about 10-11:1 a/f ratio, you get smoke rather than more power. More air means more fuel which means more power. Diesels are also built heavier to begin with, so they can take boost without any issues within reason.
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#9
The first turbocharged Diesel truck was produced by Schweizer Maschinenfabrik Saurer (Swiss Machine Works Saurer) in 1938.[
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