Idi?
Posting Guru
Joined: Jan 2003
Posts: 1,412
Likes: 0
From: Munroe falls, Ohio
IDI and DI refer to where the fuel is injected.
Indirect injection: the fuel is injected in a prechamber, ignites and spreads into the main chamber over the piston.
Direct injection: The injection nozzle is placed inside the combustion chamber and the piston incorporates a depression where initial combustion takes place. Direct injection diesel engines are generally more efficient and cleaner than indirect injection engines.
The same applies for gas engines, although there arent many DI gas engine out yet.
Indirect injection: the fuel is injected in a prechamber, ignites and spreads into the main chamber over the piston.
Direct injection: The injection nozzle is placed inside the combustion chamber and the piston incorporates a depression where initial combustion takes place. Direct injection diesel engines are generally more efficient and cleaner than indirect injection engines.
The same applies for gas engines, although there arent many DI gas engine out yet.
Thread Starter
|
Elder User
Joined: Jan 2008
Posts: 825
Likes: 2
From: SW Washington coast
Tanx a bunches ... Simple terms I can understand ... I wonder why they invented the IDI in the first place ... Seems to me that they would have done DI in the first place instead of going to all the trouble to make a diff chamber as well as the bore ... Oh well ...
Posting Guru
Joined: Mar 2005
Posts: 1,701
Likes: 0
From: KY
Direct injection motors are generally louder. Not really the case as much anymore. pre-combustion motors were a thing of the past. The purpose of them were to help with fuel ignition. Back then injection pressures weren't near as high as today and the fuel wouldn't atomize as well. The turbulance chambers that we have in our motors were strictly for noise.
Senior User
Joined: Feb 2007
Posts: 191
Likes: 0
From: Denair, CA
Originally Posted by magusjinx
Tanx a bunches ... Simple terms I can understand ... I wonder why they invented the IDI in the first place ... Seems to me that they would have done DI in the first place instead of going to all the trouble to make a diff chamber as well as the bore ... Oh well ...
Elder User
Joined: Jan 2008
Posts: 576
Likes: 0
From: Central Coast CA
Trending Topics
Thread Starter
|
Elder User
Joined: Jan 2008
Posts: 825
Likes: 2
From: SW Washington coast
I think I will keep my NA IDI diesel ... Sounds like a good thing ... Now I just need to make it a bit more efficient and quieter ...
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
