What is Common Rail Fuel Injection? 🔧

What is a common rail diesel injection system? Everything from the CP3 to the injectors themselves, Wade lets you know in this video what each part does for your common rail system. He also shows you how to speak common rail diesel fuel terminology.

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Chapters
0:00 Common Rail Fuel Injection
0:30 What Is Common Rail?
2:42 Why Does It Exist?
4:17 Common Rail Acronyms

#cummins #commonrail #thoroughbreddiesel #dieselpower #diesellife #dieselporn #truckporn

[ajingolk]

The common rail is like an air compressor but inplace air fuel is compressed once it rich a specific pressure it cutoff then this compressed fuel is feed to the injectors which are controlled with a ECU.

[c]

Wade, Thanks for the great wealth of information you put forth in the Diesel University videos.
Lots of info for the length of each video, Good work, Thanks

[henryattfield]

My grandad invented this at Perkins, he was the head engineer, got an OBE for it

[kennethtomaszewski]

From heui to common rail, amazing how making things more simple works

[isaacasare]

Good work, thank u very much
I have now understood how a common rail system works.

[richardwelkiv]

So first let me say thank you for the video, Second I want to apologize right up front for my terminology or lack there of . Here goes . It seems to me that the injection pump is now just a high pressure pump which supplies fuel to the injectors all the same consistently . What I think happens next is the injectors are electronically operated when to open from some sort of command module . Compared to my p7100 pump which each injector has an individual line from the pump to the injector and then probably has some type of distributor mechanism these modern pumps only have to supply fuel to common rail and from there the injectors get there instructions from a computer ( I think ) . Though this greatly simplifies the responsibilities of the pump the weak link here to me is the computer for if it does not send out the right signal at the right time I don't think it could be good . Am I close here ??

[nickpierpoint]

Good explanation my friend, Watching you from Oxford, England!

[esb]

Hello I have a 2006 dodge 2500 5.9 and I been having this problem so start the truck starts normal when I start driving I feel like it stops accelerating 2 or 3 seconds and it resumes accelerating it does this a few times once I get to 40 or 50 mph drives normal but if I spot at are’s light or I get traffic in the highway it does the same thing replace fuel filter then replace fuel pump and it still doing it I gladly appreciate any help thanks.

[JerichoRally]

Your demo rail, the one for the 5.9... it only has 1 injector connected. Where do the other injectors connect?
I see the 5 other ports on the rail but I guess I just expected all the injector ports to be in a row. (I'm making the assumption that the 5.9 is a 6cyl)

[jellybeanjellybean-tnlm]

We have a manlift that shutdown abruptly while in use. After that, it did not starting anymore, just cranking(with enough diesel). Its engine is Deutz TCD 2.9 L4. What could be the problem? Could you also point the locations of certain parts(names) of the engine? Hoping to help me out on this problem. Thank you and more power.

[davisnkoba]

Does common rail have chamber in its pipe

[stevewaclo]

Hey Wade, an excellent overview of common rail injection systems but I disagree the "injector is the brain". As I believe you will agree (on second thought 😀?), an injector only does what it's told, in the case of my LB7, by the Fuel Injection Control Module, itself with instructions from the Engine Control Unit. Looking forward to future installments!

[gopalakrishnadoddi]

good afternoon sir i have a small doubt how much voltage is given to crdi fuel injector p;ease inform me thank you sir

[serutukanatukana]

I've going through a problem, where the fuel rail return line is giving extra heat on the hose and pipe

[ramilpepito]

Sir good day i hev a problem of an engene 6m60 the common rail injection is that normal wen the engene is at normal idle i loosen the injection in 1 piston ther is no fuel are coming out only the injector 3 has a fuel coming out cen you help me pls im prom phillippenes

[fathieljali]

Im just vistor but your explain vrey helpful

[lungelomkhasibe]

hello how do you bleed air out of this sytem

[catworld]

if pressure relief valve fails it may cause a hot start missfire? I got a honda diesel and is driving me crazy for 6 month already. Morning with cold engine starts fine but after a 30 minutes drive starts after 2 or 3 attempts.

[SomethingFromTheShed]

Is the cp3 a liquid sealed pump or a rubber seal pump ? Also what is the volts deliverd to the fuel injecters ? If the fuel line is airlocked could i expose the top of the inlet manifold and block it. Then turn the engine over to use its nayiral suction to pull the fuel through the line from the tank to the injecters ?

[kentwo]

I have a mitsubishi common rail crank no start but when i spray some starting fluid in the intake it will start.have any advice?thanknu