First I would like to appreciate for the great explanations. May I request another video that speaks about the whole functionality process of EGR, TURBO, ACTUATOR, EGR COOLER, TURBO INTERCOOLER, EGR SOLENOID, TURBO SOLENOID more in detailed. Thank u
Instead of Euro 4 EGR design. Its better to add filter on the system so that only O can enter and mix into the intake port. On Mazda CX5 diesel too much carbon deposits built on intake manifold and intake port with 30 months of usage.
@@Mpanagiotopoulos No, because with EGR you`re recirculating old exhaust fumes in ur intake, witch also clogs ur intake manifold up bad in the future, when you blank the EGR your engine is running on clean air, so your actually saving your engine! :) And also your engine oil will be in much better condition when EGR is blocked. Ive recently blocked my EGR and improved the fuel consumption big time! :)
@@iMentorZz I was arguing with my father(which has been a car mechanic for his whole lifetime) about a customer of ours who wanted to delete his EGR(ecu & mechanical).And my father was saying to me that if we delete his EGR,He will gain Torque/HP and maybe fuel consumption,but we cannot guarantee to him that he won't have high temperatures if he drives his car really fast in the highway,and that made me think twice.
@@Mpanagiotopoulos I suppose what ur father was trying to say is if u guys delete it and dont remap it afterwards, but I dont see this happening because ur costumers car will go in limp mode if the Egr is deleted, and ur rpm wont go up, If you delete it you should go get your car remapped, so the ecu will bacically work like it did just now with the egr programmed out of it. I have a friend that had a bmw 320d with the old m54 engine those you can run without even remapping it, but if youve done the work why not just remap and get better results :)
I have a question about what you said around 3:24. You mention that if the chamber is only partially filled, due to less mass, there is not sufficient pressure and temperature for the gas to ignite. Is the ignition of the fuel dependent on pressure as much as it is on temperature? If the pressure were the same, and the temperature threshold were met, would the gas not still ignite? I believe I understand here that in this system the ignition is dependent on temperature and the temperature is dependent on the pressure. Is that correct? To me, this makes the ignition indirectly dependent on the pressure. What I am wanting to understand is that if the temperature could be increased in some other way, with the pressure staying the same, would the gas still ignite? Or is there a pressure that does need to be reached because the gas will not ignite, no matter the temperature? I apologize if the question was not worded clearly. I am trying to grasp what is happening and lacking in my ability to use the appropriate vocabulary.
Yes it does! Manufacturers are trying to make more efficient engines but then use EGR that makes engines not that efficient. What a load of crap it is. Doesn't let diesels work to there efficient ways, they need heat to complete combustion. With out egr not much soot comes out the tail pipe, if theres no Dpf, ive seen it myself, so less soot better for environment and then run it threw the DPF, wont work as hard as less soot and then use SCR or adblue injection to take out NOX. just why they dont leave the engine alone. All the egr just kills them. In theory it should be good but in real life EGR is the biggest crap!
So is the only advantage of EGR in gasoline engines over just leaning out the air mixture the fact that there's less "extra" oxygen in the EGR premix to react with the nitrogen?
There should be an economy mode for when vehicle is stopped and foot is on the brake at a red lights. Maybe a switch that is activated when a certain pressure is on the brake pedal. Traffic light turns yellow on other side so lighten pressure on brake to close EGR valve in anticipation of green light.
Kuya, in a Chevy 350 engine, do you think weak valve springs can cause dense blow by smoke? I am guessing maybe a air intake valve is not opening 100 percent. So in my theory, the cylinder is not getting sufficient O2 to make a clean burn.
5:37 but that’s still unclear how it lowers the temperature. You have the recirculat gas that doesn’t catch fire but if you had fresh air instead it wouldn’t burn either because the oxygen inside would exceed the required quantity for combustion so some of it will remain and combine with the nitrogen and form NOx
Kenny fresh air act as a diluent as well except it has more o2 and les co2. water in gaseous form from the exhaust would rather condensate releasing heat but it’s still too hot for condensation.
@@rotorblade9508 yes agree but the point of EGR is to lower the temperature AND reduce the NOX. If you are using fresh intake air, then the NOX is high 😁
I don’t know why but engines run really hot when you run them lean. When you have less fuel than air. And they run cooler when you have more fuel than air
You mentioned lag in acceleration after idling if egr valve, due to the engine having to wait two to three cycles. But at engine rpm 750, it takes about 1/5 sec lag which in my books is acceptable. Why?
The best and very much detailed explanation of EGR and its benefits. Thank you so much.
Awesome video. You did a great job of explaining the EGR.
Best explanation of EGR. Keep uploading bro. One day sure your channel will be very popular
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This is how natural V8s balance NOx emissions at low rpm.
Thanks bro
I learned a lot about EGR valve using this vidoe. you guys did a great explanation using the 3D graphics also thanks a lot!!!
What an amazing channel, This channel will take over Engineering Explained for sure, rip whiteboard
look at this dude
Very clearly told and very easyly understood by me....
Thanks a lot! the video is so well done!
Really helpful 😊👍😀. Thanks for your clear explanation
Really useful and complete explanation. Thanks!
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Its like eating then farting back in your own mouth! Nice technology
Well cosidering that you only burn 30% of the gas that is used recycling the air makes sense.
@@spaceman4294 EGR is crap. It reduces your engine's power and life.
I disabled my egr on my nissan exalta timing chain driven
V.
@@spaceman4294 ll
Valuable information, well explained. Thank you very much.
vevry educative. thank you regards
Brilliant explanation!!!! Thank you!!!🤩
Good Detailed Info..Thank you !!!!
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U explain like a pro.... Make more vedio for mechanical engineering stud will rock bebe....
Very impressed with the explanation 👍
First I would like to appreciate for the great explanations.
May I request another video that speaks about the whole functionality process of EGR, TURBO, ACTUATOR, EGR COOLER, TURBO INTERCOOLER, EGR SOLENOID, TURBO SOLENOID more in detailed. Thank u
Instead of Euro 4 EGR design. Its better to add filter on the system so that only O can enter and mix into the intake port. On Mazda CX5 diesel too much carbon deposits built on intake manifold and intake port with 30 months of usage.
thanks
Awesome video !!
Great Video - Thank you!
Hi goes blanking off the EGR improve fuel consumption
Yes very much
Well yeah but my question is wouldn't that result in higher temperatures within the combustion chamber thus lowering the lifetime of the engine ?
@@Mpanagiotopoulos No, because with EGR you`re recirculating old exhaust fumes in ur intake, witch also clogs ur intake manifold up bad in the future, when you blank the EGR your engine is running on clean air, so your actually saving your engine! :) And also your engine oil will be in much better condition when EGR is blocked. Ive recently blocked my EGR and improved the fuel consumption big time! :)
@@iMentorZz I was arguing with my father(which has been a car mechanic for his whole lifetime) about a customer of ours who wanted to delete his EGR(ecu & mechanical).And my father was saying to me that if we delete his EGR,He will gain Torque/HP and maybe fuel consumption,but we cannot guarantee to him that he won't have high temperatures if he drives his car really fast in the highway,and that made me think twice.
@@Mpanagiotopoulos I suppose what ur father was trying to say is if u guys delete it and dont remap it afterwards, but I dont see this happening because ur costumers car will go in limp mode if the Egr is deleted, and ur rpm wont go up, If you delete it you should go get your car remapped, so the ecu will bacically work like it did just now with the egr programmed out of it. I have a friend that had a bmw 320d with the old m54 engine those you can run without even remapping it, but if youve done the work why not just remap and get better results :)
I have a question about what you said around 3:24. You mention that if the chamber is only partially filled, due to less mass, there is not sufficient pressure and temperature for the gas to ignite.
Is the ignition of the fuel dependent on pressure as much as it is on temperature? If the pressure were the same, and the temperature threshold were met, would the gas not still ignite?
I believe I understand here that in this system the ignition is dependent on temperature and the temperature is dependent on the pressure. Is that correct? To me, this makes the ignition indirectly dependent on the pressure. What I am wanting to understand is that if the temperature could be increased in some other way, with the pressure staying the same, would the gas still ignite? Or is there a pressure that does need to be reached because the gas will not ignite, no matter the temperature?
I apologize if the question was not worded clearly. I am trying to grasp what is happening and lacking in my ability to use the appropriate vocabulary.
I think, pressure won't be the same in compression stroke, as T is proportional to P,
but you did not mention about the soot getting inside the combustion chamber? it builds up and it will kill your engine in time
We have catalytic converter also
@@abdulsaboorkhan1365still soot can enter to intake manifold
MAZDA uses a liquid cooler for their EGR recirculation system. More costly but it works.
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Thank you.
GREAT GEAT EXPLANATION ....
very clear information and i need know how much pressure developed in combustion process?
Best explaination 👍
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Your voice is satisfying 😘
Thanks for this information.
Doesn't EGR reduce the power, efficiency of the engine?
Yes it does! Manufacturers are trying to make more efficient engines but then use EGR that makes engines not that efficient. What a load of crap it is. Doesn't let diesels work to there efficient ways, they need heat to complete combustion. With out egr not much soot comes out the tail pipe, if theres no Dpf, ive seen it myself, so less soot better for environment and then run it threw the DPF, wont work as hard as less soot and then use SCR or adblue injection to take out NOX. just why they dont leave the engine alone. All the egr just kills them. In theory it should be good but in real life EGR is the biggest crap!
So is the only advantage of EGR in gasoline engines over just leaning out the air mixture the fact that there's less "extra" oxygen in the EGR premix to react with the nitrogen?
➕¹⁹¹⁷⁷³⁷⁵⁹¹⁵
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Useful 🔥👌🏻
best explanation
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great explanation
Excellent
There should be an economy mode for when vehicle is stopped and foot is on the brake at a red lights. Maybe a switch that is activated when a certain pressure is on the brake pedal. Traffic light turns yellow on other side so lighten pressure on brake to close EGR valve in anticipation of green light.
Kuya, in a Chevy 350 engine, do you think weak valve springs can cause dense blow by smoke? I am guessing maybe a air intake valve is not opening 100 percent. So in my theory, the cylinder is not getting sufficient O2 to make a clean burn.
5:37 but that’s still unclear how it lowers the temperature. You have the recirculat gas that doesn’t catch fire but if you had fresh air instead it wouldn’t burn either because the oxygen inside would exceed the required quantity for combustion so some of it will remain and combine with the nitrogen and form NOx
Because the gas from exhaust contains CO2 and N2 adn water vapor which act as diluent
Kenny fresh air act as a diluent as well except it has more o2 and les co2. water in gaseous form from the exhaust would rather condensate releasing heat but it’s still too hot for condensation.
@@rotorblade9508 yes agree but the point of EGR is to lower the temperature AND reduce the NOX. If you are using fresh intake air, then the NOX is high 😁
Kenny yes, you are right
I don’t know why but engines run really hot when you run them lean. When you have less fuel than air. And they run cooler when you have more fuel than air
You mentioned lag in acceleration after idling if egr valve, due to the engine having to wait two to three cycles. But at engine rpm 750, it takes about 1/5 sec lag which in my books is acceptable. Why?
If I commute in heavy traffic, lots of stop-starts and idling, fuel consumption is decreased substantially. Am I wrong?
...and especially if the engine is under load by the AC compressor while idling
Thanks a lot
Well explained
Great sir
PLEASE EXPLAIN ...THE LAST PART AGAIN ...DURING IDLE CONDITION WHEN STOP AT RED SIGNAL.....
Why is it then if you blank the egr off the engine responds better to throttle imput at low rpm pulls much better an 0 to 60 improves considerably?
because egr is a scam designed to cause engine wear problems and cost people money. h2o injection is way better
Since the egr is closed on low RPM it wouldn't make any difference.Does it ?
Is ci Engine a diesel??
Yes
very helpful ""!
All this time I thought the egr gas partially react during combustion!
But how EGR decreases ignition delay?
it should be increased ignition delay
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In Balkans we turn that off
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Not very bright. Doing so causes premature knock. The computer retards timing until the knock stops. This reduces efficiency up to 10%.
Bro make a video on tesla engine pls
Aren't you suppose to explain how it does it and not what it does?
Never works like this more damaging to the Diesel engine
It's works
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