TURBO 101 - How it WORKS and what's INSIDE - BOOST SCHOOL #2
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- čas přidán 8. 06. 2024
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The most basic observation we can make about a turbocharger is that it can be split into the hot and cold side. The hot side houses the turbine wheel and the cold side houses the compressor wheel.
All turbos are connected to the engine on their hot side. So as your engine is running it creates exhaust gasses. These exhaust gasses would otherwise be wasted, but on turbocharged engine these hot and fast moving gasses are used to drive the turbine wheel. On the other side, the cold side, we have the compressor wheel. The compressor wheel has a fixed connection to the turbine wheel via a common shaft. So when you spin the turbine wheel, you also spin the compressor wheel.
The compressor wheel shape is designed to suck in air into the turbo charger. It's called the compressor wheel because other than sucking the air in, the compressor wheel plays an important part in compressing the air, after which it send the air through the compressor housing into your engine intake manifold and your combustion chamber. This compression of air is what helps turbocharged engines make more power.
So the turbo compresses the air, it stuff more air molecules into a given space and by doing so it increases the pressure of the air which leads to the natural question of how do we control the amount of pressure that a turbo generates.
Enter the waste gate. This is what controls the pressure created by the turbo. The waste-gate system consists of the actual waste gate and a wastegate actuator.
So this part of the turbo housing and this plate of the cartridge play a key part in pressuring the air. When these two parts come together they create the diffuser. The diffuser turns the turbulent and fast moving low pressure air coming from the compressor wheel into slow moving high pressure air. To understand how it does this we have to take a loot at the ideal gas law which states that gas pressure and volume are inversely proportional. This means that as volume decreases pressure increases and vice versa. And as you can see the shape of the diffuser incorporates a dramatic decrease in volume. The compressor wheel flings and stuff the air into the narrow space, this both slows it down and pressurizes it. The air then travels through the volute and into the engine.
As we said pressure and volume are inversely proportional, as one decreases the other increases. But pressure and temperature on the other hand are directly proportional. As pressure increases so too does temperature. And this makes sense, as you compress the molecules closer together they start making more contact, generating more friction and thus more heat. This is why turbos not only pressurize the air, they also heat it up. And this is why turbocharged setups very often include an inter-cooler. The intercooler cools the air back down to prevent the air fuel mixture in the combustion chamber from pre-igniting from being too hot.
Now let's take a look at the turbo core. As you can see it consists of the turbine and compressor wheels and the center section which houses the shaft and some holes. This particular turbo is oil and water cooled. It has inlets and outlets for both engine oil and coolant.
The compressor wheel on almost all automotive turbochargers is radial. This means that it sucks in the air straight in, but it compresses it in another direction, in most cases 90 degrees offset from the direction of the air entry.
Inside the turbo core we can also find some bearings. A turbocharger has two types of bearings. Ones that control theradial movement of the shaft and others that control the axial movement of the shaft.
The bearings that control radial movement can either be journal bearings or ball bearings. Ball bearings can be beneficial in the sense that they can offer lower friction and faster turbo spool up time, however journal bearings are also adequate for a very wide range of applications. The bearings that control the axial movement of the shaft are called thrust bearings. T
This video was basically turbo 101 and in our future videos we will keep diving deeper into the turbo with more detailed analysis of all of ti's components including different compressor wheel designs, wastegate types, bearings and much much more.
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#d4a #boostschool #turbo - Auta a dopravní prostředky
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Why you zip tie wrenches????
@@brusk3978 I hang them on the wall 😊
@@d4a awesome video, could you check your dm on Instagram, I asked you a couple questions, I would really appreciate if you could answer them, thank you soo much and keep it up!
Bro how a turbocharger is different from a supercharger and naturally aspirated engine? I mean supercharged and NA engines move a steady amount of air in the cylinders so they have a linear power delivery right? Do Turbos also provide always a fixed amount of air or not? Because in a turbocharged engine you sont feel that linear power delivery
Thanks for answering
I'm an engineering student, currently procrastinating studying for, well, thermodynmics. I love this stuff. I'm reminded of why I am trying to learn about math and physics.
idk how someone can even dislike this video - this guy is literally giving you some insane knowledge in cars and breaking it down to easy to digest info, I've been waiting for these vids to continue ever since I saw the history of turbos - these vids couldn't come any faster lol. Great vids m8
they're jealous of his hair.
Some people are petty enough to dislike bc of his accent. That being said, gotta make my own comment.
This is video 2, Noticed video 1 typically has lower typically has lower views..
I haven't seen video 3 yet but that would probably have even less views.
The like to dislike ratio has increased ratio has increased in video 2.
It's the people not the content. People are just by choice meaningless life forms and they suck and some of them act like parasites.
Haters gonna hate I *guess* 🤔
A very high percentage of dislikes here on CZcams are given by idiots who are either jealous of others' knowledge or simply because they are dull, bored amoebas in a rich and intelligent society.
So his videos are so good that I first like it and then start watching it.
Hello sir. I'm on the edge of going to ball state for engineering. Last night , I thought the same thing! Glad to have free knowledge cheers
Me too 😂
Ow man I thought I was the only one doing that!
Same bro
Know how it works and whats inside; clicked anyway, cause D4A.
Reassuring that nothing has changed.🙂
Keep it up, I'm stoked for every new video.
Even when we know there's more to learn. I have a DH bike and it has hydraulic brakes, i've been bleeding them myself with no trouble for the last 3 years, but recently i found an odd issue: no matter how much i bled my rear brake, it would never deliver a response. After a LOT of researching, i found out that you can cycle the fluid both ways to get as much air off as possible, and also that the shape the hose had when the brake was mounted basically prevented the air from leaving. I learned a new technique to bleed them and the issues from my geometry. Normally on cars this isn't an issue since the hydraulic systems are centralized and bled from a single point, wich lets air escape easily.
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I just wanted to personally thank you for all of the time and effort you’ve put into this channel. I’m currently on my last level of mechanics, and the material is so outdated, the course heavily overloaded and our teachers are so overstretched that it’s hard to have questions answered. Your channel has helped me no end in learning but also helping other students understand things.❤
Your videos are simply outstanding! You do a terrific job explaining things clearly and making them easy to understand. My 16 year old son and I have learned so much from your channel. Keep up the great work and know that your effort is really appreciated!
Love this. I didn't study automotive engineering but love cars. Decided to read a book on automotive engine design, building and repair to get to know more than what I knew about cars and this boost school is helping me understand concepts I've read so far better.
@Lucas Van Hamburg It's called Automotive Engines Diagnosis, Repair and Rebuilding 6th edition by Tim Gilles. Got it from PDF drive
If you like videogames you might need to check out Beamng and Automation
I have been a autotech for over 40 years and this is the best explanation of turbocharging I have ever seen, Bar None.
Thank you
Ohhh we got us an intro!!! Very cool! Loving this series, really well explained and easy to follow as always
My turbo just broke and I’m trying to fix it soon so this class is coming in clutch. Keep up the great work
Almost like engineering explained. You should get more famous! :)
I think he's a lot better
I honestly can't wait for the next video! This channel is growing fast and quality is getting better.
6,666 views. Nice. I love that you actually did the math on how many molecules would be in a cylinder. Also, turbo head guy is creepy. Phenomenal job as always.
Can't wait for turbo 201 class!
Great content like always. Wish I would have seen this 5 years ago. Would have saved me a lot of trial and error lol.
always love watching your car part lessons! pure quality
Damn, I love how calm and educative your videos are. Maybe your channel isn't one of the biggest ones like Engineering Explained etc. (yet), but it sure is one of the most informative ones. Thanks for the hard work man.
I don't need channel size when I have viewers like you :)
@@d4a This is excatly why I subscribed!
Thank you so much man, this is all stuff I'd have a lot of trouble finding out on my own and being a visual learner this is an incredible resource into increasing my automotive knowledge. THANK YOU DRIVE 4 ANSWERS AND THANK YOU SO MUCH AEM FOR MAKING THIS POSSIABLE!
this is like a class at university, only it's about the turbo .....! I f****** love it!! thanks for the vid 👍👍👍👍👍👍👍
This was the best video I've seen detailing how a Turbo works!!! A+++
Easy to understand explanations and perfect animations that show exactly what needs to be seen!
That's a gorgeous MR2 Toyota
Should watch some of the Banks Power vids, great stuff from Gale Banks about turbos.
I absolutely love learning from this channel, I have no background in science but true way you explain everything is absolutely perfect.
Great video. Going to enjoy the series.
Love this series!!! Thanks for sharing, best regards from Michigan
Brilliant video. Deserves 100x the likes.
Recently ordered my first turbo charged car. To get some information how it works I've got across this vid.
Thank you @driving 4 answers for this absolutely informative video! Love the way how you explain the theory behind car mechanics!
Excellent video as always! Thank you!
This comes at a perfect time as I'm planning to tune both my car and my brother's, upgrading the turbo charger was the part that scared me the most, now thanks to this video, it scares me even more (more compression=more heat specifically).
Awesome video man.
Thank you for the excellent explanation. I watched this together with my kids; very helpful.
Best video on turbos that I’ve come across yet. Great work.
Thank you so much for doing such a great job in illustrating, animating and describing how turbos work. Very impressed Sir.
Very Clear, simple to follow Good Job
This guy is so good! Anybody els would have created a website and charged money but he is probably the only guy in CZcams making proper in depth videos on engineering topics probably just because he can feel our thirst for these kind of knowledge. Love you buddy❤
Turbo love
Very well presented and detailed. Great work!
This video was very informative, top notch
Lovely videos mate! Cheers from Milan!
Dude, I love your intro! If I were a high school shop teacher I would absolutely work this series into the curriculum!
It's very informative and very precise.
Thank you very much
Awesome, these are invaluable.
Fantastic work.
Yet another great explained in details. This was very interesting material. Thank you :)
Excellent and enjoyable, as always!
Minor nitpick: Temperature increase of a gas being compressed (by reducing its volume) is non-ideal gas behavior, essentially the opposite of the Joule-Thompson effect. In a truly ideal gas (which doesn't exist in reality, even if some gases do come close) volume reduction and pressure increase would "take care of each other" - without any T increase.
Excelente trabajo 👍🏻👍🏻👍🏻, muchas gracias.
I love your videos !
Been waiting for this video. Looking forward to future episodes in this series. Thanks!
Amazing breakdown!
Osm video man boost school was just what I wanted for
Mo power baby 😂👍👍
Great video! I really like this channel.
The video is very well structured and well explained
Thank you!
Čudno je , da malo ko zna za ovaj kanala sa naših prostora!
Serijal o turbopunjačima ti je odličan!
Excellent video. Marvelous
Best video explanation I’ve ever seen
Loving the info. Great job on your presentation.
Great stuff, every day's a school day!
As always, great content- always educational. Love it!!!
Best video ever explaining the turbocharger
Damn, D.
I have to be back to work in 5 hours and should be sleeping but had to know everything about turbos.
But I already knew all this!
Really good stuff man! These videos are killin' it.
For someone that knows nothing about turbos like me, this was very informative. Thank you!!
I love the intro👍🏻
Dude I love these videos, please more school of boost🙏🏼 don’t stop the grind bro
Don't worry, I'm all about the grind ;)
best explanation my teacher when i was in university my teacher didn't explain it to me as much as u said you are brilliant keep it up bro
You guys are amazing for this.
Thank you for this séries!
excellent brilliant video this gives some very valuable information to help complement vehicle workshop manuals. It is much easier to follow in this video than trying to decipher all this in a book without any moving pictures.
Well I was going to watch a few video on turbos to get the idea.... glad this was the first one, all I needed 😄
Thank you so much man, Good explanation!
Thank you sensei, for another clear and instructional video :)
Dou tashimashite :)
Best vid on this topic on the internet 👍👍👍
Great explanation!
You nailed another one. Very clear and precise about your explanation, as usual. Are you an engineer? If you are, well of course you are. If not, even more impressive honestly.
Thanks for the info!
You guys are the best keep up the good work
This is such a good channel!
I love this man so much thanks to you a AEM
Awesome video. Keep up the good work👍👍
Keep it coming, please dive into pressure vs volume wheel.
Thank u. Greetings from Sweden.
Very informative and educational. Would love a video on the EA888.
can't wait to know more
Like the videos. How about you do another ‘iconic engine’ episode featuring the YB Cosworth?
Can't wait to see a video on AR wheel ratios and how to determine what would be the right one for the type of build/driving you're going for
Amazing information 🙏👍👍
Good effort 👍
Great video
I wish our school teachers would teach like this and make lessons so interesting
Although I am not studying automotive engineering but I find his videos very interesting
Enlightening indeed. What more can I say 🤔 speechless 😶.
Very helpful thank you!
God Bless you Bro!!
happy new year sir,,,new subscriber from philippines.
Happy New year 😊🎉
Cant wait to see it after this add
I've been waiting for the next installment off boost school. Are you also planning on talking about A/R ratios and what to consider when sizing turbine and compressor housings for a particular core?
I will definitely be talking about A/R and turbo sizing for an engine
very clear! TYSM!
Great presentation. A combination of science and graphics. I'm not a car guy, but I'm buying a 240z that's been modified. I'm considering adding an RB 25 and turbo chargers.
always a pleasure watching your videos. I would think on this one if you had taken the ideal gas equation and used it to demonstrate that Pressure, Volume and temperature are all solidly related to each other. There are no free lunches but turbocharging is about as free as you are going to get since the energy is wasted, a cut off exhaust pipe demonstrates that energy loss totally clearly.
Have you aver try the game automation. I'm sure some one like you would enjoy making it's own engine and cars witch then can be imported to another game call BMG.drive and play with your cars or even one's made by other people
so 2 videos i hope you can make are the pros & cons/similiar & diffrence/workings of the turbo charger vs. the super charger, and the other one as the same thing but steel beam frames vs. unibodies
New subscriber here. Tanx sir for sharing your videos
Well explained. #thumbsup
how these videos aren't more popular i will never know
Great explanation you only hear people say “turbo sucks in air and stew stew stew” not sure what kind of explanation that is but after this video turbo makes some more sense to me