Awesome video, thanks, really helped me understand how turbos work, my lawnmower has been lacking power and now I know what I need to do, once again, thank you.
Variable turbo geometry is used to reduce turbo lag across the entire rev range, it also uses the exhaust gases more efficiently. With variable turbo geometry you can eliminate the waste gate because the amount of pressure can be regulated with the moving vanes. Variable turbo geometry are only found on diesels with the excepting of Porsche. The reason you don't see these on the petrol engines is because the heat of the petrol exhaust gases are a lot hotter than diesel exhaust gases.
@arturbocouk Well, this really is 1st class. Animation, speed of display just right, content is right on the mark and explains exactly how the turbo works. On a tiny tiny point I would prefer the music quieter - or even absent - but that is nit-picking. Thanks for a great production.
@PECEbro turbos are more efficent because they use exhaust gases to operate and they provide high end tourque, super charger provide low end tourque and doesnt have lag (time it takes for turbine to spool up). they both have ups and downs
@3479Eugene red isn't fire, it's hot air(exhaust gases) The blue is the cool air being pulled from the atmosphere and then passed through the intercooler to cool it further.
My understanding is that variable turbine turbos are essentially turbos that can "change gears" on the fly so that the turbine can maintain a more constant speed (or boost level) across a wide engine RPM range. Effectively, I would assume this should reduce turbo lag when spooling up from low RPM, and help prevent the turbo at high RPM from over boosting.
@georgibubu thats correct. Because work was done in making the exhaust gas, the exhaust gas has energy to do more work. It does so by spinning the turbines. In short, the turbines then take in air (which contains O2) and compresses it. The pistons get more O2 to burn than usual so increases economy. Basically the exhaust is analogous to wind that rotates the turbines in a wind generator. For a wind generator we want electricity. For turbo, we want air (or oxygen) to brought in and compressed.
Wondering if this is correct: Intake of air is at high velocity so therefore with Bernoulli, pressure must decrease. When a car goes faster, the velocity of air increases therefore pressure decreases (PV = PV). Thus a car gets less O2 as it goes faster (inefficient at higher speed). The turbines compresses the air for higher density (more O2). However, the cooling stage deals with PV = nRT where V, n and R are constant. Decrease T will then increase density, thus again more O2 per unit volume.
ok ... i know the mechanism fot both of these, but i still got a question : as u stated superchargers provide instant boost at a cost of some horses. The turbos are more efficient, but if they dont provide instant power to ur car, when do they activate themselfs ? What does it depends on ? rpm, gas pressure, fuel intake ?
@3479Eugene No i don't think that they absolutely must use an intercooler, but using one increases the density of the air being cycled back into the engine which then means more power. A quick search of a well known turbocharged car, Saab 900, shows that the early turbocharged engines used were not intercooled.
Thinking carefully, a jet engine is essentially a (very) large turbo. The turbine (powered by jet fuel) spins the compressor, drawing in air & compressing it & then exiting the engine at very high speed, creating thrust & powering the plane. I stand to be corrected.
the part about how the variable turbine turbos works, need more detail. i dont know if its spool up faster or slower of how much air is consume by the exhaust gas on its variable adjustment. i dont know if my assumption is correct or not. great video by the way, i can actually understand how it works in visual view.
it's very important, when you put new turbo charger, to put some oil into oil hose that supplies charger and lubricates the compressor shaft,so when you start the engine that oil will lubricate charger before oil from engine comes and starts to lubricate and it will prevent damagge in new charger and stops the friction.
It uses the hot air FROM the cylinders to spin the turbo which turns the compressor which sucks in the cool air that goes INTO the cylinder. Only cool air goes in and then te hot air is forced out by the cylinder.
Sam Wagner The compressed air is hot, from the compression and running through a hot turbo housing. The intercooler cools it or on older systems a "cross over pipe" a pipe with veins like a heat sync or air cooled motor bike head.
If I understand this correctly...variable turbine turbos are turbos that won't spool up until a certain RPM, right? If it isn't a variable turbine turbo, it'll spool at any RPM?
I have a good idea, they should make a little transmision and gearing for the turbine... When a lot of exhaust is pushing through, the gears automatically adapt and change to a higher ratio, so the turbine doesn't have to spin so fast and lasts a lot longer. The best one used would be a continuously variable transmission since it is extremely simple and has infinite gear ratios. It doesn't need any clutches since it fluctuates while the turbine may be spinning. Lower rpm's= less friction= longer
Hi, I was wondering if the turbine and compressor blades have a different orientation in this clip than in reality. From what I know, the blade arrangement in a centrifugal compressor need to have a backward shape orientation for maximum efficiency, while here it seems to have a forward orientation. Could anyone clarify this ?
@3479Eugene No intercoolers are not a MUST. And there have been cars w/o intercoolers. But the act of compressing air generates heat in itself. As you know, the colder the air the more oxygen. Engines run on oxygen. So they pass the compressed air into an intercooler to, well, cool it down.
So... actually, the turbo is not reusing the exhaust gases?.. those gases are just used to spin the turbine in order to make the intake turbine from the turbo to work and suck on fresh air from the exterior? Finally I got it... i watched many videos and still didnt get the answer, but you, through your video have done it. If im on a mistake, please feel free to correct myself.
i have and 03 pontiac grand am gt. nothing modified to the engine but i want a turbo for the better gas milage and the horse power. would a turbo fit and would it be a wise or bad choice to make? plus how much would it even cost to buy the turbo and have it installed ?
I don't understand why people dislike this video. Was it not what they were expecting? I wonder what this video about turbos is all about. OMG! It's about turbos!! Dislike, dislike, dislike!!! More to the point, great video, very informative! :)
it just depends on what you are using your car for. superchargers provide instant boost so are more practical in drag racing (although there are ways to build boost in turbos). the downfall of superchargers is that it takes hp to power them. if a turbo provides 50hp then it will provide 50hp but if supercharger provides 50hp it has 2 use some hp to power it, so u get a higher net gain from turbos than superchargers (turbos sound better too when u add in a blowoff valve but thats just my opinion)
nissan navara d40 have a variable turbine turbo developed by renault for nissan. that changes everything for a sluggish turbo diesel that we're used to. if somebody here owns a navara td they'll know what i'm talkin about.
IF you run the turbo using a belt part of generated engine torque will be wasted to run the turbo which will eventually decrease car performance. But exhaust gas contains energy that is going to be wasted in a conventional car and with the help of a turbine it can be converted to kinetic energy which can run the turbo...
@lolzordje123 I don't think so. The presence of gears would mean parasitic loss of energy. This loss of energy would mean lower RPMs and therefore lower flow of air. Also, where would you put such a gear system? It would be extremely complicated and will only mean unreliability since more parts = more things to break. Are there even gearboxes that can withstand hundreds of thousands of RPMs?
Essentially, they are the same thing with two different energy sources... Turbochargers wind and compress with exhaust pressure and superchargers wind and compress by being belt driven.
it does technically rob power from the engine, but the amount of punch that a supper charger puts in will override that. however what i think you are trying to say is the engine works harder and consumes more gas lowering MPG.
@funnyface680 Of course they are not the same. Wastegates regulate the pressure of the turbocharger, while blow-off valves expell the force-fed air that remains in the systems when the throttle body closes, so as to prevent that air from returning to the turbocharger, thus shortening its life span.
pretty sure a turbo doesnt reduce fuel consupmtion since you have to compinsate for the additional air being delivered to the engine by richening the air to fuel mixture by using more fuel
Yes, but it needs a similar amount of fuel as a non-charged engine while producing the same power. For example: 1,2 liter turbocharged engine produces as much power as a 2 liter non-charged engine (just an example), but needs less fuel to do so. -> Less fuel consumption at the same power output.
First of all , one must understand that both gasoline and diesel engines use filtered AIR directly sucked from the atmosphere as the working medium. The fuel ( gasoline and diesel ) are burnt in the cylinders of the engine. This heat energy is converted into mechanical energy, with which the wheels are turned. The hot air from the engine was earlier thrown into the atmosphere after each cycle of engine operation. The turbocharger reuses this hot air by converting this heat into work by a turbine, which runs an air compressor, which supplies more air into the engine. This additional air , supplied at higher pressure, results in production of more power. Thus , the turbochargers give triple benefits :firstly, produce more power with the same amount of fuel, secondly, cool the waste air from the engine going into the atmosphere and ,thirdly, save the environment from the bad effects of unburnt chemicals in the exhaust gas. All this, without extra fuel cost (Of course, one has to pay for the turbocharger system).
turbos in theory are more fuel efficient but for the turbo to spoil up you have to be at a high enough RPM and at that RPM you are already using more fuel then if you were driving fuel efficiently but lets say you drive at 6000RPM and no turbo you get 20mpg but if you have a turbo and you are going at 6000RPM you will get more then 20 mpg..hope i was able to explain it
Awesome video, thanks, really helped me understand how turbos work, my lawnmower has been lacking power and now I know what I need to do, once again, thank you.
good animations providing a clear view of whats going on
Thanks for all the positive feedback, we're glad that this animation has been a useful tool for you guys and many more to follow.
no no no, magic goes into the turbo happiness comes out
indeed
more like $$$ goes into the turbo happiness comes out
The best (detailed) technical video explaining a turbo on youtube.
Fantastic overview of turbocharging. Everything sounds better when explained with a British accent. Well done.
Variable turbo geometry is used to reduce turbo lag across the entire rev range, it also uses the exhaust gases more efficiently. With variable turbo geometry you can eliminate the waste gate because the amount of pressure can be regulated with the moving vanes. Variable turbo geometry are only found on diesels with the excepting of Porsche. The reason you don't see these on the petrol engines is because the heat of the petrol exhaust gases are a lot hotter than diesel exhaust gases.
Best video explaining turbos that I've seen. Thank you very much.
Perfect explanation of the function! Simple and effective done! Thumbs up!
VERY informative. Best vid on UA-cam about turbos. Thanks.
@arturbocouk Well, this really is 1st class. Animation, speed of display just right, content is right on the mark and explains exactly how the turbo works. On a tiny tiny point I would prefer the music quieter - or even absent - but that is nit-picking. Thanks for a great production.
great over view on the functions of a turbo and how it effects the motor
@PECEbro turbos are more efficent because they use exhaust gases to operate and they provide high end tourque, super charger provide low end tourque and doesnt have lag (time it takes for turbine to spool up). they both have ups and downs
@3479Eugene red isn't fire, it's hot air(exhaust gases) The blue is the cool air being pulled from the atmosphere and then passed through the intercooler to cool it further.
"A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster. " - Jeremy Clarkson
My understanding is that variable turbine turbos are essentially turbos that can "change gears" on the fly so that the turbine can maintain a more constant speed (or boost level) across a wide engine RPM range. Effectively, I would assume this should reduce turbo lag when spooling up from low RPM, and help prevent the turbo at high RPM from over boosting.
have your company tried ur hands on corolla diesel 1.4 ltr turbo.how is its management system?great video ty
this is one of the coolest videos i'v ever seen
@georgibubu thats correct. Because work was done in making the exhaust gas, the exhaust gas has energy to do more work. It does so by spinning the turbines. In short, the turbines then take in air (which contains O2) and compresses it. The pistons get more O2 to burn than usual so increases economy. Basically the exhaust is analogous to wind that rotates the turbines in a wind generator. For a wind generator we want electricity. For turbo, we want air (or oxygen) to brought in and compressed.
Wondering if this is correct:
Intake of air is at high velocity so therefore with Bernoulli, pressure must decrease. When a car goes faster, the velocity of air increases therefore pressure decreases (PV = PV). Thus a car gets less O2 as it goes faster (inefficient at higher speed). The turbines compresses the air for higher density (more O2). However, the cooling stage deals with PV = nRT where V, n and R are constant. Decrease T will then increase density, thus again more O2 per unit volume.
This video is very beginner friendly~thx
Great, clear video, i learnt more from this than college
Unbeatable argument of explaination about turbo charger... tq.
Best Turbo explanation video ever ...............
ok ... i know the mechanism fot both of these, but i still got a question : as u stated superchargers provide instant boost at a cost of some horses. The turbos are more efficient, but if they dont provide instant power to ur car, when do they activate themselfs ? What does it depends on ? rpm, gas pressure, fuel intake ?
excellent explanation.. good work... :),, post some other videos...
@3479Eugene No i don't think that they absolutely must use an intercooler, but using one increases the density of the air being cycled back into the engine which then means more power. A quick search of a well known turbocharged car, Saab 900, shows that the early turbocharged engines used were not intercooled.
Thinking carefully, a jet engine is essentially a (very) large turbo. The turbine (powered by jet fuel) spins the compressor, drawing in air & compressing it & then exiting the engine at very high speed, creating thrust & powering the plane. I stand to be corrected.
Thank you so much for this informative video i'm now feeling boosted myself too, with this interesting and valuable knowledge.👍👌
do u know if the return line drains out with pressure or by gravity???
best explanation on UA-cam
the part about how the variable turbine turbos works, need more detail. i dont know if its spool up faster or slower of how much air is consume by the exhaust gas on its variable adjustment. i dont know if my assumption is correct or not.
great video by the way, i can actually understand how it works in visual view.
love it hope some day you will be building your own ultra modern tubo
keep it up
xD i love the way you explained a 5 min video, in less than a sentence.
it's very important, when you put new turbo charger, to put some oil into oil hose that supplies charger and lubricates the compressor shaft,so when you start the engine that oil will lubricate charger before oil from engine comes and starts to lubricate and it will prevent damagge in new charger and stops the friction.
so does the turbo feed hot air into the cylinders or does it try to cool the air and then send it into the cylinders? plsss explain ty
It uses the hot air FROM the cylinders to spin the turbo which turns the compressor which sucks in the cool air that goes INTO the cylinder. Only cool air goes in and then te hot air is forced out by the cylinder.
Sam Wagner
The compressed air is hot, from the compression and running through a hot turbo housing. The intercooler cools it or on older systems a "cross over pipe" a pipe with veins like a heat sync or air cooled motor bike head.
i am driving e 90 320d 2005 model,there is oil leak between intercooler n turbo tube ,bt my machenic say turbo only werk wit air,,,plz help
nice persentation... nd gud thinking power... i am inspire from this video...
Good stuff I'm getting ready to turbocharge my car so this was very helpful
Hello, i'm researching about this, can i get this simulation file for study purpose
If I understand this correctly...variable turbine turbos are turbos that won't spool up until a certain RPM, right?
If it isn't a variable turbine turbo, it'll spool at any RPM?
I have a good idea, they should make a little transmision and gearing for the turbine... When a lot of exhaust is pushing through, the gears automatically adapt and change to a higher ratio, so the turbine doesn't have to spin so fast and lasts a lot longer. The best one used would be a continuously variable transmission since it is extremely simple and has infinite gear ratios. It doesn't need any clutches since it fluctuates while the turbine may be spinning. Lower rpm's= less friction= longer
I never learned something so much in one video like I did today.
Hi, I was wondering if the turbine and compressor blades have a different orientation in this clip than in reality. From what I know, the blade arrangement in a centrifugal compressor need to have a backward shape orientation for maximum efficiency, while here it seems to have a forward orientation. Could anyone clarify this ?
@rohadtcigany a turbo is always "activated", you just dont notice a difference until it starts spinning fast enough at higher rpms
ok i can start building mine on my car thanks to you guys
Great job explaining how they work. Keep it up!
@3479Eugene No intercoolers are not a MUST. And there have been cars w/o intercoolers. But the act of compressing air generates heat in itself. As you know, the colder the air the more oxygen. Engines run on oxygen. So they pass the compressed air into an intercooler to, well, cool it down.
So... actually, the turbo is not reusing the exhaust gases?.. those gases are just used to spin the turbine in order to make the intake turbine from the turbo to work and suck on fresh air from the exterior? Finally I got it... i watched many videos and still didnt get the answer, but you, through your video have done it. If im on a mistake, please feel free to correct myself.
that is a great explanation thanks man i needed it for something important
Nice information thru animation...
can you have a turbo and super charger? or do they do the same thing in the same place so would get in the way of eachother?
i have and 03 pontiac grand am gt. nothing modified to the engine but i want a turbo for the better gas milage and the horse power. would a turbo fit and would it be a wise or bad choice to make? plus how much would it even cost to buy the turbo and have it installed ?
Thanks for this video very helpful and awesome to see how it works
I just found out a little bit how the turbo works, but if the red colour are fire, what is the blue colour?
would it be possible to introduce a simple and small gear system inside the turbo to increase rpm even more?
is a wastegate a blowoff valve or is that something different
I don't understand why people dislike this video. Was it not what they were expecting? I wonder what this video about turbos is all about. OMG! It's about turbos!! Dislike, dislike, dislike!!! More to the point, great video, very informative! :)
Cool stuff. Very informative and easy to understand.
nice piece of technic....what does a bi-turbo??
it just depends on what you are using your car for. superchargers provide instant boost so are more practical in drag racing (although there are ways to build boost in turbos). the downfall of superchargers is that it takes hp to power them. if a turbo provides 50hp then it will provide 50hp but if supercharger provides 50hp it has 2 use some hp to power it, so u get a higher net gain from turbos than superchargers (turbos sound better too when u add in a blowoff valve but thats just my opinion)
Where does the blow off valve come in, just it just release the built up pressure with in the turbo itself?
so the air that goes in comes from the turbo fan??
can the turbine be used to recharge hybrid batteries instead of blowing air?
@dethmetalderique Thanks, I get it, another question please. Did every vehicle with turbo MUST using/need an intercooler?
youve got it slightly mixed up mate. a turbo uses the exhaust gasses, a supercharger is linked and takes power from the crank
@arturbocouk Do you have a video for superchargers as well? This video was great!
nissan navara d40 have a variable turbine turbo developed by renault for nissan. that changes everything for a sluggish turbo diesel that we're used to. if somebody here owns a navara td they'll know what i'm talkin about.
IF you run the turbo using a belt part of generated engine torque will be wasted to run the turbo which will eventually decrease car performance. But exhaust gas contains energy that is going to be wasted in a conventional car and with the help of a turbine it can be converted to kinetic energy which can run the turbo...
excellent! This was of extreme help, thanks!
This is an awesome video! Thank you.
i drive a VW GTI ... this fascinates me so much to know whats going on in my engine =D
How is it to use a variable turbine turbo on an old diesel engine that's not electronically controlled?
@lolzordje123 I don't think so. The presence of gears would mean parasitic loss of energy. This loss of energy would mean lower RPMs and therefore lower flow of air. Also, where would you put such a gear system? It would be extremely complicated and will only mean unreliability since more parts = more things to break. Are there even gearboxes that can withstand hundreds of thousands of RPMs?
Essentially, they are the same thing with two different energy sources... Turbochargers wind and compress with exhaust pressure and superchargers wind and compress by being belt driven.
What is the source of this video? (the author for example)
It is for using it as a reference.
Thanks
WELL DONE EXCELLENT LIKE HOW WELL IS EXPLAINED COOL IM GOING TO INSTALL A TURBO ON MY JETTA
it does technically rob power from the engine, but the amount of punch that a supper charger puts in will override that. however what i think you are trying to say is the engine works harder and consumes more gas lowering MPG.
Just bought a '96 twin turbo Nissan 300zx! Thanks
A great video, thank you! Nice to know before installing a turbo =)
nice stuff sir.. it has given clear view about the system..thank u sir
@funnyface680 Of course they are not the same. Wastegates regulate the pressure of the turbocharger, while blow-off valves expell the force-fed air that remains in the systems when the throttle body closes, so as to prevent that air from returning to the turbocharger, thus shortening its life span.
@LordLaharl hadn't really thought of it that way, but gearboxes? what do they have to do with turbos?
What's better a supercharger or turbocharger?
pretty sure a turbo doesnt reduce fuel consupmtion since you have to compinsate for the additional air being delivered to the engine by richening the air to fuel mixture by using more fuel
Yes, but it needs a similar amount of fuel as a non-charged engine while producing the same power. For example: 1,2 liter turbocharged engine produces as much power as a 2 liter non-charged engine (just an example), but needs less fuel to do so. -> Less fuel consumption at the same power output.
First of all , one must understand that both gasoline and diesel engines use filtered AIR directly sucked from the atmosphere as the working medium. The fuel ( gasoline and diesel ) are burnt in the cylinders of the engine. This heat energy is converted into mechanical energy, with which the wheels are turned. The hot air from the engine was earlier thrown into the atmosphere after each cycle of engine operation. The turbocharger reuses this hot air by converting this heat into work by a turbine, which runs an air compressor, which supplies more air into the engine. This additional air , supplied at higher pressure, results in production of more power. Thus , the turbochargers give triple benefits :firstly, produce more power with the same amount of fuel, secondly, cool the waste air from the engine going into the atmosphere and ,thirdly, save the environment from the bad effects of unburnt chemicals in the exhaust gas. All this, without extra fuel cost (Of course, one has to pay for the turbocharger system).
good
.....right?! I know that whenever I'm on-boost, my fuel gauge definitely lets me know it!
So the main idea is that the turbo blows more air to the engine?
How many more horsepower and torque does the average turbo add to a car?
It's the same voice narrator who narrated the Soviet Storm documentary :D
do u have to refill your turbo?
Excellent video.
excellent description!
I love how her presenting picture for this video has her in a "derp" face.
Rake loves this!
finally a video that makes sense
what a delightfull video indeed
Very good video.Now even a turk can understand how turbo works!!!!
I love turbos! Good video
Es muy educativo toca las partes proncipales muy claramente lo usare en mis cursos gracias
Indeed... well explained :)
Other explaining videos don't presents a schematic explanation :)
turbos in theory are more fuel efficient but for the turbo to spoil up you have to be at a high enough RPM and at that RPM you are already using more fuel then if you were driving fuel efficiently but lets say you drive at 6000RPM and no turbo you get 20mpg but if you have a turbo and you are going at 6000RPM you will get more then 20 mpg..hope i was able to explain it
Where would the belt go?