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.
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.
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.
@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.
@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
@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.
@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.
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 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! :)
"Gasses from the exhaust, go into the turbo, witchcraft happens, and you go faster"- wise words of Jeremy Clarkson.... good thing for this video, i always thought he was right
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.
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.
@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.
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)
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.
@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.
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.
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.
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...
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 ?
I have to apologise, i've just learned that where is actually different types of superchargers, and one of them is centrifugal supercharger, pretty much the turbo running of a belt.
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.
the whistling sound is the turbine spooling up to an incredibly high RPM, if you take a leaf blower to a computer fan it will make a similar noise.... the tsshhh, is the waste gate/BOV
What would decrease the power of the engine? I'm talking of the SIMILARITY between the design of Turbos & a Jet engine- a turbine at one end spinning a shaft that drives the compressor at another end. I know the advantages/disadvantages of using a turbo.
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
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?
pure hot oxygen would worsen performance. Engines are meant to intake cool air, why the turbo has a suction for cool air then goes through an intercooler also.
You need to remember two important facts to develop a turbo system, nr one is cogs have a speed limit and need to cylinder everything and number two is dry air. Of course lecomotief can use the steam pressure to develop turbo but then you must change the source of energy and at the end you will find out that you cant step in like an airoplane that became an exploding rocket hardly needs wings to fly but shot into the air like a bullet
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.
Dear Mr. Buchi in order for air to flow at the most extreme you need 1 to have the intake area to be as large as possible, why is the intake so small? 2 Why are you having the air turn 90 degrees!!???? lol 3 You are causing a back pressure on the gasses on the cylinders that are trying to exhaust the gas! Don't you want more air flow through the engine. 4 But worst of all, why do you have such small bearings? The bearings should be on the outside of the fins, and the air flow should be straight
if it ran off a belt it would be less efficient, to be run by a belt it is a parasitic effect because it uses engine power to create more power, but they do exist and are called superchargers, Turbochargers are used in this form because it uses energy that the engine no longer needs, and the expanding hot gases create an exponential amount of energy compared to energy being used.
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.
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.
good animations providing a clear view of whats going on
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.
"A turbo: exhaust gasses go into the turbocharger and spin it, witchcraft happens and you go faster. " - Jeremy Clarkson
Perfect explanation of the function! Simple and effective done! Thumbs up!
@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.
Best video explaining turbos that I've seen. Thank you very much.
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.
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.
@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.
VERY informative. Best vid on RUclips about turbos. Thanks.
@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
@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.
excellent explanation.. good work... :),, post some other videos...
This video is very beginner friendly~thx
great over view on the functions of a turbo and how it effects the motor
this is one of the coolest videos i'v ever seen
Unbeatable argument of explaination about turbo charger... tq.
@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.
Nice information thru animation...
Great, clear video, i learnt more from this than college
nice persentation... nd gud thinking power... i am inspire from this video...
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
Good stuff I'm getting ready to turbocharge my car so this was very helpful
Great job explaining how they work. Keep it up!
excellent! This was of extreme help, thanks!
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! :)
best explanation on RUclips
Best Turbo explanation video ever ...............
Thank you so much for this informative video i'm now feeling boosted myself too, with this interesting and valuable knowledge.👍👌
"Gasses from the exhaust, go into the turbo, witchcraft happens, and you go faster"- wise words of Jeremy Clarkson.... good thing for this video, i always thought he was right
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.
that is a great explanation thanks man i needed it for something important
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.
love it hope some day you will be building your own ultra modern tubo
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.
xD i love the way you explained a 5 min video, in less than a sentence.
A great video, thank you! Nice to know before installing a turbo =)
youve got it slightly mixed up mate. a turbo uses the exhaust gasses, a supercharger is linked and takes power from the crank
Cool stuff. Very informative and easy to understand.
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)
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.
@rohadtcigany a turbo is always "activated", you just dont notice a difference until it starts spinning fast enough at higher rpms
@arturbocouk Do you have a video for superchargers as well? This video was great!
have your company tried ur hands on corolla diesel 1.4 ltr turbo.how is its management system?great video ty
@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.
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.
Thanks for this video very helpful and awesome to see how it works
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.
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...
ok i can start building mine on my car thanks to you guys
This is an awesome video! Thank you.
Excellent video.
WELL DONE EXCELLENT LIKE HOW WELL IS EXPLAINED COOL IM GOING TO INSTALL A TURBO ON MY JETTA
Es muy educativo toca las partes proncipales muy claramente lo usare en mis cursos gracias
nice stuff sir.. it has given clear view about the system..thank u sir
excellent description!
I never learned something so much in one video like I did today.
It's the same voice narrator who narrated the Soviet Storm documentary :D
thanks for this, helped alot
I love how her presenting picture for this video has her in a "derp" face.
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 ?
Indeed... well explained :)
Other explaining videos don't presents a schematic explanation :)
I have to apologise, i've just learned that where is actually different types of superchargers, and one of them is centrifugal supercharger, pretty much the turbo running of a belt.
what a delightfull video indeed
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.
thanks! really good video! As said "clear and easy undestand"!
finally a video that makes sense
Rake loves this!
I love turbos! Good video
i drive a VW GTI ... this fascinates me so much to know whats going on in my engine =D
So what makes the turbo spool sound? The "Vzzzzzzzzzzzzzzzzzzzsssst tssssssshhh" sound
i do believe the vzzzzzzzzzzzssst is it spinning the tssssshhhh is the wast gate/ blow off valve
the whistling sound is the turbine spooling up to an incredibly high RPM, if you take a leaf blower to a computer fan it will make a similar noise.... the tsshhh, is the waste gate/BOV
Dyllidan ret yup :3
What would decrease the power of the engine? I'm talking of the SIMILARITY between the design of Turbos & a Jet engine- a turbine at one end spinning a shaft that drives the compressor at another end. I know the advantages/disadvantages of using a turbo.
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!
Just bought a '96 twin turbo Nissan 300zx! Thanks
Awesome video... Well explained :)
Thank u very much :) :)
wonderful video
Very good video.Now even a turk can understand how turbo works!!!!
Wonderful video
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
Amazing video
yes you can its called twin charged.
i like ur explanations
They both have the same concept. Just super chargers run off of a belt. And turbos run off exhaust.
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?
pure hot oxygen would worsen performance. Engines are meant to intake cool air, why the turbo has a suction for cool air then goes through an intercooler also.
You need to remember two important facts to develop a turbo system, nr one is cogs have a speed limit and need to cylinder everything and number two is dry air. Of course lecomotief can use the steam pressure to develop turbo but then you must change the source of energy and at the end you will find out that you cant step in like an airoplane that became an exploding rocket hardly needs wings to fly but shot into the air like a bullet
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.
Great demo
would it be possible to introduce a simple and small gear system inside the turbo to increase rpm even more?
well so can gasoline... But it will need its own cooling mechanism since oxygen is impossible to stay at liquid form at temperatures over 93 F
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?
Dear Mr. Buchi in order for air to flow at the most extreme you need 1 to have the intake area to be as large as possible, why is the intake so small? 2 Why are you having the air turn 90 degrees!!???? lol 3 You are causing a back pressure on the gasses on the cylinders that are trying to exhaust the gas! Don't you want more air flow through the engine. 4 But worst of all, why do you have such small bearings? The bearings should be on the outside of the fins, and the air flow should be straight
if it ran off a belt it would be less efficient, to be run by a belt it is a parasitic effect because it uses engine power to create more power, but they do exist and are called superchargers,
Turbochargers are used in this form because it uses energy that the engine no longer needs, and the expanding hot gases create an exponential amount of energy compared to energy being used.
All I know these are fucking magical these things defy logic...