Catalytic Converters - Explained
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- Опубликовано: 11 июн 2013
- What is a catalytic converter? How do catalytic converters work? This video explains how catalytic converters convert harmful gases into less harmful gases, so the air we breathe is more pleasant.
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Engineering Explained your videos have helped me significantly at my job at AutoZone. Can’t thank you enough!
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Man I am working on my Master degree in ME and your videos help me so much
Thousands of tiny little ducks, you say....
Oxygen alone is fairly dangerous so this isn't too common to do. It's safer to use it as a molecule with N2O which keeps the oxygen from igniting until it has split from the two nitrogen atoms.
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Great job! This is the best explanation I have found on youtube.
Thanks!
I know this is 10 years old. Love coming across this content. Fantastic. Nice to witness smart, well educated young people on the internet. Great job young man! Excellent presentation. It would be interesting to know what you are doing with your career and education these days. Thank you
Excellent video on the chemical interaction with the catalyst + the two types of catalysts in a converter. I love watching your videos! Thanks for sharing.
This is a great video man. Needed to learn how they worked fast and this helped so much. Thank you.
+Steve Carter that make us two
+Agostinho José Alexandre And possibly 3. :)
It's the carbon in the exhaust, which hasn't been filtered out. Modern diesels typically will have DPFs (diesel particulate filters) which will almost eliminate this.
Great explanation. I've seen inside a catalytic converter, and have always been curious as to how it works exactly.
Great to hear! Some of it is still a little voodoo to me. I don't fully understand the attraction between the catalyst and the molecules. Obviously it has to do with the electron cloud; but I don't enjoy chemistry enough to continue to dive deeper.
Downforce, for higher cornering speeds/traction. Check out my video "front wing" which goes into a bit of detail of aero in F1 racing.
Typically they last the life of the vehicle, but you'll know upon your car inspection whether or not. If you do have to replace it, it can be as simple as unbolting and putting the new one in; sometimes it will require some welding.
You may be interested in my videos on rotational inertia. Aside from that I don't have much to say about rims.
I found this to be simplified in a good way, yet very informative. Simplified explanation goes a long way in theory retention. Do you have anything on EGR cooler and it’s function? Thanks 😊
This is probably how dragons breathe fire
this is an underrated comment
Glad the video quality and explanations improved over time.
Good job man, I've been looking for videos like this. Super helpful
great videos ..very helpful during exams. THANK YOU
I was looking for videos like yours. thank you, these are going to help me learn.
Your videos are far better than that guy who thinks he's a comedian. I appreciate presentations that get straight to the point.
The air you're breathing is 78% nitrogen.
Thanks much! That was well explained and not excessively complicated. Cheers
Well hopefully this video illustrated the reason. If the water condenses (water is a product of combustion) you may see it drip out the back of the exhaust.
Unbolt it, and yes, it could. You should leave it in as most states require one legally.
Could you please make a video on fuel maps and ECU programms
Cool, I'm only 14 and I feel like I could explain a whole car and put one together your awesome😄!
Thank You,this helped me on my science C1 Exam
how often do the inner plates need soot cleaning?
This is why I love your channel. extremely simple to understand how cats work. What's the connection to the need for an operating temperature?
Well done. Nice explanation, overview and graphics. Basic stuff, but what I needed. I think it would help to have taken basic chemistry to appreciate and absorb the information presented. As far as I can tell the chemistry is spot on but simplified. Thanks!
Simplest (smartest) description I have found...
I've got a video on KERS, regen braking pending. I also do want to do a video on the new F1 engines eventually.
Yes, sounds good, best of luck!
I learnt so much in less than 5 minutes. why can't all science be taught like this?
Yang Zhou but you didn't *learn* how to spell...
I will be making a video on O2 sensors, yes!
Certainly both technologies need to evolve and improve over time; catalytic converters are not 100% efficient, so keeping the engine efficient is important too. Also, catalytic converters cannot eliminate CO2.
Thanks for this clearly explanation. You did help me a lot .
Emo phase of engineering explained! Still love it!
And ... That whiteboard never gets old😂
I've been a partner for over a year. In fact, anyone can be a partner now; but I applied before April of 2012 where you still had to be accepted into the program.
Basically it's much easier for the chemical reactions described in the video to occur when the system is at a higher temperature.
It's a mix with the other elements I mentioned.
I'm mostly interested in the way it steered.. I was really amazed after I saw some behind the scenes stuff with the car going sideways and stuff!
The engine block itself shouldn't be getting that ridiculously hot, as it has ports flowing through with coolant that try to keep the temperature somewhere around 200 degrees F (coolant temp). So I don't think water getting on the block would be a huge concern (obviously it happens when it rains or you dive through a puddle. That said, I wouldn't simply dump a bucket of water in it; and driving through deep water can cause countless problems.
Explained really well. Easy to understand :)
Excellent! Good job. Thanks for a great explanation.
Great video, I haven't been able to find a single other explanation of cats other than that they burn off the harmful gases. Which raised way more questions than answers for me. Thank you for going into just a little bit of detail so I can understand the core principles of how these things worked. Everybody else just made it sound like Voodoo.
this is a good explanation, now I m clear about it.
thanks for the explanation. are any companies looking to do co2 capture in addition to catalytic converters?
Great, thanks for watching! Seriously 100+ videos in a few days? Maybe time for a nap.
I believe they all use the same basic set-up; the high-flow ones just have more area to pass through.
We're covering hydrocarbons in Chemistry again, and that oxidation/combustion equation does come up. Neat.
Assuming it's the most restrictive part, yes (not necessarily true). Though it's illegal in most states, and should be kept on.
Rich a/f mixture.
Can you explain how to calculate the unburned fuel in the exhaust? I've watched your O2 sensor and exhaust videos and don't see that detail... Specifically I'm looking to find out how much of the fuel was not burned in the engine (pre cat). I'm certain there is some way by using the CO and CxHx. Can you help me or point me in a direction where I can find the answer?
Should be awesome that you can post videos on Twin Charge systems like in VAG, or Launch control, or MSD ignition systems, or variable geometry turbos, or KERS, or Regenerative Braking.... also if you can talk about the new regulations for F1 next year on turbo engines... Nice Channel keep up the good work!
This is why if you are failing your vehicle inspection due to emissions they will sometimes tell you to go for a long drive then try again, because the catalytic converter will be more efficient once it has warmed up due to you driving it around a lot
is this why a lot of exhausts on a healthy car can be a little smoky on cold start-up?
thnx, explained pretty well for my gcse chem although is there a difference between cataysts for the cracking process and the converter? thnx again (:
Do you have a video on the O2 sensor that's before and after the Cat? If not can you make one? I do have an idea from their name but to know exactly how they work and sync with other parts would be nice. Thanks for another great video, please keep it up. Learning a lot!
It can cause back pressure, hence the creation of high-flow cats.
Hi Jason, What are the benefits of having two catalytic converters in a car? Is it to increase longevity of the catalytic converters or to increase efficiency of the catalytic converters?
Yep, I believe that's true.
Thank you man, srsly this was the only video that helped me with the homework, you are a superhero
Great explanation!
Not positive, I assume they just have a greater area for the exhaust to pass through.
Great explaination! Thanks a lot...
Interesting, perhaps to aid in burning off any excess fuel.
Thats cool and all, thanks for the explain, BUT what I don't see SULPHUR / SO/SO2..etc on your white board, and its Nasty rotten egg, or the"fart" smell from whenever someone mashes on the accelerator to much. So where does that nasty smell come from, AND exactly HOW is that "cleaner"??
thanks for your explanation
Hey man any chance you do a video on magnetic suspension? or the way the formula-like car in fast 6 works? thanks!
Are there catalytic converters that can also eliminate the CO2?
and thanks for another interesting video!
At 1:23 you said the nitric oxide bonds weren't as strong as the bonds with oxygen and the catalysts. What exactly do you mean by this? I know the electronegativity can't be as high in those bonds so what physical mechanisms are occurring that cause this? I've taken a couple of college level chemistry courses and I'm about to take organic chem. What you spoke about here is what we are about to go over in class and I was hoping you could give me a good explanation of a real life example. Thank you and you do have amazing videos.
Thanks for the episode!
I have a new car model (about 2017) working on diesel and a semi-open garage (I mean there is a ceiling that covers two-thirds of the car but not all the car, three walls but there is no door in the entry, and instead 2,5 meters of fresh air).
Can carbon monoxide still be dangerous if the car's motor remains on, or is it safe even if I forget to put it off and stay inside the garage??
Sorry for all of the comments your video are really interesting! I've got a MS in physics and I'm still learning stuff (I guess I have mostly theoretical training). I'm interesting in automotive engineering and I want to take your advice about applying to an engineering program and writing a thesis.
Do you think something around active torque vectoring using a hybrid system would be interesting ? Think the new NSX concept. I would like to do this as a project someday.
Haha I don't know what was up with that car. They said it was a diesel but I don't think it sounded anything like a diesel.
thank you for this, amigo
You can still install a high flow cat, and unless your engine is absolutely absurd (perhaps for drag) you can get away with it.
There must be a way of using the heat from the exhaust gases, prior to being put through the converter, to get it up to temp faster.
Many thanks for this video.
excelent video buddy, thanks for the knowledge
Which converter contains platinum mostly ? Petrol or Diesel ? After purchase from the scraps, precious metals existing in there or not ?
Does lacquer thinner in gas tank can clean the catalytic converter without damage to the hoses or rubber components? I have the code P0420 on my 2001 Chevy Monte Carlo
Or just let your car warm up, but yeah. Your engine is going to try and maintain a certain temperature.
thanks for the great video as always!
Thank you for your videos man
Thank you for explaining this :)
Awesome lacture
Thanks bro the video was really useful👌
What about using multiple catalytic converters?
I have a generic cat converter with no directional arrow to show me which way to install it on vehicle. Is there a way to know which is the reduction side and which is the oxidation side. There is an opening for an oxygen sensor but it has a plug in it as my sensor is on the exhaust manifold itself. The vehicle is a 95 geo tracker with a 1.6 16 valve engine
And the heat from the previous ignition separates N20 back into it's elements? Makes sense thanks
Hi. Would you agree that the stuff entering the catalytic converter is on some level still could be called by name fuel? Does not matter what grade but would it be in your world a fuel?
Great video, just wondering though: Would there be any reason you couldn't use the same catalytic converter indefinitely?
They last for a good while, but if carbon were to build up it would at least need to be cleaned.
If you were looking for more power would you just do without the catalytic converter altogether?
How does it do that process so quick like when you floor it, it doesn’t slow anything down.