Rotary Engine | How It Works
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- Опубліковано 8 тра 2018
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The rotary engine that Mazda used in the beloved RX-7 and RX-8 doesn’t work like other engines. This episode of Science Garage explains what’s going on inside the magic triangle that gets you all that high revving action that rotary drivers love! People who know them love them AND hate them. From rotors and apex seals to housings and E-shafts, you’ll learn about the Wankel Rotary Engine, and HOW IT WORKS!
Bart teaches us how cars work by blowing stuff up and cutting things in half. It’s a science show for the car lover who’s easily bored. Join Bart as he explains the science behind everything automotive. This is cars down to the atom. This is Science Garage.
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7:59 • Zazoo Kid Screaming - Авто та транспорт
I like getting Yelled at about how things work, not Talked at. That’s why I love #donutmedia
Curtis Campbell thats some weird kink
Curtis Campbell lol
True shit
I understand it better to
You'd love my dad
A real mans fidget spinner.
In usa, you have figit spinner. In japan in 1985, we have rotary spinner.
@@TanBoiIndustries people in Japan before 1985:
*bruh*
@@rainyclouds9846 yuh rip 4 them
Iluminati engine
@@GhostOfDamned dorito powered car, perfect for those epic MLG gamers
This man sounds like lightning mcqueen
Brennan Taft haha agreed
But equiped with a wankel rotor
If he drank about 5 gallons of nos energy drink
I cant unhear this now🤣😭
I want to hear him says "focus, speed"
Mr. Wankel descended from heaven to give us magic Doritos
*DR. Wankel had nothing to do with this engine... in fact he hated this engine.*
lol @ descended from heaven - his attitude and ideas were so radical that he was kicked out of the nazi party twice!
It was Félix Millet (a French scientist/engineer) who invented the rotary engine in 1888, NOT Felix Wankel.
@@MDDeGrande1994 Why is it called Wankel rotary engine then?
@@juanin200 wankel brought the rotary engine to reality, millet made the original idea
Mazda should have made the rotary better and continued the rx series
if that’s how it is, rx9 would already be out, but world is different as the world in the 90s, because of the environmental protection, the rotary produces too much harmful gases for the environment, and it still can’t passed the test, you think they don’t want to make a new one? they already made it
*This week marked the 10 year anniversary of Mazda's board cancelling the RX brand and further development of Wankel engines.*
*The RX brand's bad reputation for unreliability and poor fuel economy saw sales in a steady decline as far back as 1986 with the last two RX model suffering a net loss for the company... it is estimated that the RX-8 lost nearly $3 billion dollars in development, production and warranty costs that bankrupted the company for the third time in its history.*
*As part of the government bailout loan deal Mazda agreed to cancel development of the unprofitable Wankel engine and drop the failing RX brand.*
@Bill Luo *While it is a common urban myth that the RX-8 was canceled because of emissions, this is simply not true.. The RX-8 continued to pass the world's toughest emissions standards (EPA Tier2 Bin5 **_AND_** the strict California CARB ULEV II right up until lack of sales ended production.*
*Sales of the RX-8 were so low in Europe there was simply no reason to justify re-certifying the RX-8 to meet the Euro5 emissions standards as they would never sell enough units to recoup the costs incurred.*
@@dreeary9475
To get the rotary passing the latest emissions, would have taken time and resources. Mazda had all its engineers on the SkyActive projects, which was viewed as essential for the company.
@@doktorbimmer wrote:
_"While it is a common urban myth that the RX-8 was canceled because of emissions"_
Not myth Bimmer. Fact.
Felix Wankel saw an internal combustion engine, and immediately thought to himself, "Cool, but I bet I can do it with triangles."
Who needs circles when you've got triangles!
Illuminati confirmed?
I’m actual dying lol
Just like how Team Silent looked at Resident Evil and thought "Cool, but I bet we can do it with triangles!" 😄
Keisuke and Ryosuke approve this.
Kyoko Iwase too.
Han Seoul-Oh and Aaron Parker approves too
@BRENDON LEHO no cap
yea
Shonen-ai hentai for rotards..
I miss this series so much
Me too. Why did they stop?
Nikhil Sharma Bart isn’t with donut anymore. Really quite unfortunate. He was my favourite host by a long shot, and this was my favourite show
Isn't he a dad now?
I think donut scraped bcuz. Everybody in the comments said he did coke
@@leonflpqzhz4765 No lol. He became a father and had to take care of his new child (a son I believe).
The answer is simple: Dorito magic
codrin stefan thank you taco bell! For creating Doritos locos tacos and making it a success. So much of a success that they created Doritos chips.
Easily the funniest comment in the universe!
rotor looks like the triangle shape mints called Smints
referring to it as the Dorito will literally never get old to me
codrin stefan *Dorifuto mahou
I did a 5 page essay on the Wankel rotary
My teacher didn't get what I was saying 😆
I love doing that!!
You had to yell her as he did
But hey, you got an essay
You madlad.
If your teacher never understood, your writing skills need sharpening.
*Today marks the 7th anniversary of the end of RX production, on Thursday June 21, 2012 at 4:30pm the final RX-8 car ever to be produced rolled off the assembly line, the last RX model to ever be produced by Mazda.*
Hey Bimmer, what else did the screaming voices tell you?
*The salesman at the Mazda dealer didn't scream... he very politely said that Mazda does not make Wankel engines anymore....*
@Dee Jay i don't get it...
Mazda is adding a single chamber range extender wankel option to it's 2020 BEV in the next year, apparently. But you may be right for ordinary ICE application. In other news, there are some VERY promising clean diesel developments, which you did predict. Achates truck application and Mueller/Sandia ducted injectors.
8th anniversary.
Engines: we use Pistons around here
Rotary: let me introduce myself
They don't make Wankel engines anymore.
Sander Van der Kammen I mean, Mazda has said they’re gonna bring back the RX-7, but they’ve been saying that for almost 10 years.
@@JimmyDean59 The last RX-7 was unveiled 30 years ago.
Sander Van der Kammen Yeah, and they have said they’re gonna bring it back.
@@JimmyDean59 "They" being the clickbait bloggers?
Mazda's president confirmed there are no plans to bring Wankel engines.
Sick vid! 👌🏻
Can you tell us why fuel injection is superior to injection from a carburetor DOWN TO THE ATOM?
Ok that was a good one😂
Because it can better control the ATOMization of the mixture.
Bits of Pulp Ayyeeeeee 😂
Hotdog Updog Thanks 🙏🏻 😂
Because the computer has many sensors reading the air mixture as air changes on a hot and cold day and as it also changes at sea level or up in a mountain 10,000 ft high, and a computer can easily adjust depending on how much you step on the pedal and control other components simultaneously for maximum performance, 😎👍🏽
Anyone else noticed the reflection of the Dorito on the table at 0:36? That's attention to detail and I love it. Like.
ßaron ??? Dorito?
I didn't at first but now that you say that.... it's pretty cool
Because of the shape of the rotor, it’s become a joke to call it a dorito.
"That's attention to detail" reminds me of someone
@@kentuckysmoose yeah that's what rotors are colloquially called
I still miss this guy, and science garage, so much!
Just appreciate the level of genius
FELIX WANKEL WAS AN UNDERAPPRECIATED *GENIUS*
*Unfortunately Felix Wankel's engine design was a complete failure.*
@@doktorbimmer if it was around as long as piston engines im sure it would be a lot better than them
@@alper7653 yeah, I would've loved to see mainstream companies like GM and Ford to take it on and put time into them like piston engines. That 7 litre Corvette would've been insane
@@alper7653 The Wankel was invented nearly 70 years ago... so you might want to rethink your theory.
*one direction?*
there goes your ad revenue.
He's saying that they'll get demonetized. You can use in my experience up to ~9 seconds before you get your video flagged, so they'll be alright.
i love how brian loses it but doesn't even understand in the first place
XDD I get it
*R.I.P. "Rust in Peace" Wankel engine... 1964 - 2012*
Player hater
*The Wankel engine is not a player in the engine manufacturing industry anymore... its an obsolete design because it was inferior to reciprocating technology.*
@@doktorbimmer Producing power with less weight, fewer parts with fewer steps & in a smaller machine is not inferior.
*Certainly is inferior, that is why the Wankel was a commercial failure and has been obsolete in the engine manufacturing industry for many years.*
@@doktorbimmer Bro you can cite history all you want. But there is a shop in Aussie that exclusively produces them to this day. So no it is not dead. Please see: ua-cam.com/video/oA9tLl6p9nY/v-deo.html
And I am sure they have already developed billet based parts that are capable of extreme durability. Did Mazda thought about this back in the 1960s. No why because times where different then and I am sure billet blocks and heads didn't come into existence. There is intellectual aptitude yes but pure intellect alone does not subsitute for pratically reality of manifesting things. You need skill and intellect to make something manifest. In the case with these guys. They are keeping this relic of mechincal engineering around and are improving upon it as we speak and breath. So yeah...do not doubt that something is assumingly futile because it has failed in the past. It can be reworked and improved upon as you can see with this shop here:
ua-cam.com/video/oA9tLl6p9nY/v-deo.html
Emissions and reliability aside, this is just a really cool engineering idea brought to life. Always cool to see designs that push against the comfortable norms.
Seems like the emission problems are inherent so it may be done for, [which isn't bad] but still, cool that these got developed so far in the first place!
Absolutely fascinating design, unfortunately it was fundamentally inferior to reciprocating engines.
The biggest problem is reliability and the lack of power and dismal torque output compared to it displacement and fuel consumption.
This country needs more teachers as enthusiastic and energetic as you.
Just when u though u new everything about Rob Dahm Fav Motor
Mike Arredondo he posted a vid at the same time this was posted lol
Him: you don’t need to worry about camshafts or anything like that. Apex seals: You were wrong.
I tend to not understand things but this man really hit the nail and makes me want to learn!
How it works episodes are so underrated. Alot of things that I couldn't understand from other educational channels, learned them easily from these videos. Keep the great work man.
🙌RAMCHARGERS!🙌
*-RAMCHARGERS-*
Mo powah babeh!
3:50 earrape warning
I thought that was funny
ThisKidLukas Dodd lol if you think that was earrape then you weak
@@zachsteiner your profile pic and comment gave me a good laugh😂
But you're definitely right
Love your videos! Anesthesiologist who loves learning about engineering, history, creativity and cars. Thanks your explanations are great
I needed more informational yelling in my life
Sebastian Alba yea.....me too
That One Direction ear rape tho.
Road thanks for the warning brother.
4...
3...
2...
1...
No one sleep in Tokyo!
All right crossing the line
No one quit the radio
Tokyo is on fire
Eruobeat intensifies
I'm a gay come on! XDXD
69th like crew
*N-NANI?!! KANSEI DORIFTO??!!*
Hey buddy what’s up… You definitely explained the rotary engine like no other! Amazing explanation and animation beautiful work thank you.
Rotisserie power
u mother pancit! I said that in class and I got the v-h8 from the professor
u mother pancit! Lol
Just when you made me fall in love with Rotary , you made me want to stay away from them! LMAO no engine is perfect. But why
*The Wankel engine turned out to be a bad choice... no manufacturer even sells them anymore.*
rotary engines are famous for beeing very unreliable.
@@TheBurnknight thats totally wrong
@@nextusiv7781 Its absolutely 100% true, Wankel engines are inherently unreliable and and less durable than other types of internal combustion engines.
Wow! Can I just say that I saw many of this guys videos and in some he seemed sort of... Unnatural. As if he wasn't truly comfortable- something was off. But These newer videos really show him acting natural and as if its really YOU. Love these videos and love how Bart has improved!
Really awesome never knew how a rotary engine cycle before it's pretty freaking sweet. Thanks man
Donut Media Love Cars Man! Videos like these makes my day bright up 🌞🙌
Rotary is life you can’t change my mind
fuck he's right
Apex seals...
Depressio Spaghettio you meant ApEX sEaLS
pistols are better for every other aspect. Change my mind.
EMCE3IME_LINUXTECHADDICT Nahh dude I prefer assault rifles boi
Thank you so much for this simple crash course on rotary engines so i can be prepared to buy my first rx7
I am studying mechanical engineering and these videos are much more helpful than most of the books about internal combustion engines.
Dude, you are hilarious as well as informative. Thank you!
3:45 i laughed way to hard, man i love this channel
Daan Cornet stop
"And sometimes, when it gets moving really quick, you get this..."
One sexy ride: "BRAAAAATATATTATATATATAAAAAAAA(Flamethrower initiated)"
I love this channel lmao
Thanks man so much this helped me on a school project
Science garage is my favorite show
7:34 How...did I not even notice unburnt was spelled unbunrt until my at least 10th time watching this vid
You guys are awesome. Thanks! Keep it up!
I love how this channel teaches me more than school
This is episode isn't titled Rotary Engine, it's called:
"The Takahashi Brothers Episode!"
Do you even drift, bro?
WOAAAHHHHHH I DOOOO
That's why 60% of us are here.
The Rotary Brothers!
100th like
Hey Donut Media abd Science Garage,
I'm currently working on getting my Airframe and Powerplant lisence. I've watched a several episodes and it's always a good refresher. I was wondering if you could talk about radial engines? About how they work, pros cons etc in sicence garage style.
This guide helped me with my diy rebuild btw thanks for a good intro to this devil's triangle
You're the best character to this channel to be honest.
0:08 - ARE YOU SURE ABOUT THAT
you would be an awesome car teacher love your videos they entertained me and give me knowledge about cars
These Videos are #GOLD
Learned a Lot.
I've always preferred wankels over piston engines because they're so much more elegant by design. If only they could work around the major drawbacks they have. I've love to have a wankel in a bike because of the amazing power to weight ratio, compactness and noise.
Pretty sure I've seen a rotrary bike around UA-cam somewhere
@Micah - There are a few custom built race bikes I believe but I don't think there are any production rotary bikes.
6Twisted I agree, Ive only heard of one and that was just from a visio racer video
There are a decent amount of rotary powered bikes, but they are rare so yeah.
6Twisted Turbocompound
Triangle shaped Engine Illuminati confirmed ?
Mike Arredondo dorito engine
Rolluminati confirmed
youre like 40 years late.
Dorito powered
DEAD MEME
Dude you are the best and the way you explain is dope
Brilliant explanation
October 2022, i miss this guy... 😭
#ROTARYGANG!!❤
King Whispa garbage
It's #Rotangclan
Rotarychargers!
No its #Rotangklan
O!Technology Yeah I wasnt referring to mad Mikes one!!I know it's rotangklan
This channel is awesome. Keep it coming!
The good thing about science is that it's true whether or not you believe in it."
thanks, thats really useful information ^^
1:38 i call it cranckshaft anyway
Eccentric-crankshaft is a crankshaft...
@@sandervanderkammen9230 Hes changed his name, but id recognize this D-Bag anywhere.
I'd love to see you explain the benefits of a straight 6 engine vs the benefits of a V6 engine. Balance / fuel economy. It'd be very interesting.
thanks for help! I'll get good mark at physics presentation about rotary !
These videos are brilliant !
*ROTARY ROLLA DA!*
It's Initial D and JoJo reference combined. VA for both Dio and Ryosuke are the same.
That would make Takumi driving a 911 under a different name normal then, wouldn't it? (Takumi and Tatsuya are also voiced by the same person.)
Red Valkyrie Maybe. And he no longer delivers tofu through mountain passes with eurobeat blasting on his audio.
Ya. He quit tofu delivery (thus erasing all touge skillz) and became a doctor (idfk how) , bought a 911, tuned it, met this guy named Akio Asakura, got into a relationship with his sister (Eriko) , saw Akio die, saw this new Akio in old Akio's Z, see new Akio crash multiple times (without dying) , and eventually lose to him. Takumi's life has definitely gone downhill, if you know what I mean.
Red Valkyrie Haven't watch Wangan Midnight, and I personally prefer skills and techniques rather than raw power.
But I heard of a tale of the crazed driver of the mountain passes. The tales tells that he can drift with his eyes closed. There's even rumor of him lighting a cigar while doing so. He runs a tofu shop, and people said he looks just like a normal middle-aged guy.
I've heard that story many times. And for some reason, whenever it gets to the point of him lighting his cigarette, an odd piece if music begins playing. At first it sounds all silly and fun, but then it suddenly turns all serious. And just as the verse is about to kick in, you can here a different middle-aged man, possibly a friend of the crazed driver, shout at the top of his lungs for someone to save him. And then all sounds are cut, replaced by the clear sound of tires screeching. Gives me goosebumps whenever I hear it.
#BRAAAPSTUTUTUTU
you forgot the brap brap brap and BANGs
*_Followed by the screeching sound of broken apex seal chucks grinding into the housing walls..._*
evos are red, subies are blue, but both of them go BRRAAAP STUTUTUTUTU
@@doktorbimmer The uk government are being forced to ban or limit diesel cars by 2040. They are giving off high amounts of carcinogenic pollution and are credited for a large rise in cancerous deaths. A lot of the diesel emission testing didn't apply to real world situations while many were falsified. In other words 95% of diesel cars are marginally better for us than petrol if at all, some diesels are worse. DPF filters (that limit the cancerous fumes) are also a very big grey area in effectiveness. Many people have them removed as they block up easily and are costly to replace. Also very conflicting evidence in how well they actually filter while working on top of the added pollution they take to make. Also much pollution is added because some people are forced to ''drive on the motorway to clean the filter''. If they don't do that a warning light puts cars into limp mode. Sellers of such cars do not tell people that diesels are very bad to be used as anything but long distance vehicles. Car makers want sales, telling people a car that is bad in short journeys is not good business for them so they don't say it.
this was very helpful
This is the first video I've seen that talks about the e-shaft. I had an idea on how it worked, but this video finally shows it!
*The **_Eccentric-crankshaft_** works no differently than any of type of crankshaft... it just has a shorter stroke and is more rigid to deal with the massive stress cause by the lack of internal balance in the Wankel engine.*
@@doktorbimmer yeah but more so how it connects to the rotor specifically. It's pretty awesome
*Not really, it uses the exact same types of bearings that other crankshafts use, not different at all in that respect... Connects to the **_PISTON_** specifically... the term "rotor" is a slang, an incorrect translation or proprietary term applicable only to certain defunct brands of Wankel engines.*
0:20 when you get possessed by Phil Swift
YAAAH FINALLY, GO MAZDA, GO
Vadim Blyat Doesn't necessarily has to be old, RX-8 exists.
That One Guy rx8? You mean that car you can't even find on the road anymore because they all had shit motors?
Either that or people don't know how to lubricate. I have a 13b-MSP in my RX-7 GSL.
ak operator no, he means that car that won 4 times the drift world contest
Rodrigo Mangas that means nothing. Drifting is for 14 year Olds and vaping douch bags.
OUTSTANDING JOB WITH THIS VIDEO!!! :)
Love this dude. Learnt too much
Well another part i love about rotarys is the really smooth Power-band and if you'll screw on an Supercharger it compliments its nice power-band even more.
Smooth is just another way of saying no torque...
The only thing a supercharger is guaranteed to do is wreck the apex seals
Boost in > Apex seals out>
@@sandervanderkammen9230... Yeah... Right... Because Rotarys cant hold power? I guess you don't like Rotarys?
@@holzwurm_hd7029 Just the facts here kid...
you don't know anything about Wankel engines do you?
Wankel engines are inherently unreliable and less powerful than reciprocating engines.
Any questions?
@@sandervanderkammen9230 who cares about reliability when you can have a car yell at everyone you pass
@@mewmew8932 Not when you're taking the _ride of shame_ in the cab of the tow truck...
This isn't real. It's all just magic
Kenny K yup. Magical Doritos
Kenny K and a little bit of physics.
Physics?! Nah, just magic.
And Doritos.
Magic that comes true
What’s up fellow Kenny.
the way he explains and narrates videos is great haha
Hey Donut Media, can Bart make a video about Toque vectoring? Big fan. Appreciate your vids
I’m here for the braaaap!!!
3:42 look at his arm
Bruh
Thanks a good explanation
Thanks most greatest video ! keep do more please
My apex seals broke just watching this video
Mr. Flexible I spun a bearing or lost a seal I feel the pain but mine was siting for ten years and I got over ten thousand miles before to really didn’t want to run any more if I’m lucky it’s just allow compression but I doubt it
you must not be servicing the car correctly
ZombieByte if your talking to me nope 3k oil changes it’s a rally car tho
Groovy Panda no i was making a very dry mechanic joke about how rotarys are no less reliable than any other engine if you take care of them properly in response to the OP
Premix your fuel😉
2 AM fuckin love this show.. 13 in a row
I hope you guys bring this show back.
Nice video my man👌
i love rx7+4 rotor
In addition, a V8 experiences combustion strokes only 4 times in one rotation of the shaft, while a 2-rotor experiences combustion six times in one rotation, just like a V12.
Cool concept. Aero guys love it because it's light compact and puts out "tons" of power. But in reality the three stoke design doest let itself well to reliability, efficiency (because the cuin is a lot bigger than they claim), and if you turbo anything it can have great power.
Thx for the info
I live in england and the "rare" in line 3 is the norm nowadays.... there are even inline 3 turbos and they are great for out sharp country roads :)
The Daihatsu Charade GTti was 30 years ahead of it's time!
B B B BUT MUH 4 CYLINDERS
"all the things that go wrong in a traditional engine, simply aren't there in a wankel"
*mazda laughs maniacaly*
*Like reliablity...*
This one has its *own* things that could go wrong
@@doktorbimmer this guy is everywhere - responding to every comment outlining the negatives of the engine.. you have a personal agenda bro?
@@iforgotmyusername0 You didn't know Wankel engines suck?
I like that he explained it understandably
The man never gets a break
Triangles Triangles TRIANGLES
Stem you never had-
YOU HAD ME?
YOU NEVER HAD ME.
(goes insane)
Stem and a circle
This was a sweet vid, totally made it all clear how these engines go. Thanx
7:59 my daughter did that at walmart.....once
Blow an apex seal?
@@lordsnivyofnottingham2948 Had a major melt down over barbie
These vids remind me of Bill Nye a bit. Great content lads!
I learn more from your videos than I did with a year in automotive class
rare inline 3? come to the EU...
Here in Brazil we kind have a lot as well, a thing interesting is that at high revs they almost sound like a Porsche flat 6
bd or just look at motorcycle engines from bikes like the fz09, 675r, speed triple etc quite common
Well, an UP TSI and a 911 Turbo are both German, turbocharged cars made by the VW Group so I guess they are the same thing?! Must be why they sound so similar
That Regular Guy they sound similiar becaue a flat six is really just two inline 3's, an inline 5 sounds really similiar to a v10 as well, since a v10 consists of two 5cyl banks
No go to Japan.