I would never test a new engine design in a way where I have to straddle my man bits directly over it
@grubby1975
Жыл бұрын
Well, to be honest, it sounds like they're small enough to not be hit by shrapnel if anything comes apart! 😂😂😂
@whataboutbob7967
Жыл бұрын
LMAO
@1SqueakyWheel
Жыл бұрын
That was my first thought too!
@thecombatwombat69
Жыл бұрын
@@grubby1975balls are balls
@beaujacklewellen6524
Жыл бұрын
@@thecombatwombat69big ball’s definitely get in the way more some ppl wouldn’t know 🤷🏽♂️
@powcar91
Жыл бұрын
I never thought this would end up on the internet. My professor in college showed us this. His friend was the one who made it.
@blackbeardthepirate7467
11 ай бұрын
People love innovation, heard about this at least a decade ago. It's a cool idea, good on em.
@jacobhammond5432
10 ай бұрын
I remember reading about it forever ago too lol
@Gruwg2024
9 ай бұрын
Prove it
@powcar91
9 ай бұрын
@@Gruwg2024 it’s been 10 years since I was told about it.
@1Giuseppe007
9 ай бұрын
just curios, how long ago?
@roberttharalson3172
Жыл бұрын
IIRC, the big two biggest problems were sealing against combustion pressure and lubrication of the "valves", but in the long term the valves ate away at the necessarily tight clearances with the cylinder head to the point of allowing spent gases into the intake tracts, eventually stopping the engine altogether. Poppet valves have proven to be the only demonstrably reliable setup for well over a century.
@appalachianamerican1776
Жыл бұрын
No valve is the best Valve.
@beaclaster
6 ай бұрын
@@appalachianamerican17762 stroke gang?
@r.guerreiro140
6 ай бұрын
There are also the sleeve valves of a few aeronautical engines
@jeremylakenes6859
Жыл бұрын
I heard of a big block getting excellent mileage because they could pump up compression and keep detonation low… in the 70s
@ferrumignis
Жыл бұрын
It's all relative, "excellent" milage on a big block is still pretty terrible compared to modern engines.
@SoulTouchMusic93
11 ай бұрын
you can pump up compression if there's fuck all air to compress in the cylinder. if the thing is soo undertuned it makes 160hp out of 7 liters yeah, it's not gonna detonate. it's basically quarter throttle.
@gsilva220
9 ай бұрын
The high compression ratio with no detonation basically means the valves were leaking, and compression at low RPM was low as a result.
@jeremylakenes6859
9 ай бұрын
@@gsilva220you don’t understand detonation. Just like a diesel engine, you need heat and a quick compression of air to adiabatically ignite the fuel. When the cylinder temperatures are able to stay low, detonation it kept to a minimum and allows a high compression engine. These engines I thing were sunk by other engine companies
@gsilva220
9 ай бұрын
@@jeremylakenes6859 Cylinder temperatures at the end of the commpression stroke are directly proportional to the dynamic compression ratio of an engine. The valves on this engine leak, so although the static compression ratio is high, part of the charge escapes, lowering dynamic compression ratio. Just like the wankel engine, this engine is an excellent idea. However, just like the wankel engine, it has unsolvable flaws. Take a wankel rotor, turn it on its side and you'll realize you're trying to seal a rectangular piston. Look at a coates cylinder head from up close and you'll realise you're trrying to seal a ball valve at high speed, temperature and pressure. For it to work as well as poppet valves, the rotating valves would have to be forced against the cylinder head by combustion, not away from it.
@johnostambaugh8638
Жыл бұрын
Doesn't the rotary valve have sealing problems? Something like the rotary engine.
@thomasgeorge4384
Жыл бұрын
I can't say that it definitely does, but it stands to reason. Consider the number of points where it's gotta seal, the precision of that joint and its relation to every other joint on that head, the fact that you have made every last sealing surface nonplanar and curvilinear, and the fact tlat, unlike a tappet valve, the pressure of the cylinder is gonna try to blow this little monster open instead of hold it shut... you've eliminated the camshaft, but you're making the cylinder head and valvetrain three or four times more expensive and prone to failure, and impossible to reliably fix without a CNC machine. You'd be better off trying sleeve valves again.
@bigboybuilder
Жыл бұрын
going to have dirt, lubrication and carbon problems too
@bigboybuilder
Жыл бұрын
look no further than Koenigsegg Freevalve wish i would have had my crap together back in 1986-7 when i got hold of a 2.5 chevy cyl head to
@calebz1448
Жыл бұрын
@@thomasgeorge4384I feel like with all the variable valve timing technology today that a little bit of engineering like having multiple drive gears along this rotary valve train to reduce the strain on a singular front mounted drive gear would help immensely. The true issue today is making sure not to create any designs that are inherently more reliable than the 4 stroke we know of to sell us on the electric lies
@tomconner5067
Жыл бұрын
Im pretty sure they worked that out
@ChucksCustoms
Жыл бұрын
Sealing issues was the first thought I had, but it also seems really restrictive on the exhaust side. I can’t imagine it allows the engine to breathe very well which could never really be reliable in the long run
@MAGA-Chad
Жыл бұрын
Dude, the narrator just said these things could clock near 15k Rpm. I wouldn't say that's restrictive.
@rientsdijkstra4266
8 ай бұрын
@@MAGA-Chad Question is: how much gas does it let pass and how does is scavenge at those rpm. This will determine torque and power.
@T3KFTW
Жыл бұрын
Honestly it seems like a good idea because there would be less moving parts but the problem is the sealing surface is too large at least In my opinion. With refinement this could be a much more reliable engine with a lot of performance potential via traditional variable cam systems
@konkon7767
Жыл бұрын
I remember seeing & reading about this in one of my Car Magazines back in the 1980's.
@billlongley9925
Жыл бұрын
It popped back up in the late 90s too. I remembering seeing and being amazed.
@TheEulerID
Жыл бұрын
Valve sealing will surely be a big problem with this sort of design, and it also looks very expensive to machine those cylinder heads.
@Solnoric
5 ай бұрын
Sealing was exactly the primary issue.
@jeremyst.george6711
Жыл бұрын
This was in popular mechanics back in the early 2000s
@jnicksnewstart
Жыл бұрын
It goes back to the 1980s
@ferrumignis
Жыл бұрын
@@jnicksnewstart It goes _way_ further back than that. Rotary valves were used in the early 1900s in some aero engines because the poppet valves at the time had reliability problems (material problems).
@bulletproofpepper2
Жыл бұрын
Yes, I remember that, It was going to revolutionize the automotive industry. The valves couldn’t seal the cylinders and they had to be machined perfectly and is very expensive. The geometry is backwards to be a good seal mechanism.
@MAGA-Chad
Жыл бұрын
Technically, even poppet valvetrains need to be machined perfectly so yeah. Not really understanding why so many people are talking down on this concept. It would've work had the company spent more time doing research.
@jeroenkoehorst4056
11 ай бұрын
@@MAGA-Chad Poppet valves can wear in on the seating and all you need to do is adjust the valve clearance. With these rotary valves you need a new cylinder head. The warming up fase of the engine will be a problem too. The rotary exhaust valves need room to expand during the warming up when the head is still cold. But that takes away the tight sealing you need.
@caratrimble8297
11 ай бұрын
This is a design that Smokey worked with for a time, had success with small engines but I didn't find much more about his testing......
@Kevin-vv6oe
Жыл бұрын
Had hope for this design maybe they will get it together
@SUMO31364
Жыл бұрын
looks like it will have oil issues, how do you oil those cams/rollers without burning and or getting it into the combustion chamber? also burning oil is not very predictable, thise rollers will warp due to the oil.
@mikeb1956
11 ай бұрын
The Coates facility is still in NJ, I was asked to come discuss some of their projects in the late 90s. They also tried to get an investment. Coates, definitely a genius did a great job solving the sealing problem, it was too expensive to make to be viable for anything but a custom engine. The V8s they had built ran great on a dyno stand, smooth and quiet
@darrell9832
Жыл бұрын
Any timing issue would be solved by a hydraulically advanced timing gear. I think it was Nissan who first utilized this on the 300 Z. At a given RPM a valve was activated on the oil pressure line diverting oil in the timing gear allowing the gear to advance say above 3000 or 4000 rpms. This allowed good torque at low rpm's and higher horsepower at higher rpm's and higher revs.
@markthurston601
Жыл бұрын
Vvt totally different u missed the point like a moons far off😅😅😅
@vikramkoodoye1418
Жыл бұрын
Cams be flexing during comb
@AZdirtdog
Жыл бұрын
They put a set of these on a ford sedan and made 500hp a very long time ago, they have sealing issues due to carbon and even as a kid I knew there was cleaner fuel then gas to fix that problem.
@Timbo_tango
Жыл бұрын
Yes I hear the same from my Dad who work at Ford Australia in the 70s. He also said the motor had huge RMPs(10,000) as the system save 20% on power otherwise used to drive sprung valves. At the end of the project one of the engineers put the motor in a boat that went too fast and sank due to the flywheel effect of the motor ripping itself off the mounts when the driver tried to turn the boat sharply around.
@johnnyveng4014
11 ай бұрын
pump gas is dirty on purpose; to keep us from using vapor carburetors.
@MAGA-Chad
11 ай бұрын
I thought I was the only one here who though that, AZ. Glad I came across your comment. Everyone else seems to be trash talking these cylinder heads
@pfsantos007
9 ай бұрын
It's amazing how far engine design has come. There was a lot of tinkering and many completely different designs, but modern engines are actually very similar between all the manufacturers nowadays as everyone kind of comes to the same conclusion on what works best, within constraints.
@fabianseewald7884
11 ай бұрын
my guess is that throttleling is a problem although sealing might be a concern rotaryvalve do or at least did exist in practical applications, but as far as i understand these valves woul be difficult to adjust differing rpm ranges
@KS-bo1ut
Жыл бұрын
That looks like a great idea. Too bad the R&D costs sank it. Someone should pick up where they left off, even though the auto industry is dead set on going all in on EV's.
@Cadaverine1990
Жыл бұрын
Sure we are... They may work great if you stay in the same city, but anything farther than 300 miles round trip you are going to be sitting for an hour+.
@adeadlyfart13
Жыл бұрын
EV's are a bubble market, soon it will pop
@DericCribbs
Жыл бұрын
Toyota and Mazda seem pretty resistant to the ev bandwagon.
@waldomouserd2830
Жыл бұрын
The new hydrogen engines are looking promising. They are starting to make hydrogen conversions for kit cars.
@robertthayer5779
Жыл бұрын
It's NOT the auto industry, it's the NWO industry! And it ain't working out quite like they hoped! LOL
@K-Effect
Жыл бұрын
The engine sounds so smooth not having valves clanking around
@GetOutterMeHouse
Жыл бұрын
Man this seems like such a great idea though, imagine all the movement and ticking noises it would take away from the top end of the engine. This is actually a tremendously good idea that needs to be kept alive.
@bootsclasen5015
8 ай бұрын
I could see the set up being really useful for commercial use because of reliability. I mean if the customer never gets a new timing chain or does maintence and it throws its timing it won't destroy the engine.
@XB-70Valkyrie-d3k
4 ай бұрын
The problem is when you have to turbocharge, the exhaust will be limited as the surface area in the exhaust valve is not enough to carry all the displacement of the cylinder, just imagine how much exhaust will be left in an engine with an extremely long stroke, like a Wärtsilä RTA96C
@jiggsborah7041
11 ай бұрын
I also thought about this. It's a very interesting concept and if perfected it would significantly reduce the cost of cylinder heads.
@mikehudick7074
Жыл бұрын
What's the point... how does the spherical valve pay for itself? what benefits does it bring to the IC engine that make the expense of its production etc worth while??
@masterchief3989
Жыл бұрын
Wait till it has a chipped surface, and/or needs to be serviced for maintenance.
@GetOutterMeHouse
Жыл бұрын
That goes for any valvetrain though? I mean yeah, this thing has a singular long rotating “valve train” but this is just the start of it. It could be made to be easier to replace parts and made cheaper. To be honest, if you are doing replacing in this application, it doesn’t seem that bad. I mean like new dodges and chevys are dropping valves or getting them stuck open because of their wack new VVT and piston shut down crap pretty commonly nowadays.
@KendnanGalvãoMacêdo
Жыл бұрын
metal maleável
@geezzzwdf
Жыл бұрын
Does it need cooling the valves housing will obsorb much heat ....
@MrHeuvaladao
11 ай бұрын
Suphirical valves?
@H4zZ4rDGaming1
Жыл бұрын
it looks like it would have heat dissipation issues
@ferrumignis
Жыл бұрын
And lubrication, wear and sealing problems.
@splitrockfence
Жыл бұрын
How you going to get 15-1 compression when effectively your valve is spinning?
@MrZcotty
Жыл бұрын
massive oil consumption has entered the chat. 😂😂
@danielgigandet2938
Жыл бұрын
I'd assume its a smooth running engine. No upper valvetrain noise. In the videos shown, it sounds pretty smooth.
@Rainhill1829
Жыл бұрын
Wonder how they stacked up against comparable designed like sleeve valves.
@DblyaC
6 ай бұрын
Tolerances must be insane to keep seal
@jdamage5002
11 ай бұрын
The heat transferred to the spheres has to be crazy. And I don't see any cooling ports for water. And sealing them has to be a headache. I wonder if they found a way to seal them. I bet they were red hot after a while.
@chrisbraid2907
Жыл бұрын
Looks like quite a lot of material, still suffers the reciprocating pistons … I have seen cylindrical Valves similar to these with similar sealing problems …
@klocke-hx3xl
10 ай бұрын
Thing about valves is that the higher the pressure against then, the better they seal. No one one has yet to come up with anything better.
@thelonewrangler1008
Жыл бұрын
Seems like a lot of unnecessary friction
@RaymondTaylor-g4j
7 ай бұрын
Its an old idea like almost all. There's a water speed record in the 50s i believe in australia using a gray short motor block (virtually unbreakable stock. Holden6) and a rotary valve head.
@PRIM1984
Жыл бұрын
good; excellent idea, but seems like it would lose efficiency after wear very quickly with a laterally moving sealing surface.
@kinglouis6974
Жыл бұрын
That looks limited ?? Like how much air can get in and exhaust (waist) Out ?? What am I missing
@bennygibson3046
Жыл бұрын
This needs to be revisited
@brucelownhole
Жыл бұрын
So what are the two engines at the end? Ae they spherical valve engines?
@HumbertoColonIII
7 ай бұрын
I honestly thought that motorcycle engine was going to blow up under that guy's jewls 😂😂 I'm glad he's fine.
@tonylawrence8882
Жыл бұрын
So is combustion in the spherical rotary valves . Or are the spherical valves only used for supply to the cylinders. Do the valves act as pre charge chambers and exhaust evacuation chambers . What is being used as induction . Dpes it still have an intake manifold and standatd exhaust type manifold also. Where might a person be able to read about This engine
@linusmadrone
8 ай бұрын
My only concern is possible build up of carbon on the exhaust valve part where it spins.
@Dave5843-d9m
Жыл бұрын
Fiat MultiAir is one of the best ideas. The cam drives hydraulic pistons which use oil pressure to open the valve. Oil is bled off to control valve lift and duration. There is no need gif s throttle valve but you can’t us the valve controls to start the engine.
@susanholiday7347
11 ай бұрын
What's the problem with them? It seems logical. To add something similar for the pistons would make it more likely to work.
@martintodd1971
Жыл бұрын
Love this valve train idea,, I was always thinking about something like this
@recoilrob324
Жыл бұрын
Besides the clearances needed for the valves to rotate leaking...what are you going to do about thermal expansion? Some ideas that look good on paper just don't work out in the real world.
@WAFFLNATORE
Жыл бұрын
Look up rotary valve e36, there's a guy who been engineering his own for years now, been following since about 09
@bobhsohi704
Жыл бұрын
The internal combustion engine and all its variances is just fine
@neonhomer
Жыл бұрын
I remember reading about this over 20 years ago.
@jordangibson695
Жыл бұрын
I would think that because combustion is happening INSIDE the valves, you would have problems with those valves expanding and contracting due to internal heat.
@alphazuluz
11 ай бұрын
What is this “safeericle” valve?
@frosthoe
11 ай бұрын
Nice! Nothing like a supercharged two stroke! And rotary valves are the proper way to go for infinite RPMs !! Might not have the sealing longevity needed on the street, but 2 strokes dont care about long life anyway!
@nkronert
Жыл бұрын
So I assume there are no reliable fuel consumption stats either?
@StrangeTerror
Жыл бұрын
@OskarHersch sorry buddy, you've got a lot wrong with that comment.
@juanmanuelgil3436
Жыл бұрын
@@SWL_Jamey1980?😂😂😂 incorrect 🚫
@pigtrapper1329
Жыл бұрын
@OskarHersch the valve train is gear driven... it would be easy to adjust timing. just move 1 tooth over
@ferrumignis
Жыл бұрын
@@SWL_Jamey Timing could be varied in the exact same way as modern engines do, with a phaser between the drive pulley/sprocket and the valve shaft.
@darrinbunston5932
Жыл бұрын
What you do run on the footage so then you had to show stock footage of a motorcycle and then a diesel
@SpicyInsomnia
10 ай бұрын
Imagine no valve springs resistance on the... No valve floating at high rpms.. power gains and efficiency must be crazy..
@MumfmeisterT
Жыл бұрын
I know it's super petty, but every time he says "sapherical" my brain reboots and I miss the next three things he says!
@mastergspot7699
11 ай бұрын
Now build a ONE WAY SOLID STATE TESLA VALVE ENGINE
@hibs5516
Жыл бұрын
With modern material technology this is not only easier to make, it can be made reliable.
@angryyankee9184
Жыл бұрын
I remember reading about these back in the 90's. Nobody domestic was interested and ultimately wound up being bought by a chinese company that puts them on backup generators.
@3jasom
Жыл бұрын
Did trabant have similar valves on ita crank shaft?
@seandoole6504
Жыл бұрын
It used port valves, which are entirely unrelated to this and were also used in motorcycles. The pistons still seal the ports like a conventional two-stroke.
@DavidPerez-lo4dn
9 ай бұрын
Have you ever heard of a Coats engine? Same engineering been around for a long time.
@SikterEfendi
Жыл бұрын
A solution to a problem no one has.
@edmundanderson657
Жыл бұрын
Always wondered what happened to this engine, haven't heard about it in decades. Interesting design but having done many valve jobs I would think carbon would severely score the bores and rotating parts.
@pauldunn7000
Жыл бұрын
ducati built a rotary valve engine on an Indie bike 50+ yrs ago . That thing was brutal,, it was a flat round disk ,, with a hole you could see it if you opened the carburator up and turned the engine..
@theyoutube8933
Жыл бұрын
If you only ran air through the valves and directly injected something like propane or natural gas it would work and have less fouling and carbon problems.
@jamespope2840
Жыл бұрын
Sounds smooth
@mikebunetta7420
Жыл бұрын
Did cosworth use on F1 engine?
@scottpearce7466
Жыл бұрын
Example of not sticking with one engine until perfecting it!
@greengoat5654
Жыл бұрын
This thing could really spin if the issues got figured out. No valve float, no reciprocating Mass
@MichaelBates-b4q
9 ай бұрын
It definitely looks very cool
@cafe6010
Жыл бұрын
So they just added two unrelated engines to the clip for what reason?
@Bigbriansc
Ай бұрын
This is like 40 years old. They got into industrial generator engines minimally. The hot rod community wouldn't get behind it. Extremely expensive, and sealing issues with it caused it to not last long and have blow by with few miles. At one point they offered to custom build these heads for any engine you wanted.
@dundermifflinity
Жыл бұрын
Not gonna lie, I clicked on this because I thought someone had entered a Roomba with a blade into Robot Wars / Battlebots
@White.Elemant
Жыл бұрын
"... and in theory this setup has high compression ratio, all the way up to 15 to 1..." 🙈
@MrTk6969
Жыл бұрын
Man I bet oil consumption was higher then fuel consumption
@MrZcotty
Жыл бұрын
the hilarity of not seeing that whilst still in the design phase. 😂😂 i bet he also designed a carburetor that makes an engine run on water.
@ariesmight6978
26 күн бұрын
None lubracated system short of the ball bearings. On the ends of shafts.
@haroldjackman2010
Жыл бұрын
This was a very cool design many years ago.
@buildingracingvideos4714
5 ай бұрын
I feel like rotary valves would really fuck around with pressure waves in the ports
@Jackshaft
Жыл бұрын
This design seems to only have 4 moving parts (bearings and gears) vs the many moving parts in traditional valves. I’m intrigued. It’s basically a camshaft and valve in one.
@Sauspreme
Жыл бұрын
Seems like a lot of work, cost, and complexity for valves. But pretty interesting!
@michealdavis9884
10 ай бұрын
I designed a engine likee this but mine let's the opening to line up and the pistons can suck as much fuel as needed exhaust is same way
@grapeseed427
Жыл бұрын
...and I'm so glad!
@Emguspract12
9 ай бұрын
Idea fantástica, enhorabuena
@megastick9324
Жыл бұрын
What is “ suferical”, I’m familiar with “ spherical”…
@notoriousbills
11 ай бұрын
When southerners recover a crashed ufo and put hog ass space cams in it 😂😂
@josephrosella3042
11 ай бұрын
That guy on the bike has balls,if the engine blew he wouldn't anymore 😞
@peted5217
Жыл бұрын
Rotary Valve has never found a viable application.
@edwardmyers8782
Жыл бұрын
This looks like a great idea removing all of the moving parts after the camshafts
@jessemeyer445
Жыл бұрын
That is so cool I've never seen anything like it😮
@ckane510
Жыл бұрын
Interesting design. If you could overcome the sealing issue. Supercharge and turbocharge would be essentially useless in this design as well as it would be limited by the design itself.
@danp7463
9 ай бұрын
Damnit someone created my idea.
@GERntleMAN
7 ай бұрын
Are you fucking kidding me? I sketched this up 10 years ago and only just now have the tools to start making my idea a reality and now this?
@kevinsellsit5584
Жыл бұрын
When the camshaft becomes the combustion chamber testing will get very expensive.
@benjaminlovato283
Жыл бұрын
Taking a rotation, changing to an up/ down with many parts. Keep the rotation and work with that. Fewer parts, fewer problems. No lifters to bend, no rocker arms needing adjustment. Springs, etc. The valve train harkens to the old steam engine. Need new ideas.
@RiverMersey
7 ай бұрын
Spherical? Looks like a sequence of cylindrical devices
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