Kentetsu

I know this belongs in the lounge, but nobody with an ounce of self respect goes there anyway, right?

A while back there was some discussion about alternative engine designs, and the Radial engine was thrown out there with no really good explanation of how it works. So when I ran across this video on Youtube, I figured I'd share. A very nice demonstration of the concept, and worth taking a look at....

http://www.youtube.com/watch?v=yVHNl...elated&search=

twinkletoes

iTrader: (17)

Interesting. Still has a lot of moving parts. It would be real big too. Nothing like a rotary

chedda_j

well i didnt get to check out your engine but the one im thinking of is the "MYT Engine" As in Mighty. Half the size of a rotary engine, using a socket gearing and two idavidual arms that act as pistons, when one arm turns it comes nearly in contact with the next arm on a rotational patern to create to combustion chambers, one on either side of the rod. Think about it. Check out the site if you need further informartion. This power plant has a compression ratio of 32:1 and runs on pure organic diesel, one, half the size of a rotary, produces 500 hp and 100 miles/litre. This is all off the top of my head, the numbers might be alittle off but not far.

84GSREX

Would be cool to see in a car but not practical. The problem withe radial engines such as that one, is that they are very limited to high RPM the highest rpm radial iv'e seen has been 3K. also it's air cooled so unless your moving a large amount of air through it your gonna overheat it and crack cooling fins on it. also tranny would be an issue since all you have is a direct drive propeller on those. What would work but again be unpractical is a horizontally opposed air cooled engine, similar to a Bug engine. But hey can't hurt to imagine....lol oh yeah im an aircraft tech.... so i have wondered myself....lol

clbsinvaders

The MYT is freaking BA. It's amazing what the guy came up with. I hope it gets developed someday like the Wankel and put into a deserving car.

chedda_j

Thank you, i was waiting for someone else to chime in





this one here, next to the creater, 850 hp.

no_name

Radial engines are old school technology man. They have been around since the early 1900's. They are greate because they are lighter then conventional piston engine layouts. However, in cars they are inefficent because you would have to lie them down on their face which can cause some oil problems. Also manny radials built after the second world war have gear reduction units. One prime example is the m-14 engine, famous in russian aeropbatics aircraft. Those have a 3:1 reduction gear box on them. Redline is 9 grand.

twinkletoes

iTrader: (17)

I want to know how the heck that ^ shiny thing up there is producing 500+ horses

Kentetsu

Yeah, I know it's old tech and not feasible for use in a car. I was just adding information to a prior discussion on different engine types because I'm such a nice guy...

chedda_j

The MYT™ Engine has the potential to replace all the existing internal combustion engines and jet engines. With 40 times higher power to weight ratio, low parts count, low maintenance, high mechanical efficienty, and low pollution, the MYT™ Engine will benefit airplane, big ship, 18 wheeler, SUV, passenger car, even down to carry on power generator applications. The MYT™ Engine as a pump/compressor also exceeds exisiting pumps/compressors in providing massive pressure, volume, and flow, all in one unit.

Equiv. To 32 Cylinder, 4-stroke-cycle Diesel
Bore--mm(in) 76.2(3)
Stroke--mm(in) 95.25(3.75)
Displacement-- Cu in(L) 848 (13.8)**
Aspiration Normally
Compression Ratio 25:1
Rotation (from Fly Wheel.. CCW/CW
Cooling System Oil Cooling

chedda_j

http://www.angellabsllc.com/video/mytengine3d.wmv

no_name

Has a working prototype of the MYT been made?

It's operation confuses me. From the link above, it seems as though it is abunch of masses bouncing of eachother. The physicis does not seem to work. Can somone help me out.

boostedHULK

iTrader: (1)

that's an awesome design, but when that engine starts wearing out (according to the info, that may not be for a very long time) or misfires even once, wouldn't you end up with collission between two of those "pistons"? I understand that you'd have to have a lot of lost compression to not get it to detonate if it's got a compression ratio of 32:1...i guess that would make it an easy million mile engine in theory. Lets build some of these things so we can get gas prices down, maybe be able to afford to drive these gas guzzlers

slo

iTrader: (1)

http://thekneeslider.com/archives/20...ed-motorcycle/

defakto

I'd love to see a working version in a working field with some testing. Neat idea on the MYT.

DAVID GRIMES

The rotary engine works great with hydrogen. Water and oxygen as a byproduct. Like 85% of the HP head to head vs. gasoline. It's coming.

PercentSevenC

It's also horribly inefficient to produce and store. There is actually more environmental damage done in the production of hydrogen than just using gasoline, and the vehicles have lower range and closer the 50% of the power (the hydrogen-powered RX-8 made only 108HP while running on hydrogen) and very poor range.

Not saying hydrogen is a waste of time, just that we need to get a LOT better at it before it's a viable replacement for gasoline.

In the meantime, I suggest biodiesel...

PercentSevenC

That MYT engine is ridiculous. Imagine one of those in an FB!

I am also interested in the development shown by the rand cam engine. There is a running prototype that makes 42HP at 2000RPM from a 6" by 6" cylinder on diesel. Not nearly as cool-sounding as the MYT engine, but it is proven, and still much better than anything currently out there.

chedda_j

Someone mentioned that the MYT engine physics wouldnt work because there would just be a clash of pistons bouncing back and forth, as i mentioned in the first response, the connecting rods (only thing i could think to call them) are connected to a ratchet style gear that is super strong so that once the connecting rods have moved so far they cant move back.

There is an experiment show on the MYT engine website if you search for it, it shows a working air pump MYT engine. So in theory it will work, concidering that the MYT engine hasnt been out for two years, i think they have made damn good start. Think of a 6" engine that produced 200 hp...hahaha rediculas.

PercentSevenC

No ignition with it yet, though. Still cool that they have a air-pump one, but they noted on their site that there are still a few issues left to solve (notably being able to mass-produce them and getting the thing to stand up to its own power). But they are making awesome progress in such little time. I hope they can get the issues ironed out and we can start seeing them in production in the not-too-distant future.