Introducing The Dudgeon Engine

[electricme]

@All

Here is the last video, as I promised, no voice over to explain it, just silent movie.

If there is anyone cleaver here, you may double up the speed if you want and maybe make it a bit longer to look at too.


jim

[t3t4]

Correct me if I am wrong, but isn't your design just like the 1950's Wankel Rotary engine that Mazda uses today? It's a very cool design eitherway, but when I see rotors in place of pistons, I can't help but think zoom zoom zoom, yeah yeah yeah yeah..lol

Remember that little jingle Mazda had for it's car commercial a few years back? That song burned itself into my head I guess.

Anyway, your design just reminds me of the Wankel engine. Here is a link, see what you think and let me know please.
http://en.wikipedia.org/wiki/Wankel_engine

Thanks

[electricme]

Hello t3t4,

I just went to the link and took a look see at the wankel engine, as you asked me to.

Looking at the moving image and reading the blurb I see the wankel needs 3 revolutions of its central shaft where as my design can do it in 1 revolution.
There are 3 firings the wankle can do, where as my engine can do 1, however if my engine does 3 revolutions, then we have it on par with the wankle.

My engine has no gearing, which is another pluss.


If someone was to bolt on another cylinder on my engine, then we have doubled the power instantly where as the wankle is fixed to it's design, unless they make the area size larger for the whole engine.
But if they were to double the wave groove between the highs and lows, then a single piston would give 2 firings per single revolution.
If the wave groove was to be doubled again, then you would get 4 firings in a single revolution.

If someone made a very large flywheel, to incorporate even more wave grooves, then you could have 6 or 8 firings in 1 revelution of the flywheel.

Then again, if someone made a single round groove and placed it as an encentric around the center of the flywheel, then you would have the same old 4 stroke principle working as a 2 revolution engine, but with no crankshaft or camshaft, see 1824 below.

Thanks t3t4

jim

[t3t4]

If someone made a very large flywheel, to incorporate even more wave grooves, then you could have 6 or 8 firings in 1 revelution of the flywheel.

Then again, if someone made a single round groove and placed it as an encentric around the center of the flywheel, then you would have the same old 4 stroke principle working as a 2 revolution engine, but with no crankshaft or camshaft.
jim

Yeah, I understand. It comes down to sequence of events, the more events per cycle or revolution, the better. Although, I imagine a point of diminishing return may be reached quickly in terms of fuel requirements and/or fuel efficiency. Decreasing parasitic drag by decreasing the amount of moving parts is great for increasing overall efficiency. But, we still have that thermal waste to deal with in the end.

I do hope that you build your engine, I'd love to see or hear some test results.

So I'm just thinking out loud here with an image of the Wankel and the piston type air plane engine in the front of my mind. One small engine with multiple combustion events, but pancake thin. The air plane engines use a master connecting rod with a bunch of smaller connecting rods attached to it. The Wankel uses egg shaped cylinders with rotors. But to add rotors, you add length to do it. Such as the Mazda 12b and 13b engines which are twin to triple rotor engines. But the 13b won't fit in a suitcase, but the 12b will, almost. The airplane engine has many cylinders and many combustion events, but it's big and heavy and still uses too many moving parts.

So you use a grooved flywheel in an eccentric rotational pattern. I'm thinking of pump gears at the moment. What if, you used something like an automatic transmission pump which are a set of gears. If you've seen them, then you know what I'm talking about. Their smooth lobed gears that run eccentrically. What if, you had a combustion event with each mesh of each lobe? That would be much like what your engine design is, but adding to it like adding cylinders on an airplane engine, and still being pancake thin, but eccentric in rotation like both yours and the Wankel engine.

Large pump gears would be like a flywheel, but it would probably be lighter. Due to it's shape and design, it could have 50 or so combustion events while consuming very little space. So it would work just like your engine and the Wankel engine, but with the added (so-called) cylinder capacity of an airplane engine, all the while not growing an inch in thickness. It would still be a 2 stroke engine though, as I'm seeing it that is. Or it could be altered to work on a half lobe base which would probably be required just to keep the thing from shaking itself right out of your car.

Yeah, large egg spinning fast ='s broken car, unless the combustion events where offset.

But anyway, your posts got me thinking, I believe you have a really cool idea and I hope I explained above what I'm seeing in my head. At least somewhat,,,lol. I wonder how much power could be produced with an engine like yours or the one I described, which is still the same thing, just different. But either way, there will be an RPM limit! Not so much for mechanical integrity, but more for the fact that gasoline can only burn just so fast, which is true of any fuel. Even jet engines have an RPM limit, but it's up there above 100,000 revs somewhere. So this is a neat project, if you need help building it, just say when.

Thanks Jim,

t3t4

[electricme]

@ t3t4,

I never seen inside a automatic gearbox, strange as that may be, and thanks for the kudos, very much appreciated along with the offer for help.

MW383 has offered to make a model on 3D engine graphing tools, which will be way much better than my simple paper cut out lol.
I'm just waiting to see his jpgs of it, but he is a very busy fellow, so I am patiently waiting, theres no hurry, it's been in my head for decades, a few months or years wont matter.

I have to congratulate you on being about the first person to take a single look at it and have been able to understand what it will be able to do.

I have posted this engine here as I want as much input as possible, any improvements that anyone can think of, lets see if they are possible, then if used, that person can brag at his own Kidd's/grand Kidd's, see I had something to do with this engine.

Last weekend I saw some large flat 12" diameter x 1 inch thick steel disks, there were 5 or 6 of them.
I might go and see them in a week an make an offer, hmmmm.

jim



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