oddball engine concepts

denpo

denpo

Carburated Nihilist
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I not even close to a M/E but those concepts are funny, downright funny...

I bet efficiency and durability relate to the Wankel in practicality.....

if not worse....

:hissyfit:
 
The problems with turbines for highway use--

Noise
Heat
Fuel Consumption
Heat

Not real complicated to run, the latest stuff is pretty much "push the button MAX!" Full FADEC control so the operator is more of a monitor than a participant.

At full throttle, the exhaust runs around 915* at the end of a 4' tailpipe.
 
This sort of stuff reminds me of that super frustrating gas range I had to change the igniter on yesterday, suffice to say it took over a hour to do a simple 2 bolt job, just because some M/E had his head on upside down.....

:smash::eek::clap:
 
mrvette said:
I not even close to a M/E but those concepts are funny, downright funny...

I bet efficiency and durability relate to the Wankel in practicality.....

if not worse....

:hissyfit:
Click to expand...


That would mean a star/radial engine would be inefficient and not durable...I wonder why it made it into that many planes.

[ame]http://www.youtube.com/watch?v=yVHNlVI8rBE[/ame]
 
Twin_Turbo said:
mrvette said:
I not even close to a M/E but those concepts are funny, downright funny...

I bet efficiency and durability relate to the Wankel in practicality.....

if not worse....

:hissyfit:
Click to expand...


That would mean a star/radial engine would be inefficient and not durable...I wonder why it made it into that many planes.

[ame]http://www.youtube.com/watch?v=yVHNlVI8rBE[/ame]
Click to expand...

Yeh, but all the con rods connect to one throw on the crank not that crazy toggle operation like shown in the 'new' ideas....all I see is stresses enough to equal a wife on her period.....:clap::bomb::suicide:
 
mrvette said:
Yeh, but all the con rods connect to one throw on the crank not that crazy toggle operation like shown in the 'new' ideas....all I see is stresses enough to equal a wife on her period.....:clap::bomb::suicide:
Click to expand...

Gene,
WWII pilots used to fly in with 2 or 3 cylinders shot off, as in GONE.
 
big2bird said:
mrvette said:
Yeh, but all the con rods connect to one throw on the crank not that crazy toggle operation like shown in the 'new' ideas....all I see is stresses enough to equal a wife on her period.....:clap::bomb::suicide:
Click to expand...

Gene,
WWII pilots used to fly in with 2 or 3 cylinders shot off, as in GONE.
Click to expand...

I have heard those stories, and the synch fire of the nose gun with the prop for obvious reasons too......:D funny how us tech heads hear all the same shit,...no matter where we live...:yahoo::flash:
 
How about the Villella Gyro Reciprocating Engine, Read about the design when I was a kid.
The cylinders and block rotated not the crank.

http://en.wikipedia.org/wiki/Rotary_engine

villella-gyro-reciprocating-engine.jpg
 
The engine (rotary) on the Sopwith Camel of WW 1 had the crankshaft bolted to the airframe and the propeller mounted on the crankcase. The cylinders and main case all were spinning when it ran. No real carb on that one either- power was controlled by switching the ignition on and off. And it ran on castor oil.
Overall, it makes a good case for why to balance an engine.
 
TimAT said:
The engine (rotary) on the Sopwith Camel of WW 1 had the crankshaft bolted to the airframe and the propeller mounted on the crankcase. The cylinders and main case all were spinning when it ran. No real carb on that one either- power was controlled by switching the ignition on and off. And it ran on castor oil.
Overall, it makes a good case for why to balance an engine.
Click to expand...

:shocking: U said WHAT?? hoo drunk? you or me??

somehow I can't imagine....


:shocking: so if the cyl case/crankcase rotates, how in hell to carry spark to the tops of the cylinders....this I gotta see....

:shocking::shocking:
 
TimAT said:
The engine (rotary) on the Sopwith Camel of WW 1 had the crankshaft bolted to the airframe and the propeller mounted on the crankcase. The cylinders and main case all were spinning when it ran. No real carb on that one either- power was controlled by switching the ignition on and off. And it ran on castor oil.
Overall, it makes a good case for why to balance an engine.
Click to expand...

I thought of that one too.

http://www.animatedengines.com/gnome.html

And how about this one?

http://www.animatedengines.com/coomber.html
 
This thread is getting seriously interesting.

One question for the experts :
Do you think the way almost all car engines work now is just a random choice that stuck or the result of a "natural selection".
Selected over price? simplicity? reliability?
 
Natural selection, evolution, from the technology & sources & marketing & economics available at the time. The innovation was/is no less, but the technology improves, and some designs were/are too complicated or just not cost effective for production at the time. Changes happen, thoughts become habits, become ruts. I still believe steam could be a viable power plant for autos, if we could accept the fact that it may take a minute or two to get rolling after starting up....Think where that could be using modern technology...

http://www.damninteresting.com/the-last-great-steam-car/

http://en.wikipedia.org/wiki/Doble_steam_car

If I could have my choice of any--ANY--car in the world, I think it would be a 1928 Model E Doble roadster.

PS: Tim, it didn't run on castor oil, but the "carburetor" was on the fixed part of the crankcase, feeding the cylinders through a flapper valve on the bottom of the pistons similar to todays two-stroke engines. Lubrication was castor oil, the purest & best engine oil at the time, mixed with the fuel in a "total loss" lube system (antique motorcycle guys know what that is---no return or recirc, pump it in, blow it out, keep the reservoir full) introduced into the rotating crankcase and flung out the heads 360* spraying all over the whole plane. One of the main reasons for the engine cowling on rotaries was to try to reduce the oil spray over the plane & especially the pilot.
 
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If I remember the article correct. The motor was in a Corvair. It sorta reminded me of a pancake motor in a Aurora HO car. Except it was in the rear. Good question about the spark. I would guess there was a pickup the plugs would pass by.

Aurora_tjet_chassis.jpg
 
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