oddball engine concepts

[mrvette]

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.

About the only way they could have much chance, any igniton depending on some roller/brush contact to ME would be not capable of integration on a reliable basis....

(nothing to do with race relations, unless you consider commutators and brushes).....

:clap:

 

[Ralphy]

Maybe these guys could give us the answers.

 

[big2bird]

Anyone have a picture of the old Willys slide valve engine? Now theres a mech nightmare.

 

[JPhil]

Anyone have a picture of the old Willys slide valve engine? Now theres a mech nightmare.

Ha ha ---that was one of the ones I thought of too. Well, couldn't find a reciprocating internal combustion slide valve picture, but I did run across this. Wow, I think some people think too much.....

http://www.douglas-self.com/MUSEUM/POWER/unusualICeng/toroidalIC/toroidalIC.htm

 

[phantomjock]

Last week I got to spend a few hours in the "experimental" section of the Air Force Museum.
Here is an interesting engine - Pulse Detonation Engine - built by Scaled Composites - Burt Rutan and company.

Interesting concept. Welding 2 automobile engines together to "fire" a pulse. They mounted it in a modified Vari-Eaze, and flew at 250+ Not much goodness for most auto applications - but interesting reversing from a closed combustion - to open for thrust! Reminded me of a spark plug in a tailpipe running carbs rich on a Saturday nite!

Cheers - Jim

 

[big2bird]

Anyone have a picture of the old Willys slide valve engine? Now theres a mech nightmare.

Ha ha ---that was one of the ones I thought of too. Well, couldn't find a reciprocating internal combustion slide valve picture, but I did run across this. Wow, I think some people think too much.....

http://www.flickr.com/search/?q=willys+slide+valve+engine

 

[Ralphy]

Another one I remember is the 500 cc. oval piston Honda. The reasoning was to allow for 8 valves per cylinder. They spun the thing at around 20,000 RPM. It was said, it sounded like a 2 stroke. The bike had an inherent issue of wanting to lay down. This is a 750 I guess.



http://thekneeslider.com/archives/2010/11/01/honda-nr750-oval-piston-32-valve-v4-for-sale/

 

[mrvette]

Last week I got to spend a few hours in the "experimental" section of the Air Force Museum.
Here is an interesting engine - Pulse Detonation Engine - built by Scaled Composites - Burt Rutan and company.

Interesting concept. Welding 2 automobile engines together to "fire" a pulse. They mounted it in a modified Vari-Eaze, and flew at 250+ Not much goodness for most auto applications - but interesting reversing from a closed combustion - to open for thrust! Reminded me of a spark plug in a tailpipe running carbs rich on a Saturday nite!

Cheers - Jim

Jeebus, looks like that Datsun across the street from a few months ago....whata nitemare......the devil won on that round.....


:twitch::surrender:

 

[Ralphy]

Jim, here's your spark plug in a tail pipe.

[ame]http://www.youtube.com/watch?v=n9Xhut_nqBE&feature=related[/ame]

 

[mrvette]

Jim, here's your spark plug in a tail pipe.

http://www.youtube.com/watch?v=n9Xhut_nqBE&feature=related

Looks like the flames on a '49 Ford lo rider with spark plugs and a rich runner engine...hit the switch and blow off the fuel......I think SOME guys even tried plumbing fuel back there.....I maybe rong over that one though....

:surrender:

 

[clutchdust]

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.

I remember that. I have gotten into arguments about that engine/plane. It was said that plane killed more pilots than the Germans did. Had a really hard time turning in the opposite direction of rotation (if I remember correctly) but could turn unnaturally tightly in the direction of rotation. Most pilots were young, inexperienced pilots, tried to bank on take-off and plowed in the ground.

Another one I remember is the 500 cc. oval piston Honda. The reasoning was to allow for 8 valves per cylinder. They spun the thing at around 20,000 RPM. It was said, it sounded like a 2 stroke. The bike had an inherent issue of wanting to lay down. This is a 750 I guess.



http://thekneeslider.com/archives/2010/11/01/honda-nr750-oval-piston-32-valve-v4-for-sale/

I remember when that came out also. As I recall, it was Honda's answer to the 4-cylinder restriction in championship bike racing. It was basically a v-8 with 4 siamesed pistons. Crazy shit.

 

[Ralphy]

Jim, here's your spark plug in a tail pipe.

http://www.youtube.com/watch?v=n9Xhut_nqBE&feature=related

Looks like the flames on a '49 Ford lo rider with spark plugs and a rich runner engine...hit the switch and blow off the fuel......I think SOME guys even tried plumbing fuel back there.....I maybe rong over that one though....

:surrender:

No, you are right. My brother-in law said he used to have a fuel line in back.

 

[Ralphy]

Scuderi files patent for 'split-cycle' engine
http://www.foxnews.com/leisure/2012...atent-for-split-cycle-engine/?intcmp=features

http://video.foxnews.com/v/3929622/reinventing-the-engine

 

[Sam Cogley]

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.

According to Jay Leno, who owns one of the surviving Chrysler Turbine cars, they had most of that solved in the 60s. He says the exhaust on his car is no hotter than a regular auto exhaust, and it's not particularly loud.

 

[denpo]

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.

According to Jay Leno, who owns one of the surviving Chrysler Turbine cars, they had most of that solved in the 60s. He says the exhaust on his car is no hotter than a regular auto exhaust, and it's not particularly loud.

Here's a pic of the engine I took at Petersen Museum last week :

 

[Sam Cogley]

Jay Leno on his Chrysler Turbine: http://www.popularmechanics.com/car...leno-drives-one-of-the-last-chrysler-turbines

 

[Ralphy]

Not sure how close anyone looked at this. But it uses two pistons to do the job of one. However it fires on every stroke. Claims a 50% increase in fuel mileage. Notice the piston on the right has no plugs.

Scuderi files patent for 'split-cycle' engine
http://www.foxnews.com/leisure/2012...atent-for-split-cycle-engine/?intcmp=features

http://video.foxnews.com/v/3929622/reinventing-the-engine

 

[Sam Cogley]

It looks like the big piston on the right has two plugs, and the little one on the left has none. Weird.

 

[Ralphy]

[ame]http://www.youtube.com/watch?v=kO-eLvzqWyM[/ame]


[ame]http://www.youtube.com/watch?v=WID-WH27J1c&feature=related[/ame]

Doyle Rotary Split Cycle
[ame]http://www.youtube.com/watch?v=lJ1kxbtsBSU&feature=fvwrel[/ame]

 

[Ralphy]

Variable Compression Ratio Car Engine: MCE-5 VCR-i
[ame]http://www.youtube.com/watch?v=DdM2VbbdtB4&feature=related[/ame]