And you thought 4-strokes where the "next big thing"

[powdersledder]

Check this out, a 6-stroke engine that doesn't need a cooling system.

http://www.autoweek.com/apps/pbcs.dll/article?AID=/20060227/FREE/302270007/1023/THISWEEKSISSUE

 

[Rotax_Kid]

I can't recall which bike manufacturer had it on their site..but I thought it was Ducati who had similar about 3 years ago....had step by step poste don their site with pictures and everything...quite interesting

 

[sledhead699]

thats pretty sweet

 

[SAWYER]

6 strokes are too heavy

 

[Ex-Member]

Wow... that's a big jump in efficiency.

Wonder how much he's going to get paid to keep quiet...

 

[hilinerider]

read about a carb in the 50's or 60's that a guy invented that but steam in with the intake air that made the old car get 40 to 50 mpg with virtually no carbon, they pulled the heads after a thousand miles and the piston were shinny new, supposedly the patents were bought up and it was never put into production,


what could it be like by now

 

[Gimpster]

Remember when taping a penny to the top of your carb was supposed to increase fuel economy ?
Ran across a lot of cars in the 80's with them on the carb

----- Gimpster -----

 

[Tackbtch]

read about a carb in the 50's or 60's that a guy invented that but steam in with the intake air that made the old car get 40 to 50 mpg with virtually no carbon, they pulled the heads after a thousand miles and the piston were shinny new, supposedly the patents were bought up and it was never put into production,


what could it be like by now

I remember that! Seems like the oil company's snatched that one up real quick. Dino

 

[Wade]

You notice the story was from 02/27/2006? This design was first invented in 1915, but Bruce Crower is still hoping he will get a patent. It would basically be a diesel engine block, but wouldn't need a radiator, or fan, or fancy exhaust pollution control system, and it's possible to recycle the water, to reduce the weight of water you have too carry.

It's real. Your recovering the exhaust waste heat. Probably never work for a snowmobile though.

Six Stroke Engines

Crower

 

[banditpowdercoat]

Is that not the same |Crower from Crower camshafts? If so, he's no dummy. May for sure be on to someting

Edit, read to the bottom, it is the founder of Crower camshafts

 

[SNOW JW]

Ok ya all cool but when will see it in our trucks???

I can see it on the Semi Trucks for sure.

 

[m8magicandmystery]

read about a carb in the 50's or 60's that a guy invented that but steam in with the intake air that made the old car get 40 to 50 mpg with virtually no carbon, they pulled the heads after a thousand miles and the piston were shinny new, supposedly the patents were bought up and it was never put into production,


what could it be like by now

some old farm tractors had water injection

 

[m8magicandmystery]

Remember when taping a penny to the top of your carb was supposed to increase fuel economy ?
Ran across a lot of cars in the 80's with them on the carb

----- Gimpster -----

it sure helped to tape on batteries years ago...corrosion would attack the pennies instead of the terminals

 

[RGM]

You notice the story was from 02/27/2006? This design was first invented in 1915, but Bruce Crower is still hoping he will get a patent. It would basically be a diesel engine block, but wouldn't need a radiator, or fan, or fancy exhaust pollution control system, and it's possible to recycle the water, to reduce the weight of water you have too carry.

It's real. Your recovering the exhaust waste heat. Probably never work for a snowmobile though.

Six Stroke Engines

Crower

With Skidoo new DI they could have a seperate injector for water that could fire every 3rd or 4th cylce or have it computerized! I better get a patent on that tomorrow.LOL

 

[teeroy]

6 strokes are too heavy

that's funny right there....

 

[Gimpster]

it sure helped to tape on batteries years ago...corrosion would attack the pennies instead of the terminals

Works as an anode. I never did get the coin on the carb thing

----- Gimpster -----

 

[Wade]

With Skidoo new DI they could have a seperate injector for water that could fire every 3rd or 4th cylce or have it computerized! I better get a patent on that tomorrow.LOL

I don't think the head could handle the compression of water expanding. So, you couldn't use much, plus the water would freeze. But, who knows, might work. Could just shovel snow in, after the head gets warm, and switch it from 2 stroke to 4 stroke mode.

 

[powderman800]

I might be wrong

I might be wrong but if 4-strokes lack the powder of an equivalant displacment 2-stroke, then wouldn't that 6-stroke need some serious displacment or forced induction system to compete? If 4-stokes are heavy, then wouldn't that 6-stroke be WAY heavy? To push the equvilant horsepower out of that 6-stroke motor and keep wieght down by reducing the displacement, then they would make alot of heat, hence the need for a cooling system cooling system? Water injection in a turbo-charged/super-charged 4 stroke motor would be a good step though. I'm think I'm just gonna save my money for turbo 650cc 3-cyclinder rotary engine (400+ HP on pump gas) when they come out in sleds

Powder Man

 

[Wade]

I might be wrong but if 4-strokes lack the powder of an equivalant displacment 2-stroke, then wouldn't that 6-stroke need some serious displacment or forced induction system to compete? If 4-stokes are heavy, then wouldn't that 6-stroke be WAY heavy? To push the equvilant horsepower out of that 6-stroke motor and keep wieght down by reducing the displacement, then they would make alot of heat, hence the need for a cooling system cooling system? Water injection in a turbo-charged/super-charged 4 stroke motor would be a good step though. I'm think I'm just gonna save my money for turbo 650cc 3-cyclinder rotary engine (400+ HP on pump gas) when they come out in sleds

Powder Man

No, actually the average power generated per stroke, would be higher. Basically, the 6 stroke is a 4 stroke, normal diesel engine, that he converted to run on gasoline. So, stroke 1, suck, stroke 2 compress, stroke 3 bang, stroke 4 exhaust, now stroke 5 raise piston and inject water towards top of stroke, water boils to steam; which is a 1 to 1600 expansion, which pushes cylinder down (stroke 6) and exhausts steam towards bottom of stroke, then go back to stroke 1 and do again.

So, in 4 strokes you get a push, then in 2 strokes you get a push. So, you get a push every 3 strokes on average, rather than every 4 strokes in a normal motor. A 2 stroke motor gets a push every 2 strokes on average. So, it's between the two. The water boiling to steam sucks all the heat out of the motor's block and pistons. No cooling system needed. And half your pushes are pollution free. It brilliant, as long as you can find a block and piston that will take that heavy of a thermal cycle.

 

[MARCUSO]

I dunno...

Mixing water, or water vapour into an enclosed chamber...

1. blowby
2. rusty bearings
3. lack of lubrication

sounds like a BIG revamping of engine part compositions.

What is the expansion factor of Gasoline??

Also with a diesel, those things can create a TON of heat, that is one reason they have a high oil capacity, and the exhaust is super hot too.