Six stroke engine
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Six stroke engine

  1. #1
    Senior Member Hass828's Avatar
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    Default Six stroke engine

    Speaking of "superheated air" check this deal out.
    Six-stroke engine high level of efficiency

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    Different, what would it be used for?

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    gn7
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    I have a difficult time understanding how a 4 stroke works, so bare with me.

    How much work can you get from the release of compressed air in the pure air chamber, if the cylinder then has to recompress the same air in the combustion cahmber. The ONLY thing this is suppose to accomplish is a second work stroke, and the work is more than ate up having to RECOMPRESS THE SAME AIR. The added friction of the NON power strokes won't more than offset any gains, if there were any, from the "second" power stroke. But ALL that "released" energy and more from the pure air compression chamber was already consumed recompressing the air AGAIN!

    How much power can you exect if the piston is driven down by expanding hot gases being fed thru a valve, that is one 4 in the cylinder. How big can any one valve in that cylinder be if there are 4 stuffed in there?

    It MIGHT make power, but its going to take a pair of turbos and a magneto to get it.

    Bruce Crower's 6 cycle steam engine has it all over that thing.
    [URL="http://inventorspot.com/articles/different_kind_hyrid_5323"]LINK: Crower 6 stroke stream engine/URL]




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    Last edited by gn7; 12-17-2012 at 06:07 PM.

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    Or Seth, either one Budweiser's Avatar
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    Looks to work like a 4 stroke with 2 extra for a sterling engine effect... an extra power stroke of heated air. Am I looking at it right?

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    gn7
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    Quote Originally Posted by Budweiser View Post
    Looks to work like a 4 stroke with 2 extra for a sterling engine effect... an extra power stroke of heated air. Am I looking at it right?
    Thats the idea. But where did the power come from to recompress the released heated air when it gets compressed into the combustion chamber. There is no such thing as a free lunch. Compression costs energy. If the it requires more energy than the the heated pure air (the added power stroke) added, then the second compression stroke is a deal breaker.

    One thing is for sure. Valves 2 & 3 are going to need some kick ass valve springs and the pushrods and rockers to over come them when there is no pressure there to help it (strokes 2 & 6 )



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    Last edited by gn7; 12-17-2012 at 06:47 PM.

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    Quote Originally Posted by gn7 View Post
    Thats the idea. But where did the power come from to recompress the released heated air when it gets compressed into the combustion chamber. There is no such thing as a free lunch. Compression costs energy. If the it requires more energy than the the heated pure air (the added power stroke) added, then the second compression stroke is a deal breaker.

    One thing is for sure. Valves 2 & 3 are going to need some kick ass valve springs and the pushrods and rockers to over come them when there is no pressure there to help it (strokes 2 & 6 )
    My exact thoughts on this deal too. Thats why I posted it up, to see if you guys saw what I did. Just heating up pure air and opening it up to the chamber through a valve small enough to fit in there sure wouldnt privide much of a power stroke. I believe the loses would outweigh the gains.
    "if we keep doing it the same way we always do..we will always get the same results"
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  9. #7
    Or Seth, either one Budweiser's Avatar
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    Quote Originally Posted by gn7 View Post
    Thats the idea. But where did the power come from to recompress the released heated air when it gets compressed into the combustion chamber. There is no such thing as a free lunch. Compression costs energy. If the it requires more energy than the the heated pure air (the added power stroke) added, then the second compression stroke is a deal breaker.

    One thing is for sure. Valves 2 & 3 are going to need some kick ass valve springs and the pushrods and rockers to over come them when there is no pressure there to help it (strokes 2 & 6 )
    In the link that Hass put up, there is an external combustion chamber surrounded by a separate chamber for the air only stroke. My guess is the design/theory heats the air only charge through the walls of the combustion chamber. I get the theory and I suppose it would utilize the heat/energy normally lost through the cylinder head to the cooling system.

    Isn't the common belief that a third of the potential energy of an engine is soaked up in the cooling system, one third out the tail pipe, and the remaining third available at the crankshaft? Clever way to try and tap into energy that is otherwise wasted... I suppose.

    I say forget about the air only stroke. Fill the two chambers with air/fuel on their own separate strokes (strokes 1, 2, 3, &4) and lite the suckers off together (strokes 5 &6). That way you've burned the equivalent of 8 traditional strokes in only 6... a 1/4 reduction in friction!

    No shit about those valve springs. A rotary or slide valve would be better suited.

  10. #8
    gn7
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    I say use a intake, compression, power and exhaust stroke and leave it at that. If you want to harness some of the wasted energy, hook a windmill to the exhaust and turn another one to induce intake.
    What do you think of that idea Hass?


    Releasing hot gas to expend its energy on the piston, just to have the piston put the energy back in thru compression is a farsh.



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    Quote Originally Posted by gn7 View Post
    I say use a intake, compression, power and exhaust stroke and leave it at that. If you want to harness some of the wasted energy, hook a windmill to the exhaust and turn another one to induce intake.
    Hmmm. I think you might be on to something.

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    Quote Originally Posted by Budweiser View Post
    Hmmm. I think you might be on to something.
    Ya think?
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    Quote Originally Posted by gn7 View Post
    I say use a intake, compression, power and exhaust stroke and leave it at that.
    I saw a cool design that used both sides of the piston to accomplish that. It had 1/3 the parts, 1/2 the weight and 2X the power. Had a nice smell to it, too.

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    Quote Originally Posted by snoopjonnyjon View Post
    I saw a cool design that used both sides of the piston to accomplish that. It had 1/3 the parts, 1/2 the weight and 2X the power. Had a nice smell to it, too.
    Sounds like the cam engine. Intriguing design.

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    Default I guess you really CAN find anything on YouTube


  16. #14
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    Quote Originally Posted by Budweiser View Post
    Sounds like the cam engine. Intriguing design.
    This is what I was getting at. If only they made a 7.4L two stroke....

    Last edited by snoopjonnyjon; 12-18-2012 at 01:17 PM.

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