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Thread: A work of pure genius! - Brilliant "Revetec" Engine

  1. #1426
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    ziiiiing ........
    "A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'

  2. #1427
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    Quote Originally Posted by Kozy
    Yes I did. The whole purpose of posting the graph, which I made especially without any labels, was to assess your level of understanding.
    Ok but being unlabeled there is next to no chance for me to give a complete explaination of what the graph shows... I guessed it had something to do with composite torque (i.e pressure times area times lever arm length combined with harmonic effects). I'm guessing it shows that for a single cylinder. Would you mind revealing what it actually is?

    Quote Originally Posted by Kozy
    It's been a few years since I paid any attention to this stuff, so it may be out of date now, but I recall he was claiming an increase in efficiency of around 30% over a traditional design. The results of my analysis showed that this was entirely possible.
    OK so you are talking about claims of total thermal efficiency. I thought maybe you were talking about some of the novel combustion characteristics.

    Quote Originally Posted by Kozy
    I don't understand the point you are making here.
    My point was that because both the classical design and the revetec design are highly variable, finding some movement that is more efficient for one doesn't prove that the other isn't also capable of same.

    Quote Originally Posted by Kozy
    That's pretty much what I did.
    Interesting, very interesting indeed.

    Quote Originally Posted by Kozy
    You are of course completely right here, however this was beyond the scope of my project, I was simply analysing the design with respect to its affect on the thermodynamic cycle. I would have liked to have gone further but time constraints tend to restrain how far you can go with these things.
    Trust me I understand how depressing time-constraints can be to the scope of a university project.

    Quote Originally Posted by Kozy
    You may have some good points, but as far as I am concerned, with the gains Brads design is theoretically capable of producing in terms of combustion efficiency, he can afford some extra mechanical losses, so long as the the gains exceed the losses, then it is still a valid design. If you are going to put an argument up then you're going to need to start backing up your theories. Calculate some theoretical friction losses, some bearing loads, rotational masses and engine harmonics, and compare them to a classical design. Prove to yourself that this doesn't stack up, then put your argument forwards.
    OK so we agree that at the moment the discussion would have to be kept theoretical (niether of us is going to build a model for practical testing at the moment). You never know your luck. However calculating thermal losses due to friction as well as bearing loads and harmonics would have to be relatively simple due to lack of data. Still I guess I could whip up some theoretical values...

    Quote Originally Posted by Kozy
    Sorry but I am not prepared to share it, not only does it contain specific design information about the trilobes granted to me personally by Brad, but it also represents a year of hard work sat infront of speadsheets and CAD programs designing and analysing the concept. I hope you can understand that its not something I am willing to give up to someone on the internet.
    Personally I haven't done anything larger than semester projects so far (looking forwards to the bigger project coming up). I understand that you are reluctant to share so much work, with what is essentially a stranger.

    Quote Originally Posted by Kozy
    Now maybe if you come back having calculated the theoretical mechanical losses, then we could have a proper technical discussion about the gains versus the losses...
    Hmmm... So if I do some calculations you would be willing to show some of the results of your hard work? I guess I could use that as an incentive. As I said though, due to lack of data I doubt my appoximations will concur with your data. Hopefully you can help out once I post the first draft
    Power, whether measured as HP, PS, or KW is what accelerates cars and gets it up to top speed. Power also determines how far you take a wall when you hit it
    Engine torque is an illusion.

  3. #1428
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    Oh my, is this post almost 7 years old ?

  4. #1429
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    Quote Originally Posted by fdv View Post
    Oh my, is this post almost 7 years old ?
    never ending story....but I am sure it will continue for a while..
    "I find the whole business of religion profoundly interesting, but it does mystify me that otherwise intelligent people take it seriously." Douglas Adams

  5. #1430
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    I know of some old cam driven aviation engines.
    The Farchaild-Caminez engine;

  6. #1431
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    Quote Originally Posted by henk4 View Post
    never ending story....but I am sure it will continue for a while..

    Hello upper neighbour.

  7. #1432
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    The title on this thread was changed wrongfully once.
    It should be A work of pure genius? instead of A work of pure genius!.

    Slowly the debate has turned into something more critical.
    From day one revetec has claims things of doubtful nature.
    3 times the torque with the same power and so on.
    Claiming 3 times the efficiency since they could produce 3 times the torque using the same fuel, but when having a look at the kW vs fuel usage it was worse than a normal gasoline engine.
    Brad has newer came up with anything useful in discussions and only refereed to he's magical design rather than having a healthy discussion about thermodynamical laws.

    I'm still highly critical to the packing since the crank have to be two times the diameter of the stroke while a normal crank will have the same diameter as the stroke.

    Now they claim to be the world most efficient engine, but under what conditions?

  8. #1433
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    Under the conditions they claim it to be confirmed in test

    The rest is mental masturbation on all fronts
    "A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'

  9. #1434
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    I spy with my little eye.....

    Some Revetec Videos on YouTube.....

    Revetec Promo Video in 720P HD
    Posted on March 29, 2011.
    [ame="http://www.youtube.com/watch?v=mXmsVecTs_M"]http://www.youtube.com/watch?v=mXmsVecTs_M[/ame]

    Revetec Technology Presentation:
    All added on April 3, 2011.
    Part 1 - [ame="http://www.youtube.com/watch?v=zBPYde8EnTE"]http://www.youtube.com/watch?v=zBPYde8EnTE[/ame]
    Part 2 - [ame="http://www.youtube.com/watch?v=pjH2I076agQ"]http://www.youtube.com/watch?v=pjH2I076agQ[/ame]
    Part 3 - [ame="http://www.youtube.com/watch?v=cUPLb6hmhLE"]http://www.youtube.com/watch?v=cUPLb6hmhLE[/ame]
    Part 4 - [ame="http://www.youtube.com/watch?v=tQVxZF1dfz8"]http://www.youtube.com/watch?v=tQVxZF1dfz8[/ame]
    Part 5 - [ame="http://www.youtube.com/watch?v=WE-4H13zUQA"]http://www.youtube.com/watch?v=WE-4H13zUQA[/ame]

    Most of the content is just a collage of past photos, video and information, but the point is...
    Why has it been created?

    In the last announcement on the Revetec website (on 13/12/2010), they stated that:
    "...we expect to travel overseas very early in 2011 to meet with the Board of Directors, Financiers and for Brad to present a technical presentation to a large number of staff in their auditorium."

    Could these videos be part or all of the presentation?
    Last edited by FireyB; 04-05-2011 at 10:48 PM. Reason: fixed links

  10. #1435
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    I'd say just the usual "awakening" to social media that companies get to at some point.

    But I'd agree, no coincidence and so suspect the company got some advice on how to do better at communicating to a much wider audience and to counter the numerous other "best engine design" animations that are widespread on social networks
    "A woman without curves is like a road without bends, you might get to your destination quicker but the ride is boring as hell'

  11. #1436
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    Thanks for information and I will try to follow the instructions.
    -----------------
    spam.... spam.... spam ... wonderful spam !!
    Last edited by Matra et Alpine; 04-08-2011 at 09:56 AM. Reason: Friday seems to be spam day for some countries :(

  12. #1437
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    [ame="http://www.youtube.com/watch?v=anwy2MPT5RE"]http://www.youtube.com/watch?v=anwy2MPT5RE[/ame]
    Never own more cars than you can keep charged batteries in...

  13. #1438
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    It seems that Australians come with some good ideas. I read in the newspaper about a weekend in South Australia has a new concept for the electric motors that are much more effective. Ill see if I can find more information.
    Last edited by Matra et Alpine; 04-14-2011 at 06:23 AM. Reason: SPAM REMOVED

  14. #1439
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    Revetec

    Im new to this site!..
    Just wanted to check in with the thoughts of everyone regarding the Revetec Engine. I'm a share holder in the company and cant wait for this take off.....So sorry, I cant join in with the Technical Stuff,,,,,some of you guys really know your stuff.

    All the best

  15. #1440
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    Quote Originally Posted by murphyboy1000 View Post
    Im new to this site!..
    Just wanted to check in with the thoughts of everyone regarding the Revetec Engine. I'm a share holder in the company and cant wait for this take off.....So sorry, I cant join in with the Technical Stuff,,,,,some of you guys really know your stuff.

    All the best
    Welcome. I hope you will have at least a week to read all the discussions here., some of which are relevant, others less so.
    "I find the whole business of religion profoundly interesting, but it does mystify me that otherwise intelligent people take it seriously." Douglas Adams

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