New diesel engine design.
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    Superglidesport's Avatar
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    New diesel engine design.

    Here's a new horizontally opposed diesel engine design by EcoMotors that I found pretty interesting. They call it opposed-piston opposed-cylinder (opoc®) engine technology.

    There are a few videos that show it in operation along with suggested applications.

    http://www.ecomotors.com/sites/defau...block-loop.gif

    OPOC Engine Test | EcoMotors

    The Challenge | EcoMotors
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    GTT's Pilot in Command (PIC) farmgirl19's Avatar
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    Am I seeing that correctly? No cylinder head?? I guess someone thought it up for a reason, but it sure seems odd. Appears it would be harder to look inside, with that set up, but maybe someone could use a scope after removing an injector nozzle.
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    Keeper of the GTT Cookies dieselshadow's Avatar
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    Fairbanks Morse has used a similar design since before WW2. Cool design.
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    Superglidesport's Avatar
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    Quote Originally Posted by farmgirl19 View Post
    Am I seeing that correctly? No cylinder head?? I guess someone thought it up for a reason, but it sure seems odd. Appears it would be harder to look inside, with that set up, but maybe someone could use a scope after removing an injector nozzle.
    The opposed pistons form the combustion chamber when both are at respective TDC. The outboard con & guide rods arrangement is enclosed by the use of a head cover. I'm surprised you weren't asking about intake and exhaust valves.

    This is a two-stroke diesel but a bit different than the old Detroit Diesels that I worked on a long time ago. Here's more information that you may find interesting.

    Inside Ecomotors' Revolutionary High-Efficiency Engine - The Truth About Cars
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    Impressive. Very interesting stuff!

    AKfish
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    Keeper of the GTT Cookies dieselshadow's Avatar
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    I got to admit, I love seeing cool new technology like this. Even if it's a pipe dream, I like to see how this stuff works. I can spend hours getting lost in watching these videos.
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    Superglidesport's Avatar
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    Quote Originally Posted by dieselshadow View Post
    Fairbanks Morse has used a similar design since before WW2. Cool design.
    The Fairbanks Morse opposed cylinder, dual crankshaft engines were very popular in diesel-electric drive and auxiliary power applications. They were used extensively in Naval surface craft and submarines. Also used in locomotives. Powerful (two-stroke). Simple & Reliable (Less moving parts). My Dad was familiar with them as a Navy Chief Electrician's Mate during WW II.
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    Keeper of the GTT Cookies dieselshadow's Avatar
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    New diesel engine design.

    We had a couple FM 8 cylinder opposed crankshaft engines at one of the powerhouses. They were old and cantankerous at times. They leaked oil and even caught fire once in a while. But they were pretty neat engines. I really liked the EMD 645 series V20's we had as our blackstart engines. Nothing sounds quite like an EMD spooling up.
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    Quote Originally Posted by Gizmo2 View Post
    Dieselshadow is my Hero.


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    Hiya,

    Sorta reminds me of a horizontal duplex steam engine, now I'm really showing my age.....

    Interesting that they chose a turbocharger for the induction, shows that it's more of a fixed load engine best suited to stationary or auxiliary power needs rather than variable load such as automotive. Wonder what the torque/CI ratios are?

    Tom

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    Keeper of the GTT Cookies dieselshadow's Avatar
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    Quote Originally Posted by tomd999 View Post
    Hiya,

    Sorta reminds me of a horizontal duplex steam engine, now I'm really showing my age.....

    Interesting that they chose a turbocharger for the induction, shows that it's more of a fixed load engine best suited to stationary or auxiliary power needs rather than variable load such as automotive. Wonder what the torque/CI ratios are?

    Tom
    The article that Frank linked to in post #4 says the engines use a hybrid electric turbocharger. The motor spools the turbo at low RPM and acts like a generator at higher RPM. Pretty neat stuff.
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    2720 w/ 200CX FEL
    , Ken's weld-on hooks, Fit Rite Hydraulics Top and Tilt kit, Artillian forks.
    1954 60 - getting full restoration, 1964
    110 round fender in the shop for crustoration
    Ferris IS3200Zzero turn mower

    Quote Originally Posted by Gizmo2 View Post
    Dieselshadow is my Hero.


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