I'ma just leave this here

"bob and john" (bobandjohn) 10/20/2014 at 15:14 • Filed to: None

5

36

For Sweden > bob and john 10/20/2014 at 15:15

1

Where do the valves go?

Bluecold > For Sweden 10/20/2014 at 15:16

3

two stroke diesel

Twism > For Sweden 10/20/2014 at 15:17

0

In the middle of the cylindrical chamber, maybe?
Intake on top, and exhaust under?

bob and john > For Sweden 10/20/2014 at 15:17

0

right where the pistons meet (top and bottom)

Sweet Trav > bob and john 10/20/2014 at 15:18

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con rods look a little weak.

ttyymmnn > bob and john 10/20/2014 at 15:18

0

The man in the iron mask > bob and john 10/20/2014 at 15:21

2

I dont like it. I think its going to blow any moment. Also those LONG rods may bend and break any moment.

HammerheadFistpunch > bob and john 10/20/2014 at 15:22

2

Ill see your OPEC engine and raise you a deltic

bob and john > The man in the iron mask 10/20/2014 at 15:24

1

good thing the power pulls on them!

it was something I found online, though it looked cool.

unclevanos (Ovaltine Jenkins) > bob and john 10/20/2014 at 15:26

0

The oppo engine.

noise > bob and john 10/20/2014 at 15:28

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So its a 2 cylinder

but a 4 banger?

bob and john > noise 10/20/2014 at 15:30

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2 cylinder, 2 banger.
but 4 pistons

Laird Andrew Neby Bradleigh > bob and john 10/20/2014 at 15:31

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I'ma just leave this :)

Baby Deltic (opposed piston diesel)

http://en.wikipedia.org/wiki/Napier_De…

BigBlock440 > The man in the iron mask 10/20/2014 at 15:34

1

But there's 2 of them

Laird Andrew Neby Bradleigh > HammerheadFistpunch 10/20/2014 at 15:34

0

Deltics is DA SHIT :) The sound they make is just awesome.

miadaman? yes please > bob and john 10/20/2014 at 15:41

0

Neat idea but what would the advantage of this be? I mean it's not exactly the extra power since you still got 4 pistons, and certainly you will have a fun time finding an engine bay to house it in. Force balancing? Why not boxer/flat then?

Color me confused, is there an article/website to go with it?

LappingLuke > bob and john 10/20/2014 at 15:42

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One side is pulling the other side is pushing at all times. If they both pulled in opposite directions it wouldn't move.

Laird Andrew Neby Bradleigh > The man in the iron mask 10/20/2014 at 15:44

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Search for Napier Deltic :)

bob and john > LappingLuke 10/20/2014 at 15:44

1

on the power stroke the piston gets pushed back, so it pulls on the longrods. after the powerstroke the longrods pull the piston back. (if its a 2 stroke, done)
if its a 4, there is only 1 stroke where there is compression on the longrods

The man in the iron mask > BigBlock440 10/20/2014 at 15:45

0

well thats true

The man in the iron mask > bob and john 10/20/2014 at 15:46

0

thats true, they are just pulled . I was wrong.

bob and john > miadaman? yes please 10/20/2014 at 15:48

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just a .gif I found on 9gag.

look like a high torque motor. as the explosion gets to push 2 pistons instead of piston and block.

bob and john > The man in the iron mask 10/20/2014 at 15:49

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happens tot he best of us, dont worry.

have castle un-able to argue :P

miadaman? yes please > bob and john 10/20/2014 at 15:54

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Surprised I never bumped into this contraption before:

http://auto.howstuffworks.com/opposed-piston…

with a neat illustration on OPOC's 2-stroke operation.

Stupidru > bob and john 10/20/2014 at 16:09

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Seems like the pistons on the outside would be wearing away on those guides/slides quite a bit

bob and john > Stupidru 10/20/2014 at 16:16

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seems like pistons themselves would wear away at the engine block too no?

Racescort666 > bob and john 10/20/2014 at 16:24

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I believe you were looking for this: http://www.ecomotors.com

As far as I know, they haven't been able to meet emissions yet. Although they've got some pretty wild claims when it comes to efficiency and power density.

Racescort666 > miadaman? yes please 10/20/2014 at 16:25

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I believe you are looking for this: http://www.ecomotors.com

miadaman? yes please > Racescort666 10/20/2014 at 16:28

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Yeap, found the answer in encyclopedia of "how does things work" as well. Still need to wrap my head around how it's a 2-stroke though.

Racescort666 > miadaman? yes please 10/20/2014 at 16:36

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One outside piston's travel crosses the intake port the opposing inner piston's travel covers the inside port. The cranks are offset so that the exhaust port opens first then the intake, rather than having the exhaust a little higher up on the cylinder wall than the intake. This is how the exhaust and intake ports "open" to let exhaust gasses out and charge air in. I think EcoMotors has a decent video on their website.

fink stinger > bob and john 10/20/2014 at 18:16

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Looks like it's probably the smoothest V2 ever.

bob and john > fink stinger 10/20/2014 at 18:25

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Its a flat...not a V...but IDK if I should call it a 2 or a 4

fink stinger > bob and john 10/20/2014 at 18:49

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I was poking at the internet arguing about whether or not a flat engine is a 180º V. The inner pistons are definitely of the flat/180º V, not boxer. Near as I can figure, this is what we are looking at:

http://en.wikipedia.org/wiki/Opposed-p…

Stupidru > bob and john 10/21/2014 at 07:43

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i'm not 100% what you mean there, but you got me thinking that it would be one funky looking block

miadaman? yes please > Racescort666 10/21/2014 at 08:23

0

I didn't get a chance to read the site, but from what I gathered yesterday the exhausts are "pushed" out via the internal combustion force rather using the piston movement. By doing that, after power stroke wouldn't you have a chamber full of burnt exhaust at atm pressure? Unless FI is used how do you replace these exhaust w/ fresh air that has no means of forcing its way in?

Racescort666 > miadaman? yes please 10/21/2014 at 09:37

1

It's supercharged too.