Opposed Piston Diesel Engines

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danmanjones's picture

ugh. that voice

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Fullauto223cal's picture

Jesus, you aren't kidding.

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backdraft's picture
Beta Tester

I don't get it. 

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Fullauto223cal's picture

It's fucking annoying.

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backdraft's picture
Beta Tester

Vocal fry?

I'm not a native English speaker so I don't really even notice it, unless it's on a valley girl level.

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Fullauto223cal's picture

HA!!! Take that Musk!!!

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daftcunt's picture

Dunno. I wanted to dismiss this from the start but a lot of the presentation actually does make sense. The issue I see is that there are a lot of wheels, and thus mass, coupling the two crankshafts, which all needs aligning perfectly. 2 stroke is simple with few moving parts.

 

The problem is that they now start condemning the clean (i.e. low CO2) diesel engines because of particle emmissions. 

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backdraft's picture
Beta Tester

Heres an interesting idea from YT comments. Don't know if he's trolling or could this actually work.

 

I love it! Now they need to add steam injection and make it 65% efficient. If you don't believe me look it up. I thought of it in 2007 after I bought a diesel truck in 2006 and eventually went back to school to become a mechanical engineer to develop this and other ideas. Then last year I found out that someone else is doing research on it, and proved that by injecting steam(that is heated by the exhaust around and after the catalytic converter thereby preventing it from getting too hot and reclaiming the waste energy) into the cylinder at the right time, the steam is heated further by combustion and cools the combustion below 1500 degrees celcius which prevents nitric oxide production but adds to the average combustion pressure throughout the powerstroke, and increases the mass flowrate and expansion through the turbo thereby increasing turbo efficiency as well as boost pressure. Both of these increase the power and efficiency of a diesel engine. It also has the huge advantage of not needing all of the horrible power and efficiency robbing exhaust gas recirculation systems to prevent nitric oxide because your combustion temps stay low enough to prevent their creation. Also the reduced temperatures mean less waste heat transferred through the cylinder walls, increasing efficiency again. It's a win - win situation that only works with diesels, and has the chance of making the diesel cleaner burning than any gasoline engine. The diesel engine is the engine of the future.

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daftcunt's picture
Woodsman's picture

I'm not an engineer and it sounds plausible but there are other things to consider.  Diesel engines like to be "wet", which is why nearly all mechanics recommend adding fuel conditioner to ultra low sulphur diesel to lubricate the fueling system and combustion chamber.  I know water/methonal injection systems increase efficiency of diesels and decrease EGTs (I'm considering putting a kit on my truck).  Diesels are definitely the greatest combustion engine.

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daftcunt's picture

rather tan expensive additives you can add a small amount of 2 stroke oil on every refuel.

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Woodsman's picture

Very true.  Every fill I put in a fuel conditioner and ashless tc-w3 2 stroke oil because I'm a maintenance Nazi but from what i hear trucks with the newer fancy injectors don't like it as much.

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daftcunt's picture

I don't know. My Jeep WG 2.7CRD has almost 300k km on the clock and still runs fine without additives. I will shorten oil change intervals now from 20k km to 10k km. Always used oil from a supermarket chain.

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