Diesel efficiency

[slowmover]

The DD engines were goners based simply on emissions non-compliance. Their advantages, otherwise, were stellar (unless you were the, uh, close-proximity operator). But they were also a real mechanics engine as their complexity was no small thing in tear down and re-assembly. Weight, size and power output could be configured almost endlessly.

Beautiful creatures internally, not unlike a big radial engine.

And, Frank Lee, there is worse than bunker fuel. Try "petroleum coke". Refinery residuals is almost euphemistic it sounds so nice given the toxic table scraps dilemma.

We'll drill till we die, baby!

Great .pdf linked. Beautifully done, well written and a helluva sales tool.

.

[skyking]

The thing that makes those big two strokes shine is constant RPM. A vehicle engine has to accelerate and decelerate all the time, and it makes it had to optimize the combustion event.
When the thing happens exactly the same speed every time, you can make the scavenge and fill patterns do what you need.

[Frank Lee]

And, Frank Lee, there is worse than bunker fuel.

Wasn't really passing judgement on the stuff; just saying it might need to be heated in order to keep crud in suspension, or to keep it from being a tank full of unpumpable gook, or something, I don't know, I've never looked it up.

Re: them turning slow: nope, their pistons speeds are higher than ours!

[slowmover]

Gotcha. Still true, though. The nasties of the refining process are a chemists nightmare it's said. A goal that, like ARMOUR, "we use everything but the squeal" (no waste) is what one hopes can be done with such an expensive product (crude oil).

[drmiller100]

Originally Posted by Frank Lee

Love to but this computer doesn't do pdfs.

you are such a monkey to post all your comments without even pretending to be inforrmed.

[drmiller100]

Originally Posted by Old Tele man

...inefficient? No. Two-stroke engines don't "waste" separate 'intermediate' cycles for intake and exhaust, so they are roughly twice as powerful for their size as four-stroke engines...and weigh less too.

...emissions, yes, they're terrible.

did YOU read the article?

[Frank Lee]

I've read about the MAN diesels before thus I am pretty well informed but THIS computer I'm on at this time doesn't do pdfs so THIS time I didn't read THIS article BUT if you find an error in my comments please let me know!

Besides, I'm almost as smart as you are so it's ALMOST all already upstairs!

[user removed]

You may find the 2 cycle is the engine of the future, especially when it is allowed to run in a very specific range of speed and load.

Like recharging a hydraulic accumulator.

Do some research on the resolution of issues with 2 cycle engines and their basic advantages start to really shine, especially if you can eliminate reciprocation.

regards
Mech

[mechman600]

Like this: EcoMotors

Apparently the next big thing, as I read in a trucker rag of some sort. Bill Gates has invested, so it must be good.

Frank Lee, you can't read PDFs but how about flash? You need flash for this one!

[Frank Lee]

My "good" computer is goobered up at the moment so I'm using an even more ancient fossil for surfing. I don't know if this thing could handle "pong".