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LARGE diesels

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Carleton M

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Nov 28, 1997, 3:00:00 AM11/28/97
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In a message dated 97-11-26 14:24:42 EST, you write:

<<
Wasn't the first diesel a converted steam engine with four foot bore and
stroke?

Didn't it burn powdered coal?

Didn't it blow up after a few (at most) ignitions?


At 11:30 AM 11/26/97 -0500, Dave Pierson wrote:
>>> Some of my friends consider a 74 ci V Twin M/C
>>> engine large. I describe visiting EMD & looking at the 710 engine & then
>>> mention thats 710 ci per cylinder. Their eyes glaze over. The step to
>>> Marine Diesel Engine sizes is about as large AGAIN.
>
>>LARGE marine diesels, by MAN, Sulzer, etc. have bores from 800-950+
>>mm, strokes 2400-3000+ mm. It will be a while before we see
>>anything like that on the latest from GMLG/GE<G>.
> Ooooooookay.
>
> 950 mm == 37.4", 18.7" radius
> 3M == 118.1" stroke.
>
> ci = 118*(3.14*(18.7**2)) = 129,567 cubic inches.
> (per cylinder.... 8)>>)
> Unless i've dropped a decimal.....
>
> grins
> dwp
>
>>

Geez, you inchpound fanatics.

Far easier to round off 950 mm to about 1 meter and 3000 mm to 3 meters and do
the math:

1 x 3 x 3.14 = 9.42 cubic meters or 9420 liters per cylinder (a liter is 0.1 x
0.1 x 0.1 cubic meter; there are 1000 liters in a cubic meter; two liters is a
large soda bottle or a Super Big Gulp from 7-11). (Average displacement of
all cylinders in a car is 2.0 - 5.6 liters, depending on whether it's a Toyota
or a Caddy.) 9.42 cubic meters is a whole lot. It's like getting topsoil
delivered to your house 10 times over.

MAN and Sulzer DO NOT build to inchpound. (The kindest comment I've heard
from Europeans about our system is that it is "quaint". It goes downhill from
there to "weird" and "difficult" and past that.) EMD apparently still does --
for now, at least, until they want to export locomotives (you can't export
inchpound any more, and especially not after 1999). It's likely they already
build locomotives to metric standards (does anyone know?) but just change the
measurements to inchpound for USA consumption.

(Note to the METRIC group: This was from the RAILROAD list but you would be
interested too.)

cm

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