[rebel-builders] Diesel
Posted: Sun Feb 19, 2012 4:22 pm
From what i have read the biggest problem of the twin-crank diesels is
cooling the area between the pistons, no head to help take the heat away.
Gemini water cool the cylinders. The 3-cyl cranks are short, possibly an
advantage over longer ones, but there are more moving parts.
At the pace I'm building there may be an electric motor option!
paul
453R
----- Original Message -----
From: "Ken" <klehman@albedo.net>
To: <rebel-builders@dcsol.com>
Sent: Wednesday, January 23, 2008 10:22 PM
Subject: [rebel-builders] Diesel
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cooling the area between the pistons, no head to help take the heat away.
Gemini water cool the cylinders. The 3-cyl cranks are short, possibly an
advantage over longer ones, but there are more moving parts.
At the pace I'm building there may be an electric motor option!
paul
453R
----- Original Message -----
From: "Ken" <klehman@albedo.net>
To: <rebel-builders@dcsol.com>
Sent: Wednesday, January 23, 2008 10:22 PM
Subject: [rebel-builders] Diesel
Some of the claimed "advantages" are marketing hype IMO. I'm not aware
of any two stroke engines that have a camshaft. "Half length"
crankshafts are found in all horizontally opposed and "V" engines.
Without a pressurized crankcase (like a chainsaw) you pretty much have
to have a supercharger on a two stroke engine.
Much as I embrace the future of aviation diesels, I would prefer not to
double the number of crankshafts and pistons. And the generally
cleaner emissions of a 4 stroke may be a consideration. I think I'll
wait to see if the diesel Soob appears. They will sell enough to solve
the single source parts and warranty issue.
Ken
Bob Patterson wrote:Hi All !
Just back from Sebring, Florida, and the LSA show -
there was a LOT of new, neat stuff !!!
NO sign of the Raptor diesel, or whatever the new name is ...
BUT we DID find the Gemini, from Powerplant Developments,
in England - looks VERY interesting ! Size is about a 912, 3 cyl.,
6 pistons, installed weight about 190 lb, hp is 100, or 125 with a
turbo...
They have models all the way up to about 450 hp, with more
cylinders/larger bore.... PRICE about $18,000 US !!!!
No website I could see - email to: info@jadeair.co.uk
US Cell phone: 214-404-3981 -- might still be here.
Fax: +44(0)1444 400745 West Sussex
Mention it's for a Murphy .... ;-)
snip
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