Napier Deltic:



Crower six stroke:
http://en.wikipedia.org/wiki/Crower_six_stroke


Just thought I'd share.

3/12/2009 8:13:04 PM

The Napier Deltic is kinda strange, but it shares major design features with some time-tested, rather well-known engines.

The Junkers Jumo Diesel...twin crank, opposed piston engine...in an aircraft no doubt.

Fairbanks-Morse built lots of engines in the twin-crank, opposed-piston configuration. Most were for locomotive or ship use. My dad was on a Coast Guard icebreaker that had 6 of them.

For the record...all of these engines are two stroke diesels.

[Edited on March 12, 2009 at 8:55 PM. Reason : blah]

3/12/2009 8:54:50 PM

saabs

3/12/2009 8:55:48 PM

^Porsches

What was the point of a one word post? Elaborate yo.

3/12/2009 9:11:58 PM

i was just answering to a weird engine concept

3/12/2009 9:22:50 PM

the saab variable compression engine isn't really that weird but was unique. still 4 cycle otto at heart.

3/13/2009 8:13:45 AM

^ thanks, that makes more sense than just "saab."

3/13/2009 8:29:49 AM

that twincrank design looks like it'd need boost to run. and it looks like it'd tear up some rings a lot faster.

3/13/2009 8:56:41 AM

Keep in mind the ports are rounded just like a conventional two-stroke engine. And yes, all two-stroke diesels, regardless of design, require boost to run.

The Roots-style supercharger (namely the 6-71)...like you see on so many drag cars, etc. actually saw use first on the Detroit 6-71 diesel...

3/13/2009 9:23:37 AM

3/13/2009 9:48:50 AM

Quote :

"And yes, all two-stroke diesels, regardless of design, require boost to run."

3/13/2009 10:17:15 AM

^not a diesel, those require a glow plug (duh) to run.

NOT

COMPRESSION

IGNITION

3/13/2009 11:08:21 AM

i thought the glowplug was just to start it and after that pretty much doesn't do much.

i dunno though. i just know my revo is fast as fuuck.

3/13/2009 11:16:01 AM

It could be considered a hot-head diesel...

There are model diesel engines that are purely compression ignition. They use a fuel comprised of kerosene, ether, and lubricating oil, and sometimes a little bit of something like MEK peroxide for an initiator.

Glow plug engines fire using catalytic-initiated combustion. The plug's element is platinum.

3/13/2009 12:06:18 PM

FACK. what he said^

[Edited on March 13, 2009 at 12:45 PM. Reason : nevermind]

3/13/2009 12:45:24 PM