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| 75Plus:
This video has been around since 2008 but I could not find any reference to it on the site so I am posting it. The capabilities of this engine, if proven, are mind boggling. 325 HP from 2 cylinders with 4 pistons. Funny thing, I have often thought of an engine similar to this, 2 pistons in one cylinder, but never considered it as a 2 cycle, turbo charged, diesel. http://www.engineeringtv.com/video/Opposed-Piston-Opposed-Cylinder Joe |
| Bluechip:
Joe Very interesting configuration, I wonder what the balance is like ?? Many other manufacturers have done the 2 pistons/ one cylinder concept though. Here's 6 pistons in three cylinders .. and IIRC Junkers did a very slim aircraft diesel engine with the principle. Would have to do a search for that one .. I may be wrong .. circa 1930's I think .. http://en.wikipedia.org/wiki/Napier_Deltic BC EDIT Oops, brain fart yet again... It looks like the Wiki link refers to the Junkers engine ... |
| John Stevenson:
Commer built one for their trucks, 3 cylinder, 6 pistons, finished up at 3.53 Litres and 150 BHP http://www.sa.hillman.org.au/TS3.htm For some reason Wikipedia and this site are quoting the earlier engine. Fitted in a 4 wheeler rated at 14 tons they would do 19 mpg, try asking someone with a 3.8 Jag to load 14 ton on the arse and get 19 to the gallon :lol: John S. |
| 75Plus:
--- Quote from: Bluechip on March 06, 2011, 07:00:53 PM --- Very interesting configuration, I wonder what the balance is like ?? BC --- End quote --- According to the designer balance is not a problem as the crankshaft is pushing one piston while pulling the other in each cylinder and the cylinders are 180 degrees out of phase. Joe |
| Bernd:
This looks like a redesign of the Fairbanks-Morse diesel engine used in subs and railroad locomotives. They were two cycle opposed piston engines. I believe they had two crankshafts though. Bernd Edit: Just did a quick Wiki check. Nice cut away veiw of that engine. Here's the LINK. |
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