Awesome! I actually designed an engine, with 2 crankshafts, to do this same thing, but, it was all in my head, never did it in real life. This is a cool idea, and we likely will see more of this!
http://www.engineeringtv.com:80/video/Opposed-Piston-Opposed-Cylinder
> Awesome! I actually designed an engine, with 2 crankshafts, to do this same thing, but, it was all in my head, never did it in real life. This is a cool idea, and we likely will see more of this!
>
>> http://www.engineeringtv.com:80/video/Opposed-Piston-Opposed-Cylinderbr >
Excellent concept!
Just be sure to regularly change your timing belt...
That is cool that there is no timing belt, lifters, valves, cam shaft, distributer, spark plugs, ect.
Opposed Piston Is Not A New Idea
Fairbanks Morse makes opposed piston diesel engines with two crankshafts. They still see marine service, but during WWII they were used in submarines and after the war in diesel locomotives.
http://en.wikipedia.org/wiki/Fairbanks-Morse
Junkers made a succesful 6 cylinder opposed piston diesel aircraft engine.
http://en.wikipedia.org/wiki/Fairbanks-Morse
The Doxford Engine Works of the UK designed and built very large opposed-piston engines for marine use. These engines differ in design from Fairbanks-Morse engines by having external connecting rods linking the upper and lower pistons, thus requiring a single crankshaft. The first engine of this type was developed by Karl Otto Keller in 1912. Doxford obtained a sole UK license from Oechelhauser and Junkers to build this design of engine. After World War I, these engines were produced in a number of models, such as the P and J series, with outputs as high as 20,000 horsepower (15,000 kW). Certain models were license-built in the US. Production of Doxford engines in the UK ceased in 1980.
http://www.doxford-engine.com/keller.htm
What I believe is new is placing opposed piston cylinders in a boxer configuration.
Paul in PA
Opposed Piston Is Not A New Idea
Thanks. I never knew that it was an old idea.
N
Opposed Piston Is Not A New Idea
Neat idea. I had never heard of it either. It seems well suited to diesel ignition. A rotary design would seem better, as you don't have all that mass constanly changing direction. The Wankel engine has a more compact size to power output than reciprocating engines and may have a use as a range extending generator for electric vehicles.
http://library.thinkquest.org/C006011/english/sites/wankel.php3?v=2
Opposed Piston Is Not A New Idea
single engine Cessnas, Pipers and Beechcrafts have opposed engines.
At least the older ones where essentially glorified lawnmower engines. The new ones are more complicated as far as the fuel injection and ignition.
Dave
The engines that you are talking about, are "Boxer" (opposed cylinder) engines, not opposed piston engines. Pretty much the same layout as Porsche and Volkswagon engines (and Corvairs).
Of course I have been wrong before...
Loyal
Dave
OK that is different. I didn't watch the video before.
It looks like a boxer but with two pistons per cylinder instead of one. Seems like it would be wider than a normal engine.
