On Thu, 18 Jan 2007 21:39:24 -0500 Allan Streib <[EMAIL PROTECTED]> wrote:
> "Darrell W. Sigmon" <[EMAIL PROTECTED]> writes: > > > Werner, I have a technical question for you or others. Why do ALL > > radial engines have odd cylinders, like 1,3,5,7,9? There is a > > logical answer, what is it? > > In a 4 stroke radial engine, it's so that the firing order can be > every other cylinder. > > http://en.wikipedia.org/wiki/Radial_engine It also mentions, Diesel radials While the vast majority of radial engines have been produced for gasoline fuels, the Nordberg Manufacturing Company of the US developed and produced a series of large radial diesel engines from the 1940s. Designed initially for electricity production in aluminium smelters, these engines differed from the norm of radial design in having identical connecting rods in all cylinders, lacking the master/slave rod usually found. The engine design also permitted even numbers of cylinders in a single rank with the cylinders being fired in consecutive order. The engines were a two-cycle design and were also available in a dual-fuel gas/diesel model. A number of powerhouse installations utilising large numbers of these engines were made in the US.[1] [1] http://www.oldengine.org/members/diesel/Nordberg/Nordmenu.htm http://www.oldengine.org/ Craig
