Radial-Diametral Head

[Jim Davies]

On Tue, 17 Sep 1996, Hans Hintermaier wrote:

> 
> Hi Stuart,
> no, it was not aspin, they could not make it long-lasting, because it 
> was not a disk, but a cone. It's hard to keep distance as small as 
> possible between the cone and the head.
> A disk valve system as you describe was successfully tested in WW2 by
> BMW,  but didn't reach production stage. 

Any more information on the BMW engine? Junkers made a WW2 era
disc valve V8 aluminum engine for torpedos. power output was 275hp
at 3600 rpm. Interestingly enough, one Felix Wankel developed it.

jim Davies