Radial-Diametral Head

[Hans Hintermaier]

>> 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
Hi Jim,
I'll try to scan in a drawing of the head until tomorrow and put it 
on http://www.nefo.med.uni-muenchen.de/~hiha/gif/
Felix Wankel's first steps in engineering were experiments with 
turning gaskets to seal hot parts moving together. So if someone 
knew how to make a disk valve engine running, then him!
All big factories worked together in WW2. I saw books of this time
(top secret, interrnal use only) where they discribed everything 
around engines, still valid today. E. g. High speed movies of 
different diesel injecors, burning inside a comustion chamber, and 
much more. How to drill 0.038" holes 30" deep in steel, with X-ray 
fotos of the results. (they had no hi-pressure tubes for the immense 
injection-pressure of the JUMO aircraft diesel)
More tomorrow
Hans
hiha@ brain.nefo.med.uni-muenchen.de
Munich / Germany