pining,twin plugging,etc...

Clare Snyder snyder at huron.net
Wed Mar 11 23:21:03 GMT 1998


Matthew B. Watts wrote:
> 
> -----Original Message-----
> From: Robert Humphris <r.humphris at indigo-avs.com>
> To: 'diy_efi at efi332.eng.ohio-state.edu' <diy_efi at efi332.eng.ohio-state.edu>
> Date: Tuesday, March 10, 1998 11:35 AM
> Subject: RE: pining,twin plugging,etc...
> 
> ---------------SNIP-------------------
> 
> > I was talking to my mate who has been working on engines
> > for about 30 years now, he told me about an 8 piston desiel
> > engine with 4 cylinder bores and two crankshafts.
> >The two pistons opposed each other and on the compression
> > stroke would move towards each other causing a masive
> > compression which would ignite the desiel and force the two
> > apart.  It worked very well but was unreliable due to the fact
> > that it had so many rotating parts...
> >
> >Rob Humphris
> 
> They use these quite regularly in the Navy for their auxiliary
> generators.  They are big monsters though.  And of course,
> those sailors spend plenty of time to make sure they always
> work when they need them.  Actually a pretty ingenious idea.
> 
> I'm still working out the details to making a two-stroke engine
> based on this principle--something small, like 200cc.  I bet it
> would be a screamer with a gear drive between the two cranks.
> The big plus is that it would be nicely balanced and could turn
> some serious RPMs with the right parts behind the pistons.
> 
> Matt

I believe the engine in question was made by Commer in Britain ( British
Chrysler?)
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