Russell Kent wrote:

snip

Jeff Spitzer replied:

Does a piston have torque?  

More snips.

Well, I think the u joint coupling is an ok mental exercise, but probably
unworkable in reality.  But just to pick nits... Jeff, I don't think that
Vance's statement requires a piston to have torque, since a piston does
not go through volumetric change by rotation, but rather through linear
reciprocation.

Russell Kent

 
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