<< > << I would like to see the manual. I have taken some pictures at the
factory
 >  of the parts. Here is one of the charged cooled rotors with the integral
 >  gear. This is machined from a solid block of steel I think.
 >  Cooling air passes through this rotor on its tortuous way into
 >  the combusting chamber gaining heat in the process and limiting the
 >  density of the charge.
 >
 >  Paul Lamar >>
 >
 > That is cast iron with machined faces and bearing/gear.  Can anyone tell me
 > why the rotor face is not connected to the bearing/gear at the edge (i.e.
 > only at the center).  Here's a hint: Reduced heat transfer is an added
 > bonus...but not the "requirement".
 >
 > Jeff Spitzer

 How do you know it is cast iron and not steel? Do you think the gears
 would hold up if made from cast iron?

 It is connected at the center because that is all it takes to transfer
 the rotor face pressure to the rotor bearing and then to the e-shaft.

 Perhaps it is a pressure balance thing.

 Paul Lamar >>

Well I suppose I don't "know".  Yes, the gear can be strong enough out of the
kind of good cast iron used in rotors.

I'll wait for more guesses before commenting more on the attachment question,
your answer was not the one I was after.

Jeff Spitzer

 
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