I would think putting the driven in flat head locating pins near the

center would

allow the flat steel plates to expand more or less than the aluminum

end housing.

We could put heat sink compound between the steel and the aluminum end

housing.

The outer edges of the steel sheet could be captured by the rotor

housing.

Two piece formed steel side exhaust ports could be welded to the steel

sheet.

Paul Lamar

Paul, This would work if you located the center and then floated
the rest of the plate. If you welded the exhaust ports to the thin
side plate I believe you would have horrible problems. I have done
several systems that have had thin heated plates, they are always
a problem. They can be made to work but it isn't as easy as it
seems. Using a side exhaust (rx-8 style) might be more than you
wanted to try on the first go. Not impossible but I think that after
you made it all work that you would think the detonation gun
coatings were cheap by comparison.
Bill Jepson

It would certainly take some experimenting to find the optimum thickness.
Heck 1/4 inch steel plates would be a big improvement over an all cast

iron end

housing. I really don't think they will run much over 400 to 500 F.

Detonation gun coated end housings are well over $1000 per surface.
I met this retired Union Carbide Engineer at the Geneva auto show that was

called

in by Felix Wankel to explain detonation gun coatings. He told me a funny
story. He said, and I paraphrase here, "Herr Dr. Wankel, let me tell you

what this is going

to cost before I tell you the technical details." Felix got perturbed and

said "I don't

care what it cost, tell me the details anyway." After he was done

explaining the

technical details about detonation gun coatings he then told Felix what it

would

cost and Felix got red in the face and went ballistic. :)

Unfortunately I did not get the gentleman's name from Union Carbide but he

promised

to send me email so he may be on here as we speak.

Paul Lamar

Bill,

I was going to e-mail you on this but the thread is going along nicely - so
what say you on 1/4" steel and would mild steel with nitrite treatment do
the job ?

I was thinking of attaching it at the centre and with about 4 stand-offs
bolted through the aluminium housing - the edge being supported by a ridge
cut into the housing  and held in place by the clamping action of the rotor
housing when bolted -up.
George (down under)
George (down under)

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