Paul,

Wonder if you have dimension / drawing of 13B Rotor, I want to price
it out for Si-Al Alloy to reduce weight. Thought it might benefit all
those who want a lighter weight engine.

Henry


Jeff has the dwgs. He has been working on a titanium version.

What is the working temperature of Si Al?

The rotors run 500 F in some places.

Paul Lamar


Paul

There is a NASA paper on Si-Al on your website, that answers the
above.

450 F TO 700 F is the ideal.

http://www.rotaryeng.net/**aluminum-alloy-rotors2.pdf<http://www.rotaryeng.net/aluminum-alloy-rotors2.pdf




Cheers

Phillip R. Hinds Ashmore QLD Australia


Not sure if it is the same alloy in China. I notice that price on die
casted aluminum piston is quite inexpensive in China. Since my company is
doing an aluminum box using extruded aluminum, I notice that some suppliers
here can do high quality die cast work, so it might be worth looking into.

Henry





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