Subject: Production
From: paul lamar
Date: 11/1/2015, 7:33 PM
To: A10-Me-Earthlink


Are you guys still in production?

What is the current BSFC?

Paul Lamar


Paul, I looked what you attached, and had an idea. Would laser ignition work in the chamber? I believe it would, and could be more efficient.

What do you think?

Regards, Norm Parmley

I read somewhere laser windows in combustion chambers get covered with soot.

Paul Lamar

Hi Paul, It would be interesting to see if a laser window in a rotary, if flush with the chamber wall, would be "wiped" clean with the apex seal. Something that can't be done in a recip. Chris.
Hoskins

A sapphire or diamond window should work. It could be small so not too expensive. Murry Rozansky



A couple of problems come to mind. The lens would need to be machined/honed with the rotor housing to be a flush fit. If it was low compared to the housing surface it will not be wiped clean.
If it is a bit higher the apex seal is damaged. The hardness would need to be close to the same as the rotor surface for similar wear characteristics. It is my understanding that the laser ignition can be aimed or focused to different parts of the combustion chamber.
With the thickness of the lens that feature could be restricted.

Dale Davies


Ordinary pyrex glass would do the trick, it is already harder than the steel liner. Also it would be easy to mount flush if were made with a curve to match the chamber wall. Any angular adjustment required of the beam could be done by angling the back like a prism, refraction would do the rest.
   Chris in NZ

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