Anyone have any info on the best apex seals to use for aircraft use.  Racing Beat says that
the cast iron ones work fine for most street engines.

Also does anyone have any information on modifying the rotor housings for pports?  Such as
location of ports, size of port holes, any kind of drawings etc?
Royce

There is an outfit in England called Hurley engineering that makes some interesting
apex seals. Some people like them. The link is on the ACRE NL web site but here
it is again. http://www.hurley-engineering.ltd.uk/

We have looked at their site, their idea on oiling the apex seals from inside the rotor instead of through the induction system is interesting.  We e-mailed them about that and their apex seals, but they haven't replied yet. (been about 3 weeks)

That is unusually Hurley is usually pretty responsive.
Try again. It might have slipped through the cracks. PL

You don't have a lot of choice on the P Port design because you kind of have
to squeeze it in between tension bolts.

The last one is an idea Ken Powell had for a variable timing P port.

Paul Lamar

Did Ken ever do anything with this idea?

Ken has the parts. He just has not got around to installing them.
Here are some pictures. I don't expect a lot of advantages
for an aircraft engine however as aircraft engines run WOT most of
the time. PL

Has anyone written a book, or tech papers on doing a Pport?
Royce

Well the classic book is Rotary Engine by Kenichi Yamamoto.
There were two printings. 1969 and 1981. Both published by Toyo Kogyo
in english. You might be able to find them used on the internet.
Plus several dozen SAE and other orgs tech papers. There is a list of
those on the ACRE NL web site. I have both books and many papers so if
you have a specific technical question I can usually find the answer.

Paul Lamar
 
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