Subject: Rotary timeing alternator mounting
From: ACRE NL
Date: 6/29/2002, 9:02 AM


Paul are the triggers hall effect, or something else
Also what software do you use to add the comments, lines etc to the
JPEGs you send
Royce

I think the 93's and up are magnetic. Tracy might know.

Paul Lamar


The Mazda sensors are magnetic variable reluctor type.  Much more
reliable
than Hall effect.
The 3rd gen sensor setup is physically different but electrically it
looks
the same to the controller.
 Timing of the 'G' pulse is slightly different but not enough to require
different logic.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com


What is a 'G' pulse Tracy?

Paul Lamar


The 'G' signal indicates 40 deg BTDC on rotor 1.  The other sensor 'SE' give
an output every 30 deg of crank rotation.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

Thanks Tracy. As I think about it we did discuss this about three years
ago. 

BTW one could orient the prop so rotor one came up first for
hand propping. A window in the cowl could view a mark on the
flywheel. It may take several turns of the prop with the switch
off to get the prop at the proper angle relative to the mark
on the flywheel for hand propping as the gear reduction is
not an integer. With switch on both the fuel injection pulse and the
ignition trigger would have to come at the right time.

180 degrees on the prop of course is 390 degrees on the
engine. This might be a good thing for one rotor engines.
Where weight is far more critical. I think it is doable
but expensive to develop.

Paul Lamar
 
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