John Gibbons wrote:
I asked whether anyone was using a separate oil pump for PRSU lube a
couple of months back and someone on the list was all ready doing
that. I took a look at a spare engine tonight and it looks like it
might be feasible to make a small housing to house a stock 13b oil
pump and mount it in the crank angle sensor location using the CAS
shaft for the drive. Trigger the ignition off the flywheel. This
should provide plenty of volume and pressure for the PRSU. Two
things make me wonder though. What is the gear ratio of the CAS
drive as compared to the engine oil pump and would this yield a
suitable pump speed ? As the pump would be higher than the PRSU
would you be able to keep the pump primed by installing a check
valve in the pickup line and a low pressure relief valve on the
outlet side ?
John
The AirCraft Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/
Copyright 1998-2003 All world wide rights reserved.