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From: "Steven W. Boese" <SBoese@uwyo.edu>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: RE: [FlyRotary] Re: Oil Injection Pump setting
Thread-Topic: [FlyRotary] Re: Oil Injection Pump setting
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Date: Wed, 28 Nov 2012 15:55:34 +0000
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Tracy,

On my 1986 13B, I connected a cable from the throttle body to the OMP adjus=
ter lever and operated it similar to how it was in the car: minimum lever t=
ravel at idle and maximum at WOT.  If the throttle was adjusted so that it =
was closed just enough to avoid decreasing MAP when at max MAP at altitude,=
 the average oil delivery was between 0.9 and 1.0 oz/gal.  If the throttle =
was opened farther without increasing the MAP, oil would accumulate in the =
crankcase.  I don't have the oil delivery rate number for that condition bu=
t might be able to go back in my records and get an estimate.  Whether or n=
ot this was a good arrangement may be in question since this is the engine =
that developed apex seal chatter marks, wore through the chrome of the roto=
r housing, and lost compression after about 300 hr of aircraft use.

The post 2008 Renesis that I have has two solenoid driven pumps, one supply=
ing two nozzles (1 for each rotor)  and the other supplying four nozzles (2=
 for each rotor).  These could be driven with a driver similar to a fuel in=
jector driver with the frequency determining the oil delivery rate since th=
e piston stroke is not variable.  I haven't tried to use them since togethe=
r, they weigh over 4 lb.

Steve Boese
RV6A, 1986 13B NA, RD1A, EC2

________________________________________
From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of =
Tracy [rwstracy@gmail.com]
Sent: Wednesday, November 28, 2012 7:05 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Oil Injection Pump setting

How have you guys using the OMP adjusted the injection amount?   Have you f=
ound it good enough to set it to maximum and just let the engine rpm vary t=
he amount?   If not,  about what percentage of the adjuster lever travel di=
d you end up with and what oz per gal of fuel did that equal?

Any info appreciated!
Tracy

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