Subject: Metering Pump Flow Rate
From: ACRE NL
Date: 5/24/2001, 7:31 PM


Richard Sohn wrote:
 >
 > I finally completed the flow rate tests with a metering pump and
adapter.
 > The pump was run with an electric motor at 6000 RPM crank speed.
since
the
pump is operating on positive displacement, the flow rate changes
linear
with
RPM.
 > The pump used was from a '87 13B Turbo, and is mechanically
controlled.
 > All four lines where feed into one graduated cylinder, the pump
feed
tank
was placed 6" higher above the pump.
 >
 > At 6000RPM crank speed and 48deg. control lever opening angle, the
flow
rate is 498cc or .498Liter/hour.
 > Opening the control lever to 90deg.resulted in a flow rate of
.688Liter/
hour.
 > The 90deg. position seems to be the maximum for the pump. A run
with the
lever at 180deg. did not change the flow rate.
 >
 > Richard.


Richard
I was under the impression that the oil pump drive turned at 1/2 the
e-shaft
rate.  When you say that the pump was run with an electric motor at 6000
RPM
crank speed, are you turning the pump drive at 3000 rpm?  I will be
using
your pump drive and external reservoir on my engine ( which I just
received
from Bruce Turrentine)

Bill Schertz
KIS Cruiser #4045

Richard Sohn wrote:

This is correct, the pump does run at half crank speed, however, it
obviously has no meaning for running the engine. The only place where
you can influence the flow rate is the throttle linkage.
Richard
www.gdsys.net/WWWmembers/unicorn/
 


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