Subject: water pump test suggestion
From: ACRE
Date: 12/7/2003, 6:46 AM


Vance W Jaqua wrote:

I have benn running some quicky experiments vis-a-vis power
requirements for water pumps. We have mentioned the dsirability
of a DC motor so we could measure volta and amps for watts.
Actually one of those 2+ horsepower routers with a series
wound brush type motor is perfectly suited to operation
on DC probably limit the voltage a bit because of lower
resistance withot the inductive resistance when not on AC.
Some quick tests on some of my disk griders show very
satisfactory operation on rectified AC with a variac for
voltage change - Vance

I am about to run your water pump dyno this weekend Vance.
I need to remove the pump for the test dyno test engine.

I will transfer the flow meter and the pressure gauges to
the dyno engine so we can see what kind of pressure drops and flows
we are getting throughout a real rotary engine cooling system.

BTW do you have an automotive shock absorbers lying around I can use
on the dyno to damp torque vibration?

Paul Lamar


Paul - I checked my numerous and various junk boxes and did not
turn up any old shocks. Pep boys might be a good place to
check - they usually have them out in the open so you can
check for size and end connections -
Looking forward to some rough check power numbers, I think
they really are lower than we have been thinking.

 Vance

OK Thanks Vance. I forgot to order another pulley so all I will be able
to test today is what you have or about 4000 RPM.

Paul Lamar
 
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