From a couple of days ag; . . .

At 06:51 AM 5/8/2006, Russell McMahon wrote:
>On our local ebay equivalent.
>5 kW in.
>14 kW out
>Pure magic!
>
> 
>http://www.trademe.co.nz/Business-farming-industry/Farming/Other/auction-55651233.htm
>
>In = 6.5 HP ~= 5kW
>
>Out = 40 litres/minute x 3000 psi
>
>40 litre = 0.04 m^3
>3000 psi ~= 205 atmospheres ~= 21 MPa
>
>Power = energy/second =
>
>     0.04 x 21E6/60 = 14 kW
>
>14/5 = 2.8 x energy or
>1.8x free energy.

The key phrase is "2 stage log splitter pump".  The similar pumps 
I've seen locally have a low pressure stage that moves lots of fluid, 
then changes to the high pressure / low volume stage automatically 
when the line pressure increases.

Specifically intended for moving a hydraulic ram quickly to get it to 
the position where the actual work is needed and ideally suited for 
log splitting applications.

dwayne

-- 
Dwayne Reid   <dwayner@planet.eon.net>
Trinity Electronics Systems Ltd    Edmonton, AB, CANADA
(780) 489-3199 voice          (780) 487-6397 fax

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