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Farmall & IHC Tractors Discussion Board |
Re: Re: 1566 Hydraulics,.. Closed or Open System ????
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Posted by dumb question on October 24, 2002 at 06:37:15 from (198.185.163.7):
In Reply to: Re: 1566 Hydraulics,.. Closed or Open System ???? posted by AceS on October 24, 2002 at 04:50:32:
Most hyd systems I've seen are open center. Why would you want a closed center system in a tractor? The pump will always be requiring HP from the tractor to constantly produce working pressure (500-3000 psi) with the undesirable side effects like heat, additional wear and higher fuel consumption. I realize in small tractors their always open center system because the lower HP engins are more productive producing drawbar hp. Unless you have a really big accumulator and even then a lot of the hyd hp turns out to be waisted hp through the pressure relief valve. Just a dumb question
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