Re: hydralic systems

Posted by Greg on April 19, 2004 at 18:12:05 from (209.240.205.61):

In Reply to: hydralic systems posted by PhilCaseinPA on April 19, 2004 at 09:06:22:

A few things to clarify on hydraulic systems. No matter how fast the pump/engine is turning it is not being limited on output by the main relief valve. HYDRAULIC PUMPS PRODUCE FLOW, RESTRICTIONS IN THE SYSTEM CREATE PRESSURE. This is true no matter what system is used, closed or open center.
A closed center system must also use some type of a load sense signal to either the pump regulator to stroke it as in a piston pump, or shift a valve to allow flow as in a power steering priority valve.

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