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Re: hydraulics
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Posted by mjbrown on May 10, 2007 at 05:57:58 from (132.236.155.53):
In Reply to: Re: hydraulics posted by Jerry/Mt on May 09, 2007 at 20:54:57:
Correct.. and the open center valve is used with constant diplacement pumps like gear pumps. The open center/constant displacement system is a loop with fluid going from reservoir to pump to and through valve to reservoir. Move the valve and it diverts fluid to a cylinder to lift something. If no cylinders are connected and you move the vavle it can stall the motor because the fluid has no where to go and the C/D pump must pump fluid. With variable diplacement pumps with the vavle in center it is closed and the pump goes to idle not pumping fluid which reduces load on the engine saving fuel or allowing reserve power for the plow or whatever. Hope we have about covered it so it's understandable.
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