open-center hydraulic system

open-center hydraulic system

open-center hydraulic systemclick for a larger image
A type of hydraulic system in which the selector valves are arranged in series with each other. Hydraulic fluid flows from the pump through the center of all the selector valves and back into the reservoir as the unit is actuated. Such a system is without any accumulator.
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References in periodicals archive ?
The advanced, open-center hydraulic system uses a dual gear pump to deliver hydraulic flow of up to 42 gpm.
This is powered by a pair of engine-driven gear pumps which supply flow through the open-center hydraulic system, also powering the three-point hitch, steering and auxiliary remotes.
The open-center hydraulic system includes a tandem pump hydraulic system that eliminates multiple pump drives.
Each machine features an open-center hydraulic system two cross-sensing variable displacement piston type pumps (8.7 gpm maximum flow in the 303CR, 13.8 gpm in the 305CR), single gear pump (6.2 gpm maximum in the 303CR, 11.2 gpm in the 305CR) and pilot pump (3.5 gpm maximum flow in both machines).