HYDRAULIC DISTRIBUTOR WITH COMPENSATION DEVICE FOR DIRECTIONAL VALVES
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United States of America
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Issued Date -
Apr 10, 2025
app pub date -
Oct 10, 2024
filing date -
Oct 10, 2024
priority date (Note) -
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status (Latency Note)
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Abstract
An open-center valve device for operating machines includes: a first section and a second section, a high-pressure line configured in such a way as to be connected to a pump to supply an operating fluid flow rate to the sections, and a discharge line configured to be connected to an outlet of the operating fluid. Each of the sections includes a spool control element, configured in such a way as to send the fluid flow rate to the respective work ports. The valve device further includes one or more free flow segments, a series duct configured in such a way that, upon a movement from the neutral position of one of the control elements for operating one of the actuators, a return flow rate from a respective work port is supplied to a subsequent control element, progressively closing the respective free flow passage.
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