| 摘要 |
A control valve for use in a fluid system to control the delivery of pressurized fluid to a fluid operated device. The valve comprises a valve body having a fluid inlet that may be connected to a source of pressurized fluid and at least one work fluid outlet that may be connected to the fluid operated device for supplying pressurized fluid to the fluid operated device. A valve member is movable in the valve body in a first direction from a null position to a full flow or open position for supplying flow of pressurized fluid from a feed passage to a work fluid outlet. The valve member has an output flow metering portion for metering such flow of pressurized fluid from the feed passage to the work fluid outlet as a function of the position of the valve member in the valve body. The valve also comprises a load sense signal shaping device that provides for initial flow from the feed passage to the work fluid outlet through a metering orifice during movement of the valve member from the null position to the full flow open position so as to shape an initial boost pressure signal at a load sense position upstream of the output flow metering portion of the valve member.
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