Invention Grant
- Patent Title: Control valve with load sense signal conditioning
- Patent Title (中): 带负载感应信号调节的控制阀
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Application No.: US11772599Application Date: 2007-07-02
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Publication No.: US07921878B2Publication Date: 2011-04-12
- Inventor: Gregory T. Coolidge
- Applicant: Gregory T. Coolidge
- Applicant Address: US OH Cleveland
- Assignee: Parker Hannifin Corporation
- Current Assignee: Parker Hannifin Corporation
- Current Assignee Address: US OH Cleveland
- Agency: Renner, Otto, Boisselle & Sklar, LLP
- Main IPC: F16K11/07
- IPC: F16K11/07

Abstract:
A control valve comprises a valve body having a fluid inlet and at least one work fluid outlet 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 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.
Public/Granted literature
- US20080000535A1 CONTROL VALVE WITH LOAD SENSE SIGNAL CONDITIONING Public/Granted day:2008-01-03
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