Hydraulic control valve
A technology of hydraulic control valves and spools, applied in fluid pressure actuators, servo motor components, oil supply tanks, etc., can solve problems such as maximum flow limitation, and achieve the effect of improving efficiency and power
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[0012] Before any embodiment of the invention is explained in detail, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced or being carried out in various ways.
[0013] Referring now to the sole figure, a hydraulic control valve 1 is shown. The hydraulic control valve 1 is a closed central hydraulic control valve with pressure compensation. The valve 1 may be part of a hydraulic system suitable for use on the machine. The system with control valve 1 also includes a variable displacement pump of any suitable construction, such as disclosed in US Patent No. 4,695,230, issued September 22, 1987 to Lael B. Taplin, which is hereby incorporated by reference. Inside the control valve 1, among other suitable structures, known features of closed center ...
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