کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
762573 896699 2006 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flow forces analysis of an open center hydraulic directional control valve sliding spool
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Flow forces analysis of an open center hydraulic directional control valve sliding spool
چکیده انگلیسی

The objective of the present paper is an experimental and numerical analysis of the driving forces on a 4/3 hydraulic open center directional control valve. The assembling of the valve has been modified to allow external control of the spool displacement and the flow force measurement. The valve is inserted in a closed hydraulic circuit and is tested with different pump flow rates as well as with different pressure drops. The results obtained show important differences between an open center valve and a closed center one, the latter having been extensively analyzed in the literature. In the first part of the sliding spool movement, a particular trend of the flow forces is observed. Indeed, the flow force acts to open the spool. Finally, a numerical analysis of the flow is performed to confirm and theoretically explain the experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 47, Issue 1, January 2006, Pages 114–131
نویسندگان
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