Abstract
We applied an independent metering valve to excavator hydraulic systems in order to verify its effect on energy reduction in excavators through flow regeneration. The structure and modes of independent metering valve were introduced. Then, an excavator hydraulic system was modeled with independent metering valve configuration. Simulations compared power consumption of pump between excavator hydraulic systems with a conventional main control valve (MCV) and independent metering valve configuration (IMV). Through this comparative study, the IMV’s effectiveness on energy saving in the excavator system was analyzed.
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