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http://dx.doi.org/10.7839/ksfc.2018.15.3.049

Basic Design for Development of IMV for MCV  

Huh, Junyoung (School of Mechatronic Engineering, Korea University of Technology and Education)
Jung, Gyu Hong (Department of Computer Aided Mechatronic Engineering, Daejin University)
Publication Information
Journal of Drive and Control / v.15, no.3, 2018 , pp. 49-56 More about this Journal
Abstract
Construction machinery is used to improve productivity in civil engineering work and construction work, and it is a lengthy operation, and consumes considerable fuel to cope with large loads. As a result, productivity and fuel consumption of the construction machine become the main deciding factors. In the hydraulic system of the excavator, the main control valve is the most critical position for control. The flow distribution for control performance is achieved by the metering orifice, that causes critical energy loss. To improve this, we propose a combination of a three port proportional pressure reducing valve and a poppet type flow control valve as an IMV to replace the existing spool type MCV. To validate the proposal, we analyze static characteristics by modeling mathematically, and analyze dynamic characteristics. Simulation using the AMESim software on the regeneration circuit of the boom cylinder up-down operation, verifies the energy-saving effect compared to the existing MCV when IMV is used.
Keywords
Independent Metering Valve(IMV); Excxavator; Valve Design; Main Control Valve;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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