Hydraulic systems has been used in the field of construction equipments, aircraft and military equipments due to the high power demands. Hydraulic fluid power is directly proportional to the mass flow rate controlled by hydraulic pump. Fixed displacem...
Hydraulic systems has been used in the field of construction equipments, aircraft and military equipments due to the high power demands. Hydraulic fluid power is directly proportional to the mass flow rate controlled by hydraulic pump. Fixed displacement pump is less effective beca use it supply fixed mass flow rate, irrespective of varying load. but variable displacement pump is more effective in energy saving because it provides the suitable mass flow rate. Load-sensing piston pump, one type of variable displacement pump, consists of pump body for supplying the mass flow rate and load-sensing valve for feedback control of mass flow rate. In this study, the commercial numerical simulation software(AMESim) was applied for analyzing the dynamic characteristics of load-sensing piston pump with varying the size and the position of orifice in load-sensing valve.