ラジアルシリンダ形可変容量ポンプの低粘度流体制御特性

概要

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A radial cylinder pump of which variable displacement is controlled by a pulse flow servomechanism has been applied to a diesel-fuel flow control system. This pump converts mechanical moment to hydraulic output by a fluid-force couple mechanism instead of conventional sliding cams or pistons, which reduces not only mechanical friction force and flow resistance of inlet / outlet ports, but controlling force of variable displacement mechanism. This paper describes steady state and dynamic characteristics of the pump by making a prototype of maximum displacement of D_p=48 cm^3/rev controlled by 3-port PWM switching valves. The pump delivers flow rate of 30 L/min at a rotational speed of N_t=1500 rpm and pressure of 14 MPa with mechanical efficiency of η<pt>=95% and volumetric of η<pv>=90%, and changes flow rates within 50 ms for 20% step response of variable displacement
一般社団法人日本機械学会の論文
1999-03-25