小形ラジアルピストンポンプの圧力脈動

概要

論文の詳細を見る
In a recent automobile, improvement of the dynamics by the installation of electrohydraulic control systems has been carried. The hydraulic systems are energized by a piston pump of small displacement but high pressure delivery. Recently, a simple radial piston pump of 0.34 cm^3/rev in displacement was developed. It discharges hydraulic flow through the outlet check valve but intakes without an inlet check valve, which eliminates the valve's surging problem at the inlet port but generates oil column separation in the piston chamber. This paper discusses the pressure pulsation in the piston chamber and the effect of inertia of the outlet check valve on the pressure surge. A theoretical analysis with a simple void model predicts not only the transient pressure characteristics but the reduction of the pressure surge by the lightening of the mass of the outlet check valve. The prototype with the 0.07g check valve reduces the noise level by 5dB compared to the 0.4g valve.
一般社団法人日本機械学会の論文
1990-06-25