インラインアキュムレータを用いた自己調節形油圧脈動抑制装置

概要

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In order to suppress pressure pulsation in hydraulic lines, bladder type accumulators are used widely. Especially, in-line accumulators whose bladder gas pressure is adjusted appropriately show outstanding performances. The effective range of the bladder gas pressure, however, is quite narrow and the performances drastically reduce according to even a slight change of mean hydraulic pressure, length and diameter of pipe, etc. In the present paper, firstly, the fundamental characteristics of the in-line accumulator have been investigated in detail by using frequency analysis. Secondly, a self-adjustable hydraulic pulsation suppressing system has been developed by attaching pressure transducers, a board computer with a universal pulse processor, hydraulic to pneumatic converter, etc. to the accumulator. As the result, it has been confirmed that the developed system is remarkably effective in suppression of the pulsation when mean hydraulic pressure changes frequently.
公益社団法人精密工学会の論文
1992-11-05