PRESSURE FLUCTUATION DAMPER FOR PNEUMOHYDRAULIC SYSTEMS Russian patent published in 1999 - IPC

FIELD: dampening pressure fluctuations in pipe lines. SUBSTANCE: pressure fluctuation damper includes cylindrical housing closed on two sides by means of covers with inlet and outlet branch pipes; perforated tube and dampening members are arranged inside housing. Branch pipes are provided with perforated tubular inserts for forming circular blind passages between inserts and inner walls of branch pipes. Blind circular passages are oriented to inlet by their open part. perforated passages in tubular inserts are made at engine relative to their axis. EFFECT: enhanced efficiency of dampening pressure fluctuations and flow rate of working medium; enhanced operational reliability; reduced resistance; reduced power requirements; extended operational capabilities. 3 cl, 2 dwg