PRESSURE PULSE DAMPER Russian patent published in 1995 - IPC

FIELD: hydraulics. SUBSTANCE: damper has perforated pipe 2 and piping flexible diaphragm 1 which encloses the pipe. The pipe and diaphragm are arranged inside housing 3. The diaphragm and housing define a gas space. There is a valving unit for communication of the gas space with a source of compressed air and the atmosphere inside the housing. The valving unit is constructed as inlet 16 and outlet 17 valves which has plungers and are mounted inside the housing separately. The plungers are arranges in the gas space for interaction with the diaphragm. The inlet valve is in communication with the source of compressed air constantly. EFFECT: enhanced efficiency of damping. 3 dwg