High frequency hydraulic vibrator - has double acting piston-cylinder unit connected to control unit by pipes with back pressure valves

摘要

The hydraulic vibrator is esp. designed for the production of high frequency oscillations. It consists of a double-acting piston-cylinder unit, connected to a control appliance via fluid pipes. Fluid supply- and take-off pipes are connected to the cylinder on each side of the piston. Each pipe has aback pressure valve, and all pipes open into a common connection pipe for the appliance.