DEVICE FOR PRODUCING IMPACT PULSES OR VIBRATIONS FOR A CONSTRUCTION MACHINE

Abstract

The invention relates to a device and a process for producing shock pulses or vibrations for a construction machine, with a housing, a piston, which can be moved in a working space within the housing reciprocatingly between a first turning point and a second turning point, a supply of pressurized fluid through which pressurized fluid can enter and exit the working space in the region of the first turning point and the second turning point respectively, where the piston can be used to produce the shock pulses and / or vibrations during the reciprocating movement, at least one adjustable valve, through which the pressurized fluid can enter the working space and / or exit the working space, and a control unit, which is connected to the at least one adjustable valve,where the movement of the piston can be adjusted and varied in the work area by means of the control unit. According to the invention, it is provided that the control unit is configured in such a way as to move the piston with a frequency that corresponds to a resonant frequency of an overall arrangement that includes the piston and the pressurized fluid.,