DEVICE FOR ACTUATING A HYDROSTATIC DRIVE DEVICE FOR ACTUATING A HYDROSTATIC DRIVE

摘要

PCT No. PCT/AT96/00015 Sec. 371 Date Aug. 1, 1997 Sec. 102(e) Date Aug. 1, 1997 PCT Filed Jan. 31, 1996 PCT Pub. No. WO96/23980 PCT Pub. Date Aug. 8, 1996A device for the operation of a hydrostatic drive (1) having a periodically operable switch valve (2) which connects a resonant pipe (4) connected with the hydrostatic drive (1) for the formation of standing pressure waves in the hydraulic fluid under resonant conditions alternately to a pressure-fluid supply line (5) and to a return line (6). In order to create advantageous control condition, the resonant pipe (4) has a pressure outlet (7) in an oscillation node in the standing pressure waves, and that the switch times of the switch valve (2) be controllable with constant switch frequency.