Patent ID: 6591607
Filing Date: 2003-07-15
Classification: F15B,F41F

Abstract:
A hydraulic manipulator for a hydraulic system comprising:a) a closed hydraulic circuit; b) a drive element for introducing an input drive movement into said closed hydraulic circuit; c) a control element for creating an output drive movement from said closed hydraulic circuit, said control element having a plunger cylinder which has a floating support which is supported in its longitudinal axis against a rigid mounting, the device further comprising a pressure spring for supporting said plunger cylinder to compensate for volumetric changes; and d) a storage means that includes a pressurized high-pressure hydraulic fluid reservoir connected directly to said closed hydraulic circuit; wherein the geometric volume of the hydraulic system does not change upon movement of the moveable parts of said closed hydraulic circuit; wherein said drive element is a hydraulic pump with two feed directions that are directly connected with said control element, and said hydraulic pump has a drive input shaft; and wherein a set of input drive movements are introduced at the drive input shaft of the hydraulic pump as a rotary movement.