Hydraulische Anordnung zur Dämpfung der Trägheitskraft

• Main Author: GITTER, RICHARD JOHN
• Format: Patent
• Language: German
• Published: 03.03.2005
• Edition: 7
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; DREDGING; FIXED CONSTRUCTIONS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; FOUNDATIONS; HEATING; HYDRAULIC ENGINEERING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SOIL SHIFTING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

A hydraulic system is provided with a pump (42) supplying pressurized hydraulic fluid through a first supply line (44) to a closed center control valve (40). From the control valve (40) the fluid is directed through work lines (46, 48) to a hydraulic motor (36). Exhausted hydraulic fluid from the hydraulic motor (36) is directed through the control valve (40) to an exhaust line (50) having a back pressure check valve (52) set at a first pressure level. The hydraulic motor (36) is provided with a pressure relief valve (56, 58) and an anti-cavitation valve (60, 62) that are mounted in parallel with one another. The anti-cavitation valve (60, 62) is hydraulically coupled to the exhaust line (50). To keep the exhaust line (50) fully charged a second supply line (70) extends between the first supply line (44) and the exhaust line (50). The second supply line (70) is provided with a pressure reducing valve (72) that is set at a second pressure level. The second pressure level of the pressure reducing valve (72) is less than the first pressure level of the back pressure check valve (52).