| 摘要 |
Energy efficient hydraulic cylinder (1) including a cylinder housing (2), with a cylindrical inner chamber and in it a movably arranged first piston (3) which separates the hydraulic cylinder into at least one first chamber (9) and one second chamber (10), said first piston (3) including a piston head (7) and a piston rod (8) said piston rod (8), in the piston rod's (8) axial direction, being provided with an inner chamber (15) which is opens in the direction of the first chamber (9). The unique feature of the present hydraulic cylinder (1) being that it includes at least one second piston (16) which is moveably arranged in the inner chamber (15) in the piston rod (8) and moveably arranged in relation to the cylinder housing (2) and that the inner chamber in the piston rod (8) via at least one connection is connected to a hydraulic circuit system that includes a pressure accumulator (21). |
