| 摘要 |
The present invention relates to a hydraulic cylinder (100) assembly comprising a cylinder (102) and a piston rod (104) which has one end disposed in the cylinder (102). The cylinder (102) has an opening (106) and inner walls (108',108") formed by a bore, in which bore the end of the piston rod (104) travels reciprocally through the opening (106) as response to volume change of a hydraulic fluid in the cylinder (102). The cylinder (102) has a first section (110) adjacent the opening (106) provided with a narrow passage of the piston rod close to the cylinder upper inner wall (108'). The cylinder (102) has further a second section (112) spaced apart from the opening (106), the second section (112) is provided with a clearance (114) between the piston rod (104) and the lower inner wall (108") forming a chamber (115) for the hydraulic fluid. The inner upper wall (108') at the first section (110) is provided with circumferential camberings (116, 117). The present invention also relates to a cylinder for a piston rod-cylinder hydraulic assembly, and a use of a hydraulic cylinder assembly. |
