| 摘要 |
A radial cylinder hydraulic motor comprises: oscillating cylinders (4, 24 54), in proximity to the outer skirt (5, 25, 55) to the crown or star of cylinder-piston groups; the pistons (3, 23, 53) of the said groups slide on a crankshaft (2, 22, 52) or eccentric shaft, or on interposed organs concentric to it, and create alternate motion in the oscillating cylinders; and it presents the respective surface of oscillation for each cylinder of the said groups, in proximity to the outer skirt, constituted by a portion of cylindrical surface (18, 27, 57) with axial direction parallel to the axis of rotation of the crankshaft or eccentric shaft and positioned in the part of skirt (5, 25, 55) including the diametral plane of lying of the said crown or star of radial cylinders; furthermore the contact between the cylindrical support surface of a bottom plate (33, 62) of each cylinder (24, 54) on the portion of cylindrical surface of oscillation (27, 57) happens because of the thrust created by the radial thrust devices (40, 70, 80) which act on parts of the said cylinder. Are described various embodiments of the contact surface between the cylinder bottom plate and a portion of the cylindrical surface of oscillation. |
