Patent ID: 8870557
Filing Date: 2014-10-28
Classification: F01C,F04C

Abstract:
1. A rotor for hydraulic motor, comprising: a plurality of vanes spacedly apart inserted into a plurality of vane slots formed on the rotor respectively; wherein at least one groove is provided in outer edge of the rotor between the neighboring vanes, extending inside along the axial direction of the rotor; the groove has a first inner side and an opposite second inner side, wherein the first inner side of the groove is comb teeth-shaped; at least one reinforcing rib is provided on the groove extending along the circumferential direction of the rotor; the second inner side of the groove extends backwardly at the outer edge forming an arch shape; the reinforcing ribs are spacedly apart arranged along the rotational axial direction of the rotor; and an area of the reinforcing rib takes no more than 10% of an opening area of the groove along the circumferential direction of the rotor.