RADIAL PISTON TYPE HYDRAULIC MACHINE AND WIND POWER GENERATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a radial piston type hydraulic machine that can restrain hydraulic oil from leaking from the hydraulic machine, and a wind power generation device.SOLUTION: A radial piston type hydraulic machine 20 comprises: a plurality of pistons 22 arranged along radial directions of the hydraulic machine; and a cylinder block 26 provided with a plurality of cylinders 24 for guiding the plurality of pistons respectively so as to allow reciprocation along the radial directions. The cylinder block includes a forged part in which at least one internal oil passage 30A or 30B is formed so as to communicate with a plurality of hydraulic chambers formed by the plurality of pistons and the plurality of cylinders respectively.