AN IMPROVED RIM DUCTS FOR FLOATING RIM OF HYDROGENERATORS

摘要

An improved rim ducts for floating rim of hydrogenerator to generate adequate air for ventilation of hydrogenerator comprising - a rim punching segment (1) on which a plurality of bushes (20) having specific height are welded to create axial gap for generating air; - a baffle (3) is welded around the outer bushes to make a canal for air and to reduce the churning and windage losses; - a regulating cover (7) provided for opening on top (4) and bottom plate (5) of spider (6) to optimise air flow; - fixing up the cover (7) on to top (4) and bottom (5) plate by the screw (8),