Axial flow inducers for hydraulic devices
AssigneeNikkiso Co., Ltd.
InventorsToshiaki Tsutsui, Akira Oyamada, Tomomitsu Hamaguchi, Akihiko Agata
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Abstract
An axial flow inducer for hydraulic devices is disclosed. The inducer is coaxially arranged in front of a fluid suction inlet side of a main impeller of an hydraulic device, for example, a pump and constituted by at least two axial flow blade parts which are constructed and arranged so as to prevent an occurrence of noise over all flow amount region of the impeller.
Claims7
An axial flow inducer for hydraulic devices comprising a pump casing, a rotary shaft rotatably journaled by said pump casing, a main impeller secured to said rotary shaft, and an inducer having axial flow blades coaxially arranged in front of a fluid suction inlet side of said main impeller a sleeve extending forwardly of the front of said inducer and having one end secured to the outer peripheral edge of said inducer and the opposite end bent inwardly and spaced from the front of said inducer so as to form a barrier, said axial flow blades being constructed and arranged so as to prevent an occurrence of noise over the region of said impeller.
Dependencies are inferred from the claim text.