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AssigneeHonda Motor Co., Ltd.
InventorsShuichi Honda, Mineyasu Oana, Hidehiko Nakata, Naoki Kuno
Estimating the term…
The effective efficiency of a centrifugal compressor can be improved by achieving a uniform distribution of fluid velocity across the outlet end of a fluid passage of an axial diffuser for the centrifugal compressor and a high static pressure recovery ratio Cp in the axial diffuser passage. The cross section of each axial diffuser passage is configured such that a relatively high velocity fluid flow in an upstream part of the diffuser passage is directed toward a negative pressure side of a cross section thereof. It can be accomplished by directing a minor axis of a cross section of the diffuser passage substantially perpendicularly to a direction directed from a center of the cross section of the diffuser passage to the central axial line of an impeller or directing the minor axis toward the central axial line of the impeller.
An axial diffuser for a centrifugal compressor, comprising a plurality of axial diffuser passages arranged around an impeller of the centrifugal compressor at a prescribed circumferential interval so that a radial fluid flow from the impeller is directed into an axial fluid flow substantially in parallel with a central axial line of the impeller, and kinetic energy of the fluid flow entering each diffuser passage is converted into pressure energy, wherein:
Dependencies are inferred from the claim text.