Metal working – Method of mechanical manufacture – Impeller making
Patent
1995-06-06
1997-02-11
Cuda, Irene
Metal working
Method of mechanical manufacture
Impeller making
29889, B23P 1500
Patent
active
056008864
ABSTRACT:
A vane wheel driven by a shaft for transferring a gas, comprises, vortex flow chambers opening in a direction substantially parallel to the shaft to receive the gas, to urge the gas in a substantially circumferential direction of the vane wheel, and to generate and accelerate a vortex flow of the gas. A vane member includes a hub through which the vane member is connected to the shaft, with the vane member including a plurality of vanes each extending integrally from the hub in a substantially radial direction of the vane wheel. Each of the vanes includes a front surface for urging the gas in the substantially circumferential direction of the vane wheel. A vortex flow chamber wall extends integrally from both the hub and each of the vanes, and a cover contacts with the vortex flow chamber wall to form the vortex flow chambers together with the vortex flow chamber wall and the vanes.
REFERENCES:
patent: 1973669 (1934-09-01), Spoor
patent: 3899266 (1975-08-01), Masai et al.
patent: 5265996 (1993-11-01), Westhoff et al.
Patent Abstracts of Japan, vol. 14, No. 517 (M-1047) 13 Nov. 1990; and JP-A-02 215 498 (Hitachi) Abstract.
Asabuki Hiroshi
Fujio Masayuki
Ishida Fumiaki
Watanabe Takashi
Yamazaki Susumu
Cuda Irene
Hitachi , Ltd.
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