Centrifugal wheel

Details Centrifugal wheel Centrifugal wheel

2005-12-20

2005-12-20

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Radially extending web or end plate

C416S22300B, C416S18600A

Reexamination Certificate

active

06976828

ABSTRACT:
A centrifugal compressor wheel including a metal hub (2) for connecting to a drive shaft (3), an inlet plate (4) and an outlet plate (5) fixed to the metal hub (2), and a plurality of blades (7), each blade having a beginning and a peripheral portion (7b), fixed between the inner plate (4) and the outer plate (5). The wheel further includes an annular metal insert (8) integrated in the central portion of the wheel at a periphery of the hub (2), the annular metal insert (8) having metal elements (7A) forming the beginnings of the blades of the wheel. The inlet plate (4), the outlet plate (5), and the peripheral portions (7B) of the blades are made of a composite material, thereby constituting a composite portion of the wheel.

REFERENCES:
patent: 1427391 (1922-08-01), Otto
patent: 2401206 (1946-05-01), Rijswijk
patent: 4125344 (1978-11-01), Tiefenbacher
patent: 4647271 (1987-03-01), Nagai et al.
patent: 4958987 (1990-09-01), Billingsley
patent: 6592329 (2003-07-01), Hirose et al.
patent: 416921 (1966-07-01), None
patent: 0942174 (1999-09-01), None
patent: 2504209 (1982-10-01), None

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