Centrifugal fan impeller with blades inclined relative to...

Details Centrifugal fan impeller with blades inclined relative to... Centrifugal fan impeller with blades inclined relative to...

2007-05-01

2007-05-01

Kershteyn, Igor (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Perimetric blading extending axially between annular members

C416S187000, C416S203000

Reexamination Certificate

active

10522302

ABSTRACT:
The invention relates to a centrifugal fan impeller (1) having an axis of rotation (6) and comprising one or more modules (2). Each module (2) comprises a mounting disc (4), at least one connecting ring (5) and a plurality of blades (3) extending between the mounting disc (4) and the connecting ring (5). The blades (3) are connected to the disc (4) and ring (5) at an angle (α) relative to the axis (6) of the impeller (1). The angle (α) at which the blades (3) are inclined may range from 5 to 30 degrees and the blades (3) may be rectangular or trapezoidal in shape depending on the type of performance required: improved capacity with rectangular blades or improved pressure head and acoustic properties with trapezoidal blades. Top performance is thus combined with acoustic comfort.

REFERENCES:
patent: 1478909 (1923-12-01), Oswald
patent: 2980990 (1961-04-01), Sprouse
patent: 4329118 (1982-05-01), Ranz
patent: 4526506 (1985-07-01), Köger et al.
patent: 5611667 (1997-03-01), Nagamori et al.
patent: 6158954 (2000-12-01), Nabeshima et al.
patent: 6883411 (2005-04-01), Arrasmith et al.
patent: 2002/0021967 (2002-02-01), Kim et al.
patent: 2322734 (1974-11-01), None
patent: 3708130 (1988-09-01), None
patent: 0816687 (1998-01-01), None
patent: 19736657 (1998-05-01), None

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