Axial impeller with enhance flow

Details Axial impeller with enhance flow Axial impeller with enhance flow

2005-07-18

2008-09-02

Look, Edward (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

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

Radially extending web or end plate

C416S16900R, C416S234000, C416S238000

Reexamination Certificate

active

07419359

ABSTRACT:
An axial impeller (1), with enhanced flow, rotating in a plane (XY) about an axis (2) comprises a central hub (3), whose diameter is smaller than the diameter of the drive motor (3a), a plurality of blades (4) having a base (5) and a tip (6), the blades (4) being delimited by a convex leading edge (7) and by a convex trailing edge (8), whose projections onto the plane of rotation of the impeller are each defined by circular arc segments; the blades (4) are composed of sections having aerodynamic profiles (18) each having a decreasing length and an increasingly curved shape starting at the edge towards the hub; towards the hub each blade (4) has a box-shaped portion (20) that forms a wide scat (21) providing housing for an drive motor (3a) having a diameter that corresponds substantially to the seat (21).

REFERENCES:
patent: 3127093 (1964-03-01), Sudrow
patent: 3334807 (1967-08-01), McMahan
patent: 6659724 (2003-12-01), Takeuchi et al.
patent: 0 557 239 (1993-08-01), None
patent: 0 945 625 (1999-09-01), None
patent: 1 016 788 (2000-07-01), None

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