Profiled annular hoop for a fan helix and its application to veh

Details Profiled annular hoop for a fan helix and its application to veh Profiled annular hoop for a fan helix and its application to veh

1992-11-06

1993-10-05

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

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

Axially extending shroud ring or casing

415228, 415914, F04D 2908

Patent

active

052499278

ABSTRACT:
The profiled annular hoop for a fan helix blade tip exhibits a curved inlet collar whose convexity is directed towards the axis (100), and is characterized in that this collar (11) has a given axial length (l) and a meridian section (110) shaped approximately as a quarter ellipse whose eccentricity is of the order of 1.5 and whose major half-axis (a) lies between approximately one third and one half of this given axial length (l).
Application to cooling motorized fans of vehicle radiators.

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patent: 4781298 (1989-10-01), Vera
patent: 4930984 (1990-06-01), Kesel et al.
patent: 5183382 (1993-02-01), Carroll

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