High specific speed fan propeller having auxiliary blades

Details High specific speed fan propeller having auxiliary blades High specific speed fan propeller having auxiliary blades

1993-12-30

1996-01-09

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Unsymmetrical impeller or dissimilar working members

416200R, 416201A, F04D 2932

Patent

active

054824362

ABSTRACT:
A high specific speed fan propeller is provided which has a hub, at least two main blades and at least two auxiliary blades. The hub has an attachment device for connecting the propeller to a turning part. The at least two main blades are attached to the hub and extend radially a first distance therefrom. The at least two auxiliary blades are also attached to the hub and extend radially a second distance therefrom. The first distance is greater than the second distance.

REFERENCES:
patent: 1485788 (1924-03-01), Lamwers
patent: 1831729 (1931-11-01), Adamcikas et al.
patent: 1946571 (1934-02-01), Briner
patent: 2238749 (1941-04-01), Peltier
patent: 2353681 (1944-07-01), Martin et al.
patent: 5328335 (1994-07-01), Monroe

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