Blades for propeller fan

Details Blades for propeller fan Blades for propeller fan

1988-07-15

1989-09-26

Garrett, Robert E.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Irregular, flanged or channel forming blade surface

415119, 416223R, B63H 126

Patent

active

048696447

ABSTRACT:
Each blade (2) of a propeller fan projecting radially outwardly from the outer peripheral surface of an annular boss (1) has on at least part of its suction side (3), a coarsened surface (4).

REFERENCES:
patent: 1531967 (1925-03-01), MacMillan
patent: 2238749 (1939-01-01), Peltier
patent: 3481531 (1969-12-01), MacArthur et al.

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