Propeller blade structures and methods particularly adapted for

Details Propeller blade structures and methods particularly adapted for Propeller blade structures and methods particularly adapted for

1974-04-12

1976-08-03

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Tined or irregular periphery

416223B, 415215, B63H 118, B63H 126

Patent

active

039726460

ABSTRACT:
This disclosure is concerned with reducing blade-generated cavitation and accompanying noise in systems such as marine ducted reversible thrusters and the like, by novel techniques including a skew-forward blade configuration at the outer radii and particular blade thickness/chord length ratios associated therewith.

REFERENCES:
patent: 1088883 (1914-03-01), Donath
patent: 1882164 (1932-10-01), Ross
patent: 2582559 (1952-01-01), Pearson

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