Efficiency ship propeller

Details Efficiency ship propeller Efficiency ship propeller

1966-08-08

1982-03-09

Brown, David H.

Fluid reaction surfaces (i.e., impellers)

With fluid passage in working member communicating with...

Air and watercraft propellers

291568P, 114 67A, 415DIG1, B64C 1120, F01D 514

Patent

active

043186718

ABSTRACT:
A method of raising the propulsion efficiency of a propeller by reducing viscous drag. Basically, a fluid polymer solution is injected along the leading edge of the power face of the propeller blade to form a boundry layer solution adjacent the power face, thereby suppressing turbulence. A propeller suitable for practicing the above method is also disclosed.

REFERENCES:
patent: 3196823 (1965-07-01), Thurston
patent: 3230919 (1966-01-01), Crawford
patent: 3290883 (1966-12-01), Giles et al.

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