Boundary layer water pickup device

Details Boundary layer water pickup device Boundary layer water pickup device

1997-08-25

1999-04-06

Swinehart, Ed L.

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

B63H 2110

Patent

active

058909397

ABSTRACT:
A unique through-hull water pickup device for mounting in a watercraft below the water line where the layer of water next to the hull is known as the boundary layer. The device includes a flange having a curved lip provided with grooves that channel water into the watercraft at a suitably low and fairly constant pressure or head and with low drag at varying speeds of the watercraft.

REFERENCES:
patent: 835854 (1906-11-01), Franquist
patent: 1641670 (1927-09-01), French
patent: 3874317 (1975-04-01), Hikita
patent: 3878807 (1975-04-01), Reskusic
patent: 4061571 (1977-12-01), Banner
patent: 4809632 (1989-03-01), Hamel
patent: 5165358 (1992-11-01), Fielder

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