Hull attachment for placement of drag reducing bubbles
OwnerRobert G. Latorreinventor
Life of this patent
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Abstract
A series of foils with air or gas injection at their tips are arranged in rows that project outward from the forward submerged section of a ship, boat or submerged hull section. The foils are arranged in single or multiple rows with tip height set to provide suitable bubble injection into the boundary layer surrounding the moving hull surface. The foils can be arranged in single or multiple strips along the hull depending on the amount of air/gas injection.
Claims6
A device to reduce the skin friction drag on floating and submerged marine vehicles operating at different speeds comprising a series of foils attached to the vehicle's hull surface extending outward from the hull into the water, the foil being attached such that the foil creates a trailing tip vortex with drag reducing microbubble or polymer entrainment when the vehicle is underway.
A method for reducing the skin friction drag on floating and submerged marine vehicles operating at different speeds, comprising the step of attaching a series of foils to a marine vehicle hull surface extending downward from the hull into the water, the foil being attached such that the foil creates a trailing tip vortex when the marine vehicle is underway.
Dependencies are inferred from the claim text.