Volvo Penta Corporation

Volvo Car Corporation

Björn Wessman

Brodén Fredrik

An auxiliary hull unit detachably mounted to a transom on a marine vessel, wherein the hull unit is mounted at least partially below the water line of the vessel and arranged to extend rearwards parallel to the rearward extension of hull sections adjacent to the hull unit. The hull unit comprises a rear hydrofoil system for the marine vessel; the rear hydrofoil system comprising at least one pair of foldable hydrofoils which are pivotable in a lateral direction relative to the hull unit, wherein each hydrofoil is controllable by at least one actuator for displacement of the at least one pair of foldable hydrofoils in the lateral direction of the hull unit between a stowed position and a deployed position. The hull unit can be provided with a propulsion unit.

Hull unit with a hydrofoil system and marine vessel

The invention relates to a hydrofoil system for a marine vessel comprising a hull (), the hydrofoil system comprising at least one pair of foldable hydrofoils () which are pivoted relative to the marine vessel, wherein each hydrofoil () is controllable by at least one actuator () for displacement of the at least one pair of foldable hydrofoils in a lateral direction of the marine vessel between a stowed position and a deployed position. Each foldable hydrofoil () is hinged relative to the hull above the water line on opposite sides of the marine vessel. A first portion () of each hydrofoil extends adjacent the hull () towards the water line of the marine vessel when the hydrofoil is in the stowed position and a second portion () comprises a free second end extending under the hull. The second portion () is submerged and arranged in a lateral recess () behind a stepped hull portion () of the marine vessel when the hydrofoil is in the stowed position.

Growing community of inventors

Torslanda, Sweden

Björn Wessman