초록 ▼

The instant invention is directed toward a marine craft having a semi-enclosed surfacing type propeller in a tunnel that draws air through the specific areas located and shaped to enhance performance and compensate for prime mover torque and horsepower characteristics. The invention consists of thes

The instant invention is directed toward a marine craft having a semi-enclosed surfacing type propeller in a tunnel that draws air through the specific areas located and shaped to enhance performance and compensate for prime mover torque and horsepower characteristics. The invention consists of these air induction features with description of their relationship to craft performance and operating characteristics. This invention also relates certain structures and configuration of these elements, as to enhanced control of said marine craft. The control of these elements having no moving parts or operator interface. Its sequencing is established by the hull movement and the water around it.

대표청구항 ▼

[ What is claimed is:] [7.] In a marine vessel having a particular hull configuration including a transom and at least one engine driven surface piercing propeller positioned within a propeller tunnel formed integral with the hull of the vessel, an improvement comprising:an air induction system posi

[ What is claimed is:] [7.] In a marine vessel having a particular hull configuration including a transom and at least one engine driven surface piercing propeller positioned within a propeller tunnel formed integral with the hull of the vessel, an improvement comprising:an air induction system positioned contiguously within said propeller tunnel including a first flat uppermost surface, a second surface formed in angular relationship to said first surface characterized as a first angle which inclines the surface toward the rear of the vessel and a second angle skewed from a plane parallel to the vessel's transom and a third angular wall surface in juxtaposition to the first surface and angularly disposed thereto, said third wall including a controlled air passageway having a shaped opening to control passage of air as a function of water flow;wherein optimum engine torque and rpm characteristics are maintained throughout the engine's performance curve.