US Patent 11643168 Through-hull passive inboard hydro-generator for a marine vessel

A passive generator system for a marine vessel using an intake manifold having an opening at the bottom of the hull of the vessel. The intake manifold tapers to a point at the rear of the opening and extends upward to an intake funnel that reduces down to a conduit. The conduit has a first portion angled relative to the opening which joins to a second portion at an elbow. The second portion of the conduit extends horizontally to a rear of the vessel, to a conduit exit where water can exit the conduit. An impeller is location in the first portion of the conduit that drives a generator through a shaft between the impeller and the generator, the shaft passing through a top of the first portion of the conduit.