Oil system drain for personal watercraft
AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorToshiyuki Hattori
Life of this patent
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Abstract
A drain arrangement is provided for a lubricating system of an engine powering a watercraft. The engine is mounted to a hull of the watercraft, and includes a lubricating system having a lubricant collector positioned at a bottom of the engine and a lubricating system drain also positioned at the bottom of the engine through which lubricant may be drained from the collector. An access opening is provided in a bottom of the hull adjacent the lubricating system drain and a hull access opening cover plate is provided for selectively opening and closing the access opening.
Claims21
A watercraft having a water propulsion device powered by an internal combustion engine, said engine mounted to a hull of said watercraft, said engine having a lubricating system including a lubricant collector positioned at a bottom of said engine and a lubricating system drain positioned at said bottom of said engine through which lubricant may be drained from said collector, said hull having an access opening provided in a bottom thereof vertically below said lubricant drain, and further including a hull access opening cover plate for selectively opening and closing said access opening.
A watercraft propelled by a water propulsion device, said watercraft having a hull having a bottom, water-engaging surface having a centerline therethrough, and an engine mounted to said hull and arranged to drive said water propulsion device, said engine having a lubricating system, said lubricating system including a lubricant collection area below said engine near said bottom of said hull, and a lubricant drain, said drain including an access opening through said bottom of said hull along said centerline, and a drain passage leading from said collection area to a point generally vertically above said access opening.
Dependencies are inferred from the claim text.