Patent ID: 6796858
Filing Date: 2004-09-28
Classification: B63H

Abstract:
A jet pump for a watercraft comprising:a generally cylindrical housing having a forward portion and a rearward portion thereof; an impeller having a plurality of impeller blades mounted thereon, said impeller being disposed within said forward portion of said housing and being configured to be connected to a rotatable shaft so as to be rotatable within said housing; a stator fixedly mounted within said housing adjacent to and rearward of said impeller, said stator having a plurality of circumferentially spaced first vane structures extending generally radially outwardly therefrom, extending axially along said stator, and tapered in width axially toward said impeller; a pump cover being fixedly mounted to a rearward side of said stator and having a plurality of circumferentially spaced second vane structures extending generally radially outwardly therefrom, extending axially along said pump cover, and tapered in width opposite said first vane structures, wherein each of said plurality of first vane structures abuts a respective one of said plurality of second vane structures, said pluralities of abutting first and second vane structures defining a plurality of stator vanes extending axially along said stator and said pump cover and being positioned rearward of said impeller.