Patent ID: 7223138

Claim:
A water jet propeller, comprising: a cylindrically shaped impeller housing disposed in a rear portion of a hull; an impeller disposed inside the impeller housing; a cylindrically shaped stator disposed at a rear-end portion of the impeller housing; a cylindrical liner inserted into an inner periphery of the impeller housing; and a nozzle disposed at a rear-end portion of the stator, the nozzle having a diameter that gradually diminishes rearwardly; the water jet propeller for propelling the hull by expelling a water jet from a rear-end portion of the nozzle by rotating the impeller; wherein the impeller is rotatably mounted to the stator, being disposed inside the impeller housing; wherein the impeller housing, the stator, and the nozzle are connected integrally with each other using a first bolt; and wherein the impeller housing and the stator are connected integrally with each other using a second bolt.