Patent ID: 8926466
Filing Date: 2015-01-06
Classification: B63H,Y10T

Abstract:
1. A vessel propulsion apparatus comprising: a prime mover arranged to generate power to rotate a propeller about a propeller axis; a propeller shaft extending along the propeller axis, the propeller shaft arranged to transmit a rotation of the prime mover toward the propeller; a planetary gear train including a sun gear, a ring gear, a planetary gear, and a carrier and disposed on the propeller axis, the planetary gear train being arranged to reduce the rotation transmitted to the propeller shaft; a case in which the propeller shaft and the planetary gear train are housed; a housing housed in the case and surrounding the propeller shaft about the propeller axis inside the case and supporting the planetary gear train in state in which one of the sun gear, the ring gear, the planetary gear, and the carrier is not rotatable with respect to the housing; and a fixing member surrounding the propeller shaft about the propeller axis and fixed to both the case and the housing to prevent circumferential displacement of the housing with respect to the case.