Patent ID: 8206191
Filing Date: 2012-06-26
Classification: B63H

Abstract:
1. A water jet propulsion watercraft comprising: a hull; and a pair of jet propulsion devices attached to the hull and arranged to the right and left of a hull centerline; wherein each of the pair of jet propulsion devices includes: the bucket includes: the entrance of the auxiliary nozzle is spaced away from the forward drive jet port in the hull right/left direction and does not oppose the forward drive jet port in a state where the bucket is arranged at the reverse drive position and the deflector is arranged at the straight drive position; a water flow is not jetted from either of a pair of the auxiliary nozzles respectively provided in a pair of the buckets respectively provided in the pair of right and left jet propulsion devices when the pair of the buckets are at the reverse drive positions and a pair of the deflectors respectively provided in the pair of right and left propulsion devices are at the straight drive positions; and a water flow is jetted from one of the pair of auxiliary nozzles respectively provided in the pair of the buckets and a water flow is not jetted from the other of the pair of auxiliary nozzles when the pair of the buckets are at the reverse drive position and the pair of the deflectors are rotated to either the right or the left from the straight drive positions.