STRUCTURE OF JET UNIT FRO JET PUSHER BOAT

摘要

PURPOSE: To improve the extent of propulsive efficiency by making a reverse bucket operable so lightly, and reducing a leak of water from an interval between this reverse bucket and a deflector. ;CONSTITUTION: In a jet unit of a jet pusher boat, a supporting shaft 70 is installed in a double side part of a deflector 30, supporting a reverse bucket 40 rotatably by this supporting shaft 70, and thereby it is constituted to be convertibly into a state of covering an outlet part of the deflector 30 and feeding water out of the deflector frontward and another state of being retreated from the outlet part. The reverse bucket 40 consists of two cover plates 41, 42 covering the outlet part rear side and the double side part of the deflector 30 and an arm 43, whose one end is connected to the double side part of this cover plate and the other end is rotatably supported by the supporting shaft, and the cover plate 41 is formed into a circular surface making the supporting shaft 70 the center of curvature.;COPYRIGHT: (C)1993,JPO&Japio