초록 ▼

This invention relates to a marine jet drive having improved operation, especially in regard to having efficient adaptation to propulsion engine and hull design; having a drive shaft with flexible coupling at each end, internal to the jet drive; having through-the-nozzle engine exhaust; having simpl

This invention relates to a marine jet drive having improved operation, especially in regard to having efficient adaptation to propulsion engine and hull design; having a drive shaft with flexible coupling at each end, internal to the jet drive; having through-the-nozzle engine exhaust; having simplified, combined means of steering and reversing; having controllable nozzle aperture and trim control; having combination reverse flow deflector and trim plane; having means to disengage the engine from the jet to obtain true neutral; having protection from and removal of debris in the water intake duct; generally having fewer overhauls, easier serviceability and lighter weight.

대표청구항 ▼

[ I claim:] [1.] In an improved marine jet drive for propelling a vessel with a forward and a rearward end, a driving means including an engine, an impeller, a drive shaft coupling the driving means to the impeller, an impeller housing around the impeller, a diffusor housing attached to the impeller

[ I claim:] [1.] In an improved marine jet drive for propelling a vessel with a forward and a rearward end, a driving means including an engine, an impeller, a drive shaft coupling the driving means to the impeller, an impeller housing around the impeller, a diffusor housing attached to the impeller housing, a nozzle housing attached to said diffusor housing and an intake duct disposed in front of said impeller housing, the improvement comprising:(a) an inner housing, the inner housing disposed inside said diffusor housing and rotatively supporting the impeller;(b) a rear flexible coupling disposed within the inner housing, the rear flexible coupling flexibly connecting the impeller to the drive shaft; and(c) a forward flexible coupling, the forward flexible coupling flexibly connecting the driving means to the drive shaft.