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A water jet propulsion system has a flow-through housing with an impeller section, a convergent section having a discharge aperture, and a cup-shaped extension. An impeller is rotatable within the impeller section of the housing. A steering nozzle is pivotably mounted inside the cup-shaped extension

A water jet propulsion system has a flow-through housing with an impeller section, a convergent section having a discharge aperture, and a cup-shaped extension. An impeller is rotatable within the impeller section of the housing. A steering nozzle is pivotably mounted inside the cup-shaped extension for pivoting about an axis. The steering nozzle has an inlet opening with a width greater than its height, a laterally convergent section extending rearward from the inlet opening, and an outlet opening. Preferably the outlet opening of the steering nozzle is generally circular. The steering nozzle has a second section having a passage which is generally cylindrical or slightly convergent. The second section ends at the outlet opening. A support post extends radially outward from the steering nozzle, and a steering arm extends laterally and forward from the support post. A portion of the steering arm extends outside of and overhangs a portion of the cup-shaped extension. The steering nozzle, support post and steering arm are formed as one cast piece.

대표청구항 ▼

A water jet propulsion system has a flow-through housing with an impeller section, a convergent section having a discharge aperture, and a cup-shaped extension. An impeller is rotatable within the impeller section of the housing. A steering nozzle is pivotably mounted inside the cup-shaped extension

A water jet propulsion system has a flow-through housing with an impeller section, a convergent section having a discharge aperture, and a cup-shaped extension. An impeller is rotatable within the impeller section of the housing. A steering nozzle is pivotably mounted inside the cup-shaped extension for pivoting about an axis. The steering nozzle has an inlet opening with a width greater than its height, a laterally convergent section extending rearward from the inlet opening, and an outlet opening. Preferably the outlet opening of the steering nozzle is generally circular. The steering nozzle has a second section having a passage which is generally cylindrical or slightly convergent. The second section ends at the outlet opening. A support post extends radially outward from the steering nozzle, and a steering arm extends laterally and forward from the support post. A portion of the steering arm extends outside of and overhangs a portion of the cup-shaped extension. The steering nozzle, support post and steering arm are formed as one cast piece. ses a tail protrusion protruding rearwardly from a bottom end thereof for preventing the modular jack from turning forwards. 3. The modular jack as described in claim 1, wherein the outer section of each resilient post comprises a protrusion protruding forwardly from a bottom end thereof for preventing the modular jack from turning backwards. 4. The modular jack as described in claim 1, wherein each conductive contact has a tail portion for soldering with the cable end, and the tail portion of one conductive contact is bent to apart from the tail portion of the other conductive contact for facilitating the soldering procedure between the tail portions and the cable end.