Duct systems for water jet propulsion boats

Details Duct systems for water jet propulsion boats Duct systems for water jet propulsion boats

1979-01-19

1981-06-30

Basinger, Sherman D.

Marine propulsion

Jet drive

Having means to increase fluid drive means efficiency

60222, 440 38, B63H 1104

Patent

active

042760356

ABSTRACT:
A water jet propelled boat hull having an axis of forward motion, a bottom and a centerline. A first and a second water duct are provided, each of which has an exit port discharging rearwardly, the exit ports being laterally spaced from the centerline and on opposite sides of the centerline from each other. Inlet ports are located substantially on the centerline at the bottom of the hull. The ducts interconnect respective inlet ports and respective exit ports. A first and a second water jet propulsion device, such as a pump, is disposed respectively in each of the said first and second ducts to move water from the inlet ports and out the exit ports. Because the inlet ports are on the centerline, both ducts will be provided with water, even when the boat is inclined as a consequence of making sharp turns.

REFERENCES:
patent: 807769 (1905-12-01), Palmer
patent: 985187 (1911-02-01), Lindgren
patent: 2696077 (1954-12-01), Goodman
patent: 3044260 (1962-07-01), Hamilton
patent: 3420204 (1969-01-01), Samuel
patent: 3752110 (1973-08-01), Rhoda
patent: 3797447 (1974-03-01), Stubblefield
patent: 3805731 (1974-04-01), Furst et al.

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