Dual jet boat pump

Details Dual jet boat pump Dual jet boat pump

1976-03-11

1977-06-28

Blix, Trygve M.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural distributing means immediately upstream of runner

415204, 60222, B63H 1102

Patent

active

040318443

ABSTRACT:
A double suction, double volute pump for propelling a boat having each volute exhaust through a separate jet nozzle. The pump housing defines two intake passageways leading upward to either side of a double suction impeller. The housing further provides double volutes which receive water from each side of the double suction impeller and deliver it to dual nozzles thereby creating twin jets which may be employed to propel and control the boat. The double volutes each extend substantially full circle about the housing and terminate in elbows which lead to the nozzles. The nozzles are placed horizontally equidistant from the centerline of the impeller shaft and are controlled by steering linkages to operate in unison. Reversing control gates may be operated either together for reversing or independently for slow speed steering.

REFERENCES:
patent: 2024274 (1935-12-01), Campini
patent: 2625110 (1953-01-01), Hentjens et al.
patent: 3082732 (1963-03-01), Stallman
patent: 3128740 (1964-04-01), Burgin
patent: 3422788 (1969-01-01), Horan, Jr.
patent: 3805731 (1974-04-01), Furst et al.
"Waterjet Propulsion Systems" Study Contract No. bs88605, Project Serial No. ss-600-000, Task 1722. (Lockheed).

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