Marine propulsion – Jet drive – Direction control for fluid jet
Patent
1996-04-08
1998-02-24
Basinger, Sherman
Marine propulsion
Jet drive
Direction control for fluid jet
440 42, 440 43, 440 47, B63H 11103, B63H 1111, B63H 11113, B63H 11117
Patent
active
057206368
ABSTRACT:
The instant invention describes an advanced marine propulsor that has a rotor that is, at least in its majority, enclosed by structure where the rotor, in its preferred embodiment, receives water over at least a majority of its lower portions and gas over at least part of its upper portions. It is possible to delete the gas flow by use of a valve or structure so that an approximate doubling of water flow rate occurs which is valuable as a thrust enhancer for low and mid-range marine vehicle speed operation. It is also possible to operate the rotor with water directed mainly to its lower portions but with little or no gas directed to its upper portions thus forming a partial vacuum over the upper portions of the rotor vanes. When used, a water directing valve that directs water to the rotor vanes preferably has a curvilinear water contacting surface so that water will adhere to and follow that surface. The inherent structural strength of the rotor can be increased by a rotor ring that can be inset into a recess in the adjacent housing to minimize drag of the rotor ring. A simple steering and reversing system for marine propulsors is also proposed. It includes a steering rudder that is in mechanical communication with reversing guide vanes or nozzles such that movement of the steering rudder causes a common movement of the reversing guide vanes or nozzles. A reversing gate is used to block discharge flow when in reverse and thereby redirect the discharge flow to the reversing guide vanes or nozzles. A water deflecting flap is optionally provided to deflect water from hitting the reversing guide vanes or nozzles when operating in a high speed ahead mode and whereby this water deflecting flap is rotated out of the way by force of the discharging water when in reverse.
REFERENCES:
patent: 3785327 (1974-01-01), Smith
patent: 3788265 (1974-01-01), Moore
patent: 3805731 (1974-04-01), Furst et al.
patent: 3943876 (1976-03-01), Kiekhaefer
patent: 3985094 (1976-10-01), Stricker
patent: 4371350 (1983-02-01), Kruppa et al.
patent: 4917637 (1990-04-01), Soga et al.
patent: 4929200 (1990-05-01), Guezou et al.
patent: 4941423 (1990-07-01), Van Tassel
patent: 5350325 (1994-09-01), Nanami
patent: 5505639 (1996-04-01), Burg
Basinger Sherman
Van Der Wall Robert J.
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