Accession Number : ADD018392

Title :   Hull Supported Steering and Reversing Steering and Reversing Gear for Large Waterjets.

Descriptive Note : Patent, Filed 14 Sep 95, patented 7 Jan 97,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Dai, Charles M

Report Date : 07 Jan 1997

Pagination or Media Count : 12

Abstract : A waterjet propulsion system for a vessel permits stationary mounting of the pump within the vessel hull, and further allows minimizing the size and weight of the pump casing by providing a pivotably moveable, hull mounted and supported steering and reversing sleeve mechanism positioned to receive the waterjet flow from a waterjet nozzle and to redirect at least a portion of that flow for steering and production of reverse thrust. The sleeve structure also permits all machinery for achieving control of steering and reverse thrust to be placed in protected locations such as being faired into the sleeve or within the vessel hull. Protection of linkages and reduction of the weight thereof is also provided.

Descriptors :   *PATENTS, *WATERJET PROPULSION, POSITION(LOCATION), STEERING, FLOW, PUMPS, LINKAGES, WEIGHT REDUCTION, THRUST CONTROL, SHIP HULLS, SLEEVES, THRUST REVERSAL

Subject Categories : Marine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE