Marine Propulsion


A submerged waterjet propulsion system has been designed that combines the hydrostatic pressure producing characteristic of the Multiple Segment Lobe Pump with a submerged, variable area discharge that optimizes the propulsion thrust at any vessel speed. In doing so, there is a 30% to 40% fuel saving, on any size vessel, over a speed range of five to forty miles per hour based on a theoretical analysis** comparing the OCOR propulsion system with the actual propulsion data, i.e. vessel drag and propeller thrust characteristics, from an actual production watercraft from major pleasure boat manufacturer.
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** The analysis is available to qualified potential manufacturers.


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Variable speed multi-segment lobe pump
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No reverse flow buckets - simply reverse rotor rotation to reverse thrust
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Positive displacement pump has constant efficiency at any rotational speed
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Hydraulically actuated discharge pintle (purple body) optimizes jet discharge velocity based on pump flow
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Inlet creates suction so that body drag is minimized
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Eliminates propeller injury to human as well as marine life
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Calculated fuel saving between 30% to 40% over full speed range