Ribbon drive propulsion system and method
OwnerJonathan B. Rosefskyinventor
Life of this patent
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Abstract
A ribbon drive propulsion apparatus and method for water-borne vessels such as surface craft and submersibles is disclosed. The vessel is equipped with an extended tube having an intake at a first end and an outlet at a second end. A ribbon formed of helical coils is mounted in the tube for rotation and the frequency of the coils decreases from the first end to the second end of the tube. Water is collected at the first end, an axial component of momentum of the water is increased via the rotating ribbon, and the water is ejected from the second end to provide propulsion to the vessel.
Claims43
A propulsion system for water-borne vessels comprising:
- a propulsion tube having an intake at a first end and an outlet at a second end;
- at least one rotatable ribbon formed of coils extending in a helical manner from the first end to the second end of the tube, wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the tube;
- means for providing additional water to low pressure regions inside said propulsion tube;
- drive means for rotating the ribbon.
A propulsion system for water-borne vessels comprising:
- a propulsion tube having an intake at a first end and an outlet at a second end;
- at least one rotatable ribbon formed of coils extending in a helical manner from the first end to the second end of the tube, wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the tube;
- and
- drive means for rotating the ribbon, wherein said ribbon is adjacent to a retractable iris fan formed of a plurality of blades, each blade being radially adjustable.
A propulsion system for water-borne vessels comprising:
- a propulsion tube having an intake at a first end and an outlet at a second end;
- at least one rotatable ribbon formed of coils extending in a helical manner from the first end to the second end of the tube, wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the tube;
- and
- drive means for rotating the ribbon, wherein said ribbon is formed of a plurality of adjustable, contiguous vane segments.
A propulsion method for water-borne vessels comprising:
- providing the water-borne vessel with a propulsion tube having an intake at a first end and an outlet at a second end;
- rotating at least one ribbon formed of coils extending in a helical manner from the first end to the second end of the tube, wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the tube;
- collecting water at the first end;
- increasing an axial component of momentum of the water with the rotating ribbon;
- adding water to low pressure regions within said tube;
- and
- ejecting water from the second end to provide propulsion to the vessel.
A propulsion method for water-borne vessels comprising:
- providing the water-borne vessel with a propulsion tube having an intake at a first end and an outlet at a second end;
- rotating at least one ribbon formed of coils extending in a helical manner from the first end to the second end of the tube, wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the tube;
- collecting water at the first end;
- increasing an axial component of momentum of the water with the rotating ribbon;
- and
- ejecting water from the second end to provide propulsion to the vessel, further comprising forming said ribbon from a plurality of adjustable, continguous vane segments.
Dependencies are inferred from the claim text.