Ribbon drive pumping apparatus and method
OwnerJonathan B. Rosefskyinventor
Life of this patent
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Abstract
A ribbon drive pumping apparatus and method for liquids is disclosed. The pump has 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. Liquid is collected at the first end, an axial component of velocity of the liquid is increased via the rotating ribbon, and the liquid is ejected from the second end to provide pumping of the liquid. A central opening helps decrease cavitation.
Claims20
A pumping apparatus for liquids comprising:
- a tube having an inner surface, an intake at a first end, and an outlet at a second end;
- at least one ribbon having a peripheral edge mounted to said inner surface of said tube, said ribbon being located entirely within the tube in a longitudinal direction, and being 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 said tube and ribbon so as to pump liquid from said first end to said second end.
A pumping method for liquids comprising:
- providing a tube having an inner wall, an intake at a first end, and an outlet at a second end;
- rotating said tube and at least one ribbon having a peripheral edge mounted to said inner surface of said tube so as to:
- collect liquid at the first end;
- increase an axial component of velocity of the liquid with the rotating ribbon;
- and
- eject liquid from the second end to pump said liquid,
- wherein said ribbon is located entirely within the tube in a longitudinal direction, and is formed of coils extending in a helical manner from the first end to the second end of the tube, and
- wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the tube.
A pumping apparatus for liquids comprising:
- a tube having a substantially constant diameter intake at a first end and an outlet at a second end;
- an axial shaft inside said tube;
- at least one ribbon having an inner edge mounted to said shaft, said ribbon being 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 said shaft and ribbon so as to pump liquid from said first end to said second end.
A pumping method for liquids comprising:
- providing a tube having a substantially constant diameter intake at a first end, and an outlet at a second end;
- rotating an axial shaft within said tube and at least one ribbon having an inner edge mounted to said shaft so as to:
- collect liquid at the first end;
- increase an axial component of velocity of the liquid with the rotating ribbon;
- and eject liquid from the second end to pump said liquid,
- wherein said ribbon is formed of coils extending in a helical manner from the first end to the second end of the tube, and
- wherein a frequency of coils per unit length of tube decreases from the first end to the second end of the tube.
Dependencies are inferred from the claim text.