Moving fluid in a rotating cylinder
OwnerJoseph V. D'Amico, IIIinventor
Life of this patent
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Abstract
The invention may utilize shaft horsepower for rotating cylinders to move a fluid in an axial direction within the cylinder. The cylinder may comprise a spiral blade on or in its inner surface with a pitch relative to a central axis of the cylinder. The blade's pitch may be variable or uniform with respect to the central axis. In some applications, plural blades may be positioned within the cylinder. The invention is particularly suitable for imparting kinetic energy sufficient to assist with the evacuation of condensate from a paper dryer cylinder with reduced or no blow through steam. The invention also has applications for spinner wheels.
Claims20
A wheel for making mineral wool or metal wool, the wheel comprising:
- a) a hollow, cylindrical shell having an inner surface comprising at least one helical groove, wherein a cavity within the shell is defined at least by the inner surface, and wherein the wheel is rotatable about a central axis;
- b) the cavity in fluid communication with an inlet and outlet;
- c) a cylindrical cage positioned entirely within the cavity and comprising opposed annular end members coupled by a plurality of axially oriented bars, wherein the bars are spaced apart to define a plurality of apertures between adjacent bars;
- and
- d) an outer endcap and an inner endcap operably coupled to the cage and the shell.
A wheel for making mineral wool or metal wool, the wheel comprising:
- a) a hollow, cylindrical shell having an inner surface, a first end, and a second end;
- wherein a cavity within the shell is defined at least by the inner surface, wherein the inner surface comprises at least one helical groove, and wherein the wheel is rotatable about a central axis;
- b) a cage positioned within the cavity and comprising a cylindrical framework comprising a plurality of bars and an aperture between the adjacent bars;
- c) the cavity in fluid communication with an inlet and outlet, wherein the inlet and the outlet are each proximate to the second end of the shell;
- and
- d) a central member attached to the second end of the shell and disposed around the central axis, wherein the central member comprises a plurality of inlet apertures in fluid communication between the inlet and the cavity;
- and
- e) a siphon in fluid communication between the outlet and the cavity, wherein a portion of the siphon is positioned within the central member.
Dependencies are inferred from the claim text.