System and method of a fan
OwnerIbrahim Almishariinventor
Life of this patent
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Abstract
A fan apparatus is described that comprises a rotational hub that defines a central axis, a first fan blade coupled to the rotational hub and extending radially outward from the central axis, wherein the first fan blade has a first pitch angle; a second fan blade coupled to the rotational hub and extending radially outward from the first central axis, wherein the second fan blade has a second pitch angle opposite the first pitch angle; and a housing that defines cylindrical interior volume with a central axis coaxial with the central axis of the rotational hub, wherein the first and second fan blades reside within the cylindrical interior volume.
Claims18
A method of operating a fan comprising:
- compressing air into a chamber, the chamber defined in part by a housing that defines a circular inside diameter and a back wall, the compressing by a first fan blade turning about a central axis, and the first fan blade having a constant first pitch angle for moving air into the chamber;
- and
- extracting air from the chamber by a second fan blade, the second fan blade turning about the central axis, and the second fan blade having a constant second pitch angle for extracting air from the chamber, wherein the constant second pitch angle is opposite the constant first pitch angle.
A fan apparatus comprising:
- a rotational hub that defines a central axis;
- a first fan blade coupled to the rotational hub and extending radially outward from the central axis, the first fan blade having a constant first pitch angle;
- a second fan blade coupled to the rotational hub and extending radially outward from the central axis, the second fan blade having a constant second pitch angle opposite the constant first pitch angle;
- and
- a housing that defines cylindrical interior volume with a central axis coaxial with the central axis of the rotational hub, wherein the first and second fan blades reside within the cylindrical interior volume.
Dependencies are inferred from the claim text.