Fan shroud
AssigneeDeere & Company
InventorsZakir Faruquee, Erik Holzhuter, Mike P. Faust, Luke Longhenry, Joel Khristy
Life of this patent
Estimating the term…
Abstract
A shroud for a cooling fan that is being positionable within the chassis of an off-highway machine. The shroud includes an inlet, an outlet, an elliptical lip section positioned adjacent to the outlet, and a plurality of apertures extending through the elliptical lip section. Each aperture of the plurality of apertures is positioned greater than 10 degrees away from an adjacent aperture of the plurality of apertures.
Claims11
A shroud for a cooling fan, the fan positionable within the chassis of an off-highway machine, the shroud comprising:
- an inlet having a first side, a second side, a third side, and a fourth side;
- an outlet;
- and
- an elliptical lip section positioned at the outlet, the elliptical lip section including a first planar face and a second planar face facing away from the first planar face, the second planar face having a centroid,
- wherein a plane coincident with the second planar face includes a first axis parallel to the second and fourth sides of the inlet and a second axis perpendicular to the first axis, both the first axis and the second axis passing through the centroid, wherein the first and second axes together divide the elliptical lip section into four quadrants,
- wherein a plurality of apertures extend through the elliptical lip section, at least one aperture of the plurality of apertures positioned in each quadrant of the four quadrants of the elliptical lip section, and
- wherein the plurality of apertures is arranged in aperture clusters.
A shroud for a cooling fan, the fan being positionable within the chassis of an off-highway machine, the shroud comprising:
- an inlet;
- an outlet;
- and
- an elliptical lip section positioned at the outlet, the elliptical lip section including a first planar face and a second planar face facing away from the first planar face, the second planar face having a centroid,
- wherein a plane coincident with the second planar face includes a first axis parallel to the second and fourth sides of the inlet and a second axis perpendicular to the first axis, both the first axis and the second axis passing through the centroid,
- wherein a plurality of apertures extending through the elliptical lip section are configured to at least partially relieve a pressure gradient generated by a portion of the elliptical lip section, and
- wherein each aperture in the plurality of apertures is arranged in aperture clusters, at least two aperture clusters being spaced at least 30 degrees away from each other.
A shroud for a cooling fan, the fan positionable within the chassis of an off-highway machine, the shroud comprising:
- an inlet having a first side, a second side, a third side, and a fourth side;
- an outlet;
- and
- an elliptical lip section positioned at the outlet, the elliptical lip section including a first planar face and a second planar face facing away from the first planar face, the second planar face having a centroid,
- wherein a plane coincident with the second planar face includes a first axis parallel to the second and fourth sides of the inlet and a second axis perpendicular to the first axis, both the first axis and the second axis passing through the centroid, wherein the first and second axes together divide the elliptical lip section into four quadrants,
- wherein a plurality of apertures extend through the elliptical lip section, at least one aperture of the plurality of apertures positioned in each quadrant of the four quadrants of the elliptical lip section, and
- wherein the apertures are circular.
Dependencies are inferred from the claim text.