Axial fan assembly including an intermediate shroud
AssigneeRegal Beloit America, Inc.
InventorsJacob Michael Hansel, Jeevan Gnana Robinson, Steven A. Trimble
Life of this patent
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Abstract
An axial fan assembly includes a hub and one or more blades extending radially from a center point of the hub about which the axial fan rotates relative to an axis of rotation. Each of the one or more blades extending a blade length from the hub to a free edge of the one or more blades. The axial fan assembly also includes an intermediate shroud arranged radially outwards of the hub and radially inwards of the free edge of the one or more blades. The intermediate shroud including a first shroud end, and a second shroud end laterally opposite the first shroud end. Wherein the intermediate shroud has a circumferential sinusoidal shape.
Claims20
An axial fan assembly comprising:
- an axial fan comprising a hub and one or more blades extending radially from a center point of the hub about which the axial fan rotates relative to an axis of rotation, each of the one or more blades extending a blade length from the hub to a free edge of the one or more blades;
- and
- an intermediate shroud arranged radially outwards of the hub and radially inwards of the free edge of the one or more blades, the intermediate shroud including:
- a first shroud end, and
- a second shroud end laterally opposite the first shroud end,
- wherein the intermediate shroud has a circumferential sinusoidal shape.
A method of fabricating an axial fan assembly, the method comprising:
- providing an axial fan comprising a hub and one or more blades extending radially from a center point of the hub about which the axial fan rotates relative to an axis of rotation, each of the one or more blades extending a blade length from the hub to a free edge of the one or more blades;
- and
- arranging an intermediate shroud radially outwards of the hub and radially inwards of the free edge of the one or more blades, the intermediate shroud including:
- a first shroud end, and
- a second shroud end laterally opposite the first shroud end,
- wherein the intermediate shroud has a circumferential sinusoidal shape.
Dependencies are inferred from the claim text.