DIFFUSER FOR A VACUUM CLEANER MOTOR-FAN ASSEMBLY
First Claim
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1. A motor-fan assembly for a vacuum cleaner, the motor-fan assembly comprising:
- a fan;
a motor including an output shaft coupled to the fan, the motor operable to rotate the fan; and
a diffuser including,a disc having a first surface facing toward the fan, a second surface facing away from the first surface, an aperture extending through the disc between the first surface and the second surface, the output shaft extending through the aperture, the disc further including an outer periphery that extends radially around the aperture,a wall that surrounds the outer periphery of the disc having an inner surface that faces toward the output shaft and an outer surface facing away from the inner surface, anda plurality of vanes coupled to the outer surface of the wall and extending radially outward from the outer surface of the wall.
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Abstract
A motor-fan assembly for a vacuum cleaner configured to remove debris from a surface. The motor-fan assembly includes a fan, a motor including an output shaft coupled to the fan, the motor operable to rotate the fan, and a diffuser. The diffuser includes a disc, a wall that surrounds the disc, and a plurality of vanes that are coupled to an outer surface of the wall and extend radially outward from the outer surface of the wall.
11 Citations
20 Claims
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1. A motor-fan assembly for a vacuum cleaner, the motor-fan assembly comprising:
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a fan; a motor including an output shaft coupled to the fan, the motor operable to rotate the fan; and a diffuser including, a disc having a first surface facing toward the fan, a second surface facing away from the first surface, an aperture extending through the disc between the first surface and the second surface, the output shaft extending through the aperture, the disc further including an outer periphery that extends radially around the aperture, a wall that surrounds the outer periphery of the disc having an inner surface that faces toward the output shaft and an outer surface facing away from the inner surface, and a plurality of vanes coupled to the outer surface of the wall and extending radially outward from the outer surface of the wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A vacuum cleaner, comprising:
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a dirt collection chamber; a base including a nozzle defining an inlet of the vacuum cleaner through which debris travels toward the dirt collection chamber; a handle coupled to the base and configured to move the base along a surface to be cleaned; and a motor-fan assembly operable to generate an airflow through the inlet and the dirt collection chamber, the motor-fan assembly including, a fan, a motor including an output shaft coupled to the fan, the motor operable to rotate the fan to generate the airflow, and a diffuser including, a disc having a first surface facing toward the fan, a second surface facing away from the first surface, an aperture extending through the disc between the first surface and the second surface, the output shaft extending through the aperture, the disc further including an outer periphery that extends radially around the aperture, a wall that surrounds the outer periphery of the disc and the wall having an inner surface that faces toward the output shaft and an outer surface facing away from the inner surface, and a plurality of vanes coupled to the outer surface of the wall and extending radially outward from the outer surface of the wall. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification