Noise reduction system for a blower
AssigneeHusqvarna AB
InventorsChristian Bylund, Pär Martinsson, Tobias Nyberg
Life of this patent
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Abstract
A blower may include a housing, a motor, a fan assembly and an aperture array. The housing may include a handle portion, a top wall and a bottom wall. The fan assembly may be operably coupled to the motor to force air through a blower tube responsive to operation of the motor. The blower tube may define a tube axis. The aperture array may be provided at a portion of the housing to provide a path for air to the fan assembly. The aperture array may be defined by a plurality of vanes disposed at a portion of the housing between the top wall and the bottom wall. The vanes may be angled downward relative to the handle portion.
Claims20
A blower comprising:
- a housing including a handle portion, a top wall and a bottom wall;
- a motor;
- a fan assembly operably coupled to the motor to force air through a blower tube responsive to operation of the motor, the blower tube defining a tube axis;
- an aperture array provided at a portion of the housing to provide a path for air to the fan assembly, the aperture array being defined by a plurality of vanes disposed at a portion of the housing between the top wall and the bottom wall, the vanes being angled downward relative to the handle portion;
- and
- a mixing area formed in an area between the aperture array, the top wall, the bottom wall, a battery compartment, and the fan assembly, wherein access to the mixing area is via lateral air intake.
An aperture array for a blower, the blower comprising a housing including a handle portion, a top wall and a bottom wall, the blower further including a fan assembly operably coupled to a motor to force air through a blower tube responsive to operation of the motor along a tube axis, the aperture array being provided at a portion of the housing to provide a path for air to the fan assembly, the aperture array comprising a plurality of vanes disposed at a portion of the housing between the top wall and the bottom wall, the vanes being angled downward toward the bottom wall, wherein a mixing area is formed in an area between the aperture array, the top wall, the bottom wall, a battery compartment, and the fan assembly, and wherein access to the mixing area is via lateral air intake.
A blower comprising:
- a housing including a handle portion, a top wall, and a bottom wall;
- a motor;
- a fan assembly operably coupled to the motor to force air through a blower tube responsive to operation of the motor, the blower tube defining a tube axis;
- and
- an aperture array provided at a portion of the housing to provide a path for air to the fan assembly, the aperture array being defined by a plurality of vanes disposed at a portion of the housing between the top wall and the bottom wall, the vanes being angled downward relative to the handle portion,
- wherein the vanes are provided in a first array disposed on one sidewall of the housing and a second array disposed on another sidewall of the housing, and
- wherein the fan assembly is coaxial with the tube axis of the blower tube.
Dependencies are inferred from the claim text.