Centrifugal blower
First Claim
1. A centrifugal blower comprising:
- a housing comprising a compartment delimited by an annular wall, a radial air inlet being defined in the annular wall and communicated with the compartment, the compartment including an axial opening;
an impeller rotatably mounted in the compartment, the impeller including a hub and a plurality of blades; and
a guide cover mounted on top edges of the blades, the guiding cover including an axial air inlet in a central portion thereof and an outer end extending radially outward, the guiding cover covering the axial opening of the compartment without in contact with the housing, the outer end of the guiding cover covering a top of the axial opening of the compartment without being in contact with the housing, thereby maintaining wind pressure in the compartment;
the blades and the guiding cover turning synchronously when the impeller turns, airflow being driven by the blades and guided by the guiding cover and exiting the housing via the radial air outlet.
2 Assignments
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Accused Products
Abstract
A centrifugal blower includes a housing, an impeller, and a guiding cover. The housing includes a compartment delimited by an annular wall. A radial air inlet is defined in the annular wall and communicated with the compartment. The compartment includes an axial opening. The impeller is rotatably mounted in the compartment and includes a hub and a plurality of blades. The guiding cover is mounted on top edges of the blades and includes an axial air inlet in a central portion thereof. The guiding cover covers the axial opening of the compartment without in contact with the housing. The blades and the guiding cover turn synchronously when the impeller turns. Airflow is driven by the blades and guided by the guiding cover and exits the housing via the radial air outlet.
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Citations
9 Claims
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1. A centrifugal blower comprising:
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a housing comprising a compartment delimited by an annular wall, a radial air inlet being defined in the annular wall and communicated with the compartment, the compartment including an axial opening; an impeller rotatably mounted in the compartment, the impeller including a hub and a plurality of blades; and a guide cover mounted on top edges of the blades, the guiding cover including an axial air inlet in a central portion thereof and an outer end extending radially outward, the guiding cover covering the axial opening of the compartment without in contact with the housing, the outer end of the guiding cover covering a top of the axial opening of the compartment without being in contact with the housing, thereby maintaining wind pressure in the compartment; the blades and the guiding cover turning synchronously when the impeller turns, airflow being driven by the blades and guided by the guiding cover and exiting the housing via the radial air outlet. - View Dependent Claims (2, 3)
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4. A centrifugal blower comprising:
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a housing comprising a compartment delimited by an annular wall, a radial air inlet and a plurality of radial auxiliary air inlets being defined in the annular wall with the radial air inlet being communicated with the compartment, the compartment including an axial opening; an impeller rotatably mounted in the compartment, the impeller including a hub and a plurality of blades; and a guiding cover mounted on top edges of the blades, the guiding cover including an axial air inlet in a central portion thereof, the guiding cover covering the axial opening of the compartment without being in contact with the housing; the blades and the guiding cover turning synchronously when the impeller turns, airflow being driven by the blades and guided by the guiding cover and exiting the housing via the radial air outlet. - View Dependent Claims (5, 6, 7, 8, 9)
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Specification