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公开(公告)号：US11460045B2
公开(公告)日：2022-10-04
申请号：US17518266
申请日：2021-11-03
Applicant: REGAL BELOIT AMERICA, INC.
Inventor： Sahand Pirouzpanah , Rajavel Balaguru , Padmasri Nanduri , Joseph Aaron Henry , Shirish Vatkar
Abstract: A centrifugal blower assembly includes a scroll wall, a pair of opposing sidewalls, and a cutoff plate. The scroll wall is positioned between the pair of opposing sidewalls such that the scroll wall and opposing sidewalls together define a blower chamber and a blower outlet. The scroll wall extends circumferentially between a cutoff point to an end point and defines a cutout extending circumferentially from the cutoff point. The scroll wall, the pair of opposing sidewalls, and the cutoff point define a blower outlet, wherein the blower outlet defines a blower outlet area. The cutoff plate extends circumferentially from the end point. The cutoff plate defines a notch defining a notch area, the notch area and the blower outlet area define a total blower outlet area, wherein the notch includes a center portion that defines a portion of an elliptical shape.
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公开(公告)号：US20220163039A1
公开(公告)日：2022-05-26
申请号：US17668820
申请日：2022-02-10
Applicant: Regal Beloit America, Inc.
Inventor： Sahand Pirouzpanah , Joseph A. Henry , Shirish M. Vatkar
Abstract: A centrifugal blower for HVACR applications includes a squirrel cage forward-curved blower fan and a scroll housing. The blower fan comprises a plurality of blades that are configured to emit air radially outward and tangentially from between the blades when the blower fan rotates at a first speed. The air so emitted has a deviation angle defined as the difference between the direction of the emitted air and the blade exit angle. The scroll housing has a spline-shaped wall that has an axial cross-section that is configured such that the deviation angle of the air emitted from the blower fan at an axial plane deviates by no more than fifteen percent circumferentially about the blower fan in-between the spline-shaped wall and the blower fan and such that the average tangential velocity of air between the spline-shaped wall and the blower fan deviates by no more than thirty percent.
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公开(公告)号：US10995767B2
公开(公告)日：2021-05-04
申请号：US15969408
申请日：2018-05-02
Applicant: Regal Beloit America, Inc.
Inventor： Sahand Pirouzpanah
Abstract: A fan blade for a fan impeller is coupled to a front endring and a rear endring. The fan blade includes a first portion, a second portion, a third portion, a leading edge, and a trailing edge. The second portion is positioned on a first side of the first portion. The third portion is positioned on a second side of the first portion. The leading edge defines a leading edge blade angle and the trailing edge defines a trailing edge blade angle. The leading edge blade angle and the trailing edge blade angle are constant within the first portion and the leading edge blade angle and the trailing edge blade angle vary within the second portion and the third portion.
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公开(公告)号：US20190338782A1
公开(公告)日：2019-11-07
申请号：US15969408
申请日：2018-05-02
Applicant: Regal Beloit America, Inc.
Inventor： Sahand Pirouzpanah
Abstract: A fan blade for a fan impeller is coupled to a front endring and a rear endring. The fan blade includes a first portion, a second portion, a third portion, a leading edge, and a trailing edge. The second portion is positioned on a first side of the first portion. The third portion is positioned on a second side of the first portion. The leading edge defines a leading edge blade angle and the trailing edge defines a trailing edge blade angle. The leading edge blade angle and the trailing edge blade angle are constant within the first portion and the leading edge blade angle and the trailing edge blade angle vary within the second portion and the third portion.
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公开(公告)号：US20170234323A1
公开(公告)日：2017-08-17
申请号：US15046129
申请日：2016-02-17
Applicant: Regal Beloit America, Inc.
Inventor： Sahand Pirouzpanah , Sylvia (Yuan) Feng , Paul Nathanael Selking , Shirish Vatkar , Joseph Henry , Rajavel Balaguru
CPC classification number: F04D29/283 , F04D17/105 , F04D25/08 , F04D29/282 , F04D29/30 , F04D29/424
Abstract: A forward curved blower wheel has fan blades having relatively small leading edge blades angles and a relatively lengthy mean camber lines. The blower wheel also comprises leading edge notches adjacent its blower wheel inlet. The leading edge notches eliminate buffeting that would occur with such blades if such notches were not present.
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Patent Agency Ranking
公开(公告)号：US20220056924A1
公开(公告)日：2022-02-24
申请号：US17518266
申请日：2021-11-03
Applicant: REGAL BELOIT AMERICA, INC.
Inventor： Sahand Pirouzpanah , Rajavel Balaguru , Padmasri Nanduri , Joseph Aaron Henry , Shirish Vatkar
Abstract: A centrifugal blower assembly includes a scroll wall, a pair of opposing sidewalls, and a cutoff plate. The scroll wall is positioned between the pair of opposing sidewalls such that the scroll wall and opposing sidewalls together define a blower chamber and a blower outlet. The scroll wall extends circumferentially between a cutoff point to an end point and defines a cutout extending circumferentially from the cutoff point. The scroll wall, the pair of opposing sidewalls, and the cutoff point define a blower outlet, wherein the blower outlet defines a blower outlet area. The cutoff plate extends circumferentially from the end point. The cutoff plate defines a notch defining a notch area, the notch area and the blower outlet area define a total blower outlet area, wherein the notch includes a center portion that defines a portion of an elliptical shape.
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公开(公告)号：US11255348B2
公开(公告)日：2022-02-22
申请号：US16353850
申请日：2019-03-14
Applicant: Regal Beloit America, Inc.
Inventor： Anthony Maiorano , Sahand Pirouzpanah , Joseph A. Henry
Abstract: A blower assembly includes a fan assembly configured to rotate about an axis and having a fan inlet ring that at least partially defines a fan inlet and a fan outlet. The blower assembly also includes a frame assembly coupled to the fan assembly and a recirculation damper coupled to the frame assembly. The recirculation damper and the fan inlet ring define an axial gap therebetween to reduce recirculation of an airflow discharged from the fan outlet.
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公开(公告)号：US20190145635A1
公开(公告)日：2019-05-16
申请号：US16189364
申请日：2018-11-13
Applicant: Regal Beloit America, Inc.
Inventor： Sahand Pirouzpanah
IPC: F24F1/0059 , F24F13/20
Abstract: An air handling system configured to channel an airflow includes a blower assembly including a blower inlet and a blower outlet and a primary heat exchanger positioned downstream of the blower outlet. The air handling system also includes a secondary heat exchanger positioned upstream of the blower inlet such that the airflow is channeled sequentially through the secondary heat exchanger, the blower assembly, and the primary heat exchanger.
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公开(公告)号：US20180320697A1
公开(公告)日：2018-11-08
申请号：US15585852
申请日：2017-05-03
Applicant: Regal Beloit America, Inc.
Inventor： Joseph Aaron Henry , Sahand Pirouzpanah , Shirish M. Vatkar
IPC: F04D25/06 , F04D17/16 , F04D29/62 , F04D29/053 , F04D29/28
CPC classification number: F04D25/06 , F04D17/16 , F04D29/053 , F04D29/281 , F04D29/624
Abstract: A blower assembly kit for fabricating a plurality of blower assemblies is provided. A first of the plurality of blower assemblies is configured for use with a first motor having a rotor and a second of the plurality of blower assemblies is configured for use with a second motor having a shaft. The kit includes a body having a member for generating air flow, a first adapter having a first connection for connecting the first adapter to the body and a second connection for connecting the first adapter to the rotor of the first motor, and having a second adapter having a first connection connecting the second adapter to the body and a second connection connecting the second adapter to the shaft of the second motor. The body and the first adapter provide the first blower assembly and the body and the second adapter provide the second blower assembly.
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20.发明申请公开(公告)号：US20180258948A1
公开(公告)日：2018-09-13
申请号：US15454593
申请日：2017-03-09
Applicant: Regal Beloit America, Inc.
Inventor： Sahand Pirouzpanah , Shradha S. Nahar
CPC classification number: F04D29/441 , F04D17/16 , F04D17/162 , F04D25/08 , F04D29/283 , F04D29/444 , F04D29/626 , F05D2250/51
Abstract: A centrifugal blower assembly includes a housing and a blower wheel coupled to the housing. The blower wheel includes a plurality of blades circumferentially-spaced about an axis of rotation. Each blade includes a length and is oriented at a first angle along the length with respect to the rotational axis. The centrifugal blower assembly also includes a plurality of circumferentially-spaced fins coupled in flow communication with said blower wheel, said plurality of fins configured to direct an inlet airflow into the blower wheel such that a relative velocity direction of the inlet airflow is oriented at the first angle with respect to the rotational axis.
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