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    LOW NOISE HIGH EFFICIENCY CENTRIFUGAL BLOWER
    1.
    发明申请
    LOW NOISE HIGH EFFICIENCY CENTRIFUGAL BLOWER 审中-公开
    低噪声高效离心式风机

    公开(公告)号：WO2017205031A1

    公开(公告)日：2017-11-30

    申请号：PCT/US2017/031139

    申请日：2017-05-04

    Applicant: REGAL BELOIT AMERICA, INC.

    Inventor： PIROUZPANAH, Sahand ,  HENRY, Joseph ,  VATKAR, Shirish M.

    IPC: F04D29/28 ,  F04D29/42 ,  F04D29/44 ,  F04D29/46 ,  F04D29/62

    CPC classification number: F04D25/08 ,  F04D29/282 ,  F04D29/283 ,  F04D29/4226 ,  F04D29/441 ,  F04D29/661

    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.

    Abstract translation: 用于HVACR应用的离心式鼓风机包括鼠笼前向弯曲鼓风机风扇和蜗壳。 鼓风扇包括多个叶片，所述叶片构造成当鼓风扇以第一速度旋转时从叶片之间沿径向向外和切向排出空气。 如此排出的空气具有偏差角度，该偏差角度定义为排出空气的方向与叶片出口角度之间的差异。 涡旋壳体具有花键形壁，该花键形壁具有轴向横截面，该轴向横截面构造成使得在轴向平面处从鼓风机排出的空气的偏差角度在围绕鼓风机之间的圆周方向上偏离不超过百分之十五 花键形壁和鼓风扇，并且使得花键形壁和鼓风扇之间的平均空气切向速度偏差不超过百分之三十。

    A CENTRIFUGAL BLOWER ASSEMBLY
    2.
    发明申请
    A CENTRIFUGAL BLOWER ASSEMBLY 审中-公开

    公开(公告)号：WO2020115540A1

    公开(公告)日：2020-06-11

    申请号：PCT/IB2018/059795

    申请日：2018-12-07

    Applicant: REGAL BELOIT AMERICA, INC.

    Inventor： PIROUZPANAH, Sahand ,  VAISHYA, Mrudul Omprakash ,  PATEL, Chirag S. ,  KAMBHAMMETTU, Vijay ,  PADIRI, SaiGeetha ,  NIMMA, Narendra

    IPC: F04D29/42 ,  F04D29/44 ,  F04D29/46 ,  F04D17/08 ,  F24F7/06

    Abstract: A centrifugal blower assembly includes a scroll wall and at least one sidewall coupled to the scroll wall such that the scroll wall and the at least one sidewall define a blower chamber and a blower outlet, wherein the at least one sidewall includes an opening defined therethrough. The centrifugal blower assembly also includes an inlet ring coupled to the at least one sidewall proximate the opening. The inlet ring includes a first portion coupled to the at least one sidewall, a second portion extending from the first portion through the opening into the blower chamber, and an inner surface that defines a blower inlet and extends along the first portion and the second portion, wherein the inner surface on the second portion is obliquely oriented with respect to the axis of rotation.

    DUAL STAGE BLOWER ASSEMBLY
    3.
    发明申请
    DUAL STAGE BLOWER ASSEMBLY 审中-公开

    公开(公告)号：WO2020124024A1

    公开(公告)日：2020-06-18

    申请号：PCT/US2019/066360

    申请日：2019-12-13

    Applicant: REGAL BELOIT AMERICA, INC.

    Inventor： PIROUZPANAH, Sahand ,  HENRY, Joseph A.

    IPC: F04D25/06 ,  F04D17/12 ,  F04D17/16 ,  F04D25/08 ,  F04D29/28 ,  F04D29/42

    Abstract: A dual stage blower assembly includes a first fan configured to rotate about the rotational axis and including a first plurality blades. The first plurality of blades include a plurality of backward curved blades. The dual stage blower assembly also includes a second fan circumscribing the first fan and configured to rotate about the rotational axis. The second fan includes a second plurality of blades, wherein the second plurality of blades include one of a plurality of forward curved blades, a plurality of a radial blades, or a plurality of backward curved blades. At least one motor is coupled to the first fan and the second fan and configured to rotate the first fan and the second fan about the rotational axis.

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