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

IPC: F04D29/42 ,  F04D17/08 ,  F04D29/62 ,  F04D29/44

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.

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

IPC: F04D29/42 ,  F04D17/08 ,  F04D29/62 ,  F04D29/44 ,  F04D29/16

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.

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

IPC: F04D29/28 ,  F04D29/30 ,  F04D29/42 ,  F04D25/08

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.

公开(公告)号：US11193499B2

公开(公告)日：2021-12-07

申请号：US16219291

申请日：2018-12-13

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： Sahand Pirouzpanah ,  Rajavel Balaguru ,  Padmasri Nanduri ,  Joseph Aaron Henry ,  Shirish Vatkar

IPC: F04D29/42 ,  F04D17/08 ,  F04D29/62 ,  F04D29/44 ,  F04D29/16

Abstract: A centrifugal blower assembly includes a scroll wall, a pair of opposing sidewalls, and an adjustable 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. The blower outlet defines a blower outlet area. The adjustable cutoff plate is adjustably positioned within the cutout to define a notch defining a notch area. The notch area and the blower outlet area define a total blower outlet area.

公开(公告)号：US20190186499A1

公开(公告)日：2019-06-20

申请号：US16219291

申请日：2018-12-13

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： SAHAND Pirouzpanah ,  Rajavel Balaguru ,  Padmasri Nanduri ,  Joseph Aaron Henry ,  Shirish Vatkar

IPC: F04D29/42 ,  F04D17/08 ,  F04D29/44 ,  F04D29/62

CPC classification number: F04D29/4226 ,  F04D17/08 ,  F04D29/162 ,  F04D29/44 ,  F04D29/62

Abstract: A centrifugal blower assembly includes a scroll wall, a pair of opposing sidewalls, and an adjustable 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. The blower outlet defines a blower outlet area. The adjustable cutoff plate is adjustably positioned within the cutout to define a notch defining a notch area. The notch area and the blower outlet area define a total blower outlet area.

公开(公告)号：US10030667B2

公开(公告)日：2018-07-24

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

IPC: F04D29/28 ,  F04D25/08 ,  F04D29/30 ,  F04D29/42

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.