公开(公告)号：US10895266B2

公开(公告)日：2021-01-19

申请号：US16122627

申请日：2018-09-05

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： Sahand Pirouzpanah ,  Joseph A. Henry

IPC: F04D29/46 ,  F04D29/42 ,  F24F7/06

Abstract: A centrifugal blower assembly comprises a scroll wall and a pair of opposing sidewalls. 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 blower outlet defines a blower outlet area. An adjustable outlet plate is pivotably coupled to the pair of opposing sidewalls such that the adjustable outlet plate is moveable between a first position to define a first blower outlet area and a second position to define a second blower outlet area.

公开(公告)号：US20190072109A1

公开(公告)日：2019-03-07

申请号：US16122627

申请日：2018-09-05

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： Sahand Pirouzpanah ,  Joseph A. Henry

IPC: F04D29/42 ,  F04D29/46 ,  F24F7/06

Abstract: A centrifugal blower assembly comprises a scroll wall and a pair of opposing sidewalls. 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 blower outlet defines a blower outlet area. An adjustable outlet plate is pivotably coupled to the pair of opposing sidewalls such that the adjustable outlet plate is moveable between a first position to define a first blower outlet area and a second position to define a second blower outlet area.

公开(公告)号：US20170342992A1

公开(公告)日：2017-11-30

申请号：US15163134

申请日：2016-05-24

Applicant: Regal Beloit America, Inc.

Inventor： Sahand Pirouzpanah ,  Joseph A. Henry ,  Shirish M. Vatkar

IPC: F04D25/08 ,  F04D29/28 ,  F04D29/42 ,  F04D29/66

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.