公开(公告)号：US11131320B2

公开(公告)日：2021-09-28

申请号：US16421195

申请日：2019-05-23

Applicant: Johnson Controls Technology Company

Inventor： Elton D. Ray ,  Bennie D. Hoyt ,  Paul J. Lucas ,  Jeffrey A. Leritz ,  Jordan R. Jensen

IPC: F04D29/46 ,  F28F13/06 ,  F04D1/00

Abstract: A centrifugal blower includes a centrifugal fan having a fan wheel that is configured to rotate about a rotational axis. The centrifugal blower includes a blower housing having a first side panel, a second side panel, and a wall extending about the rotational axis and between the first and second side panels. The centrifugal blower also includes a cutoff plate that is configured to extend about the rotational axis, where the cutoff plate includes a first end with a flange having a camber geometry and a second end that is configured to overlap with the wall such that an amount of overlap between the second end and the wall is adjustable to adjust a position of the flange relative to the fan wheel. The centrifugal blower further includes an exhaust port defined by the first side panel, the second side panel, the wall, and the flange.

公开(公告)号：US20200318650A1

公开(公告)日：2020-10-08

申请号：US16421195

申请日：2019-05-23

Applicant: Johnson Controls Technology Company

Inventor： Elton D. Ray ,  Bennie D. Hoyt ,  Paul J. Lucas ,  Jeffrey A. Leritz ,  Jordan R. Jensen

IPC: F04D29/46 ,  F04D1/00 ,  F28F13/06

Abstract: A centrifugal blower includes a centrifugal fan having a fan wheel that is configured to rotate about a rotational axis. The centrifugal blower includes a blower housing having a first side panel, a second side panel, and a wall extending about the rotational axis and between the first and second side panels. The centrifugal blower also includes a cutoff plate that is configured to extend about the rotational axis, where the cutoff plate includes a first end with a flange having a camber geometry and a second end that is configured to overlap with the wall such that an amount of overlap between the second end and the wall is adjustable to adjust a position of the flange relative to the fan wheel. The centrifugal blower further includes an exhaust port defined by the first side panel, the second side panel, the wall, and the flange.