公开(公告)号：WO2023009436A1

公开(公告)日：2023-02-02

申请号：PCT/US2022/038182

申请日：2022-07-25

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： PADIRI, Saigeetha ,  KAMBHAMMETTU, Vijay

IPC: F04D29/42 ,  F04D25/06 ,  F04D17/08 ,  F04D29/00

Abstract: A blower fan assembly comprising a scroll housing, a forward curved blower wheel, and a blower motor adapted to rotate the blower wheel about a blower wheel axis. The forward-curved blower wheel comprises a plurality of fan blades circumferentially spaced about the blower wheel axis. Each of the fan blades has a leading edge with a leading edge angle and a trailing edge with a trailing edge angle. The leading edge angle is at least 50° and not more than 80°. The trailing edge angle is at least 5.5° and not more than 18.5°. The outer radius is not more than 4 inches (101.6 mm).

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.