公开(公告)号：WO2017143046A1

公开(公告)日：2017-08-24

申请号：PCT/US2017/018146

申请日：2017-02-16

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： PIROUZPANAH, Sahand ,  FENG, Sylvia (Yuan) ,  SELKING, Paul ,  VATKAR, Shirish ,  HENRY, Joseph ,  BALAGURU, Rajavel

IPC: F04D29/28 ,  F04D29/30

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.

Abstract translation: 向前弯曲的鼓风机叶轮具有风扇叶片，其具有相对较小的前缘叶片角度和相对较长的平均弧线。 鼓风机叶轮还包括邻近鼓风机叶轮入口的前缘凹口。 前缘切口消除了如果这种切口不存在时可能出现的抖动。