公开(公告)号：WO2023059721A1

公开(公告)日：2023-04-13

申请号：PCT/US2022/045783

申请日：2022-10-05

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： LYONS, Leslie A. ,  FISHER, David A.

IPC: F04D29/42 ,  F04D29/30 ,  F04D29/44 ,  F04D29/66 ,  H02K9/06 ,  F04D17/10 ,  F04D27/001

Abstract: A blower comprising a blower housing, a blower wheel, and a motor. The blower wheel is within the blower housing and has a plurality of blades. The motor is operatively connected to the blower wheel to rotate the blower wheel about an axis of rotation. The blower housing comprises a wall perpendicular to the axis of rotation. The wall has a static tap hole having a leading edge and a trailing edge. The static tap hole is positioned near an axial side of the blower wheel such that as the blower wheel rotates, any of the blades of the blower wheel passes the leading edge of the static tap hole before passing the trailing edge of the static tap hole. The wall comprises a protrusion protruding axially from the wall and toward the blower wheel. The protrusion is located adjacent the trailing edge of the static tap hole.

公开(公告)号：WO2015094940A1

公开(公告)日：2015-06-25

申请号：PCT/US2014/069914

申请日：2014-12-12

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： LYONS, Leslie A.

IPC: F01D5/20

CPC classification number: F04D29/30 ,  F04D29/282 ,  F05D2240/304 ,  Y10T29/49327

Abstract: A blower assembly includes a housing including an outlet and a cutoff point positioned proximate the outlet. The blower assembly also includes an impeller including a plurality of blades that each includes a tip portion including a radially outer edge and a transition point that divides the radially outer edge into a first portion and a second portion. The impeller is positioned within the housing such that a first radial gap is defined between the cutoff point and the first portion and a second radial gap is defined between the cutoff point and the second portion. The first radial gap includes a constant width that is shorter than a width of the second radial gap.

Abstract translation: 鼓风机组件包括壳体，其包括出口和位于出口附近的截止点。 鼓风机组件还包括叶轮，叶轮包括多个叶片，每个叶片包括包括径向外边缘的尖端部分和将径向外边缘分成第一部分和第二部分的过渡点。 叶轮定位在壳体内，使得在截止点和第一部分之间限定第一径向间隙，并且在截止点和第二部分之间限定第二径向间隙。 第一径向间隙包括比第二径向间隙的宽度短的恒定宽度。