公开(公告)号：EP2944826A2

公开(公告)日：2015-11-18

申请号：EP15167726.7

申请日：2015-05-14

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： COCKS, Rachele Barbara ,  SHELTON, Kerry Baker ,  WESTHOFF, Joshua James

IPC: F04D29/42 ,  F04D29/68

Abstract: A centrifugal blower assembly includes a housing (18) having an inner surface (25) and an outer surface(28). The inner surface (25) of the housing (18) defines in part an interior space. The centrifugal blower also includes a first portion of texture applied to at least a first portion of at least one of the inner surface (25) and the outer surface (28) of the housing. The first portion of texture has a first height based at least in part on a local boundary layer height of an airflow moving across at least one of the inner surface (25) and the outer surface (28) respectively. The first portion of texture is configured to generate a turbulent flow within the airflow moving across the first portion of texture.

公开(公告)号：EP2944826B1

公开(公告)日：2020-07-29

申请号：EP15167726.7

申请日：2015-05-14

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： COCKS, Rachele Barbara ,  SHELTON, Kerry Baker ,  WESTHOFF, Joshua James

IPC: F04D29/42 ,  F04D29/68 ,  F04D17/10

公开(公告)号：EP2944826A3

公开(公告)日：2016-01-13

申请号：EP15167726.7

申请日：2015-05-14

Applicant: REGAL BELOIT AMERICA, INC.

Inventor： COCKS, Rachele Barbara ,  SHELTON, Kerry Baker ,  WESTHOFF, Joshua James

IPC: F04D29/42 ,  F04D29/68

Abstract: A centrifugal blower assembly includes a housing (18) having an inner surface (25) and an outer surface(28). The inner surface (25) of the housing (18) defines in part an interior space. The centrifugal blower also includes a first portion of texture applied to at least a first portion of at least one of the inner surface (25) and the outer surface (28) of the housing. The first portion of texture has a first height based at least in part on a local boundary layer height of an airflow moving across at least one of the inner surface (25) and the outer surface (28) respectively. The first portion of texture is configured to generate a turbulent flow within the airflow moving across the first portion of texture.

Abstract translation: 离心式鼓风机组件包括具有内表面（25）和外表面（28）的壳体（18）。 壳体（18）的内表面（25）部分地限定内部空间。 离心鼓风机还包括施加到壳体的内表面（25）和外表面（28）中的至少一个的至少一个的第一部分的纹理的第一部分。 纹理的第一部分至少部分地基于分别穿过内表面（25）和外表面（28）中的至少一个移动的气流的局部边界层高度，具有第一高度。 纹理的第一部分被配置为在穿过纹理的第一部分移动的气流内产生湍流。