公开(公告)号：WO2014150494A2

公开(公告)日：2014-09-25

申请号：PCT/US2014023421

申请日：2014-03-11

Applicant: REGAL BELOIT AMERICA INC

Inventor： COCKS RACHELE BARBARA ,  HULL MICHAEL R ,  GOLM NORMAN C JR ,  BEIFUS BRIAN L ,  STAUFFER ZACHARY J ,  WARRINER LISA M

IPC: F04C18/22

CPC classification number: F01D5/141 ,  F04D29/282 ,  F04D29/305 ,  F05B2230/60 ,  Y10T29/49336

Abstract: In one aspect, a flexible fan blade for use in a centrifugal fan impeller having at least one of a rear plate and a front plate with an air inlet is provided. The flexible fan blade comprises a fixed central portion fixedly coupled to at least one of the front plate and the rear plate of the centrifugal fan impeller. The flexible fan blade also includes a trailing edge extending from the fixed central portion and being moveable between a first position and a second position. The trailing edge is fabricated from a compliant material. Furthermore, the trailing edge is flexible in relation to the fixed central portion between a first position and a second position. The flexible fan blade also includes a leading edge extending from the fixed central portion in opposed relation to the trailing edge.

Abstract translation: 一方面，提供了一种用于离心风扇叶轮的柔性风扇叶片，其具有后板和具有进气口的前板中的至少一个。 柔性风扇叶片包括固定地连接到离心风扇叶轮的前板和后板中的至少一个的固定中心部分。 柔性风扇叶片还包括从固定中心部分延伸并可在第一位置和第二位置之间移动的后缘。 后缘由柔顺材料制成。 此外，后缘在第一位置和第二位置之间相对于固定中心部分是柔性的。 柔性风扇叶片还包括从固定的中心部分相对于后缘延伸的前缘。