公开(公告)号：US10473113B2

公开(公告)日：2019-11-12

申请号：US15371263

申请日：2016-12-07

Applicant: DENSO CORPORATION

Inventor： Hiroyuki Usami ,  Masaharu Sakai ,  Sho Kosaka ,  Yohei Kamiya

IPC: F04D29/42 ,  F04D13/06 ,  F04D17/16 ,  F04D29/053 ,  F04D29/28 ,  F04D29/16

Abstract: A centrifugal blower includes a rotation shaft, an impeller, a casing. The impeller includes a plurality of blades and a side panel. The casing accommodates the impeller and includes an air intake portion positioned adjacent to the side panel. The air intake portion includes a downstream end portion and an inner wall surface. The side panel includes an upstream end portion and an inner panel surface that is an inner surface of the side panel. The downstream end portion and the upstream end portion face each other across a space in an angular range. A difference between a smallest inner radius of the inner wall surface of the air intake portion and a smallest inner radius of the inner panel surface is smaller than or equal to a thickness of the side panel in the angular range.