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1. JP2020128712 - CENTRIFUGAL BLOWER

Office
Japon
Numéro de la demande 2019020904
Date de la demande 07.02.2019
Numéro de publication 2020128712
Date de publication 27.08.2020
Type de publication A
CIB
F04D 29/44
FMÉCANIQUE; ÉCLAIRAGE; CHAUFFAGE; ARMEMENT; SAUTAGE
04"MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF; POMPES À LIQUIDES OU À FLUIDES COMPRESSIBLES
DPOMPES À DÉPLACEMENT NON POSITIF
29Parties constitutives, détails ou accessoires
40Carters d'enveloppe; Tubulures pour le fluide énergétique
42pour pompes radiales ou hélicocentrifuges
44Moyens de guidage du fluide, p.ex. diffuseurs
CPC
F04D 29/44
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
40Casings; Connections of working fluid
42for radial or helico-centrifugal pumps
44Fluid-guiding means, e.g. diffusers
Déposants DENSO CORP
株式会社デンソー
Inventeurs GOTO YOSHIHIRO
後藤 良寛
Mandataires 特許業務法人ゆうあい特許事務所
Titre
(EN) CENTRIFUGAL BLOWER
(JA) 遠心送風機
Abrégé
(EN)

PROBLEM TO BE SOLVED: To guide air to an air introduction passage of an air conditioning unit with low pressure loss even when a position of the air introduction passage is deviated with respect to a centrifugal blower in a rotating shaft direction of the rotating shaft.

SOLUTION: A centrifugal blower includes a scroll casing 30 forming a spiral air passage for collecting air blown out from a centrifugal fan 20, and a partitioning plate 35 for partitioning the spiral air passage into a first air passage Ap1 at one side in a rotating shaft direction and a second air passage Ap2 at the other side in the rotating shaft direction. The partitioning plate 35 is spirally formed at a radial outer side on a rotating shaft of the centrifugal fan 20 as a shaft center, and an end portion 35a at the radial outer side, of the rotating shaft of the partitioning plate is displaced to the other side in the axial direction of the rotating shaft from a winding start portion 351 to a winding end portion 352 of the partitioning plate 35.

SELECTED DRAWING: Figure 3

COPYRIGHT: (C)2020,JPO&INPIT

(JA)

【課題】遠心送風機に対して空調ユニットの空気導入通路の位置が回転軸の回転軸方向にずれている場合でも、低圧力損失で空調ユニットの空気導入通路に空気を導入できるようにする。
【解決手段】遠心ファン20から送風された空気を集合させる渦巻き状の空気通路を形成するスクロールケーシング30と、渦巻き状の空気通路を回転軸方向一方側の第1空気通路Ap1と回転軸方向他方側の第2空気通路Ap2とに仕切る仕切板35を備える。仕切板35は、遠心ファン20の回転軸を軸心とする径方向外側に螺旋状に形成され、仕切板の回転軸の径方向外側の端部35aは、仕切板35の巻き始め部351から巻き終わり部352に近付くにつれて回転軸の軸方向の他方側に変位している。
【選択図】図3

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