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1. WO2016181821 - CENTRIFUGAL BLOWER

Publication Number WO/2016/181821
Publication Date 17.11.2016
International Application No. PCT/JP2016/063008
International Filing Date 26.04.2016
IPC
F04D 29/42 2006.01
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 for working fluid
42for radial or helico-centrifugal pumps
F04D 29/28 2006.01
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
26Rotors specially adapted for elastic fluids
28for centrifugal or helico-centrifugal pumps
F04D 29/66 2006.01
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
66Combating cavitation, whirls, noise, vibration, or the like; Balancing
CPC
F04D 17/16
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
17Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
08Centrifugal pumps
16for displacing without appreciable compression
F04D 25/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
25Pumping installations or systems
02Units comprising pumps and their driving means
08the working fluid being air, e.g. for ventilation
F04D 29/281
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
26Rotors specially for elastic fluids
28for centrifugal or helico-centrifugal pumps ; for radial-flow or helico-centrifugal pumps
281for fans or blowers
F04D 29/30
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
26Rotors specially for elastic fluids
28for centrifugal or helico-centrifugal pumps ; for radial-flow or helico-centrifugal pumps
30Vanes
F04D 29/4226
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
4206especially adapted for elastic fluid pumps
4226Fan casings
F04D 29/441
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
441especially adapted for elastic fluid pumps
Applicants
  • 株式会社デンソー DENSO CORPORATION [JP]/[JP]
  • 株式会社SOKEN SOKEN, INC. [JP]/[JP]
Inventors
  • 石井 文也 ISHII Fumiya
  • 小田 修三 ODA Shuzo
  • 安田 真範 YASUDA Masanori
Agents
  • 特許業務法人ゆうあい特許事務所 YOU-I PATENT FIRM
Priority Data
2015-09931114.05.2015JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) CENTRIFUGAL BLOWER
(FR) SOUFFLANTE CENTRIFUGE
(JA) 遠心式送風機
Abstract
(EN)
Inside a blower case (10, 10A-10E) of a centrifugal blower (1), discharge air channels (13) extending farther outward in the radial direction of a rotating shaft (20a) are formed farther downstream along the flow of air than rear-edge parts (21b) of blades (21) of a centrifugal fan (20, 20A-20C, 20E). The discharge air channels (13) include proximal air channels (131, 131A-131C) which are in proximity to the rear-edge parts (21b) of the blades (21). When the axial length of each blade (21) in the rear-edge parts (21b) is denoted as the blade height (Lb) and the axial length of the centrifugal fan (20, 20A-20C, 20E) in the rear-edge parts (21b) is denoted as the fan height (Lf), the axial length (La) of each proximal air channel (131, 131A-131C) is equal to or greater than the blade height (Lb), and equal to or less than the fan height (Lf).
(FR)
Selon l'invention, à l'intérieur d'un carter de soufflante (10, 10A - 10E) d'une soufflante centrifuge (1), des canaux de décharge d'air (13) s'étendant plus loin vers l'extérieur dans la direction radiale d'un arbre rotatif (20a) sont formés plus loin en aval le long de l'écoulement d'air que des parties de bord arrière (21b) de pales (21) d'un ventilateur centrifuge (20, 20A - 20C, 20E). Les canaux de décharge d'air (13) comprennent des canaux d'air proximaux (131, 131A - 131C) qui sont à proximité des parties de bord arrière (21b) des pales (21). Quand la longueur axiale de chaque pale (21) dans les parties de bord arrière (21b) est indiquée comme étant la hauteur de pale (Lb) et que la longueur axiale du ventilateur centrifuge (20, 20A - 20C, 20E) dans les parties de bord arrière (21b) est indiquée comme étant la hauteur de ventilateur (Lf), la longueur axiale (La) de chaque canal d'air proximal (131, 131A - 131C) est supérieure ou égale à la hauteur de pale (Lb), et inférieure ou égale à la hauteur de ventilateur (Lf).
(JA)
遠心式送風機(1)の送風ケース(10、10A~10E)の内部には、遠心ファン(20、20A~20C、20E)の各羽根(21)の後縁部(21b)よりも空気流れ下流側に回転軸(20a)の径方向外側に延びる吐出空気流路(13)が形成されている。吐出空気流路(13)は、各羽根(21)の後縁部(21b)に近接する近接空気流路(131、131A~131C)を含んでいる。そして、各羽根(21)の後縁部(21b)における軸方向の長さを羽根高さ(Lb)とし、遠心ファン(20、20A~20C、20E)の後縁部(21b)における軸方向の長さをファン高さ(Lf)としたとき、近接空気流路(131、131A~131C)は、軸方向の長さ(La)が、羽根高さ(Lb)以上、且つ、ファン高さ(Lf)以下となっている。
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