JPS57186097A - Axial-flow fan - Google Patents

Axial-flow fan

Info

Publication number
JPS57186097A
JPS57186097A JP56070741A JP7074181A JPS57186097A JP S57186097 A JPS57186097 A JP S57186097A JP 56070741 A JP56070741 A JP 56070741A JP 7074181 A JP7074181 A JP 7074181A JP S57186097 A JPS57186097 A JP S57186097A
Authority
JP
Japan
Prior art keywords
impeller
static
flow
rotary direction
vane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56070741A
Inventor
Hajime Fujita
Shigenori Sato
Kunihiro Takahashi
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56070741A priority Critical patent/JPS57186097A/en
Publication of JPS57186097A publication Critical patent/JPS57186097A/en
Application status is Pending legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/40Casings; Connections of working fluid
    • F04D29/52Casings; Connections of working fluid for axial pumps
    • F04D29/54Fluid-guiding means, e.g. diffusers
    • F04D29/541Specially adapted for elastic fluid pumps
    • F04D29/542Bladed diffusers
    • F04D29/544Blade shapes

Abstract

PURPOSE:To improve the efficiency of a fan and to reduce the noise by providing a plurality of static vanes at the delivery side of an impeller while bending in the rotary direction thereby reducing the slewing component of the flow delivered from the impeller. CONSTITUTION:The outer tube is eliminated from the delivery side of the impeller 1 while a plurality of static vanes 3 bent in the rotary direction B are provided radially at the delivery side. The flow from the impeller 1 will slew in the rotary direction B of the impeller 1 and the slew flow is reduced by the static vane 3 thereby the static pressure will increase to improve the efficiency of the fan. Furthermore when bending the static vane 3 in the rotary direction B of the vane 1, the skew effect is produced and the noise due to the collision between the flow from the impeller 1 and the static vane 3 can be suppressed.
JP56070741A 1981-05-13 1981-05-13 Axial-flow fan Pending JPS57186097A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56070741A JPS57186097A (en) 1981-05-13 1981-05-13 Axial-flow fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56070741A JPS57186097A (en) 1981-05-13 1981-05-13 Axial-flow fan

Publications (1)

Publication Number Publication Date
JPS57186097A true JPS57186097A (en) 1982-11-16

Family

ID=13440234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56070741A Pending JPS57186097A (en) 1981-05-13 1981-05-13 Axial-flow fan

Country Status (1)

Country Link
JP (1) JPS57186097A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1085792C (en) * 1999-03-25 2002-05-29 台达电子工业股份有限公司 Fan forced inducer device
USRE39774E1 (en) 1999-03-02 2007-08-14 Delta Electronics, Inc. Fan guard structure for additional supercharging function
WO2019146364A1 (en) * 2018-01-29 2019-08-01 パナソニックIpマネジメント株式会社 Blower device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE39774E1 (en) 1999-03-02 2007-08-14 Delta Electronics, Inc. Fan guard structure for additional supercharging function
CN1085792C (en) * 1999-03-25 2002-05-29 台达电子工业股份有限公司 Fan forced inducer device
WO2019146364A1 (en) * 2018-01-29 2019-08-01 パナソニックIpマネジメント株式会社 Blower device

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