JPWO2021193755A1 - - Google Patents

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Publication number
JPWO2021193755A1
JPWO2021193755A1 JP2022510620A JP2022510620A JPWO2021193755A1 JP WO2021193755 A1 JPWO2021193755 A1 JP WO2021193755A1 JP 2022510620 A JP2022510620 A JP 2022510620A JP 2022510620 A JP2022510620 A JP 2022510620A JP WO2021193755 A1 JPWO2021193755 A1 JP WO2021193755A1
Authority
JP
Japan
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.)
Granted
Application number
JP2022510620A
Other versions
JP7440617B2 (ja
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 filed Critical
Publication of JPWO2021193755A1 publication Critical patent/JPWO2021193755A1/ja
Application granted granted Critical
Publication of JP7440617B2 publication Critical patent/JP7440617B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/001—Shrouded propellers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
    • F04D29/526—Details of the casing section radially opposing blade tips
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/542—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/541—Specially adapted for elastic fluid pumps
    • F04D29/545—Ducts
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts
    • B64U10/13—Flying platforms
    • B64U10/14—Flying platforms with four distinct rotor axes, e.g. quadcopters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U30/00—Means for producing lift; Empennages; Arrangements thereof
    • B64U30/20—Rotors; Rotor supports
    • B64U30/26—Ducted or shrouded rotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U50/00—Propulsion; Power supply
    • B64U50/10—Propulsion
    • B64U50/19—Propulsion using electrically powered motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise
    • F05D2260/963—Preventing, counteracting or reducing vibration or noise by Helmholtz resonators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
JP2022510620A 2020-03-26 2021-03-24 消音器付送風機、及びプロペラ付移動体 Active JP7440617B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020055557 2020-03-26
JP2020055557 2020-03-26
PCT/JP2021/012358 WO2021193755A1 (ja) 2020-03-26 2021-03-24 消音器付送風機、及びプロペラ付移動体

Publications (2)

Publication Number Publication Date
JPWO2021193755A1 true JPWO2021193755A1 (ja) 2021-09-30
JP7440617B2 JP7440617B2 (ja) 2024-02-28

Family

ID=77890697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022510620A Active JP7440617B2 (ja) 2020-03-26 2021-03-24 消音器付送風機、及びプロペラ付移動体

Country Status (5)

Country Link
US (1) US11795974B2 (ja)
EP (1) EP4130490A4 (ja)
JP (1) JP7440617B2 (ja)
CN (1) CN115066561A (ja)
WO (1) WO2021193755A1 (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7248686B2 (ja) * 2018-08-14 2023-03-29 富士フイルム株式会社 消音システム
CN112868059B (zh) * 2018-10-19 2024-06-04 富士胶片株式会社 音响系统
DE102020121031A1 (de) * 2020-08-10 2022-02-10 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Luftfahrzeug und dessen Herstellung
DE102020121032B4 (de) * 2020-08-10 2024-09-26 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Luftfahrzeug und dessen Herstellung
CN116499781B (zh) * 2022-05-20 2024-05-17 连云港观旭电力节能设备有限公司 一种消音器测试方法、系统、装置及介质
US12000410B2 (en) * 2022-05-27 2024-06-04 Toyota Motor Engineering & Manufacturing North America, Inc. Shroud for an air moving device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04265500A (ja) * 1991-02-21 1992-09-21 Matsushita Electric Ind Co Ltd 送風機
WO2014006650A1 (ja) * 2012-07-03 2014-01-09 三菱電機株式会社 空気調和機の室内機、及びこの室内機を備えた空気調和機
WO2020036031A1 (ja) * 2018-08-17 2020-02-20 富士フイルム株式会社 区画部材、乗物、及び電子機器
WO2020036029A1 (ja) * 2018-08-14 2020-02-20 富士フイルム株式会社 消音システム
JP2020040511A (ja) * 2018-09-10 2020-03-19 株式会社菊池製作所 マルチコプターおよび消音装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4506206B2 (ja) 2004-03-01 2010-07-21 ソニー株式会社 ファン装置
WO2009152420A2 (en) * 2008-06-13 2009-12-17 The Penn State Research Foundation Dipole flow driven resonators for fan noise mitigation
JP4823288B2 (ja) * 2008-09-30 2011-11-24 株式会社日立製作所 電子機器の消音装置
CN112912953B (zh) * 2018-10-19 2023-11-10 富士胶片株式会社 隔音系统
CN113646543B (zh) * 2019-04-24 2024-04-30 富士胶片株式会社 带消音器的送风机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04265500A (ja) * 1991-02-21 1992-09-21 Matsushita Electric Ind Co Ltd 送風機
WO2014006650A1 (ja) * 2012-07-03 2014-01-09 三菱電機株式会社 空気調和機の室内機、及びこの室内機を備えた空気調和機
WO2020036029A1 (ja) * 2018-08-14 2020-02-20 富士フイルム株式会社 消音システム
WO2020036031A1 (ja) * 2018-08-17 2020-02-20 富士フイルム株式会社 区画部材、乗物、及び電子機器
JP2020040511A (ja) * 2018-09-10 2020-03-19 株式会社菊池製作所 マルチコプターおよび消音装置

Also Published As

Publication number Publication date
US20220389939A1 (en) 2022-12-08
JP7440617B2 (ja) 2024-02-28
US11795974B2 (en) 2023-10-24
EP4130490A4 (en) 2023-09-13
WO2021193755A1 (ja) 2021-09-30
EP4130490A1 (en) 2023-02-08
CN115066561A (zh) 2022-09-16

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