EP3927976C0 - Device for reducing fan-generated noise - Google Patents

Device for reducing fan-generated noise

Info

Publication number
EP3927976C0
EP3927976C0 EP20704882.8A EP20704882A EP3927976C0 EP 3927976 C0 EP3927976 C0 EP 3927976C0 EP 20704882 A EP20704882 A EP 20704882A EP 3927976 C0 EP3927976 C0 EP 3927976C0
Authority
EP
European Patent Office
Prior art keywords
generated noise
reducing fan
fan
reducing
noise
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.)
Active
Application number
EP20704882.8A
Other languages
German (de)
French (fr)
Other versions
EP3927976B1 (en
EP3927976A1 (en
Inventor
Luca D'alessandro
Stefano Caverni
Giovanni Capellari
Sebastiano Conti
Francesco Mori
Simone Meduri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Phononic Vibes Srl
Phononic Vibes Srl
Original Assignee
Phononic Vibes Srl
Phononic Vibes Srl
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 Phononic Vibes Srl, Phononic Vibes Srl filed Critical Phononic Vibes Srl
Publication of EP3927976A1 publication Critical patent/EP3927976A1/en
Application granted granted Critical
Publication of EP3927976B1 publication Critical patent/EP3927976B1/en
Publication of EP3927976C0 publication Critical patent/EP3927976C0/en
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
    • 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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • 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
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Cookers (AREA)
EP20704882.8A 2019-02-19 2020-02-17 Device for reducing fan-generated noise Active EP3927976B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102019000002403A IT201900002403A1 (en) 2019-02-19 2019-02-19 Device to reduce the noise generated by a fan
PCT/EP2020/054014 WO2020169498A1 (en) 2019-02-19 2020-02-17 Device for reducing fan-generated noise

Publications (3)

Publication Number Publication Date
EP3927976A1 EP3927976A1 (en) 2021-12-29
EP3927976B1 EP3927976B1 (en) 2024-04-24
EP3927976C0 true EP3927976C0 (en) 2024-04-24

Family

ID=66589768

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20704882.8A Active EP3927976B1 (en) 2019-02-19 2020-02-17 Device for reducing fan-generated noise

Country Status (3)

Country Link
EP (1) EP3927976B1 (en)
IT (1) IT201900002403A1 (en)
WO (1) WO2020169498A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018146489A1 (en) 2017-02-09 2018-08-16 The University Of Sussex Acoustic wave manipulation by means of a time delay array

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3831263B2 (en) * 2002-01-21 2006-10-11 独立行政法人科学技術振興機構 Duct silencer
EP1720153A1 (en) * 2004-02-13 2006-11-08 Japan Science and Technology Agency Silencer for passage
WO2009152420A2 (en) 2008-06-13 2009-12-17 The Penn State Research Foundation Dipole flow driven resonators for fan noise mitigation
EP2690365B1 (en) * 2011-03-22 2015-12-30 Mitsubishi Heavy Industries, Ltd. Acoustic damper, combustor, and gas turbine
US9157362B2 (en) 2012-05-23 2015-10-13 Denso International America, Inc. Pressure release slot for fan noise improvement
US10087954B2 (en) 2013-02-08 2018-10-02 Trane International Inc. HVAC system with noise reducing tube

Also Published As

Publication number Publication date
EP3927976B1 (en) 2024-04-24
WO2020169498A1 (en) 2020-08-27
IT201900002403A1 (en) 2020-08-19
EP3927976A1 (en) 2021-12-29

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