GB1514584A - Noise-preventive fan ring for axial flow fans - Google Patents

Noise-preventive fan ring for axial flow fans

Info

Publication number
GB1514584A
GB1514584A GB44185/75A GB4418575A GB1514584A GB 1514584 A GB1514584 A GB 1514584A GB 44185/75 A GB44185/75 A GB 44185/75A GB 4418575 A GB4418575 A GB 4418575A GB 1514584 A GB1514584 A GB 1514584A
Authority
GB
United Kingdom
Prior art keywords
noise
wool
flow fans
axial
axial flow
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.)
Expired
Application number
GB44185/75A
Other languages
English (en)
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.)
Sasakura Engineering Co Ltd
Original Assignee
Sasakura Engineering Co 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 Sasakura Engineering Co Ltd filed Critical Sasakura Engineering Co Ltd
Publication of GB1514584A publication Critical patent/GB1514584A/en
Expired legal-status Critical Current

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
    • F04D29/40—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
    • F04D29/66—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
    • F04D29/664—Sound attenuation by means of sound absorbing material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Exhaust Silencers (AREA)
GB44185/75A 1974-11-05 1975-10-27 Noise-preventive fan ring for axial flow fans Expired GB1514584A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49127804A JPS5153606A (en) 1974-11-05 1974-11-05 Puroperafuanno soonboshofuanringu

Publications (1)

Publication Number Publication Date
GB1514584A true GB1514584A (en) 1978-06-14

Family

ID=14969076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44185/75A Expired GB1514584A (en) 1974-11-05 1975-10-27 Noise-preventive fan ring for axial flow fans

Country Status (7)

Country Link
JP (1) JPS5153606A (cg-RX-API-DMAC7.html)
BR (1) BR7507271A (cg-RX-API-DMAC7.html)
DE (1) DE2548999B2 (cg-RX-API-DMAC7.html)
FR (1) FR2290589A1 (cg-RX-API-DMAC7.html)
GB (1) GB1514584A (cg-RX-API-DMAC7.html)
IT (1) IT1049003B (cg-RX-API-DMAC7.html)
NL (1) NL7512418A (cg-RX-API-DMAC7.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330624A (en) * 1997-10-23 1999-04-28 Wang Samw Hong Jen Fan device with noise reduction
NL1034926C2 (nl) * 2008-01-18 2009-07-21 Holland Conditioning Parkeersystemen Bv Ventilatorinrichting met ophanging aan motor.
ITMI20102143A1 (it) * 2010-11-19 2012-05-20 Luve Spa Dispositivo silenziatore, particolarmente per i ventilatori di aero-scambiatori e simili.
EP3020976A1 (en) * 2014-11-12 2016-05-18 Huawei Technologies Co., Ltd. Computer fan with noise reducing structured casing wall opposite to the blade tips

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380106U (cg-RX-API-DMAC7.html) * 1976-12-07 1978-07-04
ZA783845B (en) * 1977-07-13 1979-07-25 Carrier Corp Pressure variation absorber
FR2414649A1 (fr) * 1978-01-12 1979-08-10 Etri Sa Ventilateur axial a boitier polygonal plat, notamment carre
DE3927791A1 (de) * 1989-08-23 1991-02-28 Gebhardt Ventilatoren Axialventilator
RU2148732C1 (ru) * 1998-05-05 2000-05-10 Открытое акционерное общество Самарский научно-технический комплекс им. Н.Д. Кузнецова Ступень турбомашины
GB201707836D0 (en) * 2017-05-16 2017-06-28 Oscar Propulsion Ltd Outlet guide vanes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2330624A (en) * 1997-10-23 1999-04-28 Wang Samw Hong Jen Fan device with noise reduction
NL1034926C2 (nl) * 2008-01-18 2009-07-21 Holland Conditioning Parkeersystemen Bv Ventilatorinrichting met ophanging aan motor.
EP2080912A3 (en) * 2008-01-18 2011-12-07 Holland Conditioning Parkeersystemen B.V. Ventilating device
ITMI20102143A1 (it) * 2010-11-19 2012-05-20 Luve Spa Dispositivo silenziatore, particolarmente per i ventilatori di aero-scambiatori e simili.
EP2455619A1 (en) * 2010-11-19 2012-05-23 Lu-Ve S.P.A. Silencer device for air exchanger fans
EP3020976A1 (en) * 2014-11-12 2016-05-18 Huawei Technologies Co., Ltd. Computer fan with noise reducing structured casing wall opposite to the blade tips
US10161420B2 (en) 2014-11-12 2018-12-25 Huawei Technologies Co., Ltd. Fan

Also Published As

Publication number Publication date
BR7507271A (pt) 1976-08-03
NL7512418A (nl) 1976-05-07
JPS5153606A (en) 1976-05-12
DE2548999B2 (de) 1978-12-14
FR2290589B3 (cg-RX-API-DMAC7.html) 1979-09-21
FR2290589A1 (fr) 1976-06-04
IT1049003B (it) 1981-01-20
DE2548999A1 (de) 1976-05-13

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Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
SP Amendment (slips) printed
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee