IT1049003B - Anello per la prevenzione di rumori in ventilatori propellenti - Google Patents

Anello per la prevenzione di rumori in ventilatori propellenti

Info

Publication number
IT1049003B
IT1049003B IT28749/75A IT2874975A IT1049003B IT 1049003 B IT1049003 B IT 1049003B IT 28749/75 A IT28749/75 A IT 28749/75A IT 2874975 A IT2874975 A IT 2874975A IT 1049003 B IT1049003 B IT 1049003B
Authority
IT
Italy
Prior art keywords
prevention
noise
ring
propelling
fans
Prior art date
Application number
IT28749/75A
Other languages
English (en)
Original Assignee
Sasakura Eng 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 Eng Co Ltd filed Critical Sasakura Eng Co Ltd
Application granted granted Critical
Publication of IT1049003B publication Critical patent/IT1049003B/it

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)
IT28749/75A 1974-11-05 1975-10-28 Anello per la prevenzione di rumori in ventilatori propellenti IT1049003B (it)

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
IT1049003B true IT1049003B (it) 1981-01-20

Family

ID=14969076

Family Applications (1)

Application Number Title Priority Date Filing Date
IT28749/75A IT1049003B (it) 1974-11-05 1975-10-28 Anello per la prevenzione di rumori in ventilatori propellenti

Country Status (7)

Country Link
JP (1) JPS5153606A (it)
BR (1) BR7507271A (it)
DE (1) DE2548999B2 (it)
FR (1) FR2290589A1 (it)
GB (1) GB1514584A (it)
IT (1) IT1049003B (it)
NL (1) NL7512418A (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380106U (it) * 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
GB2330624A (en) * 1997-10-23 1999-04-28 Wang Samw Hong Jen Fan device with noise reduction
RU2148732C1 (ru) * 1998-05-05 2000-05-10 Открытое акционерное общество Самарский научно-технический комплекс им. Н.Д. Кузнецова Ступень турбомашины
NL1034926C2 (nl) * 2008-01-18 2009-07-21 Holland Conditioning Parkeersystemen Bv Ventilatorinrichting met ophanging aan motor.
IT1403249B1 (it) * 2010-11-19 2013-10-17 Luve Spa Dispositivo silenziatore, particolarmente per i ventilatori di aero-scambiatori e simili.
CN104454587B (zh) * 2014-11-12 2017-02-08 华为技术有限公司 一种风扇
GB201707836D0 (en) * 2017-05-16 2017-06-28 Oscar Propulsion Ltd Outlet guide vanes

Also Published As

Publication number Publication date
FR2290589A1 (fr) 1976-06-04
NL7512418A (nl) 1976-05-07
BR7507271A (pt) 1976-08-03
FR2290589B3 (it) 1979-09-21
JPS5153606A (en) 1976-05-12
DE2548999A1 (de) 1976-05-13
DE2548999B2 (de) 1978-12-14
GB1514584A (en) 1978-06-14

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