BR7507271A - Aro preventivo de ruido para ventiladores a pas propulsoras - Google Patents

Aro preventivo de ruido para ventiladores a pas propulsoras

Info

Publication number
BR7507271A
BR7507271A BR7507271*A BR7507271A BR7507271A BR 7507271 A BR7507271 A BR 7507271A BR 7507271 A BR7507271 A BR 7507271A BR 7507271 A BR7507271 A BR 7507271A
Authority
BR
Brazil
Prior art keywords
spill
fans
rim
fan
noise preventive
Prior art date
Application number
BR7507271*A
Other languages
English (en)
Portuguese (pt)
Inventor
K Minami
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
Publication of BR7507271A publication Critical patent/BR7507271A/pt

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)
BR7507271*A 1974-11-05 1975-11-04 Aro preventivo de ruido para ventiladores a pas propulsoras BR7507271A (pt)

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
BR7507271A true BR7507271A (pt) 1976-08-03

Family

ID=14969076

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7507271*A BR7507271A (pt) 1974-11-05 1975-11-04 Aro preventivo de ruido para ventiladores a pas propulsoras

Country Status (7)

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

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380106U (fr) * 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
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
DE2548999B2 (de) 1978-12-14
GB1514584A (en) 1978-06-14
NL7512418A (nl) 1976-05-07
JPS5153606A (en) 1976-05-12
IT1049003B (it) 1981-01-20
FR2290589A1 (fr) 1976-06-04
DE2548999A1 (de) 1976-05-13
FR2290589B3 (fr) 1979-09-21

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