GB1529946A - Silencers for centrifugal blowers - Google Patents

Silencers for centrifugal blowers

Info

Publication number
GB1529946A
GB1529946A GB1061275A GB1061275A GB1529946A GB 1529946 A GB1529946 A GB 1529946A GB 1061275 A GB1061275 A GB 1061275A GB 1061275 A GB1061275 A GB 1061275A GB 1529946 A GB1529946 A GB 1529946A
Authority
GB
United Kingdom
Prior art keywords
fan
channel
march
absorbing material
silencers
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
GB1061275A
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.)
Fans & Blowers Ltd
Original Assignee
Fans & Blowers 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 Fans & Blowers Ltd filed Critical Fans & Blowers Ltd
Priority to GB1061275A priority Critical patent/GB1529946A/en
Publication of GB1529946A publication Critical patent/GB1529946A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1288—Intake silencers ; Sound modulation, transmission or amplification combined with or integrated into other devices ; Plurality of air intake silencers
    • 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)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1529946 Fan intake silencer FANS & BLOWERS Ltd 3 March 1976 [13 March 1975] 10612/75 Heading F1B A centrifugal fan has an intake silencer comprising a channel or tubular member 22, preferably open at both ends 30, and having at least one wall of a passage defined by the channel or tubular passage covered with sound absorbing material 36 e.g. polyurethane foam. The channel or tubular member 22 covers an intake port 20 of the fan. The member sidewalls may also be covered with sound absorbing material as may be the fan housing wall 14 defining the intake port 20. To prevent ingress of dirt a wire mesh 34 may cover each inlet 30.
GB1061275A 1976-03-03 1976-03-03 Silencers for centrifugal blowers Expired GB1529946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1061275A GB1529946A (en) 1976-03-03 1976-03-03 Silencers for centrifugal blowers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1061275A GB1529946A (en) 1976-03-03 1976-03-03 Silencers for centrifugal blowers

Publications (1)

Publication Number Publication Date
GB1529946A true GB1529946A (en) 1978-10-25

Family

ID=9971084

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1061275A Expired GB1529946A (en) 1976-03-03 1976-03-03 Silencers for centrifugal blowers

Country Status (1)

Country Link
GB (1) GB1529946A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457399A1 (en) * 1979-05-23 1980-12-19 Citroen Sa Silencer for axial suction fan with radial feed pipe - has exponentially decreasing cross=section and is inclined to perpendicular to shaft to impart spiral trajectory on intake air
FR2627551A1 (en) * 1988-02-24 1989-08-25 Cherrier Gerard Air suction silencer - is open-ended rectangular box lined with sound absorbent material, with hole in one wall connected to turbine blower suction inlet
CN106015110A (en) * 2016-05-10 2016-10-12 中国能源建设集团广东省电力设计研究院有限公司 Noise absorption and isolation device and silencing method thereof
US11035384B2 (en) * 2018-04-25 2021-06-15 Sonny's Enterprises, Llc Silencer for an air blower assembly and air blower assembly having the silencer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2457399A1 (en) * 1979-05-23 1980-12-19 Citroen Sa Silencer for axial suction fan with radial feed pipe - has exponentially decreasing cross=section and is inclined to perpendicular to shaft to impart spiral trajectory on intake air
FR2627551A1 (en) * 1988-02-24 1989-08-25 Cherrier Gerard Air suction silencer - is open-ended rectangular box lined with sound absorbent material, with hole in one wall connected to turbine blower suction inlet
CN106015110A (en) * 2016-05-10 2016-10-12 中国能源建设集团广东省电力设计研究院有限公司 Noise absorption and isolation device and silencing method thereof
US11035384B2 (en) * 2018-04-25 2021-06-15 Sonny's Enterprises, Llc Silencer for an air blower assembly and air blower assembly having the silencer

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950303