GB1007068A - Improvements relating to centrifugal fans - Google Patents

Improvements relating to centrifugal fans

Info

Publication number
GB1007068A
GB1007068A GB42510/63A GB4251063A GB1007068A GB 1007068 A GB1007068 A GB 1007068A GB 42510/63 A GB42510/63 A GB 42510/63A GB 4251063 A GB4251063 A GB 4251063A GB 1007068 A GB1007068 A GB 1007068A
Authority
GB
United Kingdom
Prior art keywords
zig
fan
zag
centrifugal fans
scroll
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
GB42510/63A
Inventor
Peter Baverstock
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.)
Brightside Heating and Engineering Co Ltd
Original Assignee
Brightside Heating and 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 Brightside Heating and Engineering Co Ltd filed Critical Brightside Heating and Engineering Co Ltd
Priority to GB42510/63A priority Critical patent/GB1007068A/en
Priority to US400843A priority patent/US3286914A/en
Publication of GB1007068A publication Critical patent/GB1007068A/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
    • F04D29/66—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
    • F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
    • 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
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

1,007,068. Centrifugal fans; silencers for gaseous currents. BRIGHTSIDE HEATING & ENGINEERING CO. Ltd. Sept. 7, 1964 [Oct. 29, 1963], No. 42510/63. Headings F1B and F1C. The centrifugal fan described in Specification 926,088 is modified by making the perforated scroll 13 of sinuous, corrugated or other non- planar form in the direction parallel to the impeller axis. This reduces turbulent air flow in directions other than that induced by the fan and hence avoids vibration and resonance in the fan casing 12. In the fan shown, the scroll 13 is of zig-zag or saw-tooth section, the angle 14 of the individual parts of the zig-zags with respect to the impeller axis being at least 45 degrees. Each zig-zag is at least ¢ inch in height.
GB42510/63A 1963-10-29 1963-10-29 Improvements relating to centrifugal fans Expired GB1007068A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB42510/63A GB1007068A (en) 1963-10-29 1963-10-29 Improvements relating to centrifugal fans
US400843A US3286914A (en) 1963-10-29 1964-10-01 Fans

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB42510/63A GB1007068A (en) 1963-10-29 1963-10-29 Improvements relating to centrifugal fans

Publications (1)

Publication Number Publication Date
GB1007068A true GB1007068A (en) 1965-10-13

Family

ID=10424754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42510/63A Expired GB1007068A (en) 1963-10-29 1963-10-29 Improvements relating to centrifugal fans

Country Status (2)

Country Link
US (1) US3286914A (en)
GB (1) GB1007068A (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3459365A (en) * 1967-12-01 1969-08-05 Torrington Mfg Co Transverse flow blower unit having cavity with restricted opening adjacent cut-off section
US3526292A (en) * 1969-06-11 1970-09-01 Bofors Ab Device for damping acoustic vibrations generated by the rotation of a prismatic body within a drum
US4411592A (en) * 1977-07-13 1983-10-25 Carrier Corporation Pressure variation absorber
ZA783845B (en) * 1977-07-13 1979-07-25 Carrier Corp Pressure variation absorber
US4504188A (en) * 1979-02-23 1985-03-12 Carrier Corporation Pressure variation absorber
US4482294A (en) * 1979-05-11 1984-11-13 C. K. Kelley & Sons, Inc. Power unit for single line pneumatic tube system
DE3200210C2 (en) * 1982-01-07 1986-04-17 Heinz Georg Hünibach Thun Baus Ventilation device
US6375416B1 (en) 1993-07-15 2002-04-23 Kevin J. Farrell Technique for reducing acoustic radiation in turbomachinery
US5484259A (en) * 1994-06-13 1996-01-16 Emerson Electric Co. Low noise centrifugal blower
US5868551A (en) * 1997-05-02 1999-02-09 American Standard Inc. Tangential fan cutoff
WO2006026295A2 (en) * 2004-08-26 2006-03-09 Twin City Fan Companies, Ltd. Plenum/plug fan assembly
US20060054712A1 (en) * 2004-09-13 2006-03-16 Guolian Wu Vertical dehumidifier
TWI267584B (en) * 2004-11-05 2006-12-01 Quanta Comp Inc Centrifugal fan
KR101271065B1 (en) * 2007-12-06 2013-06-05 삼성전자주식회사 Blower and air conditioner having the same
US8231331B2 (en) * 2008-03-14 2012-07-31 Wayne State University Reduction of flow-induced noise in a centrifugal blower
US8678131B2 (en) * 2012-03-30 2014-03-25 Textron Innovations Inc. Acoustic baffle for centrifugal blowers
US20130260664A1 (en) * 2012-03-30 2013-10-03 Rockwell Automation Technologies, Inc. Eccentric fan housing
DE102014206114A1 (en) * 2014-04-01 2015-10-01 Mahle International Gmbh Housing of a radial fan
CN104196740A (en) * 2014-08-28 2014-12-10 山西潞安环保能源开发股份有限公司 Mine counter-rotating type local ventilator
CN105864064A (en) * 2015-01-21 2016-08-17 联想(北京)有限公司 Centrifugal fan and electronic product comprising same
US10415601B2 (en) * 2017-07-07 2019-09-17 Denso International America, Inc. Blower noise suppressor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1233115A (en) * 1916-04-08 1917-07-10 Clarence N Mack Centrifugal conveyer-fan.
US2855142A (en) * 1955-12-22 1958-10-07 Harman J White Blower structure for a grain separator
GB926088A (en) * 1960-11-08 1963-05-15 Brightside Heating & Engineeri Improvements relating to centrifugal fans
DE1403496A1 (en) * 1961-07-01 1969-01-30 Daimler Benz Ag Cooling or hot air blower

Also Published As

Publication number Publication date
US3286914A (en) 1966-11-22

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