GB1321261A - Fan impeller blades - Google Patents

Fan impeller blades

Info

Publication number
GB1321261A
GB1321261A GB1321261DA GB1321261A GB 1321261 A GB1321261 A GB 1321261A GB 1321261D A GB1321261D A GB 1321261DA GB 1321261 A GB1321261 A GB 1321261A
Authority
GB
United Kingdom
Prior art keywords
impeller
spigot
shaped
lugs
jan
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
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.)
Woods of Colchester Ltd
Original Assignee
Woods of Colchester 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 Woods of Colchester Ltd filed Critical Woods of Colchester Ltd
Publication of GB1321261A publication Critical patent/GB1321261A/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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/34—Blade mountings

Landscapes

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

Abstract

1321261 Axial-flow fans WOODS OF COLCHESTER Ltd 13 Jan 1971 [20 Jan 1970] 2805/70 Heading F1C A fan blade, e.g. of plastics or metal sheet, has a cambered main portion and has a root portion having adjacent the trailing edge 6, Fig. 4 a sector-shaped bug 5 which has a protuding portion 9 having a sloping surface 10 which extends the camber of the blade into the root portion. The portion 9 is substantially V-shaped in cross-section, Fig. 5 (not shown). Several blades may each be secured to a central disc or annular to form an impeller. Alternatively, an additional sector-shaped lug 7 may be provided adjacent the leading edge 8, and several such blades may be spot welded or rivetted together as shown to form an impeller. The lugs 7 define a central opening 19 by which the impeller is mounted on a spigot portion of a hub 20. The spigot portion is thereafter deformed to form a radially-extending retaining flange (21), Fig. 7 (not shown), and to cause the spigot material to flow into notches 15 formed in the lugs 7. The impeller may be provided with a central fairing (25) attached to the hub.
GB1321261D 1970-01-20 1970-01-20 Fan impeller blades Expired GB1321261A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB280570 1970-01-20

Publications (1)

Publication Number Publication Date
GB1321261A true GB1321261A (en) 1973-06-27

Family

ID=9746258

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1321261D Expired GB1321261A (en) 1970-01-20 1970-01-20 Fan impeller blades

Country Status (1)

Country Link
GB (1) GB1321261A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046488A (en) * 1975-11-07 1977-09-06 Wickham Robert G Radiator cooling fan
WO2011051880A3 (en) * 2009-10-26 2011-06-23 Spal Automotive S.R.L. Axial ventilator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046488A (en) * 1975-11-07 1977-09-06 Wickham Robert G Radiator cooling fan
WO2011051880A3 (en) * 2009-10-26 2011-06-23 Spal Automotive S.R.L. Axial ventilator
CN102597531A (en) * 2009-10-26 2012-07-18 斯佩尔汽车有限公司 Axial ventilator
JP2013508608A (en) * 2009-10-26 2013-03-07 スパル オートモーティブ ソチエタ レスポンサビリタ リミテ Axial ventilator
US8985970B2 (en) 2009-10-26 2015-03-24 Spal Automotive S.R.L. Axial ventilator
RU2546894C2 (en) * 2009-10-26 2015-04-10 Спал Аутомотиве С.Р.Л. Axial fan
CN102597531B (en) * 2009-10-26 2015-10-14 斯佩尔汽车有限公司 Axial ventilator

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees