GB706170A - Improvements relating to electric motors - Google Patents

Improvements relating to electric motors

Info

Publication number
GB706170A
GB706170A GB32321/52A GB3232152A GB706170A GB 706170 A GB706170 A GB 706170A GB 32321/52 A GB32321/52 A GB 32321/52A GB 3232152 A GB3232152 A GB 3232152A GB 706170 A GB706170 A GB 706170A
Authority
GB
United Kingdom
Prior art keywords
blades
fan
stage
cooling
stator
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
GB32321/52A
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.)
Hoover Ltd
Original Assignee
Hoover 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 Hoover Ltd filed Critical Hoover Ltd
Publication of GB706170A publication Critical patent/GB706170A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Abstract

706,170. Cooling dynamo-electric machines. HOOVER, Ltd. Dec. 19, 1952 [Jan. 2, 1952]. No. 32321/52. Class 35 A motor carries on its shaft 12 its own cooling fan comprising a 2-stage centrifugal fan having a fixed ring 40 secured to the end bell 2 and so arranged to divert the air flow outwardly from the blades 26 of the first stage fan disc 25 and redirecting it inwardly to the blades 35 of the second fan stage, the ring 40 being located entirely outside the periphery of the rotating parts. The cooling air is admitted through openings 21 after which the air flows partly via longitudinal holes 22 extending through the squirrel cage rotor 20 and partly between the frame central portion 3 and the outer perephery of the stator 7 through spaces between inwardly extending lugs 6 supporting the stator. The blades 26, 35 of the two discs have annular shroud bridges 27, 36 respectively near the edges of the blades.
GB32321/52A 1952-01-02 1952-12-19 Improvements relating to electric motors Expired GB706170A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US706170XA 1952-01-02 1952-01-02

Publications (1)

Publication Number Publication Date
GB706170A true GB706170A (en) 1954-03-24

Family

ID=22096388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32321/52A Expired GB706170A (en) 1952-01-02 1952-12-19 Improvements relating to electric motors

Country Status (1)

Country Link
GB (1) GB706170A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196486A (en) * 1986-08-25 1988-04-27 Kubota Ltd Forcedly air-cooled engine generator of vertical shaft type
EP0656679A1 (en) * 1993-12-03 1995-06-07 L.N. di NATALINI LINO & C. - S.r.l. Small electric motor, cooled by air flowing through the rotor
US5507619A (en) * 1994-03-10 1996-04-16 Hunter Fan Company Water resistant ceiling fan
EP2088465A1 (en) * 2008-02-07 2009-08-12 Canon Kabushiki Kaisha Electric cooling apparatus with centrifugal fan

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2196486A (en) * 1986-08-25 1988-04-27 Kubota Ltd Forcedly air-cooled engine generator of vertical shaft type
GB2196486B (en) * 1986-08-25 1990-06-06 Kubota Ltd Forcedly air-cooled engine generator of vertical shaft-type
EP0656679A1 (en) * 1993-12-03 1995-06-07 L.N. di NATALINI LINO & C. - S.r.l. Small electric motor, cooled by air flowing through the rotor
US5507619A (en) * 1994-03-10 1996-04-16 Hunter Fan Company Water resistant ceiling fan
EP2088465A1 (en) * 2008-02-07 2009-08-12 Canon Kabushiki Kaisha Electric cooling apparatus with centrifugal fan
US8388141B2 (en) 2008-02-07 2013-03-05 Canon Kabushiki Kaisha Electric apparatus

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