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GB783733A - Improvements in flame-arrestors for dynamo-electric machines - Google Patents

Improvements in flame-arrestors for dynamo-electric machines

Info

Publication number
GB783733A
GB783733A GB22177/55A GB2217755A GB783733A GB 783733 A GB783733 A GB 783733A GB 22177/55 A GB22177/55 A GB 22177/55A GB 2217755 A GB2217755 A GB 2217755A GB 783733 A GB783733 A GB 783733A
Authority
GB
United Kingdom
Prior art keywords
indentations
flame
dynamo
cooling air
strip
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
GB22177/55A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB783733A publication Critical patent/GB783733A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

783,733. Flame arrestors for dynamo-electric machines. GENERAL ELECTRIC CO. Aug. 2, 1955 [Aug. 2, 1954], No. 22177/55. Class 47 [Also in Group XXXV ] A dynamo-electric machine is provided with a flame arrestor comprising a plurality of superimposed layers of highly conductive material maintained apart from one another by indentations in the material, the indentations being of a form unable to completely nest in one another. In one arrangement two flame arrestors 31, Fig. 3 are provided, each located in an annular passage, one adjacent the cooling air inlet and the other adjacent the cooling air outlet of the machine, and each comprising a strip of material having regularly spaced U-shaped indentations 33 extending across the width of the material, the strip being wound upon itself in spiral form. The shape of the indentations 33 is such that when two indentations are superimposed one upon another as at 38, they will not nest together. In a modification wherein the cooling air is adapted to pass radially, each flame arrestor may be formed from a plurality of superimposed annular strip 39, Figs. 5 and 6.
GB22177/55A 1954-08-02 1955-08-02 Improvements in flame-arrestors for dynamo-electric machines Expired GB783733A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US783733XA 1954-08-02 1954-08-02

Publications (1)

Publication Number Publication Date
GB783733A true GB783733A (en) 1957-09-25

Family

ID=22143627

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22177/55A Expired GB783733A (en) 1954-08-02 1955-08-02 Improvements in flame-arrestors for dynamo-electric machines

Country Status (1)

Country Link
GB (1) GB783733A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556589A1 (en) * 1992-02-15 1993-08-25 Pierburg Gmbh Universal electromotor
US6481050B1 (en) 2000-07-19 2002-11-19 The Hoover Company Motor-fan cooling air directed into filter bag
DE19719777B4 (en) * 1996-05-31 2007-09-27 Société Nationale d'Etude et de Construction de Moteurs d'Aviation Device for limiting the risk of fire inside a turbomachine
US8533906B2 (en) 2011-07-07 2013-09-17 Shop Vac Corporation Vacuum cleaner with recirculated cooling air

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0556589A1 (en) * 1992-02-15 1993-08-25 Pierburg Gmbh Universal electromotor
DE19719777B4 (en) * 1996-05-31 2007-09-27 Société Nationale d'Etude et de Construction de Moteurs d'Aviation Device for limiting the risk of fire inside a turbomachine
US6481050B1 (en) 2000-07-19 2002-11-19 The Hoover Company Motor-fan cooling air directed into filter bag
US8533906B2 (en) 2011-07-07 2013-09-17 Shop Vac Corporation Vacuum cleaner with recirculated cooling air

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