GB870808A - Electric motors - Google Patents

Electric motors

Info

Publication number
GB870808A
GB870808A GB4774/58A GB477458A GB870808A GB 870808 A GB870808 A GB 870808A GB 4774/58 A GB4774/58 A GB 4774/58A GB 477458 A GB477458 A GB 477458A GB 870808 A GB870808 A GB 870808A
Authority
GB
United Kingdom
Prior art keywords
motor
compressor
feb
gap
passes
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
GB4774/58A
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.)
Garrett Corp
Original Assignee
Garrett Corp
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 Garrett Corp filed Critical Garrett Corp
Publication of GB870808A publication Critical patent/GB870808A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Motor Or Generator Frames (AREA)
  • Lubricants (AREA)

Abstract

870,808. Cooling electric motors. GARRETT CORPORATION. Feb. 13, 1958 [Feb. 14, 1957], No. 4774/58. Class 35. [Also in Group XXVI] In a refrigerator motor-compressor unit, the motor is cooled and lubricated by means of a combined refrigerating and lubricating fluid, a small amount of which is bled off from the main circuit into the hollow rotor shaft, from whence it escapes through small radial orifices and returns through the motor air-gap. The refrigerant may be dichlorotetrafluorethane (Registered Trade Mark " Freon 114 ") containing 1.0-0.1% lubricating oil. Refrigerant used for cooling the motor is drawn from a supply tube 81, passes through a porous bronze filter 75, and then up through a metering orifice 72 into the hollow rotor shaft 36. It then passes into the motor body through holes 83, 84 adjacent the bearings. That emerging from the upper holes 84 cools the stator in passing axially down through the air-gap and slot mouths. The spent coolant is returned by duct 95 to the inlet 26 of the compressor. The compressor comprises two rotor stages 13, 14 sealed respectively by labyrinths 32, 35, and is isolated from the motor body by a seal 55.
GB4774/58A 1957-02-14 1958-02-13 Electric motors Expired GB870808A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US870808XA 1957-02-14 1957-02-14

Publications (1)

Publication Number Publication Date
GB870808A true GB870808A (en) 1961-06-21

Family

ID=22203005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4774/58A Expired GB870808A (en) 1957-02-14 1958-02-13 Electric motors

Country Status (1)

Country Link
GB (1) GB870808A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9689281B2 (en) 2011-12-22 2017-06-27 Nanjing Tica Air-Conditioning Co., Ltd. Hermetic motor cooling for high temperature organic Rankine cycle system
CN112112833A (en) * 2019-06-21 2020-12-22 丹佛斯公司 Partial hollow shaft for heating, ventilating and air conditioning

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9689281B2 (en) 2011-12-22 2017-06-27 Nanjing Tica Air-Conditioning Co., Ltd. Hermetic motor cooling for high temperature organic Rankine cycle system
CN112112833A (en) * 2019-06-21 2020-12-22 丹佛斯公司 Partial hollow shaft for heating, ventilating and air conditioning

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