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특허 상세정보

System and method for cooling a compressor motor

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F04B-039/02   
미국특허분류(USC) 417/368; 417/371; 417/366; 062/505
출원번호 US-0679220 (2007-02-27)
등록번호 US8021127 (2011-09-06)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    McNees Wallace & Nurick LLC
인용정보 피인용 횟수 : 6  인용 특허 : 14
초록

Apparatus and methods are provided for cooling motors used to drive gas and air compressors. In particular, the cooling of hermetic and semi-hermetic motors is accomplished by a gas sweep using a gas source located in the low-pressure side of a gas compression circuit. The gas sweep is provided by the creation of a pressure reduction at the compressor inlet sufficient to draw uncompressed gas through a motor housing, across the motor, and out of the housing for return to the suction assembly. The pressure reduction is created by structure in the suction ...

대표
청구항

The invention claimed is: 1. A gas compression system comprising:a compressor having a compressing mechanism, an inlet and an outlet;a motor connected to the compressor to drive the compressing mechanism;a housing enclosing the compressor and the motor, the housing having a gas inlet and a gas outlet; anda suction assembly for receiving uncompressed gas from a gas source and conveying the uncompressed gas to the compressor, the suction assembly comprising:a suction pipe in fluid communication with the gas source;a nozzle having a nozzle inlet to receive ...

이 특허에 인용된 특허 (14)

  1. Tsuboe, Hiroaki; Nakayama, Susumu; Saruta, Akira; Urata, Kazumoto. Air-conditioner, outdoor unit and refrigeration unit. USP2003016505480.
  2. Verechtchagin Mikhail Petrovich RU; Verechtchagin Maxim Mikhailovich RU; Kolontchine Victor Semenovich RU. Centrifugal compressor assembly for a refrigerating system. USP2002096450781.
  3. Sang Wook Hong KR; Ho Seon Rew KR. Compressor. USP2002066402485.
  4. Tischer James C. (La Crescent MN) Larson James W. (La Crosse WI). Compressor motor housing as an economizer and motor cooler in a refrigeration system. USP1986034573324.
  5. Tischer James C. ; Dorman Dennis R.. Liquid chiller with enhanced motor cooling and lubrication. USP2000056065297.
  6. Erth Richard A. (York PA). Liquid cooling system for hermetically sealed electric motor. USP1980014182137.
  7. Voss Mark G. (Brighton MI) Harvey William O. (Cadillac MI). Low capacity centrifugal refrigeration compressor. USP1994095350039.
  8. Beckey Thomas J. (Edina MN) Nelson Lorne W. (Bloomington MN). Method and apparatus for improving cooling of a compressor element in an air conditioning system. USP1989114878355.
  9. Heinrichs Anton D. ; Grant Stanley R.. Motor cooling in a refrigeration system. USP2000036032472.
  10. Choi Moon-Chang,KRX ; Kim Hyeong-Seok,KRX ; Lee Sang-Wook,KRX. Motor cooling structure for turbo. USP2000016009722.
  11. Hill, M. Raymond; Grbic, Milovan R.. Multi-stage centrifugal compressor driven by integral high speed motor. USP2003066579078.
  12. Akihiro Kawada JP. Multistage compression refrigerating machine for supplying refrigerant from subcooler to cool rotating machine and lubricating oil. USP2002106460371.
  13. Tojo Kenji (Ibaraki JPX) Kousokabe Hirokatu (Yokohama JPX) Arai Nobukatsu (Ushikumachi JPX) Sato Eiji (Shimoinayoshi JPX). Scroll compressor with means for end plate bias and cooled gas return to sealed compressor spaces. USP1980084216661.
  14. de Larminat,Paul Marie. System and method for cooling a compressor motor. USP2007027181928.