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특허 상세정보

High capacity chiller compressor

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) F25B-031/00   
미국특허분류(USC) 062/505; 062/402; 062/209; 417/042; 417/372
출원번호 US-0868341 (2007-10-05)
등록번호 US-8156757 (2012-04-17)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Patterson Thuente Christensen Pedersen, P.A.
인용정보 피인용 횟수 : 11  인용 특허 : 58
초록

A high efficiency, low maintenance single stage or multi-stage centrifugal compressor assembly for large cooling installations. The assembly is highly efficient by virtue of a variable frequency drive (VFD) that drives a permanent magnet motor and matches compressor speed with compressor load, a direct drive impeller that eliminates gearing losses, and magnetic bearings that reduce frictional losses. The back-emf produced by the motor provides an intermediate power source for the magnetic bearings in the event of a loss of electrical power. A cooling sys...

대표
청구항

1. A chiller system comprising: a compressor assembly including a permanent magnet motor and an aerodynamic section, said permanent magnet motor including a rotor assembly operatively coupled with a motor shaft and a stator assembly to produce rotation of said motor shaft, said motor shaft being operatively coupled with at least two magnetic bearings and being rotatable about a rotational axis, said motor shaft and said aerodynamic section being arranged for direct drive of said aerodynamic section, wherein said motor shaft further comprises at least one...

이 특허에 인용된 특허 (58)

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