Centrifugal compressor for turbo chiller, turbo chiller, and...

Details Centrifugal compressor for turbo chiller, turbo chiller, and... Centrifugal compressor for turbo chiller, turbo chiller, and...

2007-11-13

2007-11-13

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Plural diverse condition responsive

C415S028000, C415S144000

Reexamination Certificate

active

11024875

ABSTRACT:
A turbo chiller that can accurately determine the existence of surging occurring in a centrifugal compressor is provided. In a centrifugal compressor of a turbo chiller, which includes an impeller for compressing refrigerant, a resistance temperature sensor for detecting the refrigerant temperature is provided at the upstream side of the impeller. Accordingly, a temperature rise caused by surging can be detected and the existence of surging can be accurately determined.

REFERENCES:
patent: 4749331 (1988-06-01), Blotenberg
patent: 5065590 (1991-11-01), Powell et al.
patent: 5335507 (1994-08-01), Powell
patent: 6213724 (2001-04-01), Haugen et al.
patent: 6981838 (2006-01-01), McKee et al.
patent: 8-233382 (1996-09-01), None
patent: 2000-505525 (2000-05-01), None
patent: WO97/38270 (1997-10-01), None

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