Refrigeration – Automatic control – Refrigeration producer
Patent
1997-12-23
1999-06-01
Tanner, Harry B.
Refrigeration
Automatic control
Refrigeration producer
62181, 62DIG17, F25B 4104
Patent
active
059079576
ABSTRACT:
A compressor discharge pressure control system employed on a container refrigeration unit utilizes a pressure transducer located in the high pressure side of the system and a data processor to control and limit the compressor discharge pressure to a maximum value when the normal condenser pressure controls are inactive. The pressure control system operates the suction modulation valve in a manner that significantly reduces compressor cycling and increases refrigeration system capacity during pull-down periods. The pressure control system also operates during water-cooled operation of a refrigeration system having a water-cooled condenser thereby eliminating the need to provide a water pressure switch in the refrigeration system.
REFERENCES:
patent: 4646964 (1987-03-01), Parker et al.
patent: 5163301 (1992-11-01), Cahill-O'Brien et al.
patent: 5255529 (1993-10-01), Powell et al.
patent: 5259204 (1993-11-01), McKeown
patent: 5309727 (1994-05-01), Duff et al.
patent: 5369597 (1994-11-01), Bujak, Jr.
patent: 5454511 (1995-10-01), Van Ostrand
patent: 5539382 (1996-07-01), Duff et al.
patent: 5711161 (1998-01-01), Gustafson
Johnsen Martin O.
Lee Joseph H.
Carrier Corporation
Tanner Harry B.
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