Cooling system and method

Details Cooling system and method Cooling system and method

2006-11-22

2010-02-09

Norman, Marc E (Department: 3744)

Refrigeration

Automatic control

Of external fluid or means

C062S183000, C062S196300, C062S228100, C062SDIG022

Reexamination Certificate

active

07658079

ABSTRACT:
The present invention related to cooling systems. More specifically, the present invention relates to a system for cooling one or more parts of a building and or processes comprising a compressor, a condenser having an inlet and an outlet and a plurality of condenser cooling fans, a receiver, a liquid refrigerant pump, an expansion device, an evaporator, the evaporator being surrounded by a chiller barrel having a cooled water return and a chilled water supply line, and refrigerant line means interconnecting the compressor, condenser, expansion device and evaporator in series, in a closed loop for circulating refrigerant therethrough; means for switching the cooling system between free cooling and mechanical cooling and means for actively floating the head pressure in both mechanical and free cooling modes.

REFERENCES:
patent: 3815378 (1974-06-01), Hoenisch
patent: 5168715 (1992-12-01), Nakao et al.
patent: 6023935 (2000-02-01), Okazaki et al.
patent: 6871509 (2005-03-01), Grabon et al.
patent: 7003968 (2006-02-01), Ben Yahia

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