Refrigeration – Automatic control – Refrigeration producer
Reexamination Certificate
2008-01-25
2011-11-08
Norman, Marc (Department: 3744)
Refrigeration
Automatic control
Refrigeration producer
C062SDIG022
Reexamination Certificate
active
08051669
ABSTRACT:
In an apparatus comprising: an evaporator1for boiling and evaporating a cold/heat evaporable liquid under a reduced pressure; a condenser2for condensing vapor; a cold/heat indirect heat exchanger6at a load14side; a cooling heat exchanger11using the air; cold-heat circulation means5and7for circulating a cold/heat evaporable liquid in the evaporator to the cold/heat indirect heat exchanger; cooling circulation means10and12for circulating a cooling evaporable liquid in the condenser to the cooling heat exchanger; and a vapor compressor20provided in a vapor duct19extending from the evaporator to the condenser, a running cost is reduced when a temperature at the condenser side becomes lower than a temperature at the evaporator side due to a drop in air temperature, without a rise in a temperature of the cold/heat evaporable liquid. The vapor duct19is provided with a bypass vapor path22for bypassing the vapor compressor. The bypass vapor path is provided with an on-off valve23. When a temperature at the condenser side becomes lower than a temperature at the evaporator side, the vapor compressor is shut down and the on-off valve is opened.
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Hayase Hiroaki
Imai Masaaki
Inoue Yoshinori
Jordan and Hamburg LLP
Norman Marc
Sasakura Engineering Co. Ltd.
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