|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F25B-049/02 H05K-007/20 F25B-023/00 F25B-041/04|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 1 인용 특허 : 35|
A cooling system has a direct expansion mode and a pumped refrigerant economizer mode and a controller. The controller includes a load estimator that estimates real-time indoor load on the cooling system and uses the estimated real-time indoor load to determine whether to operate the cooling system in the pumped refrigerant economizer mode or in the direct expansion mode.
1. A cooling system, comprising: a cabinet having an air inlet and an air outlet;a first cooling circuit that includes an evaporator disposed in the cabinet, a condenser, a compressor, an expansion device and a liquid pump;the cooling system having a direct expansion mode wherein the compressor is on and compresses a refrigerant in a vapor phase to raise a pressure of the refrigerant and thus a condensing temperature of the refrigerant and the refrigerant is circulated around the first cooling circuit by the compressor and a pumped refrigerant economizer...