Refrigeration cycle.

申请公布号：

EP0586193(A1)

申请号：

EP19930306768

申请日期：

1993.08.26

申请公布日期：

1994.03.09

申请人：

HITACHI, LTD.

发明人：

OGUNI, KENSAKU;URATA, KAZUMOTO;MATSUSHIMA, HIROAKI

分类号：

F25B9/00;F25B1/00;F25B13/00;F25B49/02;(IPC1-7):F25B49/02

主分类号：

F25B9/00

摘要：

<p>The composition of a refrigerant in a refrigeration cycle is detected, so that the refrigeration cycle is controlled by a control method in accordance with the detected composition. A control target value is set in accordance with the detected composition, and when the composition is varied, the control target is changed in accordance with that variation. As a result, even when the refrigerant composition is varied, the refrigeration cycle can be operated stably. The refrigeration cycle uses a non-azeotrope refrigerant, and includes a device for detecting the composition of a non-azeotrope refrigerant; a device for detecting the operating state of the refrigeration cycle, i.e., status values to be controlled, such as temperature or pressure; a computation control apparatus for accepting composition, temperature, pressure or the like, detected by the detecting device as inputs and for performing signal conversion, computation control for control targets, or the like; and a drive apparatus for driving the components of the refrigeration cycle, such as a compressor or a refrigerant pressure reduction apparatus. &lt;IMAGE&gt;</p>