发明名称 |
REFRIGERATION CYCLE APPARATUS AND OPERATING METHOD OF SAME |
摘要 |
A refrigeration cycle apparatus achieves efficient operation by constantly recovering power in a wide operating range. The refrigeration cycle apparatus regulates a pressure of a high pressure side by changing either one or both of an opening degree of the intermediate-pressure bypass valve and an opening degree of the pre-expansion valve on the basis of a density ratio that is obtained from an inflow refrigerant density of the expander and an inflow refrigerant density of the sub-compressor in an actual operating state and a design volume ratio that has been expected at the time of design and that is obtained from a stroke volume of the sub-compressor, a stroke volume of the expander, and a ratio of a flow rate of the refrigerant flowing to the sub-compressor. |
申请公布号 |
US2012318001(A1) |
申请公布日期 |
2012.12.20 |
申请号 |
US201013581477 |
申请日期 |
2010.03.25 |
申请人 |
TAKAYAMA KEISUKE;SHIMAZU YUSUKE;KAKUDA MASAYUKI;NAGATA HIDEAKI;HATOMURA TAKESHI;MITSUBISHI ELECTRIC CORPORATION |
发明人 |
TAKAYAMA KEISUKE;SHIMAZU YUSUKE;KAKUDA MASAYUKI;NAGATA HIDEAKI;HATOMURA TAKESHI |
分类号 |
F25D9/00 |
主分类号 |
F25D9/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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