发明名称 |
Refrigeration cycle control unit |
摘要 |
A refrigeration cycle control unit comprises a discharge pressure estimation means for estimating a discharge pressure of a compressor (18) by referring to a physical value with a correlation with a suction pressure of the compressor (18) estimated or detected by a suction pressure estimation or detection means and a physical value with a correlation with a pressure difference between the discharge pressure and the suction pressure estimated or detected by a pressure difference estimation or detection means. In a refrigeration cycle having an external signal control type variable displacement compressor (18), a discharge pressure of the compressor (18) can be estimated without detecting a high-pressure side pressure by a sensor, and the discharge pressure can be controlled at an optimum pressure to protect the compressor (18), and further, it is possible to make a more inexpensive system. <IMAGE> |
申请公布号 |
EP1489370(A1) |
申请公布日期 |
2004.12.22 |
申请号 |
EP20040253518 |
申请日期 |
2004.06.11 |
申请人 |
SANDEN CORPORATION |
发明人 |
SUZUKI, KENICHI;IMAI, TOMONORI;INOUE, ATSUO;SHIINA, MASAKI |
分类号 |
F24F11/02;B60H1/32;F25B1/00;F25B27/00;F25B49/02 |
主分类号 |
F24F11/02 |
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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