发明名称 |
REFRIGERANT SYSTEM WTIH EXPANSION DEVICE BYPASS |
摘要 |
A refrigerant system is provided with an expansion device that may be a thermostatic expansion device or an electronic expansion device. A bypass line selectively allows a portion of refrigerant to bypass the expansion device and to flow through a fixed restriction expansion device such as an orifice positioned in parallel configuration with the main expansion device. A valve selectively enables or blocks refrigerant flow through this bypass line depending on the volume of refrigerant required to circulate through the refrigerant system as defined by environmental conditions and a mode of operation. The valve can be a simple shutoff valve or a three-way valve selectively allowing or blocking refrigerant flow through a particular refrigerant line or lines. In one embodiment, the expansion device is the main expansion device for the refrigerant system. In the other embodiment, the expansion device is a vapor injection expansion device for expanding refrigerant for performing an economizer function. The present invention allows the use of a smaller expansion device, which can be more precisely controlled, while still allowing the accommodation of higher refrigerant mass flow when necessary. |
申请公布号 |
EP2064496(A4) |
申请公布日期 |
2012.05.30 |
申请号 |
EP20060803758 |
申请日期 |
2006.09.18 |
申请人 |
CARRIER CORPORATION |
发明人 |
LIFSON, ALEXANDER;TARAS, MICHAEL F. |
分类号 |
F25B5/00;F25B41/00;F25B41/04;F25B41/06;F25B47/00 |
主分类号 |
F25B5/00 |
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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