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1. 发明公开

EP3222943A1 SYSTEM AND METHOD TO MAINTAIN EVAPORATOR SUPERHEAT DURING PUMPED REFRIGERANT ECONOMIZER OPERATION 审中-公开
标题翻译：在抽水式制冷剂省煤器操作期间维持蒸发器过热的系统和方法
公开(公告)号：EP3222943A1
公开(公告)日：2017-09-27
申请号：EP16196650.2
申请日：2016-10-31
申请人： Liebert Corporation
发明人： NOLL, Roger , SCHUTTE, Daniel J. , RAVEN, Matthew , BIRCHMEIER, John
IPC分类号： F25B49/02
CPC分类号： F25B49/02 , F25B31/00 , F25B2400/0401 , F25B2400/13 , F25B2500/28 , F25B2600/13 , F25B2600/21 , F25B2600/23 , F25B2600/2513 , F25B2700/02 , F25B2700/19 , F25B2700/197 , F25B2700/2104 , F25B2700/2106 , F25B2700/21172 , F25B2700/21175 , Y02B30/745
摘要： The present disclosure relates to a method for controlling a level of superheat during a pump mode of operation of a refrigeration system, wherein the refrigeration system can operate in either the pump mode or a compressor mode, and has an electronically controlled expansion valve (EEV). A controller obtains a stored, predetermined pump differential pressure range able to be produced by a pump of the system. The controller also obtains a stored, predetermined superheat range, and detects a superheat level. When the detected superheat level is outside of the superheat temperature range, the controller commands adjusting at least one of the EEV and a speed of the pump based on whether the detected superheat level is above or below the superheat range, and whether a current pump differential pressure is above or below the predetermined pump differential pressure range.
摘要翻译：本发明涉及一种用于在制冷系统的泵运行模式期间控制过热水平的方法，其中该制冷系统可以以泵模式或压缩机模式运行，并且具有电子控制的膨胀阀（EEV）。控制器获得能够由系统的泵产生的存储的预定泵差压范围。控制器还获得存储的预定过热度范围，并检测过热度水平。当检测到的过热水平在过热温度范围之外时，控制器基于检测到的过热水平是高于还是低于过热范围来调整EEV和泵的速度中的至少一个，以及当前的泵差压力高于或低于预定的泵差压范围。

2. 发明公开

EP3094167A1 HIGH EFFICIENCY COOLING SYSTEM 有权转让
标题翻译： HOCHEFFIZIENTESKÜHLSYSTEM
公开(公告)号：EP3094167A1
公开(公告)日：2016-11-16
申请号：EP16171689.9
申请日：2012-04-16
申请人： Liebert Corporation
发明人： LIN, Zhiyong , NOLL, Roger , JUDGE, John F , HELMINK, Gary A , DOLCICH, Benedict J , SCHUTTE, Daniel J , SCHRADER, Timothy J
IPC分类号： H05K7/20 , F25B25/00 , F24F1/02
摘要： A cooling system has a cabinet and a plurality of separate cooling stages including an upstream cooling stage and a downstream cooling stage. At least the upstream cooling state is a variable capacity cooling stage. Each cooling stage has a cooling circuit. Evaporators of the cooling circuits are arranged in the cabinet so that air passes over them in serial fashion. A controller when a Call for Cooling first reaches a point where cooling is needed, operating the upstream cooling circuit to provide cooling and not the downstream cooling circuit. When the Call for Cooling has increased to a second point, the controller additionally operates the downstream cooling circuit to provide cooling. The cooling capacity at which the upstream cooling circuit is being operated is less than its full capacity when the Call for Cooling reaches the second point.
摘要翻译：冷却系统具有机柜和多个单独的冷却级，其包括上游冷却级和下游冷却级。至少上游冷却状态是可变容量冷却阶段。每个冷却阶段都有一个冷却回路。冷却回路的蒸发器布置在机柜中，使得空气以串联方式通过它们。当冷却呼叫首先到达需要冷却的点时，控制器操作上游冷却回路以提供冷却而不是下游冷却回路。当冷却呼叫增加到第二点时，控制器另外操作下游冷却回路以提供冷却。上游冷却回路正在运行的制冷量小于其致冷要求到达第二点的满容量。

3. 发明公开

EP2700289A2 HIGH EFFICIENCY COOLING SYSTEM 有权转让
标题翻译： HIGH高效冷却系统
公开(公告)号：EP2700289A2
公开(公告)日：2014-02-26
申请号：EP12717994.3
申请日：2012-04-16
申请人： Liebert Corporation
发明人： JUDGE, John F. , SCHRADER, Timothy J. , SILLATO, Stephen , NOLL, Roger , HELMINK, Gary A. , BARBATO, Pierpaolo , MANA, Giuseppe Dalla , MONNIER, Lou , LIN, Zhiyong , DOLCICH, Benedict J. , SCHUTTE, Daniel J. , HAGGY, Greg , HARVEY, Thomas , LU, Zongtao
IPC分类号： H05K7/20
CPC分类号： H05K7/20836 , F24F1/022 , F24F3/044 , F24F11/46 , F25B25/00 , F25B41/00 , F25B41/043 , F25B45/00 , F25B49/02 , F25B49/022 , F25B2400/06 , F25B2400/0751 , F25B2500/31 , F25D17/06 , H05K7/20827
摘要： A cooling system has a cabinet and a plurality of separate cooling stages including an upstream cooling stage and a downstream cooling stage. At least the upstream cooling state is a variable capacity cooling stage. Each cooling stage has a cooling circuit. Evaporators of the cooling circuits are arranged in the cabinet so that air passes over them in serial fashion. A controller when a Call for Cooling first reaches a point where cooling is needed, operating the upstream cooling circuit to provide cooling and not the downstream cooling circuit. When the Call for Cooling has increased to a second point, the controller additionally operates the downstream cooling circuit to provide cooling. The cooling capacity at which the upstream cooling circuit is being operated is less than its full capacity when the Call for Cooling reaches the second point.

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