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1. 发明申请

WO2013133832A3 HIGH PRESSURE RATIO MULTI-STAGE CENTRIFUGAL COMPRESSOR 审中-公开
标题翻译：高压比多级离心式压缩机
公开(公告)号：WO2013133832A3
公开(公告)日：2014-04-03
申请号：PCT/US2012028221
申请日：2012-03-08
申请人： DANFOSS TURBOCOR COMPRESSORS B V , SUN LIN , BRASZ JOOST
发明人： SUN LIN , BRASZ JOOST
IPC分类号： F25B13/00
CPC分类号： F25B30/02 , F04D17/122 , F04D25/06 , F04D27/002 , F04D27/004 , F04D29/048 , F04D29/462 , F25B1/053 , F25B1/10 , F25B13/00 , F25B41/046 , F25B2600/0253 , Y02B30/741
摘要： A heat pump system includes a refrigerant circuit. First and second heat exchangers are arranged in the refrigerant circuit. A flow reversing device selectively changes a direction of flow in the refrigerant circuit between the first and second heat exchangers. A centrifugal compressor is arranged in the fluid circuit and has first and second impellers arranged in series relative to one another to provide a desired compressor pressure ratio. In one example, the centrifugal compressor mounts the first and second impellers on opposing ends of a shaft. The first and second impellers respectively include first and second stage inlets and outlets. One example desired compressor pressure ratio of at least 10:1 corresponds to a second stage outlet pressure to a first stage inlet pressure. A first diffuser is arranged at the first stage outlet, and the first diffuser is a variable geometry diffuser.
摘要翻译：热泵系统包括制冷剂回路。第一和第二热交换器布置在制冷剂回路中。流动反向装置选择性地改变第一和第二热交换器之间的制冷剂回路中的流动方向。离心压缩机布置在流体回路中，并且具有相对于彼此串联布置的第一和第二叶轮以提供期望的压缩机压力比。在一个示例中，离心式压缩机将第一和第二叶轮安装在轴的相对端上。第一和第二叶轮分别包括第一和第二阶段入口和出口。至少10:1的所需压缩机压力比的一个示例对应于第二级出口压力到第一级入口压力。第一扩散器布置在第一级出口处，并且第一扩散器是可变几何扩散器。

2. 发明申请

WO2013112122A3 VARIABLE-SPEED MULTI-STAGE REFRIGERANT CENTRIFUGAL COMPRESSOR WITH DIFFUSERS 审中-公开
标题翻译：具有差速器的变速多级制冷机离心式压缩机
公开(公告)号：WO2013112122A3
公开(公告)日：2014-06-19
申请号：PCT/US2012022159
申请日：2012-01-23
申请人： DANFOSS TURBOCOR COMPRESSORS B V , SUN LIN , BRASZ JOOST , RASMUSSEN MOGENS
发明人： SUN LIN , BRASZ JOOST , RASMUSSEN MOGENS
IPC分类号： F25B1/04
CPC分类号： F04D17/12 , F04D27/0261 , F04D29/462 , F04D29/464 , F05D2250/52 , F25B1/00 , F25B1/053 , F25B1/10 , F25B2600/0253 , Y02B30/741
摘要： A refrigeration system includes a chiller having a refrigerant loop. A compressor is part of and in fluid communication with the refrigerant loop. The compressor has two stages, one with a variable geometry diffuser and one with a fixed geometry diffuser.
摘要翻译：制冷系统包括具有制冷剂回路的冷却器。压缩机是制冷剂回路的一部分并且与制冷剂回路流体连通。压缩机有两个阶段，一个具有可变几何扩散器，一个具有固定的几何扩散器。

3. 发明专利

IN7521DEN2014A HIGH PRESSURE RATIO MULTI STAGE CENTRIFUGAL COMPRESSOR 未知
公开(公告)号：IN7521DEN2014A
公开(公告)日：2015-04-24
申请号：IN7521DEN2014
申请日：2014-09-09
申请人： DANFOSS TURBOCOR COMPRESSORS B V
发明人： SUN LIN , BRASZ JOOST
IPC分类号： F25B13/00
摘要： A heat pump system includes a refrigerant circuit. First and second heat exchangers are arranged in the refrigerant circuit. A flow reversing device selectively changes a direction of flow in the refrigerant circuit between the first and second heat exchangers. A centrifugal compressor is arranged in the fluid circuit and has first and second impellers arranged in series relative to one another to provide a desired compressor pressure ratio. In one example the centrifugal compressor mounts the first and second impellers on opposing ends of a shaft. The first and second impellers respectively include first and second stage inlets and outlets. One example desired compressor pressure ratio of at least 10:1 corresponds to a second stage outlet pressure to a first stage inlet pressure. A first diffuser is arranged at the first stage outlet and the first diffuser is a variable geometry diffuser.

4. 发明专利

AU2012372806A1 High pressure ratio multi-stage centrifugal compressor 未知
公开(公告)号：AU2012372806A1
公开(公告)日：2014-10-02
申请号：AU2012372806
申请日：2012-03-08
申请人： DANFOSS TURBOCOR COMPRESSORS B V
发明人： SUN LIN , BRASZ JOOST
IPC分类号： F25B13/00
摘要： A heat pump system includes a refrigerant circuit. First and second heat exchangers are arranged in the refrigerant circuit. A flow reversing device selectively changes a direction of flow in the refrigerant circuit between the first and second heat exchangers. A centrifugal compressor is arranged in the fluid circuit and has first and second impellers arranged in series relative to one another to provide a desired compressor pressure ratio. In one example, the centrifugal compressor mounts the first and second impellers on opposing ends of a shaft. The first and second impellers respectively include first and second stage inlets and outlets. One example desired compressor pressure ratio of at least 10:1 corresponds to a second stage outlet pressure to a first stage inlet pressure. A first diffuser is arranged at the first stage outlet, and the first diffuser is a variable geometry diffuser.

5. 发明申请

WO2009079421A3 CONTROL DEVICE FOR HVAC SYSTEMS WITH INLET AND OUTLET FLOW CONTROL DEVICES 审中-公开
标题翻译：具有入口和出口流动控制装置的HVAC系统的控制装置
公开(公告)号：WO2009079421A3
公开(公告)日：2009-10-01
申请号：PCT/US2008086740
申请日：2008-12-14
申请人： CARRIER CORP , TETU LEE G , BRASZ JOOST
发明人： TETU LEE G , BRASZ JOOST
IPC分类号： F24F11/02 , F24F11/00
CPC分类号： F25B1/053 , F04D27/0253
摘要： A process for controlling operation of a heating, ventilation and air conditioning system broadly comprises providing a heating, ventilation and air conditioning system having an evaporator, a condenser, a compressor having an inlet and an outlet, and at least one flow control device; measuring a performance parameter of the heating, ventilation and air conditioning system; determining a performance parameter measurement of the flow indicative of onset of surge; determining a surge line of the heating, ventilation and air conditioning system based upon the performance parameter measurement; and independently controlling the at least one flow control device based upon the performance parameter to mitigate an onset of the surge.
摘要翻译：用于广泛地控制加热，通风和空调系统的操作的过程包括提供具有蒸发器，冷凝器，具有入口和出口的压缩机以及至少一个流量控制装置的加热，通风和空气调节系统; 测量供热，通风和空调系统的性能参数; 确定指示喘振发作的流量的性能参数测量值; 基于性能参数测量结果确定加热，通风和空气调节系统的喘振线; 以及基于所述性能参数独立地控制所述至少一个流量控制装置以减轻所述喘振的发作。

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