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1. 发明申请

WO2013112122A2 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：WO2013112122A2
公开(公告)日：2013-08-01
申请号：PCT/US2012/022159
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 , F04D17/122 , F04D17/14 , F04D27/002 , 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。

2. 发明申请

WO2012060825A1 CENTRIFUGAL COMPRESSOR WITH FLUID INJECTOR DIFFUSER 审中-公开
标题翻译：带液体喷射器的离心式压缩机
公开(公告)号：WO2012060825A1
公开(公告)日：2012-05-10
申请号：PCT/US2010/055201
申请日：2010-11-03
申请人： DANFOSS TURBOCOR COMPRESSORS B.V. , SUN, Lin , BRASZ, Joost
发明人： SUN, Lin , BRASZ, Joost
IPC分类号： F01D17/08
CPC分类号： F01D17/08 , F01D5/145 , F02C3/32 , F04D27/0238 , F04D29/441 , F04D29/5846 , F04D29/681 , F04D29/684 , F05D2250/52 , F05D2270/17
摘要： A centrifugal compressor includes a housing providing in inlet, an impeller, a diffuser and a volute or collector. An electric motor is provided in the housing and is configured to drive at least one impeller via a shaft about an axis. The impeller includes an outlet end aligned with a diffuser and arranged at the throat. A variable fluid injector device is arranged downstream from the outlet end of the impeller in one example. The variable fluid injector device is configured to introduce high pressure fluid downstream from the impeller in response to a compressor regulation command. The injected fluid energizes the low momentum boundary layer, which provides compressor stability. A compressor controller is in communication with the variable fluid injection device to obtain a desired compressor operating condition.
摘要翻译：离心压缩机包括在入口中设置的壳体，叶轮，扩散器和蜗壳或收集器。电动机设置在壳体中并且构造成经由轴绕轴线驱动至少一个叶轮。叶轮包括与扩散器对准并布置在喉部处的出口端。在一个示例中，可变流体注射器装置布置在叶轮的出口端的下游。可变流体喷射器装置构造成响应于压缩机调节指令而从叶轮下游引入高压流体。喷射的流体激励低动量边界层，这提供了压缩机的稳定性。压缩机控制器与可变流体喷射装置连通以获得期望的压缩机运行状态。

3. 发明申请

WO2013133832A2 HIGH PRESSURE RATIO MULTI-STAGE CENTRIFUGAL COMPRESSOR 审中-公开
标题翻译：高压比多级离心压缩机
公开(公告)号：WO2013133832A2
公开(公告)日：2013-09-12
申请号：PCT/US2012/028221
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： F25B30/02
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。逆流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台入口和出口。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形状扩散器。

4. 发明申请

WO2012087306A1 VARIABLE-SPEED OIL-FREE REFRIGERANT CENTRIFUGAL COMPRESSOR WITH VARIABLE GEOMETRY DIFFUSER 审中-公开
标题翻译：具有可变几何差速器的可变速无油冷冻离心式压缩机
公开(公告)号：WO2012087306A1
公开(公告)日：2012-06-28
申请号：PCT/US2010/061754
申请日：2010-12-22
申请人： DANFOSS TURBOCOR COMPRESSORS B.V. , SUN, Lin , BRASZ, Joost
发明人： SUN, Lin , BRASZ, Joost
IPC分类号： F04D29/44
CPC分类号： F04D15/00 , F04D29/444 , F04D29/462 , F04D29/464 , F05D2250/52
摘要： A refrigerant compressor includes a housing providing a refrigerant outlet having a throat. An electric motor is provided in the housing to directly drive an impeller via a shaft about an axis in response to a variable speed command. The impeller includes an outlet end aligned with variable geometry diffuser. A magnetic bearing assembly rotationally supports the shaft relative to the housing in response to a magnetic bearing command. A member is arranged to adjust the throat area, and which can move in a direction generally parallel to the axis in response to an actuator receiving a compressor regulation command. A controller is configured to respectively provide the variable speed command, the magnetic bearing command and the compressor regulation command to the electric motor to vary throat area, the magnetic bearing assembly and the actuator to obtain a desired compressor operation without the need of variable inlet geometry.
摘要翻译：制冷剂压缩机包括提供具有喉部的制冷剂出口的壳体。电动机设置在壳体中，以响应于可变速度命令经由轴绕轴线直接驱动叶轮。叶轮包括与可变几何形状扩散器对准的出口端。磁轴承组件响应于磁轴承指令相对于壳体旋转地支撑轴。构件被布置成响应于接收压缩机调节命令的致动器而调节喉部区域，并且其可以在大致平行于轴线的方向上移动。控制器被配置为分别向电动机提供变速指令，磁轴承命令和压缩机调节指令以改变喉部区域，磁轴承组件和致动器以获得期望的压缩机操作，而不需要可变入口几何形状。

5. 发明申请

WO2013039492A1 CENTRIFUGAL COMPRESSOR DIFFUSER CONTROL 审中-公开
标题翻译：离心式压缩机扩压器控制
公开(公告)号：WO2013039492A1
公开(公告)日：2013-03-21
申请号：PCT/US2011/051504
申请日：2011-09-14
申请人： DANFOSS TURBOCOR COMPRESSORS B.V. , SUN, Lin , ALVARES, Jose , RASMUSSEN, Mogens
发明人： SUN, Lin , ALVARES, Jose , RASMUSSEN, Mogens
IPC分类号： F25B49/02
CPC分类号： F04D27/002 , F04D17/10 , F04D27/001 , F04D27/0246 , F04D29/058 , F04D29/462 , F04D29/464 , F25B1/053
摘要： A centrifugal refrigerant compressor system includes an impeller connected to a shaft. A diffuser is arranged on a downstream side of the impeller and is configured to regulate refrigerant flow exiting the impeller. A magnetic bearing supports the shaft. A sensing element is configured to produce an output relating to a shaft condition. A controller is configured to receive the output and determine an undesired impeller operating condition based upon the shaft condition. The controller is configured to command the diffuser to a desired state in response to the undesired impeller operating condition.
摘要翻译：离心制冷剂压缩机系统包括连接到轴的叶轮。扩散器设置在叶轮的下游侧，并且构造成调节离开叶轮的制冷剂流。磁轴承支撑轴。感测元件被配置为产生与轴条件有关的输出。控制器被配置为接收输出并基于轴条件确定不期望的叶轮操作条件。控制器被配置为响应于不期望的叶轮操作条件来将扩散器命令到期望的状态。

6. 发明申请

WO2013039572A1 MOTOR COOLING AND SUB-COOLING CIRCUITS FOR COMPRESSOR 审中-公开
标题翻译：压缩机电机冷却和副冷却电路
公开(公告)号：WO2013039572A1
公开(公告)日：2013-03-21
申请号：PCT/US2012/036868
申请日：2012-05-08
申请人： DANFOSS TURBOCOR COMPRESSORS B.V. , SUN, Lin , BISHOP, Paul D. , LIN, Huai Yu , ALVARES, Jose , VEERASURLA, Ramesh
发明人： SUN, Lin , BISHOP, Paul D. , LIN, Huai Yu , ALVARES, Jose , VEERASURLA, Ramesh
IPC分类号： F25B31/02
CPC分类号： F25B31/006 , F25B1/005 , F25B31/008 , F25B40/02 , F25B2400/13
摘要： An example of the disclosed refrigerant system includes a compressor having a motor that is cooled by motor cooling fluid provided to the motor from the main refrigerant loop by a motor cooling circuit. The example system further includes a sub-cooling circuit to cool the motor cooling fluid.
摘要翻译：所公开的制冷剂系统的一个实例包括一个压缩机，该压缩机具有通过电动机冷却回路从主制冷剂回路供给电动机的电动机冷却流体冷却的电动机。该示例系统还包括用于冷却电动机冷却流体的副冷却回路。

7. 发明申请

WO2012015398A1 REFRIGERANT COMPRESSOR MAGNETIC BEARING 审中-公开
标题翻译：制冷压缩机磁力轴承
公开(公告)号：WO2012015398A1
公开(公告)日：2012-02-02
申请号：PCT/US2010/043481
申请日：2010-07-28
申请人： DANFOSS TURBOCOR COMPRESSORS B.V. , SUN, Lin , PEPIN, Alain
发明人： SUN, Lin , PEPIN, Alain
IPC分类号： H02K7/09
CPC分类号： F04D29/048 , F04D13/0633 , F04D25/0606 , F04D25/062 , F04D29/046 , F04D29/058 , F16C32/0461 , F16C32/048 , F16C2360/44 , H02K3/325 , H02K3/522 , H02K5/124 , H02K7/09
摘要： A magnetic bearing assembly includes a lamination stack with coil apertures extending between opposing sides. A continuous unitary insulation layer is overmoulded onto the opposing sides and within the coil apertures providing a coil aperture lining. The insulation layer includes a wall within the coil aperture adjoining coil aperture lining and bisecting the coil aperture into first and second openings. A coil portion is disposed in each of the first and second openings and electrically isolated from one another by the wall. The magnetic bearing assembly is arranged in a refrigerant compressor that includes an electric motor rotationally configured to rotationally drive an impeller via a shaft. A controller is in communication with the magnetic bearing and configured to energize the coils and provide a magnetic field rotationally supporting the shaft.
摘要翻译：磁轴承组件包括具有在相对侧之间延伸的线圈孔的叠片。连续的单一绝缘层被包覆模制到相对的侧面和线圈孔内，提供线圈孔衬里。绝缘层包括在线圈孔内的壁，邻近线圈孔衬里并将线圈孔平分成第一和第二开口。线圈部分设置在第一和第二开口的每一个中，并通过壁彼此电隔离。磁性轴承组件布置在制冷剂压缩机中，该制冷剂压缩机包括旋转地构造成经由轴旋转地驱动叶轮的电动机。控制器与磁性轴承连通并且被配置为对线圈通电并提供旋转地支撑轴的磁场。

8. 发明申请

WO2015073835A1 TWO-STAGE CENTRIFUGAL COMPRESSOR WITH EXTENDED RANGE AND CAPACITY CONTROL FEATURES 审中-公开
标题翻译：具有扩展范围和容量控制功能的两级离心式压缩机
公开(公告)号：WO2015073835A1
公开(公告)日：2015-05-21
申请号：PCT/US2014/065722
申请日：2014-11-14
申请人： DANFOSS TURBOCOR COMPRESSORS B.V.
发明人： SUN, Lin , QUITALEG, Salvador , BRASZ, Joost
IPC分类号： F25B1/04 , F25B1/00 , F04D23/00 , F04D17/12
CPC分类号： F04D17/122 , F04D27/0207 , F25B1/053 , F25B1/10 , F25B41/04 , F25B2400/07 , F25B2400/13
摘要： One exemplary embodiment of this disclosure relates to a centrifugal refrigerant compressor system. The system includes a condenser, an evaporator, and an economizer between the condenser and the evaporator. The system further includes a centrifugal compressor having a first impeller and a second impeller downstream of the first impeller. The compressor includes at least one port. Fluid from a recirculation flow path and an economizer flow path is introduced into a main flow path of the compressor by way of the at least one port.
摘要翻译：本公开的一个示例性实施例涉及一种离心制冷剂压缩机系统。该系统包括在冷凝器和蒸发器之间的冷凝器，蒸发器和节能器。该系统还包括离心式压缩机，其具有在第一叶轮下游的第一叶轮和第二叶轮。压缩机包括至少一个端口。通过至少一个端口将来自再循环流路和节约器流路的流体引入压缩机的主流路。

9. 发明公开

EP3587826A1 VARIABLE STAGE COMPRESSORS 有权转让
公开(公告)号：EP3587826A1
公开(公告)日：2020-01-01
申请号：EP19183466.2
申请日：2019-06-28
申请人： Danfoss A/S , Li, Tianlei , Sun, Zili , Sun, Lin
发明人： LI, Tianlei , SUN, Zili , SUN, Lin
IPC分类号： F04D27/02 , F04D29/62 , F04D29/42
摘要： A centrifugal compressor includes a first stage and a second stage. At least one of the first stage and the second stage includes an impeller and a shroud spaced from the impeller and configured to guide a fluid flow through the impeller. The shroud is selectively moveable between an engaged position and a disengaged position.

10. 发明公开

EP3587827A1 REFRIGERANT COMPRESSOR SEAL ARRANGEMENTS 有权转让
公开(公告)号：EP3587827A1
公开(公告)日：2020-01-01
申请号：EP19183467.0
申请日：2019-06-28
申请人： Danfoss A/S , Li, Tianlei , Sun, Lin
发明人： LI, Tianlei , SUN, Lin , DOBRICA, Mihai B.
IPC分类号： F04D29/08 , F04D29/10
摘要： A centrifugal compressor, such as for HVAC application, includes a rotary component rotatable about an axis, a static component, and a brush seal fixed to one of the static component and the rotary component. The brush seal includes bristles that contact the other of the static component and the rotary component.

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