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1. 发明公开

EP2823240A2 HIGH PRESSURE RATIO MULTI-STAGE CENTRIFUGAL COMPRESSOR 有权转让
标题翻译：一种多级离心式压缩机高压力比
公开(公告)号：EP2823240A2
公开(公告)日：2015-01-14
申请号：EP12870829.4
申请日：2012-03-08
申请人： Danfoss Turbocor Compressors BV.
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.

2. 发明公开

EP2756240A1 CENTRIFUGAL COMPRESSOR DIFFUSER CONTROL 有权转让
标题翻译：扰流控制对离心式压缩机
公开(公告)号：EP2756240A1
公开(公告)日：2014-07-23
申请号：EP11872363.4
申请日：2011-09-14
申请人： Danfoss Turbocor Compressors BV.
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.

3. 发明公开

EP2599190A1 REFRIGERANT COMPRESSOR MAGNETIC BEARING 有权转让
标题翻译：磁轴承用于制冷压缩机
公开(公告)号：EP2599190A1
公开(公告)日：2013-06-05
申请号：EP10855430.4
申请日：2010-07-28
申请人： Danfoss Turbocor Compressors BV.
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.

4. 发明公开

EP2457318A4 A ZERO-VOLTAGE-TRANSITION SOFT SWITCHING CONVERTER 审中-公开
标题翻译：零压过渡，顺利开关转换
公开(公告)号：EP2457318A4
公开(公告)日：2014-03-05
申请号：EP10802820
申请日：2010-07-21
申请人： DANFOSS TURBOCOR COMPRESSORS BV
发明人： GALEA COSMIN , LIN HUAI YU
IPC分类号： H02M7/5387 , H02M1/34
CPC分类号： H02M7/5387 , H02M2001/342 , H02M2007/4811 , Y02B70/1491

5. 发明公开

EP2427645A4 RANKINE CYCLE HEAT RECOVERY METHODS AND DEVICES 审中-公开
标题翻译： VERFAHREN UND VORRICHTUNGEN ZURWÄRMERÜCKGEWINNUNGAUS EINEM RANKINE-PROZESS
公开(公告)号：EP2427645A4
公开(公告)日：2014-01-22
申请号：EP10772352
申请日：2010-01-11
申请人： DANFOSS TURBOCOR COMPRESSORS BV
发明人： CONRY RONALD DAVID
IPC分类号： F02G5/00 , F01K15/02 , F01K23/06 , F01N5/02 , F01P3/22 , F02B39/08 , F02G5/04
CPC分类号： F02G5/04 , F01K15/02 , F01K23/065 , F01N5/02 , F01P3/22 , F02B39/085 , F02G2260/00 , Y02T10/16 , Y02T10/166
摘要： An integrated expansion turbine/electrical generator assembly (collectively referred to as a "turbo-generator") suitable for use in waste heat recovery and similar applications. The turbo-generator uses a common shaft mounting a one or more stage expansion turbine and a homopolar electrical generator. Magnetic levitating axial and thrust bearings are used to hold the common shaft in its proper position with a fixed housing. The magnetic bearings minimize frictional losses, allowing the common shaft to spin at a very high rotational velocity. Sensor rings continually monitor the common shaft's position. This information is used by control electronics to regulate the magnetic bearings in order to hold the rotating shaft's position. Electrical energy is extracted from the rotating shaft in the form of a direct current. Preferably integrated power-switching electronics are used to generate single or three-phase AC power, which can be phase-matched to an existing power grid or other application.
摘要翻译：适用于废热回收和类似应用的集成膨胀涡轮/发电机组件（统称为“涡轮发电机”）。涡轮发电机使用安装一个或多个级膨胀涡轮机和同极发电机的公共轴。磁悬浮轴向和推力轴承用于将公共轴固定在其固定外壳的正确位置。磁性轴承最小化摩擦损失，允许公共轴以非常高的旋转速度旋转。传感器环连续监控公共轴的位置。该信息由控制电子器件用于调节磁性轴承以保持旋转轴的位置。以直流形式从旋转轴提取电能。优选地，集成的功率开关电子器件用于产生可以与现有电网或其他应用相位匹配的单相或三相AC电力。

6. 发明公开

EP2510542A1 IGBT COOLING METHOD 审中-公开
标题翻译： IGBT-KÜHLVERFAHREN
公开(公告)号：EP2510542A1
公开(公告)日：2012-10-17
申请号：EP10836298.9
申请日：2010-03-08
申请人： Danfoss Turbocor Compressors BV.
发明人： CONRY, Ronald, David
IPC分类号： H01L23/34
CPC分类号： F28D15/0266 , F28D15/06 , H01L23/427 , H01L23/44 , H01L23/4735 , H01L2924/0002 , H01L2924/00
摘要： A method for cooling power electronic devices such as IGBT's. The method comprises placing the IGBT board in a containment structure and flooding the containment with circulating liquid refrigerant. The liquid refrigerant is boiled within the containment and the resulting gas is then removed for continued circulation within a heat engine. The phase change of the refrigerant provides excellent cooling properties. In addition, the ability to place the cooling medium directly over the IGBT's themselves represents a significant advantage.

7. 发明公开

EP2807430A2 VARIABLE-SPEED MULTI-STAGE REFRIGERANT CENTRIFUGAL COMPRESSOR WITH DIFFUSERS 有权转让
标题翻译：具有可变速度和扩散器多级离心式制冷压缩机
公开(公告)号：EP2807430A2
公开(公告)日：2014-12-03
申请号：EP12866468.7
申请日：2012-01-23
申请人： Danfoss Turbocor Compressors BV.
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.

8. 发明公开

EP2599190A4 REFRIGERANT COMPRESSOR MAGNETIC BEARING 有权转让
标题翻译：磁轴承用于制冷压缩机
公开(公告)号：EP2599190A4
公开(公告)日：2014-12-03
申请号：EP10855430
申请日：2010-07-28
申请人： DANFOSS TURBOCOR COMPRESSORS BV
发明人： SUN LIN , PEPIN ALAIN
IPC分类号： H02K7/09 , F04D25/06 , F04D29/058 , F16C32/04 , H02K3/32 , H02K3/52 , H02K5/124
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

9. 发明公开

EP2635772A1 CENTRIFUGAL COMPRESSOR WITH FLUID INJECTOR DIFFUSER 有权转让
标题翻译：带流体喷射器扩散器的离心式压缩机
公开(公告)号：EP2635772A1
公开(公告)日：2013-09-11
申请号：EP10859363.3
申请日：2010-11-03
申请人： Danfoss Turbocor Compressors BV.
发明人： SUN, Lin , BRASZ, Joost
IPC分类号： F01D17/08
CPC分类号： F04D27/0238 , F01D5/145 , F01D17/08 , F02C3/32 , 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：离心式压缩机包括在入口处提供的壳体，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围绕轴线的轴驱动至少一个叶轮。叶轮包括与扩散器对齐并布置在喉部处的出口端。在一个示例中，可变流体喷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命令而从叶轮向下游引入高压流体。注入的流体激发低动量边界层，这提供压缩机稳定性。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操作条件。

10. 发明公开

EP2457318A1 A ZERO-VOLTAGE-TRANSITION SOFT SWITCHING CONVERTER 审中-公开
标题翻译：零压过渡，顺利开关转换
公开(公告)号：EP2457318A1
公开(公告)日：2012-05-30
申请号：EP10802820.0
申请日：2010-07-21
申请人： Danfoss Turbocor Compressors BV.
发明人： GALEA, Cosmin , LIN, Huai Yu
IPC分类号： H02M3/24
CPC分类号： H02M7/5387 , H02M2001/342 , H02M2007/4811 , Y02B70/1491
摘要： A zero-voltage-transition soft switching converter (14) for converting a DC voltage comprises a load output terminal (13); a main switching bridge comprising at least one main switch (S1; S2) and an auxiliary circuit (15) connected to the main switching bridge. The auxiliary circuit comprises an auxiliary switch (SX1); auxiliary diodes (DX1, DX10) connected to positive and negative DC voltages and to a diode connection point; and a coupled inductor (TX1) having two coupled windings (Lr1; Lr2), connected between the load output terminal and the auxiliary switch and the diode connection point, respectively. The auxiliary circuit is connected to the main switching bridge to block currents in one direction between the main switching bridge and the auxiliary circuit, a residual magnetizing current otherwise freewheeling through a turned-on main switch and an auxiliary diode is reset in each switching cycle and thus no longer accumulated.

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