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1. 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

2. 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。

3. 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.

4. 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.

5. 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.

6. 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.

7. 发明公开

EP2766676A1 MOTOR COOLING AND SUB-COOLING CIRCUITS FOR COMPRESSOR 有权转让
标题翻译：发动机冷却和冷却回路压缩机
公开(公告)号：EP2766676A1
公开(公告)日：2014-08-20
申请号：EP12832508.1
申请日：2012-05-08
申请人： Danfoss Turbocor Compressors BV.
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.

8. 发明公开

EP2655890A1 VARIABLE-SPEED OIL-FREE REFRIGERANT CENTRIFUGAL COMPRESSOR WITH VARIABLE GEOMETRY DIFFUSER 审中-公开
标题翻译：含油自由冷却和可变几何形状的扩散变速离心式压缩机
公开(公告)号：EP2655890A1
公开(公告)日：2013-10-30
申请号：EP10860902.5
申请日：2010-12-22
申请人： Danfoss Turbocor Compressors BV.
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.

9. 发明公开

EP2263009A2 MULTI-STAGE COMPRESSOR 审中-公开
标题翻译：多级压缩机
公开(公告)号：EP2263009A2
公开(公告)日：2010-12-22
申请号：EP08845513.4
申请日：2008-10-08
申请人： Danfoss Turbocor Compressors BV.
发明人： CONRY, Ronald, David , VESTERGAARD JOERGENSEN, Henrik , LOPES ALVARES, Junior, Jose
IPC分类号： F04D17/14 , F04D25/02 , F04D27/02
CPC分类号： F04D17/14 , F04D25/02 , F04D27/02 , F04D27/0269 , F04D29/052
摘要： A system and a method for adding and subtracting stages of compression to a compressor as and when the compressor requires them. If the compressor needs only a low pressure ratio, then the system and method allow the compressor to operate with only a primary pumping circuit spinning, while available additional stages, forming a secondary pumping circuit, and which may be required at other times when the needed pressure ratios increase, are decoupled from the rotating shaft, so that the compressor pumps at its most efficient and flexible point. Further, a system and method for adding and subtracting stages of compression to a compressor in order to increase and decrease the pumping capacity as and when required to satisfy a given load requirement.
摘要翻译：一种系统和一种当压缩机需要压缩时加入和减少压缩级的系统和方法。如果压缩机只需要低压比，则该系统和方法允许压缩机仅在主泵送回路旋转的情况下运行，而可用的附加级形成次级泵送回路，并且在需要的其他时间可能需要压力比增加，与旋转轴脱开，使压缩机在最有效和灵活的点上泵送。此外，提供了一种用于增加和减少压缩级的系统和方法，以便当需要满足给定的负载要求时增加和减小泵送容量。

10. 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.

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