公开(公告)号：WO2018031071A1

公开(公告)日：2018-02-15

申请号：PCT/US2017/020953

申请日：2017-03-06

Applicant: DANFOSS A/S

Inventor： SUN, Lin ,  LIN, Huaiyu

IPC: F25B5/00 ,  F25B6/00 ,  F25B41/00 ,  F25B49/02 ,  F04B49/20 ,  H02P5/46 ,  H02P23/28 ,  H02P29/50

Abstract: Compressors in a refrigerant loop are driven by variable frequency drives. The variable frequency drives are configured to demand current from an alternating current power source at different phases relative to one another such that at least one current harmonic frequency at the alternating current power source is cancelled.

Abstract translation:

制冷剂回路中的压缩机由变频驱动器驱动。 变频驱动器被配置为从交流电源以相互不同的相位请求电流，使得交流电源处的至少一个电流谐波频率被抵消。

公开(公告)号：WO2016003467A1

公开(公告)日：2016-01-07

申请号：PCT/US2014/045388

申请日：2014-07-03

Applicant: DANFOSS A/S

Inventor： THORNTON, William Turner ,  RASMUSSEN, Mogens ,  SUN, Lin

IPC: F25B1/00

CPC classification number: F25B31/006 ,  F25B1/053 ,  F25B1/10 ,  F25B5/02 ,  F25B49/02 ,  F25B2341/0662 ,  F25B2400/05 ,  F25B2600/0253 ,  F25B2600/2513 ,  F25B2600/2515 ,  F25B2700/19 ,  F25B2700/21153 ,  F25B2700/21175 ,  Y02B30/741

Abstract: An example refrigerant system according to an exemplary aspect of this disclosure includes, among other things, a refrigerant loop having at least a condenser, an evaporator, and a compressor. The compressor includes a motor in communication with a variable speed drive. The system further includes a cooling circuit including a pressure regulator downstream of a heat exchanger, the heat exchanger absorbing heat from the variable speed drive.

Abstract translation: 根据本公开的示例性方面的示例性制冷剂系统尤其包括至少具有冷凝器，蒸发器和压缩机的制冷剂回路。 压缩机包括与变速驱动器连通的电动机。 该系统还包括冷却回路，该冷却回路包括在热交换器下游的压力调节器，热交换器从变速驱动器吸收热量。

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

Applicant: Danfoss A/S ,  Li, Tianlei ,  Sun, Zili ,  Sun, Lin

Inventor： LI, Tianlei ,  SUN, Zili ,  SUN, Lin

IPC: F04D27/02 ,  F04D29/62 ,  F04D29/42

Abstract: 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.

公开(公告)号：EP2766676B1

公开(公告)日：2018-03-21

申请号：EP12832508.1

申请日：2012-05-08

Applicant: Danfoss A/S

Inventor： SUN, Lin ,  BISHOP, Paul D. ,  LIN, Huai Yu ,  ALVARES, Jose ,  VEERASURLA, Ramesh

IPC: F25B31/00

CPC classification number: F25B31/006 ,  F25B1/005 ,  F25B31/008 ,  F25B40/02 ,  F25B2400/13

Abstract: 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.

公开(公告)号：WO2015126393A1

公开(公告)日：2015-08-27

申请号：PCT/US2014/017295

申请日：2014-02-20

Applicant: DANFOSS A/S

Inventor： THORNTON, William Turner ,  SUN, Lin

IPC: F04D15/00

CPC classification number: F04D27/0253 ,  F04D17/12 ,  F04D27/001 ,  F04D27/0207 ,  F04D27/0261 ,  F04D29/058 ,  F04D29/444 ,  F25B1/053 ,  F25B1/10

Abstract: This disclosure relates to a control system and method for the centrifugal compressor. The system, for example, includes a controller configured command an adjustment of at least one of (1) a flow regulator and (2) a speed of a shaft in order to provide safe, efficient compressor operation. Centrifugal compressors are used to circulate refrigerant in a chiller via a refrigerant loop. Centrifugal compressors operate efficiently before reaching a condition known as surge.

Abstract translation: 本公开涉及一种用于离心式压缩机的控制系统和方法。 该系统例如包括控制器，其配置为对（1）流量调节器和（2）轴的速度中的至少一个进行调节，以便提供安全，有效的压缩机操作。 离心式压缩机用于通过制冷剂回路在制冷机中循环制冷剂。 离心式压缩机在达到称为浪涌的状态之前有效运行。

公开(公告)号：EP3108144B1

公开(公告)日：2020-02-05

申请号：EP14882987.2

申请日：2014-02-20

Applicant: Danfoss A/S

Inventor： THORNTON, William Turner ,  SUN, Lin

IPC: F04D15/00 ,  F04D27/02

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

Applicant: Danfoss A/S ,  Li, Tianlei ,  Sun, Lin

Inventor： LI, Tianlei ,  SUN, Lin ,  DOBRICA, Mihai B.

IPC: F04D29/08 ,  F04D29/10

Abstract: 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.

公开(公告)号：EP2756240B1

公开(公告)日：2019-05-01

申请号：EP11872363.4

申请日：2011-09-14

Applicant: Danfoss A/S

Inventor： SUN, Lin ,  ALVARES, Jose ,  RASMUSSEN, Mogens

IPC: F25B49/02 ,  F04D29/058 ,  F04D27/00

公开(公告)号：EP3069089A1

公开(公告)日：2016-09-21

申请号：EP14861633.7

申请日：2014-11-14

Applicant: Danfoss A/S

Inventor： SUN, Lin ,  QUITALEG, Salvador ,  BRASZ, Joost

IPC: F25B1/04 ,  F25B1/00 ,  F04D23/00 ,  F04D17/12

CPC classification number: F04D17/122 ,  F04D27/0207 ,  F04D27/0238 ,  F25B1/053 ,  F25B1/10 ,  F25B41/04 ,  F25B2400/07 ,  F25B2400/13

Abstract: 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.

公开(公告)号：EP3164648B1

公开(公告)日：2020-12-09

申请号：EP14896917.3

申请日：2014-07-03

Applicant: Danfoss A/S

Inventor： THORNTON, William Turner ,  RASMUSSEN, Mogens ,  SUN, Lin

IPC: F25B1/10 ,  F25B1/053 ,  F25B5/02 ,  F25B31/00 ,  F25B49/02