公开(公告)号：EP3069089B1

公开(公告)日：2020-08-05

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

公开(公告)号：EP3361104A1

公开(公告)日：2018-08-15

申请号：EP18156631.6

申请日：2018-02-14

Applicant: Danfoss A/S

Inventor： SUN, Lin

IPC: F04D29/58 ,  F04D17/12 ,  F04D25/06 ,  F04D27/02 ,  F04D29/058 ,  F25B31/00

CPC classification number: F04D17/122 ,  F04D17/12 ,  F04D25/06 ,  F04D27/0276 ,  F04D29/057 ,  F04D29/058 ,  F04D29/4206 ,  F04D29/5806 ,  F04D29/5826 ,  F25B31/006 ,  F25B49/022 ,  F25B2400/13

Abstract: A compressor operates within a system having a cooling capacity below 60 tons. The compressor includes a hermetically sealed housing and a drive module and aero module within the housing. The drive module includes a motor, a rotor, and oil free bearings. The aero module has a centrifugal impeller driven by the drive module to compress a working fluid. The compressor is arranged such that the working fluid flows through the drive module before reaching the aero module.

公开(公告)号：EP2635772B1

公开(公告)日：2019-05-29

申请号：EP10859363.3

申请日：2010-11-03

Applicant: Danfoss A/S

Inventor： SUN, Lin ,  BRASZ, Joost

IPC: F01D17/08 ,  F04D27/02 ,  F01D5/14

公开(公告)号：EP2655890B1

公开(公告)日：2019-01-23

申请号：EP10860902.5

申请日：2010-12-22

Applicant: Danfoss A/S

Inventor： SUN, Lin ,  BRASZ, Joost

IPC: F04D29/44

公开(公告)号：EP2823240B1

公开(公告)日：2018-11-14

申请号：EP12870829.4

申请日：2012-03-08

Applicant: Danfoss A/S

Inventor： SUN, Lin ,  BRASZ, Joost

IPC: F25B13/00 ,  F25B1/053 ,  F04D25/06 ,  F04D27/00 ,  F04D29/048 ,  F04D17/12 ,  F25B1/10 ,  F04D29/46

CPC classification number: 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

Abstract: 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.

公开(公告)号：EP3164648A1

公开(公告)日：2017-05-10

申请号：EP14896917.3

申请日：2014-07-03

Applicant: Danfoss A/S

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

IPC: F25B1/00

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制冷剂系统尤其包括具有至少一个冷凝器，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，该冷却回路包括位于热交换器下游的压力调节器，该热交换器从变速驱动器吸收热量。

公开(公告)号：EP3108144A1

公开(公告)日：2016-12-28

申请号：EP14882987.2

申请日：2014-02-20

Applicant: Danfoss A/S

Inventor： THORNTON, William Turner ,  SUN, Lin

IPC: F04D15/00

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：EP2599190B1

公开(公告)日：2016-08-17

申请号：EP10855430.4

申请日：2010-07-28

Applicant: Danfoss A/S

Inventor： SUN, Lin ,  PEPIN, Alain

IPC: H02K7/09 ,  F04D29/058 ,  F16C32/04 ,  H02K5/124 ,  H02K3/32 ,  H02K3/52 ,  F04D25/06

CPC classification number: 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