公开(公告)号：WO2021013869A1

公开(公告)日：2021-01-28

申请号：PCT/EP2020/070626

申请日：2020-07-22

Applicant: DANFOSS A/S

Inventor： FREDERIKSEN, Bjarne ,  VOIGT, Soren Tellefsen Herold

IPC: F16K31/02 ,  F24D19/10 ,  G05D23/19

Abstract: The present invention relates to a valve actuator (1) comprising a housing arrangement, an actuating element (2) having a moveable actuation member (3), and electric supply means (20) connected to the actuating element (3). An interior space (7) of a first housing part (4, 5) accommodates and supports and the actuation element (2) and a connection (8) of the electric supply means (20) thereto. For providing a reliable, simple, and cost-effective way to reach a high IP code, a dynamic sealing (11) is arranged between a wall of a cylindrical opening (50) of the interior space (7) and an radial outer surface of an engagement protrusion (60) of a second housing part (6) that extends into the cylindrical opening (50) for engagement with the actuating element (3). The interior space (7) of the first housing part (4, 5) is sealed and encapsulated from an outside of the first housing part (4, 5).

公开(公告)号：WO2020187468A1

公开(公告)日：2020-09-24

申请号：PCT/EP2020/051795

申请日：2020-01-24

Applicant: DANFOSS A/S

Inventor： BUSBY, Bruce ,  BIRKELUND, Michael ,  VAN BEEK, Johan

IPC: F04D27/02

Abstract: The invention relates to a compressor unit (200) for a refrigeration system using a refrigerant. The compressor (200) unit comprises a centrifugal compressor (201) for compressing the refrigerant, wherein the compressor (201) has a discharge outlet (204) for discharging the compressed refrigerant,anda check valve (1; 100; 301a). An inlet (83) of the check valve (1; 100; 301a) is in fluid connection with the discharge outlet (204) of the compressor (201). In order to provide a more reliable and more quite compressor unit (200), the check valve(1; 100; 301a) is a nozzle check valve including a damping mechanism (41, 50; 50, 141), wherein a closing parameter of the check valve (1; 100; 301a) is between 50 s/m² and 2000 s/m², wherein the closing parameter is a closing time of the check valve (1; 100; 301a) divided by a port area of the check valve (1; 100; 301a).

公开(公告)号：WO2020176339A1

公开(公告)日：2020-09-03

申请号：PCT/US2020/019192

申请日：2020-02-21

Applicant: DANFOSS A/S

Inventor： PEREZ, Alonso ,  SUN, Lin Xiang ,  YAN, Jin ,  LI, Tianlei

IPC: F16J15/447 ,  F01D5/20 ,  F01D11/08

Abstract: A compressor according to an exemplary aspect of the present disclosure includes, among other things, a rotor configured to rotate with respect to a stator, the stator having an abradable portion. At least one labyrinth seal is between the rotor and the stator, wherein the labyrinth seal comprises a plurality of teeth extending from the rotor toward the abradable portion.

公开(公告)号：WO2020126212A1

公开(公告)日：2020-06-25

申请号：PCT/EP2019/080746

申请日：2019-11-08

Applicant: DANFOSS A/S

Inventor： FARAHANI, Saeed Davoudabadi

IPC: G10K11/162

Abstract: Noise generating devices in residential and industrial applications can be silenced by way of 3D printed noise dampeners. A noise reducing jacket intended for being mounted fully or partly around a noise generating device is characterized in that the noise reducing jacket comprises a wall and a chamber, wherein the wall consists of 3D printed powder material which has been sintered, and the chamber is filled with 3D printer powder material which is not sintered. A noise reducing jacket and a method for 3D printing such jacket is disclosed. In one embodiment of the invention the noise reducing jacket is applied to a refrigerant expansion valve.

公开(公告)号：WO2020099271A1

公开(公告)日：2020-05-22

申请号：PCT/EP2019/080719

申请日：2019-11-08

Applicant: DANFOSS A/S

Inventor： HOLM, Jørgen Grønbæk ,  HANSEN, Hans-Henning ,  SHETTY, Veenith

IPC: G01D11/24 ,  F16L41/00

Abstract: A sensor housing (1) comprising a longitudinal axis (2), a clamping area (3) surrounding the longitudinal axis (2) and a recess (4) in the clamping area (3) is described, the recess (4) running in circumferential direction. In such a sensor housing a recess in the clamping area (3) should be provided with low production costs. To this end the recess (4) is formed between a part 6 of the housing (1) and a locking element (5) fixed to the housing (1).

公开(公告)号：WO2019229029A1

公开(公告)日：2019-12-05

申请号：PCT/EP2019/063742

申请日：2019-05-28

Applicant: BECKHOFF AUTOMATION GMBH ,  DANFOSS A/S

Inventor： BODEN, Sean ,  SCHEMMANN, Georg

IPC: F16K37/00 ,  G05D7/06

Abstract: A valve actuator (1) is described comprising a drive (10) acting on an actuation element (9), a force sensor sensing a force (14) acting on the actuation element (9), and a stroke sensor (13) sensing a displacement of the actuation element (9).

公开(公告)号：WO2018108242A1

公开(公告)日：2018-06-21

申请号：PCT/EP2016/080672

申请日：2016-12-12

Applicant: DANFOSS A/S

Inventor： JESPERSEN, Lars ,  STEFFENSEN, Henrik Bork

IPC: G01N27/22

Abstract: The invention relates to a capacitive water droplet sensor (1) comprising a printed circuit board. The sensor (1) comprises a first electrode (6) and a second electrode (7) both arranged in a sensor layer of the printed circuit board. The first electrode (6) and the second electrode (7) form a capacitor (2) of the sensor (1). Task of the invention is to provide a capacitive sensor that is easier to integrate into an existing printed circuit board. To this end, the first electrode (6) and the second electrode (7) are fully covered to an outside of the printed circuit board by an electrically insulating, water-non-absorbent material (8).

公开(公告)号：WO2017194651A1

公开(公告)日：2017-11-16

申请号：PCT/EP2017/061274

申请日：2017-05-11

Applicant: DANFOSS A/S

Inventor： MORTENSEN, Ole ,  BONDE, Erik Thomas ,  RASMUSSEN, Jens Erik

IPC: F25B41/06 ,  F16K1/52

Abstract: The invention relates to an insert (1) for a thermostatic expansion valve as a thermostatic expansion valve (2) comprising such an insert and to a method of assembling such a thermostatic expansion valve (2). The insert (1) comprises an expansion valve element (3) and an expansion valve seat (4). The expansion valve element (3) is held inside the insert (1) by a biasing member (5), wherein the insert (1) is structured and arranged to be inserted into a valve housing (8). The task of the invention is to provide an insert for a thermostatic expansion valve that allows a simple assembly of the valve and also provides an improved functionality. The task is solved in that the insert (1) further comprises a control valve (12), wherein the control valve (12) is located in the same flow path through the insert (1) as the expansion valve seat (4).

Abstract translation: 本发明涉及一种用于恒温膨胀阀的插入件（1），其作为包括这种插入件的恒温膨胀阀（2）并涉及一种组装这种恒温膨胀阀（2）的方法。 插入件（1）包括膨胀阀元件（3）和膨胀阀座（4）。 膨胀阀元件（3）通过偏置构件（5）保持在插入件（1）内部，其中插入件（1）被构造和布置成插入到阀壳体（8）中。 本发明的任务是提供一种用于恒温膨胀阀的插入件，其允许阀的简单组装并且还提供改进的功能。 该任务通过以下方式解决：插入件1还包括控制阀12，其中控制阀12位于与膨胀阀座4相同的通过插入件1的流动路径中。 / p>

公开(公告)号：WO2017184804A1

公开(公告)日：2017-10-26

申请号：PCT/US2017/028490

申请日：2017-04-20

Applicant: DANFOSS A/S

Inventor： BILBOW JR., William M.

IPC: F04B35/04 ,  F04D19/02 ,  F04D25/06 ,  F04D29/053 ,  F04D29/54 ,  F04D29/56

Abstract: One exemplary embodiment of this disclosure relates to a refrigerant compressor for use in a chiller system. The compressor includes an electric motor arranged upstream of a stage of a compressor in the main refrigerant flow path. This disclosure also relates to an axial flow compressor of a relatively high capacity, and a recirculation feature for the same.

Abstract translation: 本公开的一个示例性实施例涉及一种用于冷却器系统中的制冷剂压缩机。 压缩机包括布置在主制冷剂流动路径中的压缩机的级的上游的电动机。 本公开还涉及相对高容量的轴流式压缩机以及用于其的再循环特征。

公开(公告)号：WO2017167389A1

公开(公告)日：2017-10-05

申请号：PCT/EP2016/057168

申请日：2016-03-31

Applicant: DANFOSS A/S

Inventor： JESPERSEN, Lars ,  ANDERSEN, David Brisson

IPC: G01F1/66

Abstract: The current invention relates to a method for monitoring an ultrasonic flow meter (1) comprising the steps of generating a reference fingerprint comprising one or more initial system parameters of the ultrasonic flow meter (1) and comparing the generated reference fingerprint to the same system parameters being currently measured when the ultrasonic flow meter (1) is in use. According to the invention, a reference digital sample of an initial ultrasonic signal is generated in order to generate data for the reference fingerprint, the initial ultrasonic signal being sent and received by the ultrasonic flow meter (1) and the sent (Tx) and/or the received (Rx) initial ultrasonic signal being digitally sampled by the ultrasonic flow meter (1) so as to obtain a Tx and/or Rx reference digital sample, respectively. This allows easy monitoring of the ultrasonic flow meter (1).

Abstract translation: 本发明涉及一种用于监测超声波流量计（1）的方法，该方法包括以下步骤：生成包括超声波流量计（1）的一个或多个初始系统参数的参考指纹;以及比较 当超声波流量计（1）正在使用时，产生与当前测量的相同系统参数相关的参考指纹。 根据本发明，生成初始超声波信号的参考数字样本以便生成参考指纹的数据，超声波流量计（1）发送和接收初始超声波信号，并且发送（Tx）和/ 或接收的（Rx）初始超声波信号被超声波流量计（1）数字地采样，以分别获得Tx和/或Rx参考数字采样。 这样可以方便地监测超声波流量计（1）。