公开(公告)号：WO2023275398A1

公开(公告)日：2023-01-05

申请号：PCT/EP2022/068351

申请日：2022-07-01

Applicant: DANFOSS A/S

Inventor： VAN BEEK, Johan ,  BIRKELUND, Michael ,  MAYWALD, Uwe

IPC: F25B41/26

Abstract: The present invention pertains to a four-way reversing valve for a high capacity reversible heat pump compressor. The valve comprises a housing with four ports, namely a discharge port, a suction port, an evaporator port and a condenser port. It further comprises a conically shaped rotor provided rotatably inside the housing for varying flow paths between the four ports, wherein a large diameter face of the rotor comprises two separated openings, wherein a first opening fluidly connects the large diameter face to a small diameter face of the rotor via a first fluid conduit and a second opening fluidly connects the large diameter face to a radially outer portion of the rotor via a second fluid conduit. The invention also pertains to a set comprising two or more four-way reversing valves.

公开(公告)号：WO2021037970A1

公开(公告)日：2021-03-04

申请号：PCT/EP2020/073956

申请日：2020-08-27

Applicant: DANFOSS A/S

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

IPC: F25B13/00 ,  F25B43/00 ,  F25B43/02

Abstract: A common unit (10) for a refrigerant gas handling system (1) is described, the common unit (10) comprising an accumulator (4), a check valve (11), and a reversing valve (3). The check valve (11) and the reversing valve (3) are arranged together in a first area and the accumulator (4) is arranged in a second area. Such a system should achieve a good efficiency and a high reliability. To this end, the reversing valve (3) is connected to an actuator, wherein the actuator is arranged in the second area as well.

公开(公告)号：WO2019115555A1

公开(公告)日：2019-06-20

申请号：PCT/EP2018/084415

申请日：2018-12-11

Applicant: DANFOSS A/S

Inventor： VAN BEEK, Johan ,  PETERSEN, Hans Kurt ,  JENSEN, Leo Finn ,  BIRKELUND, Michael

IPC: F16K27/00 ,  F16K31/40 ,  F25B13/00 ,  F16K11/24 ,  F24F1/32

CPC classification number: F16K27/003 ,  F16K11/24 ,  F16K31/408 ,  F24F1/32

Abstract: A valve arrangement (1) for an operation mode selector is described, the valve arrangement comprising at least two valve modules (2), each of the valve modules comprising a housing section (3), a first mode selector valve (9) connecting a discharge conduit (7) and an evaporator conduit (19) and a second mode selector valve (10) connecting a suction conduit (8) and the evaporator conduit, the first mode selector valve and the second mode selector valve being connected by the housing section, and the valve modules being arranged side by side in a direction parallel to the discharge conduit and/or the suction conduit, wherein the evaporator conduit extends from the housing section in an area which is limited by a first plane (34) through the discharge conduit and a second plane (35) through the suction conduit and parallel to the first plane, and wherein the discharge conduit and the suction conduit are common for all of the valve modules. Such a valve arrangement should be made compact. To this end, for each valve module, the housing section is part of a housing, the housing comprising a discharge port (4), a suction port (5), and an evaporator port (6), wherein the discharge port is connected to the discharge conduit, and wherein the suction port is connected to the suction conduit.

公开(公告)号：WO2015173305A1

公开(公告)日：2015-11-19

申请号：PCT/EP2015/060599

申请日：2015-05-13

Applicant: DANFOSS A/S

Inventor： BIRKELUND, Michael

IPC: F04F5/04 ,  F25B41/00

CPC classification number: B05B1/3013 ,  F04F5/04 ,  F25B41/00 ,  F25B2341/0015

Abstract: An ejector arrangement (1) is provided comprising a housing (5), at least two ejectors (2) arranged in said housing (5), each ejector (2) having a motive inlet (3), a suction inlet (29), an outlet (11) and a longitudinal axis (17). Such an arrangement should have a simple construction. To this end said suction inlet (29) of said ejectors (2) are connected by means of fluid paths to a common suction line (8).

Abstract translation: 提供一种喷射器装置（1），其包括壳体（5），布置在所述壳体（5）中的至少两个喷射器（2），每个喷射器（2）具有动力入口（3），吸入口（29） 出口（11）和纵向轴线（17）。 这种安排应该有一个简单的结构。 为此，所述喷射器（2）的所述吸入口（29）通过流体路径连接到公共吸入管线（8）。

公开(公告)号：WO2014111397A1

公开(公告)日：2014-07-24

申请号：PCT/EP2014/050653

申请日：2014-01-15

Applicant: DANFOSS A/S

Inventor： BEEK, Johan van ,  BIRKELUND, Michael

IPC: F03G7/06 ,  F16K31/00

CPC classification number: F16K31/002 ,  F16K31/025 ,  F25B41/062

Abstract: The invention relates to an actuator for a valve in a refrigeration system. The invention also relates to a valve with such actuator, and to a refrigeration system with such valve. The actuator comprises an elongated Shape Memory Alloy (SMA) element extending along two or more string-like extensions from a distant end to a proximate end in relation to a valve element of a valve. The SMA element, when forming part of the valve, may extend from the distant end to the proximate end connected to a housing of the SMA element, however, electrically insulated from the housing. An encapsulation may provide a thermal resistance, a thermal conductor and/or an electrical resistance between the SMA element and other elements or the surroundings of the SMA element.

Abstract translation: 本发明涉及一种用于制冷系统中的阀的致动器。 本发明还涉及具有这种致动器的阀以及具有这种阀的制冷系统。 致动器包括细长的形状记忆合金（SMA）元件，其沿着两个或更多个线状延伸部延伸，从远端到相对于阀的阀元件的近端。 当形成阀的一部分时，SMA元件可以从远端延伸到连接到SMA元件的壳体的近端，然而，该元件与壳体电绝缘。 封装可以在SMA元件和SMA元件的其它元件或周围之间提供热阻，热导体和/或电阻。

公开(公告)号：WO2010045946A1

公开(公告)日：2010-04-29

申请号：PCT/DK2009/000222

申请日：2009-10-21

Applicant: DANFOSS A/S ,  BIRKELUND, Michael

Inventor： BIRKELUND, Michael

IPC: F16K31/40 ,  F16K25/00

CPC classification number: F16K31/404 ,  F16K25/005

Abstract: A servo valve (100) comprising a valve seat (112) and a diaphragm (116) which may be moved between a closed state in which the servo valve is closed and an open state in which the servo valve is open whereby a fluid may flow between the diaphragm and the valve seat, wherein the diaphragm is stiffer and/or harder than the valve seat.

Abstract translation: 一种伺服阀（100），包括阀座（112）和隔膜（116），所述阀座可在所述伺服阀关闭的关闭状态和所述伺服阀打开的打开状态之间移动，从而流体可能流动 在隔膜和阀座之间，其中隔膜比阀座更硬和/或更硬。

公开(公告)号：WO2009000271A1

公开(公告)日：2008-12-31

申请号：PCT/DK2008/000240

申请日：2008-06-26

Applicant: DANFOSS A/S ,  BIRKELUND, Michael ,  LARSEN, Jan Lindberg

Inventor： BIRKELUND, Michael ,  LARSEN, Jan Lindberg

IPC: H01F7/08 ,  H01F7/12 ,  F16K31/06

CPC classification number: H01F7/1205 ,  F16K31/0655 ,  F16K31/0675 ,  H01F7/081

Abstract: A magnetic actuator (1 ) comprising a stationary part (3), a movable part (4) and a coil (10) arranged circumferentially relatively to the movable part (4) in such a manner that the movable part (4) is moved relatively to the stationary part (3) in response to a magnetic field induced when an electrical current runs in the coil (10). The stationary part (3) and the movable part (4) are shaped in such a manner that one is provided with a protruding part (5) and the other is provided with a recess (6) adapted to receive the protruding part (5). Thereby the minimum distance between the stationary part (3) and the movable part (4) are kept relatively low, and it is thereby possible to obtain a large pulling force without increasing manufacturing costs. The actuator (1 ) further comprises a shading ring (7) providing a magnetic field having a phase which is different from the phase of the field induced by the coil (10). This prevents the movable part (4) from repeatedly hitting the stationary part (3) and makes the actuator (1 ) suitable for use in AC as well as DC applications. The actuator (1 ) is suitable for use in a magnetic valve (9).

Abstract translation: 一种磁性致动器（1），其包括固定部分（3），可移动部分（4）和线圈（10），所述可动部分（4）和所述线圈（10）以相对于所述可移动部分（4）圆周方向布置，使得所述可动部分 响应于当电流在线圈（10）中流动时感应的磁场，到静止部分（3）。 固定部分（3）和可动部分（4）的形状设置有一个突出部分（5），另一个设置有适于容纳突出部分（5）的凹部（6） 。 因此，固定部（3）和可动部（4）之间的最小距离保持相对较低，从而可以在不增加制造成本的情况下获得大的拉力。 致动器（1）还包括遮光环（7），其提供具有不同于由线圈（10）感应的场的相位的相位的磁场。 这防止可动部件（4）反复撞击固定部件（3）并且使致动器（1）适合于在AC和DC应用中使用。 致动器（1）适用于电磁阀（9）。

公开(公告)号：EP3152471B1

公开(公告)日：2020-04-08

申请号：EP15726112.4

申请日：2015-05-28

Applicant: Danfoss A/S

Inventor： BIRKELUND, Michael

IPC: F16K39/02 ,  F16K31/06

公开(公告)号：EP3152499A1

公开(公告)日：2017-04-12

申请号：EP15725279.2

申请日：2015-05-20

Applicant: Danfoss A/S

Inventor： BIRKELUND, Michael

IPC: F25B41/06 ,  F16K31/06

CPC classification number: F25B41/062 ,  F16K31/0644 ,  F16K31/0651 ,  F16K31/0655 ,  F16K37/0083 ,  F25B2600/2513 ,  F25B2600/2525

Abstract: An electronic expansion valve (1) is provided, comprising an inlet (9), an outlet (8), an armature (2), a stop member (3), a biasing member (4) and a solenoid coil (12). The biasing member (4) provides a biasing force on the armature (2) towards a closing direction while the solenoid coil (12) may be provided with a current to provide a magnetic force on the armature (2) towards an opening direction. It is intended to provide an electronic expansion valve that may be controlled more precisely and has a higher safety. To this end the pressure difference between the inlet pressure and the outlet pressure provides a differential pressure force on the armature (2) towards an opening direction to allow a fluid flow from the inlet (9) to the outlet (8), and furthermore the armature (2) is displaced away from the stop member (3) to allow a fluid flow from the inlet (9) to the outlet (8) if the sum of the magnetic force and the differential pressure force on the armature (2) exceeds the biasing force. The invention furthermore relates to a refrigeration system comprising such an electronic expansion valve as well as a method for calibrating such an electronic expansion valve.

Abstract translation: 的电子膨胀阀（1）设置在入口包括：（9）到出口（8）的电枢（2），一个止动件（3）在一偏置件（4）和一个螺线管线圈（12）。 偏压构件（4）上的电枢（2）朝关闭方向提供偏置力，而螺管线圈（12）可以设置有一个电流以朝向打开方向提供在电枢（2）的磁力。 它的目的是提供对电子膨胀阀也可被更精确地控制，并具有较高的安全性。 为此目的，入口压力和出口压力之间的压力差提供在电枢（2）朝向压差力以打开方向，以允许从所述入口（9）到所述出口（8）的流体流动，进一步的 电枢（2）移位从所述止动构件（3），以允许从所述入口（9）的流体流动至所述出口（8）如果磁力在电枢的总和和压差力（2）超过 作用力。 本发明进一步更涉及一种制冷系统，包括搜索电子膨胀阀的以及用于校准搜索电子膨胀阀的方法。

公开(公告)号：EP2946108B1

公开(公告)日：2017-03-01

申请号：EP14700985.6

申请日：2014-01-15

Applicant: Danfoss A/S

Inventor： BEEK, Johan van ,  BIRKELUND, Michael

IPC: F25B41/06 ,  F16K31/02 ,  F16K31/00

CPC classification number: F16K31/002 ,  F16K31/025 ,  F25B41/062

Abstract: The invention relates to an actuator for a valve in a refrigeration system. The invention also relates to a valve with such actuator, and to a refrigeration system with such valve. The actuator comprises an elongated Shape Memory Alloy (SMA) element extending along two or more string-like extensions from a distant end to a proximate end in relation to a valve element of a valve. The SMA element, when forming part of the valve, may extend from the distant end to the proximate end connected to a housing of the SMA element, however, electrically insulated from the housing. An encapsulation may provide a thermal resistance, a thermal conductor and/or an electrical resistance between the SMA element and other elements or the surroundings of the SMA element.