公开(公告)号：TW201502401A

公开(公告)日：2015-01-16

申请号：TW103121523

申请日：2014-06-23

Applicant: 丹佛斯公司 ,  DANFOSS A/S

Inventor： 克里斯坦森 摩頓 ,  CHRISTENSEN, MORTEN H. ,  布耶爾加爾德 尼爾斯 ,  BJERGGAARD, NIELS ,  漢森 雷內 ,  HANSEN, RENE ,  霍爾克 保羅 ,  HOLCK, POUL ,  拉斯姆森 本特卡斯滕 ,  RASMUSSEN, BENT KARSTEN

IPC: F16K17/30 ,  F16K1/46 ,  F16K25/00

CPC classification number: F16J3/02 ,  G05D7/0106

Abstract: 本發明公開了一種閥佈置(101)。所述閥佈置(101)用於控制加熱的或冷卻的流體的流量，所述閥佈置(101)包括：殼體(102)，所述殼體(102)具有入口(3)和出口(4)；壓力調節閥(111)，佈置在所述入口(3)和所述出口(4)之間，並且具有調節閥元件(112)，所述調節閥元件(112)連接到膜(115)，所述膜(115)包括至少一個密封凸緣(118、119)。在這種閥佈置中，膜的位置不總是被很好地限定，從而導致不希望的震動和噪聲。為保證膜(115)的正確地定位，第一密封凸緣(118)包括至少兩個台階(126、129)。

Abstract in simplified Chinese: 本发明公开了一种阀布置(101)。所述阀布置(101)用于控制加热的或冷却的流体的流量，所述阀布置(101)包括：壳体(102)，所述壳体(102)具有入口(3)和出口(4)；压力调节阀(111)，布置在所述入口(3)和所述出口(4)之间，并且具有调节阀组件(112)，所述调节阀组件(112)连接到膜(115)，所述膜(115)包括至少一个密封凸缘(118、119)。在这种阀布置中，膜的位置不总是被很好地限定，从而导致不希望的震动和噪声。为保证膜(115)的正确地定位，第一密封凸缘(118)包括至少两个台阶(126、129)。

公开(公告)号：US4955194A

公开(公告)日：1990-09-11

申请号：US418969

申请日：1989-10-10

Applicant: Thorkild Christensen ,  Svend E. Thomsen ,  Siegfried Zenker

Inventor： Thorkild Christensen ,  Svend E. Thomsen ,  Siegfried Zenker

IPC: F15B11/00 ,  F15B11/05 ,  F15B21/04 ,  F16K31/00 ,  F16K31/64 ,  F16K31/70 ,  F16K47/00 ,  F16L55/027

CPC classification number: F15B11/003 ,  F15B21/045 ,  F16K31/002 ,  F16K47/00 ,  F16L55/027 ,  F15B2211/20553 ,  F15B2211/30535 ,  F15B2211/31576 ,  F15B2211/324 ,  F15B2211/40515 ,  F15B2211/413 ,  F15B2211/41581 ,  F15B2211/428 ,  F15B2211/46 ,  F15B2211/50545 ,  F15B2211/8613

Abstract: A damping arrangement for damping the oscillations of valves which are controlled by pressure fluid and the control pressure conduits of which contain a throttle. A characteristic is that initial oscillations can be rapidly stabilized independently of the operating temperature of the pressure fluid. This is accomplished by the throttle having a throttle gap of which the height varies oppositely to the temperature of the pressure fluid so as to compensate fully or partially for changes in the hydraulic resistance that are occasioned by the temperature. The throttle gap is mostly traversed by laminar flow and consequently there is a high hydraulic throttling resistance even at low speeds of flow. The throttle is therefore also adapted effectively to damp small oscillations of the valve element so that the initial oscillations are rapidly stabilized.

Abstract translation: 一种阻尼装置，用于阻尼由压力流体控制的阀的振荡，并且其控制压力管道包含油门。 其特征是初始振荡可以独立于压力流体的操作温度而迅速稳定。 这是通过节气门实现的，其节气门间隙的高度与压力流体的温度相反地变化，以便完全或部分地补偿由温度引起的液压阻力的变化。 油门间隙主要是通过层流运动，因此即使在低流速下也存在高液压节流阻力。 因此，节气门也有效地适应于阻止阀元件的小振荡，使得初始振荡快速稳定。

公开(公告)号：WO2023007463A1

公开(公告)日：2023-02-02

申请号：PCT/IB2022/057079

申请日：2022-07-29

Applicant: DANFOSS A/S

Inventor： LARSEN, Sigurd ,  FOULLADPOUR, Ali

IPC: F25B41/335

Abstract: The present invention pertains to a thermal expansion valve for a heat exchanger with at least one header. The valve includes a valve block and a superheat defining mechanism. The valve block includes a high pressure inlet, a low pressure outlet, a first suction gas port and a second suction gas port. A contact surface for coupling the valve to the header includes at least one cylindrical portion of the valve block. The invention is also directed at a heat exchanger with a corresponding thermal expansion valve.

公开(公告)号：WO2022119698A1

公开(公告)日：2022-06-09

申请号：PCT/US2021/058932

申请日：2021-11-11

Applicant: DANFOSS A/S

Inventor： FAGUNDES, Tadeu Mendonca ,  YAN, Jin ,  SUN, Lin Xiang

IPC: F25B31/00

Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a cooling jacket including a plurality of perforations configured to cause refrigerant flowing through the perforations to form impingement jets and further configured to direct the impingement jets onto a surface adjacent a stator. The refrigerant compressor may be used in a heating, ventilation, and air conditioning (HVAC) chiller system, for example.

公开(公告)号：WO2021219474A1

公开(公告)日：2021-11-04

申请号：PCT/EP2021/060484

申请日：2021-04-22

Applicant: DANFOSS A/S

Inventor： ROOZBEH, Izadi-Zamanabadi ,  ANDREASEN, Glenn ,  REICHWALD, Peter

IPC: F25B1/10 ,  F25B5/02 ,  F25B49/02 ,  F25B45/00 ,  F25B41/39

Abstract: A method for monitoring a refrigerant charge in a vapour compression system (1) is disclosed, the vapour compression system (1) comprising a compressor unit (2), a heat rejecting heat exchanger (3), a high pressure expansion device (4), a receiver (5), at least one expansion device (9, 10), and at least one evaporator (11, 12) arranged in a refrigerant path. A change in net mass flow into or out of the receiver (5) and/or a change in net enthalpy flow into or out of the receiver (5) is detected, and a pressure inside the receiver (5) is monitored as a function of time, following the detected change in net mass flow and/or in net enthalpy flow. A time constant being representative for dynamics of the receiver (5) is derived, based on the monitored pressure as a function of time, and information regarding a refrigerant charge in the vapour compression system (1) is derived, based on the derived time constant.

公开(公告)号：WO2021122444A1

公开(公告)日：2021-06-24

申请号：PCT/EP2020/085951

申请日：2020-12-14

Applicant: DANFOSS A/S

Inventor： LARSEN, Lars Finn Sloth

IPC: F25B5/02 ,  F25B1/10 ,  F25B2400/13 ,  F25B2400/24 ,  F25B2600/02 ,  F25B2600/2513 ,  F25B2700/05

Abstract: A method for controlling a vapour compression system (1) comprising two or more evaporators (5, 12), each evaporator (5, 12) being arranged in thermal contact with a refrigerated volume, the refrigerated volumes storing goods of various types, and each evaporator (5, 12) receiving refrigerant via an expansion device (6, 13) is disclosed. In response to receipt of a load shedding command originating from a power grid (17), the vapour compression system (1) reduces a compressor capacity of the compressor unit. The refrigerated volumes are divided into at least two prioritized categories of refrigerated volumes, where a first category (18) includes refrigerated volumes storing goods of a temperature critical type, and a second category (19) includes refrigerated volumes storing goods of a temperature non-critical type. Refrigerant supply to the evaporator(s) (5, 12) being in thermal contact with the refrigerated volume(s) of the second category (19) is discontinued, and refrigerant supply to the evaporator(s) (5, 12) being in thermal contact with the refrigerated volume(s) of the first category (18) is continued. Thereby the vapour compression system (1) is capable of providing load shedding services for an extended period of time without compromising temperature critical storage.

公开(公告)号：WO2021022192A1

公开(公告)日：2021-02-04

申请号：PCT/US2020/044570

申请日：2020-07-31

Applicant: DANFOSS A/S

Inventor： SUN, Lin Xiang ,  PRITCHARD, Brandon Keith

IPC: F24F1/24 ,  F04D29/58 ,  F25B1/10 ,  F25B31/00 ,  H02K9/00 ,  H05K7/20

Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a first stage and a second stage downstream of the first stage, and a cooling line configured to cool power electronics. The cooling line is configured to be switched between a first mode and a second mode. The first mode is configured to dump refrigerant between the first stage and the second stage, and the second mode is configured to dump refrigerant upstream of the first stage.

公开(公告)号：WO2020259901A1

公开(公告)日：2020-12-30

申请号：PCT/EP2020/062227

申请日：2020-05-03

Applicant: DANFOSS A/S

Inventor： HARCK, Kurt

IPC: F25B9/00 ,  F25B41/06

Abstract: A method for creating a maximum capacity variance of an expansion valve (1) is described, the expansion valve (1) comprising a valve housing (2) having a valve seat (4) at an end of a valve seat channel (5) and a valve element (3, 3a, 3b, 3c). It should be possible to show a simple and cost-effective way to provide expansion valves having different maximum flow capacities. To this end, the variance is created by using a valve element (3, 3a, 3b, 3c) having a capacity controlling part (7, 7a, 7b, 7c) and a flow controlling part (6, 6a, 6b, 6c), wherein different capacity controlling parts (7, 7a, 7b, 7c) are used to create the maximum capacity variance.

公开(公告)号：WO2020127062A1

公开(公告)日：2020-06-25

申请号：PCT/EP2019/085364

申请日：2019-12-16

Applicant: DANFOSS A/S

Inventor： LARSEN, Sigurd ,  HARCK, Kurt ,  KRISTENSEN, Søren Sottrup ,  REESE, Birthe Nissen ,  VAGNSHOLDT, Charlotte Vibeke Pingel

IPC: F25B41/06 ,  F16K31/04

Abstract: Electric expansion valve (1) comprising a valve housing (12), a valve seat (2), a valve element (3) cooperating with the valve seat (2), a drive driving the valve element (3) and comprising a rotary motor (4) having an axis (17) of rotation. The valve element (3) is connected to the motor (4) and has a possibility of radial displacement between the rotor (6) and the valve element (3) with respect to the axis (17) of rotation. Such an expansion valve should ensure a long lifetime with low production costs. To this end the valve element (3) is connected to the motor (4) by means of a fixing element (16) which guarantees a defined position of the valve element (3) in axial direction while allowing the radial displacement between the axis (17) of rotation and the valve element (3).

公开(公告)号：WO2020126201A1

公开(公告)日：2020-06-25

申请号：PCT/EP2019/080497

申请日：2019-11-07

Applicant: DANFOSS A/S

Inventor： LARSEN, Sigurd

IPC: F25B41/06

Abstract: A valve(1), in particular expansion valve, is described comprising a valve element (6) driven by a rotary motor(7), wherein the motor (7) comprises a rotor (9) arranged inside a motor section (19) of a tube (14) and a stator (8)arranged outside the motor section (19) of the tube (14) and the rotor (9) is supported by a bearing(15), which bearing(15)is mounted with press fit in a bearing section (16) of the tube(14). Such a valve should have a small motor and a tube which can be produced with low costs. To this end the motor section (19) and the bearing section(17) comprise different diameters.