公开(公告)号：WO1996014546A1

公开(公告)日：1996-05-17

申请号：PCT/DK1995000433

申请日：1995-11-02

Applicant: DANFOSS A/S ,  BENDTSEN, Christian ,  SCHMIDT, Frede

Inventor： DANFOSS A/S

IPC: F25D21/00

CPC classification number: F25D21/008 ,  F25B5/02 ,  F25B2400/22 ,  F25D17/02

Abstract: A method for defrosting a refrigeration system (38) makes provison for partial defrosting of the cooling surface (39) to be carried out at relatively short intervals, and for full defrosting to be carried out at longer intervals. To that end an associated control unit (41) has four timers (44 to 47) which determine the switching on and switching off times of the defrosting processes. In this manner the interval between successive full defrostings can be considerably increased.

Abstract translation: 一种用于对制冷系统（38）进行除霜的方法使得要以相对短的间隔进行冷却表面（39）的部分除霜，并且以更长的间隔进行完全除霜。 为此，相关联的控制单元（41）具有四个定时器（44至47），其确定除霜过程的接通和关闭时间。 以这种方式，连续完全除霜之间的间隔可以大大增加。

公开(公告)号：WO1998022762A1

公开(公告)日：1998-05-28

申请号：PCT/DK1997000528

申请日：1997-11-17

Applicant: DANFOSS A/S ,  SCHMIDT, Frede ,  JENSEN, Kenn, Sonder

Inventor： DANFOSS A/S

IPC: F25B41/06

CPC classification number: F25B41/062 ,  F25B2341/0681 ,  F25B2500/05 ,  F25B2600/21

Abstract: A process for controlling a refrigeration system, as well as the refrigeration system and a new expansion valve for the refrigeration system. An electronic regulator is used to operate a sensor system having a device for applying heat power to the sensor system in direct dependence on sensed superheat of the refrigerant leaving the evaporator. By locating the sensing system in communication with liquid refrigerant upstream of the evaporator, heat transfer to the liquid refrigerant is utilized for operation of the sensor system rather than heat transfer to the superheat, resulting in a far more stable and efficient refrigeration control.

Abstract translation: 一种用于控制制冷系统的方法，以及用于制冷系统的制冷系统和新的膨胀阀。 电子调节器用于操作传感器系统，该传感器系统具有直接依赖于离开蒸发器的制冷剂的感测过热来向传感器系统施加热能的装置。 通过将传感系统定位成与蒸发器上游的液体制冷剂连通，利用传热到液体制冷剂的传感器系统的运行而不是传热到过热器，导致更稳定和高效的制冷控制。

公开(公告)号：WO1996012148A1

公开(公告)日：1996-04-25

申请号：PCT/DK1995000402

申请日：1995-10-11

Applicant: DANFOSS A/S ,  SCHMIDT, Frede

Inventor： DANFOSS A/S

IPC: F25B41/06

CPC classification number: F25B41/062 ,  F25B2341/065 ,  F25B2600/21 ,  F25B2600/2513 ,  F25B2700/21174 ,  F25B2700/21175 ,  G05B11/42 ,  G05D23/1931 ,  Y02B30/72

Abstract: A control arrangement for the superheat temperature of at least one evaporator (8) of a refrigeration system having a refrigerant circulation, in which at least one compressor, a condenser, an electronically controlled expansion valve (7) and the evaporator (8) are arranged in series, contains a measuring device (9, 10, 11) connected to the evaporator (8), which device produces a measurement signal (Tü) that is a measure of the superheat temperature of the refrigerant in the evaporator (8), a comparator (1) to which the measurement signal (Tü) and a desired superheat temperature signal (Tüs) are arranged to be supplied, and a PID controller (2) arranged between the comparator (1) and the expansion valve (7). For rapid compensation of changes in the superheat temperature, a control signal (S) proportional to the evaporation temperature (To) of the refrigerant is arranged to be supplied additionally to the PID controller (2).

Abstract translation: 具有制冷剂循环的制冷系统的至少一个蒸发器（8）的过热温度的控制装置，其中至少一个压缩机，冷凝器，电子控制膨胀阀（7）和蒸发器（8）布置在其中 串联地包含连接到蒸发器（8）的测量装置（9,10,11），该装置产生作为蒸发器（8）中制冷剂的过热温度的量度的测量信号（Tü）， 配置有测量信号（Tü）和期望的过热温度信号（Tüs）的比较器（1）以及设置在比较器（1）和膨胀阀（7）之间的PID控制器（2）。 为了快速补偿过热温度的变化，与PID控制器（2）另外提供与制冷剂的蒸发温度（To）成比例的控制信号（S）。

公开(公告)号：WO1996007065A1

公开(公告)日：1996-03-07

申请号：PCT/DK1995000294

申请日：1995-07-07

Applicant: DANFOSS A/S ,  SCHMIDT, Frede

Inventor： DANFOSS A/S

IPC: F25B41/06

CPC classification number: F25B41/062 ,  F25B5/02 ,  F25B49/022 ,  F25B2341/065 ,  F25B2400/075 ,  F25B2400/22 ,  F25B2600/21 ,  F25B2600/2513 ,  Y02B30/72

Abstract: A control arrangement for cooling of apparatus comprising a compressor (1), a condenser (2) and at least one branch (3) with an expansion valve (4) and an evaporator (5) in series, contains a controller (6), a superheat temperature measuring device (8) and an ambient temperature sensor (7). The controller (6) controls the expansion valve (4) for maintaining the superheat temperature substantially at the desired value. The flow of coolant to the evaporator (5) is controlled by the signal from the temperature sensor (7) for maintaining the ambient temperature constant. The controller (6) operates continuously and in two operating modes in which in the first mode the superheat temperature is controlled to the maximum admissible state of fill of liquid coolant in the evaporator (5), and is switchable to a second mode in which the state of fill of liquid coolant is controlled by the expansion valve (4).

Abstract translation: 用于冷却包括压缩机（1），冷凝器（2）和具有膨胀阀（4）和蒸发器（5）的至少一个分支（3）的装置的控制装置包括控制器（6） 过热温度测量装置（8）和环境温度传感器（7）。 控制器（6）控制膨胀阀（4），用于将过热温度保持在基本上保持在期望值。 通过来自温度传感器（7）的信号来控制冷却剂到蒸发器（5）的流动，以保持环境温度恒定。 控制器（6）在两种操作模式中连续操作，其中在第一模式中过热温度被控制到蒸发器（5）中液体冷却剂的最大允许状态，并且可切换到第二模式，其中 液体冷却剂的填充状态由膨胀阀（4）控制。

公开(公告)号：WO1998022763A1

公开(公告)日：1998-05-28

申请号：PCT/EP1997006357

申请日：1997-11-14

Applicant: DANFOSS A/S ,  JENSEN, Kenn, Sonder ,  SCHMIDT, Frede

Inventor： DANFOSS A/S

IPC: F25B41/06

CPC classification number: F25B41/062 ,  F25B2341/0681 ,  F25B2500/05 ,  F25B2600/21

Abstract: In a process for regulating a refrigerating system (1) using an expansion valve (4), one side of the regulating member is pressed by the pressure of refrigerant at the evaporator side and the other side of the regulating member is pressed by the vapour pressure of a sensor system (22) whose sensor temperature is determined by the refrigerant saturation temperature and by the heat supplied by a heating element (27). Heat supply is regulated depending on a measurement value (overheating or liquid level). Also disclosed is a refrigerating system (1) regulated in this manner and an expansion valve (4) as essential component of such a system. An improved, economic and universally applicable regulation can thus be obtained.

Abstract translation: 一种控制制冷系统（1）的方法，由所述制冷剂的饱和温度使用的膨胀阀（4），其中，从所述蒸发器侧的制冷剂压力的致动器和从一个传感器系统的蒸汽压力的致动器的另一侧的所述一侧（22）被加载，传感器温度和 通过热供给通过加热元件（27）来确定。 供热以依赖控制的测定值（过热或液面）。 此外，提供了一种制冷系统（1），用于这种方案的实现和膨胀阀（4）作为必要成分。 这样就可以实现对成本和通用的方式改进的控制。

公开(公告)号：WO1996026399A1

公开(公告)日：1996-08-29

申请号：PCT/DK1996000073

申请日：1996-02-19

Applicant: DANFOSS A/S ,  SCHMIDT, Frede

Inventor： DANFOSS A/S

IPC: F25B41/06

CPC classification number: F25B41/062 ,  F25B2600/21 ,  F25B2600/2513 ,  F25B2700/21174 ,  F25B2700/21175 ,  G05D23/1919

Abstract: In a method for controlling the superheat temperature (Tü) of the refrigerant in an evaporator arrangement (1) of a refrigeration system or heat pump system (1-4), the evaporator arrangement (1), a compressor arrangement (2), a condenser (3) and a controllable expansion valve arrangement (4) are arranged in succession in a closed circuit. The superheat temperature (Tü) is controlled in dependence on a comparison between desired and actual values. The desired value (W2) of the superheat temperature (Tü is varied automatically in dependence on the difference (d) from a reference value (W1) of a periodically determined function (S) of a number of sampled values of a temperature (T1; T2) of the refrigerant with the aim of a stable control of the superheat temperature (Tü). To achieve optimum filling and to optimize the superheating in such systems, provision is made for the said function (S) to characterize the variability of a number of sampled values of the temperature (T2) of the refrigerant at the output of the evaporator arrangement (4) about a mean value of the sampled values.

Abstract translation: 在用于控制制冷系统或热泵系统（1-4）的蒸发器装置（1）中的制冷剂的过热温度（Tü）的方法中，蒸发器装置（1），压缩机装置（2）， 冷凝器（3）和可控制的膨胀阀装置（4）被连续布置在闭合回路中。 过热温度（Tü）根据期望值和实际值之间的比较进行控制。 过热温度（Tü）的期望值（W2）根据与温度（T1; ...）的采样值的周期性确定函数（S）的参考值（W1）的差（d）自动变化。 T2），以便稳定地控制过热温度（Tü），为了实现最佳填充并优化这种系统的过热，规定了所述功能（S）来表征数字的变异性 在蒸发器装置（4）的输出处的制冷剂的温度（T2）的采样值约为采样值的平均值。

公开(公告)号：WO1997037137A1

公开(公告)日：1997-10-09

申请号：PCT/DK1997000138

申请日：1997-03-26

Applicant: DANFOSS A/S

Inventor： DANFOSS A/S ,  COLLINS, David ,  JORGENSEN, Helge ,  MABIT, Xavier ,  CHRISTENSEN, Carsten

IPC: F15B13/02

CPC classification number: F15B13/0402 ,  F15B13/0416 ,  Y10T137/86879 ,  Y10T137/87185

Abstract: A hydraulic control valve for controlling flow between a pump, a hydraulic device, and a vessel containing hydraulic fluid. The control valve has an elongated valve slide which is slidably mounted in an elongated valve housing. The valve has three positions, a central neutral position, a float position axially offset in one direction from the neutral position and a constant pressure position axially offset in the opposite direction from the neutral position. In the neutral position, flow of hydraulic fluid to the hydraulic device is inhibited. In the float position, connection is such that a raised device, such as a hydraulically operated bucket, is lowered slowly by gravity until it rests on the ground or another object. In the constant pressure position, the valve connects pump pressure to the load sensing circuit to facilitate, for example, shaking of a bucket of a piece of earth moving equipment.

Abstract translation: 一种用于控制泵，液压装置和含有液压流体的容器之间的流动的液压控制阀。 控制阀具有细长的阀滑动件，其可滑动地安装在细长的阀壳体中。 阀具有三个位置，中心中立位置，从中立位置沿一个方向轴向偏移的浮子位置和在与中立位置相反的方向轴向偏移的恒定位置。 在中立位置，液压流体流向液压装置被阻止。 在浮动位置，连接使得诸如液压操作的铲斗之类的升高的装置通过重力被缓慢地降低，直到其搁置在地面或另一物体上。 在恒压位置，阀将泵压力连接到负载感测电路，以便于例如震动一块土方机械的铲斗。

公开(公告)号：WO1997032363A1

公开(公告)日：1997-09-04

申请号：PCT/DK1997000076

申请日：1997-02-20

Applicant: DANFOSS A/S ,  KNUDSEN, Ole, Friis

Inventor： DANFOSS A/S

IPC: H01R13/52

CPC classification number: H01R13/521 ,  H01R13/5216 ,  Y10S439/936

Abstract: In order, in a simple and reliable manner, to effect a seal in the region of the lead feedthroughs in a housing for an electrical device, in particular a measuring transducer, through the wall (2) of which housing at least one electrical lead (3) is introduced into the housing (1) and is sealed against the wall (2) by a sealant, tar (6) is used as the sealant.

Abstract translation: 为了以简单和可靠的方式，在用于电气装置的壳体（特别是测量换能器）中的引线馈通区域中的密封件通过其中容纳至少一个电引线的壁（2） 3）被引入到壳体（1）中并且通过密封剂与壁（2）密封，焦油（6）用作密封剂。

公开(公告)号：WO1997028894A1

公开(公告)日：1997-08-14

申请号：PCT/DK1997000045

申请日：1997-02-05

Applicant: DANFOSS A/S ,  LARSEN, Ulrik, Darling

Inventor： DANFOSS A/S

IPC: B01F05/04

CPC classification number: B01F13/0064 ,  B01F5/0453 ,  B01F5/0682 ,  B01F13/0093 ,  B01F13/0094 ,  B01J19/0093 ,  B01J2219/00783 ,  B01J2219/00828 ,  B01J2219/00889 ,  Y10S366/03

Abstract: A micromixer (5) is disclosed having a mixing chamber that is connected to a first inlet channel arrangement, into the wall (6) of which mixing chamber there opens a second inlet channel arrangement by way of at least one opening (10). Such a micromixer is intended to render possible rapid and predeterminable mixing of fluids. For that purpose, there is arranged on the wall (6) adjacent to the opening (10) at least one projection (7) that extends transversely to the direction of flow, the extent of which is greater than the extent of the opening transverse to the direction of flow.

Abstract translation: 公开了一种混合器（5），其具有连接到第一入口通道装置的混合室，其中混合室通过至少一个开口（10）打开第二入口通道布置。 这种微混合器旨在提供流体的可能的快速和可预定的混合。 为此目的，布置在与开口（10）相邻的壁（6）上，至少一个突出部（7）横向于流动方向延伸，其大小大于横向于 流动方向。

公开(公告)号：WO1997021031A1

公开(公告)日：1997-06-12

申请号：PCT/DK1996000511

申请日：1996-12-05

Applicant: DANFOSS A/S ,  KLAUSEN, Jorn, Holger ,  JORGENSEN, Tage ,  MADSEN, Ingvard, Mosby ,  FROSLEV, Peter

Inventor： DANFOSS A/S

IPC: F04C02/10

CPC classification number: F04C2/082 ,  F04C2/102 ,  F05C2225/04

Abstract: The invention concerns a corrosion proof pump or motor with an inner, outside toothed tooth wheel rotating around a first centre, whereby the inner tooth wheel engages an outer, inside toothed tooth wheel rotating around a second centre which is displaced in relation to the first centre, whereby both the inner and the outer tooth wheels rotate between side plates, and the outer tooth wheel rotates in an outer bearing which is at the same time a distance piece between the side plates. The pump or motor is especially suited for media with a low viscosity, in that the side plates and/or the outer bearing and/or at least one of the tooth wheels consist of a binding material containing reinforcement and/or wear resistance improving and/or friction reducing materials.

Abstract translation: 本发明涉及一种防腐泵或电动机，其具有围绕第一中心旋转的内外齿齿轮，由此内齿轮接合围绕相对于第一中心移位的第二中心旋转的外齿内齿齿轮 由此内齿轮和外齿轮两者在侧板之间旋转，并且外齿轮在外侧轴承中旋转，外轴承同时是侧板之间的距离片。 泵或马达特别适合于具有低粘度的介质，因为侧板和/或外部轴承和/或至少一个齿轮由包含增强和/或耐磨性改进的/ 或减摩材料。