A VAPOUR COMPRESSION SYSTEM WITH AT LEAST TWO EVAPORATOR GROUPS
    21.
    发明申请
    A VAPOUR COMPRESSION SYSTEM WITH AT LEAST TWO EVAPORATOR GROUPS 审中-公开
    具有至少两个蒸发器组的蒸汽压缩系统

    公开(公告)号:WO2017029011A1

    公开(公告)日:2017-02-23

    申请号:PCT/EP2016/065575

    申请日:2016-07-01

    Applicant: DANFOSS A/S

    Abstract: A vapour compression system (1) comprising at least two evaporator groups (5a, 5b, 5c), each evaporator group (5a, 5b, 5c) comprising an ejector unit (7a, 7b, 7c), at least one evaporator (9a, 9b, 9c) and a flow control device (8a, 8b, 8c) controlling a flow of refrigerant to the at least one evaporator (9a, 9b, 9c). For each evaporator group (5a, 5b, 5c) the outlet of the evaporator (9a, 9b, 9c) is connected to a secondary inlet (12a, 12b, 12c) of the corresponding ejector unit (7a, 7b, 7c). The vapour compression system (1) can be controlled in an energy efficient and stable manner. A method for controlling the vapour compression system (1) is also disclosed.

    Abstract translation: 包括至少两个蒸发器组(5a,5b,5c)的蒸汽压缩系统(1),每个蒸发器组(5a,5b,5c)包括喷射器单元(7a,7b,7c),至少一个蒸发器(9a, 9b,9c)和控制制冷剂流向至少一个蒸发器(9a,9b,9c)的流量控制装置(8a,8b,8c)。 对于每个蒸发器组(5a,5b,5c),蒸发器(9a,9b,9c)的出口连接到相应的喷射器单元(7a,7b,7c)的次级入口(12a,12b,12c)。 蒸汽压缩系统(1)可以以节能和稳定的方式进行控制。 还公开了一种用于控制蒸汽压缩系统(1)的方法。

    A VAPOUR COMPRESSION SYSTEM WITH AN EJECTOR AND A NON-RETURN VALVE
    22.
    发明申请
    A VAPOUR COMPRESSION SYSTEM WITH AN EJECTOR AND A NON-RETURN VALVE 审中-公开
    具有喷射器和非返回阀的蒸汽压缩系统

    公开(公告)号:WO2016188777A1

    公开(公告)日:2016-12-01

    申请号:PCT/EP2016/060869

    申请日:2016-05-13

    Applicant: DANFOSS A/S

    Abstract: A vapour compression system (1) comprising a compressor unit (2), a heat rejecting heat exchanger (4), an ejector (5), a receiver (6), an expansion device (7) and an evaporator (8) is disclosed. The vapour compression system (1) further comprises a non-return valve (9) arranged in the refrigerant path between an outlet (17) of the evaporator (8) and an inlet (15) of the compressor unit (2). The outlet (17) of the evaporator (8) is connected to a secondary inlet (16) of the ejector (5) and to the inlet (15) of the compressor unit (2), via the non-return valve (9), and a gaseous outlet (12) of the receiver (6) is connected to a part of the refrigerant path which interconnects the non-return valve (9) and the inlet (15) of the compressor unit (2). The non-return valve (9) ensures automatic control of refrigerant flow from the evaporator (8) towards the compressor unit (2) and the secondary inlet (16) of the ejector (5), and from the receiver (6) towards the compressor unit (2).

    Abstract translation: 公开了一种包括压缩机单元(2),排热热交换器(4),喷射器(5),接收器(6),膨胀装置(7)和蒸发器(8)的蒸汽压缩系统(1) 。 蒸气压缩系统(1)还包括布置在蒸发器(8)的出口(17)和压缩机单元(2)的入口(15)之间的制冷剂路径中的止回阀(9)。 蒸发器(8)的出口(17)通过止回阀(9)连接到喷射器(5)的次级入口(16)和压缩机单元(2)的入口(15) ,并且接收器(6)的气体出口(12)连接到与止回阀(9)和压缩机单元(2)的入口(15)互连的制冷剂路径的一部分。 止回阀(9)确保自动控制从蒸发器(8)朝向喷射器(5)的压缩机单元(2)和次级入口(16)以及从接收器(6)朝向 压缩机单元(2)。

    METHOD FOR DETERMINING A TRANSIT TIME OF AN ULTRASONIC BURST, IN PARTICULAR IN AN ULTRASONIC FLOW METER, A FLOW METER
    23.
    发明申请
    METHOD FOR DETERMINING A TRANSIT TIME OF AN ULTRASONIC BURST, IN PARTICULAR IN AN ULTRASONIC FLOW METER, A FLOW METER 审中-公开
    用于确定超声波冲击波的过渡时间的方法,特别是超声波流量计,流量计

    公开(公告)号:WO2016180549A1

    公开(公告)日:2016-11-17

    申请号:PCT/EP2016/053748

    申请日:2016-02-23

    Applicant: DANFOSS A/S

    Inventor: JESPERSEN, Lars

    CPC classification number: G01F1/667 G01F23/296 G01H5/00

    Abstract: A method for determining a transit time (t t ) of an ultrasonic burst, in particular in an ultrasonic flow meter is described, said method comprising generating a first transmit signal having a first frequency and detecting a first receive signal, generating a second transmit signal having a second frequency different from the first frequency and detecting a second receive signal. Such method should allow to reliably detect the transit time with low costs. To this end a function of time based on characteristics of the two receive signals (10, 11) is used for determining the transit time.

    Abstract translation: 描述了一种用于确定超声波脉冲串的通过时间(tt)的方法,特别是在超声波流量计中,所述方法包括:产生具有第一频率的第一发射信号并检测第一接收信号,产生具有 与第一频率不同的第二频率并检测第二接收信号。 这种方法应能够以低成本可靠地检测运输时间。 为此,使用基于两个接收信号(10,11)的特性的时间功能来确定传送时间。

    REFRIGERANT VALVE ARRANGEMENT
    24.
    发明申请
    REFRIGERANT VALVE ARRANGEMENT 审中-公开
    制冷阀装置

    公开(公告)号:WO2016138974A1

    公开(公告)日:2016-09-09

    申请号:PCT/EP2015/078931

    申请日:2015-12-08

    Applicant: DANFOSS A/S

    CPC classification number: F25B41/04 F16K27/003 F16K27/02

    Abstract: A refrigerant valve arrangement (1) is shown comprising a housing (2) having an inlet (3) and an outlet (4) and defining a main flow direction (5) a first valve having a first valve axis (11), and a second valve having a second valve axis (17). Such a refrigerant valve arrangement should have a low pressure drop between inlet and outlet. To this end said first valve axis (11) encloses a first angle (a) smaller than 90° with said main flow direction (5) and/or said second valve axis (17) encloses a second angle (β) larger than 90° with said main flow direction (5).

    Abstract translation: 制冷剂阀装置(1)被示出为包括具有入口(3)和出口(4)并且限定主流动方向(5)的壳体(2),第一阀具有第一阀轴线(11) 第二阀具有第二阀轴线(17)。 这种制冷剂阀装置应当在入口和出口之间具有低压降。 为此,所述第一阀轴线(11)围绕所述主流动方向(5)和/或所述第二阀轴线(17)围绕大于90°的第二角度(β)包围小于90°的第一角度(a) 具有所述主流动方向(5)。

    A METHOD FOR CONTROLLING A VALVE ARRANGEMENT IN A VAPOUR COMPRESSION SYSTEM
    25.
    发明申请
    A METHOD FOR CONTROLLING A VALVE ARRANGEMENT IN A VAPOUR COMPRESSION SYSTEM 审中-公开
    一种用于控制蒸汽压缩系统中的阀装置的方法

    公开(公告)号:WO2016091418A1

    公开(公告)日:2016-06-16

    申请号:PCT/EP2015/073211

    申请日:2015-10-08

    Applicant: DANFOSS A/S

    Abstract: A method for controlling a valve arrangement (12), e.g. in the form of a three way valve, in a vapour compression system (1) is disclosed, the vapour compression system (1) comprising an ejector (6). The valve arrangement (12) is arranged to supply refrigerant to a compressor unit (2) from the gaseous outlet (11) of a receiver (7) and/or from the outlet of an evaporator (9). The vapour compression system (1) may be operated in a first mode of operation (summer mode) or in a second mode of operation (winter mode). When operated in the second mode of operation, it is determined whether or not conditions for operating the vapour compression system (1) in the first mode of operation are prevailing. If this is the case, the valve arrangement (12) is actively switched to the first mode of operation by closing a first inlet (13) towards the evaporator (7) and fully opening a second inlet (14) towards the receiver (7).

    Abstract translation: 一种用于控制阀装置(12)的方法, 在三通阀的形式中,公开了一种蒸气压缩系统(1),所述蒸汽压缩系统(1)包括喷射器(6)。 阀装置(12)被布置成从接收器(7)的气体出口(11)和/或从蒸发器(9)的出口向制冷剂单元(2)供应制冷剂。 蒸汽压缩系统(1)可以在第一操作模式(夏季模式)或第二操作模式(冬季模式)中操作。 当在第二操作模式下操作时,确定在第一操作模式中是否运行蒸气压缩系统(1)的条件。 如果是这种情况,则通过关闭朝向蒸发器(7)的第一入口(13)并朝向接收器(7)完全打开第二入口(14),阀装置(12)被主动切换到第一操作模式, 。

    SPOOL ARRANGEMENT
    27.
    发明申请
    SPOOL ARRANGEMENT 审中-公开
    SPOOL安排

    公开(公告)号:WO2016034299A1

    公开(公告)日:2016-03-10

    申请号:PCT/EP2015/064139

    申请日:2015-06-23

    Applicant: DANFOSS A/S

    Abstract: A spool arrangement 1 is described comprising a spool member (47) having a coil embedded in a spool housing (48) made of plastic material and protection means (2, 13, 28) comprising at least two parts together forming a receiving volume (46), said spool member (47) being located in said receiving volume. Such a spool arrangement (1) should be used in an environment in which there is a risk of explosions. To this end said parts form protective walls on all sides of said receiving volume (46)

    Abstract translation: 卷轴装置1被描述为包括一个卷轴构件(47),其具有嵌入在由塑料材料制成的卷轴壳体(48)中的线圈和保护装置(2,13,28),该装置包括至少两个部分,形成接收容积 ),所述卷轴构件(47)位于所述接收体积中。 这种阀芯装置(1)应用于存在爆炸危险的环境中。 为此,所述部件在所述接收容积(46)的所有侧面上形成保护壁,

    A METHOD FOR ESTIMATING AND/OR CONTROLLING A TEMPERATURE OF FOODSTUFF STORED IN A REFRIGERATED CAVITY
    28.
    发明申请
    A METHOD FOR ESTIMATING AND/OR CONTROLLING A TEMPERATURE OF FOODSTUFF STORED IN A REFRIGERATED CAVITY 审中-公开
    用于估算和/或控制存储在制冷空气中的食品温度的方法

    公开(公告)号:WO2015165937A1

    公开(公告)日:2015-11-05

    申请号:PCT/EP2015/059292

    申请日:2015-04-29

    Applicant: DANFOSS A/S

    CPC classification number: F25D29/00 F25B2600/2513 F25D2500/04 F25D2700/16

    Abstract: A method for estimating and/or controlling a temperature of foodstuff stored in a refrigerated cavity of a refrigeration system is disclosed. A time constant for the temperature of the foodstuff is established, said time constant being determined based on a time interval between a relatively large change of opening degree of an expansion valve and until variance of the opening degree of the expansion valve decreases to a relatively low variance. The time constant is applied to a low pass filter, said low pass filter providing a relation between the temperature of the foodstuff and the air temperature, and the low pass filter is applied to the monitored air temperature, thereby obtaining an estimate for the temperature of the foodstuff stored in the refrigerated cavity.

    Abstract translation: 公开了一种用于估计和/或控制存储在制冷系统的冷藏空腔中的食品的温度的方法。 确定食品温度的时间常数,所述时间常数基于膨胀阀的开度相对大的变化与膨胀阀的开度的变化之间的时间间隔确定为相对较低 方差。 将时间常数应用于低通滤波器,所述低通滤波器提供食品的温度与空气温度之间的关系,并且将低通滤波器应用于监测的空气温度,从而获得对 存储在冷藏腔中的食物。

    AN EXPANSION VALVE WITH A VARIABLE ORIFICE AREA
    29.
    发明申请
    AN EXPANSION VALVE WITH A VARIABLE ORIFICE AREA 审中-公开
    具有可变区域的膨胀阀

    公开(公告)号:WO2015001465A1

    公开(公告)日:2015-01-08

    申请号:PCT/IB2014/062718

    申请日:2014-06-30

    Applicant: DANFOSS A/S

    Abstract: An expansion valve (1) for a vapour compression system, the valve (1) comprising a first valve part (5) having an outlet orifice (7) and a piston (8) movable inside the outlet orifice (7) in response to a differential pressure across the expansion valve (1), controlling a fluid flow through the first valve part (5). A cross-sectional flow area of the outlet orifice (7) between a circumference at an inner surface of the outlet orifice (7) and a circumference at an outer surface of the piston (8) varies as a function of the position of the piston (8) relative to the outlet orifice (7). A first cross-sectional flow area is defined at a first differential pressure, and a second cross-sectional flow area is defined at a second differential pressure, where the first cross-sectional flow area is smaller than the second cross-sectional flow area, and the first differential pressure is lower than the second differential pressure.

    Abstract translation: 一种用于蒸气压缩系统的膨胀阀(1),所述阀(1)包括具有出口孔(7)的第一阀部分(5)和可在所述出口孔(7)内移动的活塞(8) 通过膨胀阀(1)两端的差压,控制通过第一阀部(5)的流体流。 出口孔(7)在出口孔(7)的内表面周围与活塞(8)外表面周长之间的横截面流动面积作为活塞位置的函数而变化 (8)相对于出口孔(7)。 在第一差压下限定第一横截面流动面积,并且第二横截面流动区域被限定在第二截面流动面积小于第二横截面流动面积的第二压差下, 并且第一压差低于第二压差。

    SOLENOID VALVE WITH PROGRESSIVE SPRING INSIDE ANCHOR
    30.
    发明申请
    SOLENOID VALVE WITH PROGRESSIVE SPRING INSIDE ANCHOR 审中-公开
    电磁阀,带有弹簧弹簧

    公开(公告)号:WO2014207684A1

    公开(公告)日:2014-12-31

    申请号:PCT/IB2014/062609

    申请日:2014-06-26

    Applicant: DANFOSS A/S

    Inventor: JENSEN, Leo Finn

    CPC classification number: F16K31/0655 F16F1/047 F16K31/404

    Abstract: A solenoid valve (1, 101) is provided comprising a housing (2, 102), having an inlet and an outlet (6), wherein the solenoid valve also comprises a valve element (9, 109) and a valve seat (10, 110). To provide a solenoid valve to be used with high maximum operating pressure differences between inlet and outlet, the solenoid valve comprises at least one progressive spring (24), wherein the valve element is forced by the at least one progressive spring. Thereby, the spring force acting on the valve element in the closed position of the valve may be decreased, while still retaining a large spring force in the opened position of the solenoid valve.

    Abstract translation: 提供一种电磁阀(1,101),其包括具有入口和出口(6)的壳体(2,102),其中所述电磁阀还包括阀元件(9,109)和阀座(10,102) 110)。 为了提供一种用于入口和出口之间的高最大工作压力差的电磁阀,电磁阀包括至少一个渐进弹簧(24),其中阀元件被至少一个渐进弹簧强制。 因此,在阀的关闭位置作用在阀元件上的弹簧力可以减小,同时在电磁阀的打开位置保持大的弹簧力。

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