Refrigerating Apparatus
    2.
    发明申请
    Refrigerating Apparatus 审中-公开
    制冷装置

    公开(公告)号:US20080110199A1

    公开(公告)日:2008-05-15

    申请号:US11794319

    申请日:2005-12-22

    IPC分类号: F25B1/00

    摘要: The loss of refrigerant pressure which is caused in a return-side interconnecting piping line (19) comprising return-side interconnecting piping lines respectively extending from outlet ports (24, 34, 44) of single-stage side utilization units (12, 13, 14) to an inlet port (61) of a heat source unit (11) is set such that the lowest valued refrigerant pressure loss is caused by a said return-side interconnecting piping line of the return-side interconnecting piping line (19) that is connected to the lowest of the single-stage side utilization units (12, 13, 14) in compartment preset temperature.

    摘要翻译: 在包括分别从单级侧利用单元(12,13,13)的出口(24,34,44)延伸的回流侧互连管道的回流侧互连管路(19)中引起的制冷剂压力的损失, 14)到热源单元(11)的入口(61)被设定为使得最低值的制冷剂压力损失由返回侧互连管道(19)的所述返回侧互连管道引起, 在室内预设温度下连接到最低级的单级侧利用单元(12,13,14)。

    Refrigerating apparatus
    3.
    发明申请
    Refrigerating apparatus 审中-公开
    制冷装置

    公开(公告)号:US20070074523A1

    公开(公告)日:2007-04-05

    申请号:US10577011

    申请日:2005-09-02

    IPC分类号: F25D21/06 G05D23/32 F25D21/00

    摘要: A refrigerator circuit (110) and a freezing circuit (30) are connected to an outdoor circuit (40) in parallel in a refrigerant circuit (20), and a freezer circuit (130) and a booster circuit (140) are connected in series in the freezing circuit (30). The booster circuit (140) includes a booster compressor (141) and three-way switching mechanisms (142, 160). During cooling operation of a freezing heat exchanger (131), first operation is performed in the three-way switching mechanisms (142, 160) so that the refrigerant evaporated in the freezing heat exchanger (131) is compressed in the booster compressor (141) and is sucked into a variable capacity compressor (41). During defrosting of the freezing heat exchanger (131), second operation is performed in the three-way switching mechanisms (142, 160) so that the refrigerant evaporated in the refrigeration heat exchanger (111) is compressed in the booster compressor (141), is supplied to the freezing heat exchanger (131), and then, is sent back to the refrigeration heat exchanger (111).

    摘要翻译: 冰箱回路(110)和冷冻回路(30)在制冷剂回路(20)中并联连接到室外回路(40),冷冻回路(130)和升压回路(140)串联连接 在冷冻回路(30)中。 升压电路(140)包括增压压缩机(141)和三通切换机构(142,160)。 在冷冻热交换器(131)的制冷运转时,在三通切换机构(142,160)中进行第一操作,使得在冷冻热交换器(131)中蒸发的制冷剂在增压压缩机141中被压缩, 并被吸入变容量压缩机(41)。 在冷冻热交换器(131)的除霜期间,在三通切换机构(142,160)中进行第二操作,使得在增压压缩机(141)中在制冷用热交换器(111)中蒸发的制冷剂被压缩, 供给到冷冻热交换器(131),然后被送回制冷用热交换器(111)。

    Supercooling apparatus
    5.
    发明申请
    Supercooling apparatus 审中-公开
    过冷却装置

    公开(公告)号:US20070022777A1

    公开(公告)日:2007-02-01

    申请号:US10570879

    申请日:2005-06-09

    IPC分类号: F25B1/00 F25B25/00

    摘要: A subcooling unit (200) includes a refrigerant passage (205) connected to liquid side communication pipes (21, 22) of a refrigerating apparatus (10). When a subcooling compressor (221) is operated, subcooling refrigerant circulates in the subcooling refrigerant circuit (220) to perform a refrigeration cycle, thereby cooling refrigerant of the refrigerating apparatus (10) which flows in the refrigerant passage (205). A controller (240) of the subcooling unit (200) receives the detection value of a suction pressure sensor (234) and a refrigerant temperature sensor (236). The controller (240) utilizes input signals from the sensors (234, 236) to control driving operation of the subcooling compressor (221) on the basis of information obtained within the subcooling unit (200). Thus, the operation of the subcooling compressor (221) can be controlled without sending and receiving a singal to and from the refrigerating apparatus (10) to which the subcooling unit (200) is incorporated.

    摘要翻译: 过冷却单元(200)包括与制冷装置(10)的液体侧连通管(21,22)连接的制冷剂通路(205)。 当过冷却压缩机221运转时,过冷却制冷剂在过冷却制冷剂回路220中循环,进行制冷循环,从而冷却在制冷剂通路205中流动的制冷装置10的制冷剂。 过冷却单元(200)的控制器(240)接收吸入压力传感器(234)和制冷剂温度传感器(236)的检测值。 控制器(240)利用来自传感器(234,236)的输入信号,根据在过冷却单元(200)内获得的信息来控制过冷却压缩机(221)的驱动操作。 因此,可以控制过冷却压缩机(221)的运转,而不会向从过冷却装置(200)装入的制冷装置(10)发送和接收单体。

    Subcooling Apparatus
    6.
    发明申请
    Subcooling Apparatus 审中-公开
    过冷却装置

    公开(公告)号:US20080229769A1

    公开(公告)日:2008-09-25

    申请号:US10571940

    申请日:2005-06-09

    IPC分类号: F25B1/00

    摘要: A subcooling unit (200) includes a refrigerant passage (205) connected to liquid side communication pipes (21, 22) of a refrigerating apparatus (10). When a subcooling compressor (221) is operated, subcooling refrigerant circulates in a subcooling refrigerant circuit (220) to perform a refrigeration cycle, thereby cooling refrigerant of the refrigerating apparatus (10) which flows in the refrigerant passage (205). A controller (240) of the subcooling unit (200) receives the detection value of an outside air temperature sensor (231) or a refrigerant temperature sensor (236). The controller (240) controls the operation of the subcooling compressor (221) with the use of only information obtainable within the subcooling unit (200).

    摘要翻译: 过冷却单元(200)包括与制冷装置(10)的液体侧连通管(21,22)连接的制冷剂通路(205)。 当过冷却压缩机221运转时,过冷却制冷剂在过冷却制冷剂回路220中循环,进行制冷循环,从而冷却在制冷剂通路205流动的制冷装置10的制冷剂。 过冷却单元(200)的控制器(240)接收外部空气温度传感器(231)或制冷剂温度传感器(236)的检测值。 控制器(240)仅使用在过冷却单元(200)内可获得的信息来控制过冷却压缩机(221)的操作。

    Refrigeration apparatus
    7.
    发明授权
    Refrigeration apparatus 失效
    制冷装置

    公开(公告)号:US07752864B2

    公开(公告)日:2010-07-13

    申请号:US11659121

    申请日:2005-08-01

    IPC分类号: F25B13/00

    CPC分类号: F25B13/00 F25B2313/0231

    摘要: A refrigeration apparatus (1) is provided with a refrigerant circuit (1E) along which are connected a compressor (2), an outdoor heat exchanger (4), an expansion mechanism, an indoor heat exchanger (41) for providing room air conditioning, and a cooling heat exchanger (45, 51) for providing storage compartment cooling. The refrigerant circuit (1E) includes a discharge side three way switch valve (101) for varying the flow rate of a portion of the refrigerant which is discharged out of the compressor (2) and then distributed to the indoor heat exchanger (41) and the outdoor heat exchanger (4) during a heat recovery operation mode in which the indoor heat exchanger (41) and the outdoor heat exchanger (4) operate as condensers. As a result of such arrangement, even when the amount of heat obtained in the cooling heat exchanger (45, 51) exceeds the amount of heat required in the indoor heat exchanger (41), surplus heat is discharged without excessive decrease in the discharge pressure of the compressor (2).

    摘要翻译: 制冷装置(1)具备:制冷剂回路(1E),连接有压缩机(2),室外热交换器(4),膨胀机构,室内空调用的室内热交换器(41) 以及用于提供储藏室冷却的冷却热交换器(45,51)。 制冷剂回路(1E)包括排出侧三通切换阀(101),用于改变从压缩机(2)排出的一部分制冷剂的流量,然后分配到室内热交换器(41)和 在室内热交换器(41)和室外热交换器(4)作为冷凝器运转的热回收运转模式中的室外热交换器(4)。 作为这种结构的结果,即使在冷却热交换器(45,51)中获得的热量超过室内热交换器(41)所需的热量的情况下,也可以排出多余的热量而不会使排出压力过度降低 的压缩机(2)。

    REFRIGERATION SYSTEM
    8.
    发明申请
    REFRIGERATION SYSTEM 审中-公开
    制冷系统

    公开(公告)号:US20090120113A1

    公开(公告)日:2009-05-14

    申请号:US12352327

    申请日:2009-01-12

    IPC分类号: F25B1/00

    摘要: When a guard timer of a compressor (141) expires, an R2 signal from a control section (140) of an outdoor unit is turned on (Action I). If a control section (120) of a freezer unit recognizes from an inside temperature detected by a temperature sensor (124) that the R2 signal is turned on and a request for a shift to a freezer thermo-on state is raised (Action II), a freezer electromagnetic valve (121) is opened (Action III). In general, when the electromagnetic valve (121) is opened, it is supposed that an increase in refrigerant suction pressure is detected by a pressure sensor (146) and then the compressor (141) is actuated. However, if an outside air temperature is low, the refrigerant suction pressure remains lower than a predetermined value. Therefore, the control section (120) actuates a booster compressor (131) (Action IV) to raise the refrigerant suction pressure of the compressor (141).

    摘要翻译: 当压缩机(141)的保护定时器期满时,来自室外机的控制部(140)的R2信号被接通(动作I)。 如果冷冻装置的控制部(120)从由温度传感器(124)检测到的内部温度识别出R2信号被接通并且提出向冷冻热接通状态的转换的请求(动作II) ,打开冷冻电磁阀(121)(动作III)。 通常,当电磁阀(121)打开时,假设通过压力传感器(146)检测制冷剂吸入压力的增加,然后压缩机(141)被致动。 然而,如果外部空气温度低,则制冷剂吸入压力保持低于预定值。 因此,控制部(120)启动增压压缩机(131)(动作IV),以提高压缩机141的制冷剂吸入压力。

    Refrigeration apparatus
    9.
    发明授权
    Refrigeration apparatus 失效
    制冷装置

    公开(公告)号:US08408018B2

    公开(公告)日:2013-04-02

    申请号:US12675624

    申请日:2008-08-28

    IPC分类号: F25B1/00 F25B49/00 F25B43/02

    摘要: A refrigeration device includes a switching valve control section for outputting a switching signal for controlling a four-way switching valve to a predetermined switching state when starting a compression mechanism; and a switching determination section which, when starting only a first compressor as a start-up of the compression mechanism, outputs a low differential pressure signal if a differential pressure between a high-pressure port and a low-pressure port in the four-way switching valve falls below a determination value in a determination operation after the switching signal being outputted by the switching valve control section. After the switching determination section outputs the low differential pressure signal, a capacity control section starts a second compressor.

    摘要翻译: 制冷装置包括切换阀控制部,其在开始压缩机构时,将用于将四通切换阀控制到规定切换状态的切换信号; 以及切换确定部,当仅起动作为压缩机构的启动的第一压缩机时,如果在四通道中的高压口和低压端口之间的压差,则输出低压差信号 在切换阀控制部输出切换信号之后的判定动作中,切换阀低于判定值。 在切换判定部输出低压差信号之后,容量控制部启动第二压缩机。

    REFRIGERATION SYSTEM
    10.
    发明申请
    REFRIGERATION SYSTEM 审中-公开
    制冷系统

    公开(公告)号:US20100326125A1

    公开(公告)日:2010-12-30

    申请号:US12921026

    申请日:2009-03-05

    IPC分类号: F25B43/02 F25B1/10

    摘要: In a refrigeration system in which a compressor mechanism including a plurality of compressors, oil separators (37a, 37b) are provided at a discharge pipe (56a) of a first compressor (14a) and a discharge pipe (56b) of a second compressor (14b), respectively. An oil return passageway (32) for returning refrigerating machine oil from the oil separators (37a, 37b) to a compressor mechanism (40) is configured to combine streams of refrigerating machine oil separated in the oil separators (37a, 37b) and distribute the combined refrigerating machine oil to the first compressor (14a) and the second compressor (14b).

    摘要翻译: 在包括多个压缩机的压缩机构的制冷系统中,在第一压缩机14a的排出管(56a)和第二压缩机(56b)的排出管(56b)上设置有油分离器(37a,37b) 14b)。 用于将冷冻机油从油分离器(37a,37b)返回到压缩机构(40)的回油通路(32)构成为将分离在油分离器(37a,37b)中的冷冻机油的流体组合, 将组合的冷冻机油与第一压缩机14a和第二压缩机14b共用。