Refrigerating device utilizing carbon dioxide as a refrigerant
    1.
    发明授权
    Refrigerating device utilizing carbon dioxide as a refrigerant 有权
    使用二氧化碳作为制冷剂的制冷装置

    公开(公告)号:US06427479B1

    公开(公告)日:2002-08-06

    申请号:US09659917

    申请日:2000-09-12

    IPC分类号: F25B4300

    摘要: A refrigerating device is provided whose burden on the environment is small, and in which a high amount of heat can be removed, and in which return of refrigerating device oil to a compressor is good. In the refrigerating device, carbon dioxide is circulated as a refrigerant through a refrigerating circuit in which at least a refrigerant compressor, a heat releasing device, an expansion mechanism and an evaporator are connected in an annular arrangement by refrigerant pipes. The refrigerating device oil used in the compressor has a viscosity at 40° C. of 5 to 300 cSt, a volume specific resistivity of at least 108 &OHgr;·cm, and a pour point of no higher than −30° C. when the carbon dioxide is dissolved to saturation. Organic materials which do not physically and/or chemically change due to high-temperature, high-pressure carbon dioxide are used in the refrigerating circuit. The refrigerating circuit is provided with a device for trapping moisture within the refrigerating circuit.

    摘要翻译: 提供了一种制冷装置,其对环境的负担小,并且其中可以除去大量的热量,并且使制冷装置油返回到压缩机良好。 在制冷装置中,二氧化碳作为制冷剂循环通过制冷剂回路,其中至少制冷剂压缩机,放热装置,膨胀机构和蒸发器通过制冷剂管道以环形排列连接。 在压缩机中使用的制冷装置油的粘度在40℃为5〜300cSt,体积比电阻率为至少为108欧姆·厘米,倾点为-30℃以下。当碳 二氧化碳溶解饱和。 在制冷回路中使用由于高温,高压二氧化碳而物理和/或化学变化的有机材料。 制冷回路设置有用于在制冷回路内捕获水分的装置。

    Multi-stage compressing refrigeration device and refrigerator using the device
    2.
    发明授权
    Multi-stage compressing refrigeration device and refrigerator using the device 有权
    多级压缩制冷装置和冰箱使用该装置

    公开(公告)号:US06189335B1

    公开(公告)日:2001-02-20

    申请号:US09236042

    申请日:1999-01-22

    IPC分类号: F25B110

    摘要: There is disclosed a multi-stage compressing refrigeration device for multi-stage compressing a refrigerant using a plurality of compressing means. Its object is to enhance reliability, intend to reduce input and improve refrigeration effect, and to enhance efficiency. In the multi-stage compressing refrigeration device, low-stage compressing means and high-stage compressing means, a condenser, first expanding means, an intermediate evaporator, second expanding means and a main evaporator constitute a refrigeration cycle. The refrigerant flowing out of the condenser is branched into one refrigerant passed to the intermediate evaporator via the first expanding means and the other refrigerant passed to the main evaporator via the second expanding means. Heat exchange is performed between the refrigerant flowing into the second expanding means and the intermediate evaporator. Additionally, the refrigerant flowing out of the main evaporator is sucked by the low-stage compressing means, and the refrigerant flowing out of the intermediate evaporator is sucked by the high-stage compressing means together with the refrigerant discharged from the low-stage compressing means.

    摘要翻译: 公开了一种使用多个压缩装置对制冷剂进行多级压缩的多级压缩式制冷装置。 其目的是提高可靠性,打算减少投入,提高制冷效果,提高效率。 在多级压缩制冷装置中,低级压缩装置和高级压缩装置,冷凝器,第一膨胀装置,中间蒸发器,第二膨胀装置和主蒸发器构成制冷循环。 从冷凝器流出的制冷剂经由第一膨胀装置分支成一个传递到中间蒸发器的制冷剂,另一个制冷剂经由第二膨胀装置传递到主蒸发器。 在流入第二膨胀装置的制冷剂和中间蒸发器之间进行热交换。 此外,从主蒸发器流出的制冷剂被低级压缩装置吸入,从中间蒸发器流出的制冷剂与从低级压缩装置排出的制冷剂一起被高级压缩装置吸入 。

    Apparatus having a refrigeration circuit
    3.
    发明授权
    Apparatus having a refrigeration circuit 有权
    具有制冷回路的装置

    公开(公告)号:US06385995B1

    公开(公告)日:2002-05-14

    申请号:US09609341

    申请日:2000-07-05

    IPC分类号: F25B3100

    摘要: There is provided an apparatus where a first cooler and a second cooler are provided in a refrigeration circuit and difluoromethane having its temperature lowered by these devices is let into a rotary compressor and compressed therein. As a result, the apparatus with high performance and reliability is provided without impairment of the chemical stability of lubricant oil or difluoromethane if the difluoromethane is used as a refrigerant.

    摘要翻译: 提供了一种装置,其中第一冷却器和第二冷却器设置在制冷回路中,并且通过这些装置降低其温度的二氟甲烷被放入旋转式压缩机中并在其中压缩。 结果,如果使用二氟甲烷作为制冷剂,则提供具有高性能和可靠性的装置,而不损害润滑油或二氟甲烷的化学稳定性。

    Multistage compressor
    6.
    发明授权
    Multistage compressor 有权
    多级压缩机

    公开(公告)号:US06769267B2

    公开(公告)日:2004-08-03

    申请号:US10221163

    申请日:2002-09-18

    IPC分类号: F25D1900

    摘要: Refrigerant compressed by a first stage compression elements (30) run by a motor (20) is discharged in the closed container (10) via a silencer chamber (35) to cool the motor (20) before the refrigerant is led to a second stage compression element (40). The refrigerant is discharged from the second stage compression element (40) out of the compressor after it is further compressed in the second compression element (40). Thus, the motor (20) is cooled in a simple cooling mechanism during normal operation of the compressor.

    摘要翻译: 由电动机(20)运行的第一级压缩元件(30)压缩的制冷剂经由消音器室(35)被排出到密闭容器(10)中,以在制冷剂被引导到第二级之前冷却电动机 压缩元件(40)。 制冷剂在第二压缩元件(40)中被进一步压缩之后,从压缩机排出第二级压缩元件(40)。 因此,在压缩机的正常运行中,电动机(20)以简单的冷却机构冷却。

    Horizontal type compressor and automobile air conditioner equipped with the same
    9.
    发明授权
    Horizontal type compressor and automobile air conditioner equipped with the same 有权
    卧式压缩机和汽车空调配备相同

    公开(公告)号:US07303379B2

    公开(公告)日:2007-12-04

    申请号:US10873293

    申请日:2004-06-23

    IPC分类号: F01C1/30

    摘要: An object is to execute sure oil supplying to a second rotary compression element in a horizontal type compressor equipped with the second rotary compression element in which pressure becomes higher than that in an airtight container. A horizontal type rotary compressor of a multistage compression system comprises a driving element and a compression mechanism section driven by the driving element in a horizontal type airtight container. The compression mechanism section is constituted of first and second rotary compression elements. A refrigerant compressed by the first rotary compression element is discharged into the airtight container, and the discharged refrigerant of intermediate pressure is further compressed by the second rotary compression element to be discharged. A gist is that an oil supply passage is formed in a cylinder of the second rotary compression element 34 to communicate a low-pressure chamber of the cylinder with a bottom part in the airtight container.

    摘要翻译: 本发明的目的是在配备有压力变得高于气密容器中的第二旋转压缩元件的卧式压缩机中对第二旋转压缩元件执行肯定的供油。 多级压缩系统的卧式旋转式压缩机包括驱动元件和由水平型气密容器中的驱动元件驱动的压缩机构部。 压缩机构部由第一和第二旋转压缩元件构成。 由第一旋转压缩元件压缩的制冷剂被排出到密闭容器中,中压的排出制冷剂被第二旋转压缩元件进一步压缩以被排出。 要点是在第二旋转压缩元件34的气缸中形成供油通道,以将气缸的低压室与气密容器中的底部部分连通。

    On-vehicle air-conditioner for air-conditioning
    10.
    发明授权
    On-vehicle air-conditioner for air-conditioning 失效
    空调车载空调

    公开(公告)号:US07066245B2

    公开(公告)日:2006-06-27

    申请号:US10258084

    申请日:2002-02-12

    IPC分类号: B60H1/00

    摘要: An on-vehicle air-conditioner for air-conditioning has a refrigeration circuit provided with a refrigerant car exterior heat exchanger installed for exchanging heat with the car exterior air that can be used for cooling and for heating, and at least one opening and closing duct for air inflow rate regulation installed in front of and/or behind the refrigerant car exterior heat exchanger. By controlling the opening/closing of the duct according to the situation, the arrangement can solve problems of the prior art, and can efficiently and sufficiently perform cooling, heating, defrosting or the like. The arrangement is useful even when using, for example, CO2 as a refrigerant, in vehicles such as hybrid cars using electricity and gasoline as their energy source, idle stop coping cars or the like.

    摘要翻译: 一种用于空调的车载空调器具有制冷回路,该制冷回路设置有与可用于冷却和加热的轿厢外部空气交换热量的制冷剂汽车外部热交换器,以及至少一个开闭管道 用于安装在制冷剂汽车外部热交换器前面和/或后面的空气流入速率调节器。 通过根据情况控制管道的打开/关闭,该装置可以解决现有技术的问题,并且可以有效且充分地进行冷却,加热,除霜等。 即使在例如使用CO 2作为制冷剂的情况下,在使用电和汽油作为其能源的混合动力汽车,怠速停止应对车辆等的车辆中也是有用的。