Refrigerator oil composition
    13.
    发明授权
    Refrigerator oil composition 失效
    冰箱油组成

    公开(公告)号:US4800013A

    公开(公告)日:1989-01-24

    申请号:US50501

    申请日:1987-05-13

    摘要: The present invention relates to a refrigerator oil composition which comprises 70 to 98 wt % of a paraffin base oil having a pour point of not more than -35.degree. C., a sulfur content of not more than 50 ppm (parts per million), and a kinematic viscosity at 40.degree. C. of 5 to 500 cSt (centistrokes) and 30 to 2 wt % of a naphthene base oil having a pour point of not more than -35.degree. C., a sulfur content of 0.05 to 1 wt % and a kinematic viscosity at 40.degree. C. of 5 to 500 cSt, and in which the sulfur content is 0.01 to 0.10 wt %.The refrigerator oil composition of the present invention effectively prevents the formation of valve sludge. The refrigerator oil composition of the present invention is also excellent in anti-wear properties. Furthermore the refrigerator oil composition of the present invention is excellent in stability and baking resistance in the condition that is in contact with the refrigerant (Furon) and further is excellent in low temperature solubility. Moreover the refrigerator oil machine oil composition of the present invention contains as a main component a paraffin base oil which is steadily available.

    摘要翻译: 本发明涉及一种冷冻机油组合物,其包含70〜98重量%的倾点不大于-35℃的石蜡基油,硫含量不超过50ppm(百万分之一), 在40℃下的运动粘度为5至500cSt(中心密度)和30至2重量%的倾点不大于-35℃的环烷烃基油,硫含量为0.05-1重量% %,40℃下的运动粘度为5〜500cSt,硫含量为0.01〜0.10重量%。 本发明的冷冻机油组合物有效地防止了阀门污泥的形成。 本发明的冷冻机油组合物的耐磨损性也优异。 此外,本发明的冷冻机油组合物在与制冷剂(Furon)接触的状态下的稳定性和耐烘烤性优异,并且还具有优异的低温溶解性。 此外,本发明的冷冻机油机油组合物含有稳定可用的石蜡基油作为主要成分。

    Apparatus having a refrigeration circuit
    14.
    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。