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    • 4. 发明公开
    • ROTARY COMPRESSOR
    • 旋转式压缩机
    • EP3054163A1
    • 2016-08-10
    • EP14849885.0
    • 2014-01-29
    • Fujitsu General Limited
    • TANAKA, JunyaKOMINE, Kenji
    • F04C18/356
    • F04C18/3564C23C8/04C23C8/26C23C28/044C23C28/046F01C21/0809F04C23/001F04C23/008F04C29/12F04C2230/91F04C2230/92F05C2201/0406F05C2201/0409F05C2201/0439F05C2201/0448F05C2201/046F05C2201/0466F05C2203/0808F05C2203/083F05C2203/0882F05C2253/12
    • A rotary compressor includes: a compressing unit that includes an annular cylinder, an end plate which has a bearing unit and a discharge valve unit and closes an end portion of the cylinder, an annular piston which is fit in an eccentric portion of a rotation shaft supported in the bearing unit, performs an orbital motion inside the cylinder along a cylinder inner wall of the cylinder, and forms an operation chamber together with the cylinder inner wall, and a vane which protrudes from the inside of a vane groove of the cylinder to the inside of the operation chamber, comes into contact with the annular piston, and partitions the operation chamber into an inlet chamber and a compression chamber. The vane is formed of steel and has a diamond-like carbon layer formed on a sliding surface with respect to the annular piston. The annular piston is formed of Ni-Cr-Mo cast iron to which 0.15 wt% to 0.45 wt% of phosphorus is added, or is formed of cast iron or steel and has an iron nitride layer formed on an outer circumferential surface thereof.
    • 一种旋转式压缩机,其特征在于,具备:压缩单元,其具有环状的气缸;端板,其具有轴承单元和排出阀单元,并且封闭该气缸的端部;环状活塞,其嵌合于旋转轴的偏心部 被支承在轴承单元中,沿气缸的气缸内壁在气缸内进行轨道运动,并且与气缸内壁一起形成操作室;以及叶片,其从气缸的叶片槽内突出到 操作室的内部与环形活塞接触,并将操作室分隔成入口室和压缩室。 叶片由钢形成并具有形成在相对于环形活塞的滑动表面上的类金刚石碳层。 环形活塞由添加了0.15wt%至0.45wt%磷的Ni-Cr-Mo铸铁形成,或者由铸铁或钢形成并且在其外周表面上形成有氮化铁层。