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    • 8. 发明专利
    • Rotary compressor
    • 旋转式压缩机
    • JP2013204464A
    • 2013-10-07
    • JP2012072507
    • 2012-03-27
    • Fujitsu General Ltd株式会社富士通ゼネラル
    • YAHABA SHINGOMOROZUMI NAOYA
    • F04C29/02
    • F04C18/00F04C18/3564F04C23/008F04C29/023F04C29/025F04C2230/60F04C2240/603F16N7/366
    • PROBLEM TO BE SOLVED: To provide a rotary compressor having an oil supply mechanism, configured to prevent a countershaft part of a rotational shaft from being deformed or increased in diameter.SOLUTION: A rotary compressor includes an oil supply mechanism 159 supplying lubricating oil stored in a lower part of a compressor casing, to a sliding part of a compressor through an oil supply vertical hole 155 and oil supply horizontal holes 156 of a rotational shaft 15. The oil supply mechanism 159 includes: a fitting vertical hole 155b larger in inner diameter than the oil supply vertical hole 155, and formed in the countershaft part 151 at the lower part of the rotational shaft 15; an oil supply pipe 16 having a suction port 16a formed at a lower end, opened at the top, formed by press-fitting an upper part into the fitting vertical hole 155b, and made from material softer than that of the rotational shaft; and a pump impeller 157 having an impeller part 157a formed in a shape of an elongated plate made of a steel plate harder than the material of the oil supply pipe, having a width narrower than an inner diameter of the oil supply pipe 16 and an inner diameter of the oil supply vertical hole 155, twisted, and inserted into the oil supply vertical hole 155 with a space therebetween, and a base part 157b formed to be wider than the impeller part 157a and pressed and fixed into the lower part of the oil supply pipe 16 projected below the fitting vertical hole 155b.
    • 要解决的问题:提供一种具有供油机构的旋转式压缩机,其构造为防止旋转轴的中间轴部分变形或增大直径。旋转压缩机包括:供油机构159,其供给储存在 压缩机壳体的下部通过供油垂直孔155和旋转轴15的供油水平孔156与压缩机的滑动部分连接。供油机构159包括:内径较大的配合垂直孔155b 比供油垂直孔155形成在转轴15的下部的中间轴部151中; 供油管16,其具有形成在下端的吸入口16a,其顶部开口,通过将上部压配合到配合垂直孔155b中,并由比旋转轴的材料更软的材料制成; 以及泵叶轮157,其具有形成为由比供油管的材料更硬的钢板制成的细长板的形状的叶轮部157a,其宽度比供油管16的内径窄。 供油垂直孔155的直径,扭曲并插入到供油垂直孔155之间,其间具有间隙;基部157b形成为比叶轮部157a宽,并被压固并固定在油的下部 供给管16伸出配合垂直孔155b的下方。