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供给润滑油用的转子式偏心内啮合油泵(简称摆线转子机油泵),具有结构紧凑、体积小(在供油量相同的条件下,其体积仅为普通圆柱式齿轮泵的1/2)、容积效率高、高速性能好等特点。机油泵的内、外转子采用粉末冶金制品后,更具有制造简单、维修方便、成本低和耐磨性好的优点。我国目前已成批生产的机油泵内、外转子系列,是采用速比i=4/5的等距短幅外摆线内、外转子。这种油泵系列型谱按流量分为五档九级,流量4～166升/分(详见附表)。
Lubricating oil used rotor eccentric internal gear pump (referred to cycloid oil pump pump), with a compact, small size (in the same amount of fuel supply, the volume of only ordinary cylindrical gear pump 1/2) , High volumetric efficiency, high speed performance and so on. Oil pump, the inner and outer rotor powder metallurgy products, but also has the manufacturing simple, easy maintenance, low cost and good wear resistance advantages. At present, our country has mass production of oil pump, the outer rotor series, is the use of speed ratio i = 4/5 equidistant short-swing epicyclic inner and outer rotor. This type of oil pump spectrum by flow divided into five files nine, flow 4 ~ 166 l / min (see the table).