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发明授权
CN105358837B 离心压缩机 有权 转让

离心压缩机
摘要：
本发明提供一种离心压缩机，目的在于，减轻在进气通道中流动的进气的流通阻力，抑制扼流流量的减少，同时改善喘振边界，扩大离心压缩机的工作范围。离心压缩机的特征为，具备压缩机壳体(15)、在压缩机壳体(15)的内部压缩进气的叶轮(7)、将从进气口(23)流入的进气进行整流使进气与旋转轴(9)平行的平行流生成单元(51)、使叶轮(7)的外周部的一部分的进气返回叶轮(7)的上游侧的再循环流路(41)，平行流生成单元(51)具有由导向叶片(55)生成平行流的平行流生成部(52)和被平行流生成部(52)围成的空间即中央进气流通部(59)，来自上游侧开口部(45)的进气流出方向朝向平行流生成部(52)。
摘要（英）：

A centrifugal compressor includes: a compressor housing 15; an impeller wheel 7 for compressing intake air, disposed inside the compressor housing; a parallel flow generating unit 51 for rectifying the intake air flowing in via an intake port 23 to be parallel to the direction of a rotation shaft 9; and a recirculation channel 41 for returning a part of the intake air in an outer circumferential section of the impeller wheel to an upstream side of the impeller wheel 7. The parallel flow generating unit 51 includes a parallel flow generating part 52 including a plurality of guide vanes 55 and a central intake-air flowing section 59 which is a space surrounded by the parallel flow generating part 52. An intake-air outflow direction from an upstream opening 45 is oriented toward the parallel flow generating part 52.

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