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发明授权
CN105822568B 用于电动机驱动压缩机的压缩机扩散器和护罩 有权

用于电动机驱动压缩机的压缩机扩散器和护罩
摘要：
一方面包括一种用于电动机驱动压缩机组件的压缩机扩散器和护罩。所述电动机驱动压缩机组件包括第一级压缩机和第二级压缩机。所述第一级压缩机的所述压缩机扩散器和护罩包括扩散器部分、压缩机进气口部分以及护罩部分。所述扩散器部分包括扩散器部分外唇缘，所述扩散器部分外唇缘具有第一密封唇缘外径，以向第一级压缩机壳体提供第一密封接口。所述压缩机进气口部分包括进气口部分外唇缘，所述进气口部分外唇缘具有第二密封唇缘外径，以提供第二密封接口。所述护罩部分包括在所述扩散器部分外唇缘与所述进气口部分外唇缘之间的，与第一级压缩机转子对准的弯曲部分，其中所述第一密封唇缘外径与所述第二密封唇缘外径之比在1.622与1.628之间。
摘要（英）：

An aspect includes a compressor diffuser and shroud for a motor driven compressor assembly. The motor driven compressor assembly includes a first stage compressor and a second stage compressor. The compressor diffuser and shroud of the first stage compressor includes a diffuser portion, a compressor inlet portion, and a shroud portion. The diffuser portion includes a diffuser portion outer lip having a first sealing lip outer diameter to provide a first sealing interface to a first stage compressor housing. The compressor inlet portion includes an inlet portion outer lip having a second sealing lip outer diameter to provide a second sealing interface. The shroud portion includes a curvature between the diffuser portion outer lip and the inlet portion outer lip to align with a first stage compressor rotor, where a ratio of the first sealing lip outer diameter to the second sealing lip outer diameter is between 1.622 and 1.628.

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