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PARALLEL TWIN-IMPELLER COMPRESSOR HAVING SWIRL-IMPARTING DEVICE FOR ONE IMPELLER
PARALLEL TWIN-IMPELLER COMPRESSOR HAVING SWIRL-IMPARTING DEVICE FOR ONE IMPELLER
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机译:带有双叶轮旋入装置的平行双叶轮压缩机
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摘要
An turbocharger includes a parallel twin-impeller compressor and separate inlets into the two impellers. A first or outboard impeller receives one stream of inlet air and a second or inboard impeller receives its own separate stream of inlet air by way of a generally annular inlet volute surrounding the inlet to the second impeller. Air is fed from the inlet volute radially inwardly through a feed passage to the inlet to the second impeller. A plurality of inlet guide vanes are located in the feed passage for the second impeller, the inlet guide vanes creating a swirling air stream into the second impeller. Introduction of swirl to the second impeller alters the flow distribution between the impellers and affects the stability of the overall stage.
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