CENTRIFUGAL COMPRESSOR CURVED DIFFUSING PASSAGE PORTION

A diffuser (42) for a centrifugal compressor (18) including an annular diffuser housing (20) having a plurality of diffuser flow passages (22) therethrough the housing (20). Each passage (22) including a throat portion (28) and a diffusing section (99) with upstream and downstream diffusing portions...

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Bibliographische Detailangaben
Hauptverfasser:	SMYTHE CAITLIN JEANNE, MACRORIE MICHAEL, PARKER DAVID VICKERY, MILLER DAVID PAUL
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	A diffuser (42) for a centrifugal compressor (18) including an annular diffuser housing (20) having a plurality of diffuser flow passages (22) therethrough the housing (20). Each passage (22) including a throat portion (28) and a diffusing section (99) with upstream and downstream diffusing portions (102, 104). A diffusing passage centerline (108) includes a linear portion (120) extending downstream through the throat portion (28) and the upstream diffusing portion (102) and a curved portion (122) of the diffusing passage centerline (108) extending downstream from the centerline linear portion (120) through the downstream diffusing portion (104). The diffuser flow passages (22) may have an equivalent cone angle (CA2) varying non-linearly or more particularly curvilinearly downstream along curved portion (122). The downstream diffusing portion (104) may be flared. 种用于离心压缩机(18)的扩散器(42)包括环形扩散器壳体(20)，其具有穿过壳体(20)的多个扩散器流动通路(22)。各个通路(22)包括喉部(28)和带上游扩散部分(102)和下游扩散部分(104)的扩散区段(99)。扩散通路中心线(108)包括向下游延伸穿过喉部(28)和上游扩散部分(10