公开(公告)号：US10422345B2

公开(公告)日：2019-09-24

申请号：US15101633

申请日：2014-10-17

申请人： General Electric Company

发明人： David Vickery Parker ,  Michael Macrorie ,  Caitlin Jeanne Smythe ,  David Paul Miller

IPC分类号： F04D29/44 ,  F01D9/02 ,  F04D17/10

摘要： A diffuser for a centrifugal compressor including an annular diffuser housing having a plurality of diffuser flow passages therethrough the housing. Each passage including a throat portion and a diffusing section with upstream and downstream diffusing portions. A diffusing passage centerline includes a linear portion extending downstream through the throat portion and the upstream diffusing portion and a curved portion of the diffusing passage centerline extending downstream from the centerline linear portion through the downstream diffusing portion. The diffuser flow passages may have an equivalent cone angle varying non-linearly or more particularly curvilinearly downstream along curved portion. The downstream diffusing portion may be flared.