公开(公告)号：US20170284407A1

公开(公告)日：2017-10-05

申请号：US15084430

申请日：2016-03-29

申请人： Michael Xuwang Cao

发明人： Michael Xuwang Cao

IPC分类号： F04D27/00 ,  F04D29/44 ,  F04D17/10

CPC分类号： F04D17/10 ,  F04D29/4213 ,  F04D29/444 ,  F04D29/684 ,  F05B2240/123 ,  F05D2250/51

摘要： A turbomachinery assembly has a fluid inlet positioned to facilitate the passage of a fluid. The turbomachinery inlet may need a device which can produce inlet swirl or no swirl based on the operation conditions. In this invention, an inlet swirl device is designed to produce the inlet swirl with only one asymmetric automatic valve. No actuator is needed to control the valve. The valve opening is automatic adjusted based on the inlet flow rate. An inlet vane ring assembly is disposed adjacent the inlet and includes a plurality of vanes in the circumferential direction. The vane ring is not movable, but can produce different magnitudes of swirl.