公开(公告)号：US20230235748A1

公开(公告)日：2023-07-27

申请号：US17994453

申请日：2022-11-28

Applicant: Danfoss A/S

Inventor： Jin Yan ,  Tadeu Mendonca Fagundes ,  Ryan Dingman

IPC: F04D29/28

CPC classification number: F04D29/284 ,  F05D2240/303 ,  F05D2240/304

Abstract: This disclosure relates to a refrigerant compressor including an impeller. The impeller has a blade with a wavy contour. The wavy contour reduces flow separation relative to smooth, non-wavy blades. In particular, the disclosed wavy contour creates smaller trailing edge vortexes adjacent the blades. In turn, the wavy contour of the blades improves overall compressor efficiency.

公开(公告)号：US11988221B2

公开(公告)日：2024-05-21

申请号：US17994453

申请日：2022-11-28

Applicant: Danfoss A/S

Inventor： Jin Yan ,  Tadeu Mendonca Fagundes ,  Ryan Dingman

IPC: F04D29/28

CPC classification number: F04D29/284 ,  F05D2240/303 ,  F05D2240/304

Abstract: This disclosure relates to a refrigerant compressor including an impeller. The impeller has a blade with a wavy contour. The wavy contour reduces flow separation relative to smooth, non-wavy blades. In particular, the disclosed wavy contour creates smaller trailing edge vortexes adjacent the blades. In turn, the wavy contour of the blades improves overall compressor efficiency.