公开(公告)号：US20250163937A1

公开(公告)日：2025-05-22

申请号：US18948867

申请日：2024-11-15

Applicant: Danfoss A/S

Inventor： Brenden Richman ,  Karthik Krishna ,  Jin Yan

IPC: F04D29/66 ,  F04D17/10 ,  F04D29/44 ,  F25B31/02

Abstract: A refrigerant compressor includes an impeller rotatable about an axis and a volute. A diffuser is axially between a first wall and a second wall, and radially between an outlet of the impeller and the volute. A diffuser plate provides the second wall, which includes a plurality of quarter wave tubes, each of the plurality of quarter wave tubes including a cylindrical blind hole extending radially from the second wall.

公开(公告)号：US20240247686A1

公开(公告)日：2024-07-25

申请号：US18401825

申请日：2024-01-02

Applicant: Danfoss A/S

Inventor： Jin Yan ,  Karthik Krishna

IPC: F16C32/04 ,  F25B31/02 ,  H02K7/09

CPC classification number: F16C32/0474 ,  F25B31/026 ,  H02K7/09 ,  F16C2360/00

Abstract: A refrigerant compressor may include an auxiliary bearing arranged about a shaft. An interface of the auxiliary bearing and the shaft includes at least one groove.