公开(公告)号：WO2021230909A1

公开(公告)日：2021-11-18

申请号：PCT/US2020/063994

申请日：2020-12-09

Applicant: DANFOSS A/S

Inventor： DOBRICA, Mihai B. ,  LI, Tianlei

IPC: F16J15/44 ,  F16J15/34

Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a floating ring seal having a nose configured to contact a housing. Further, a low friction coating including carbon nanotubes (CNTs) is applied to one or both of the nose and the housing. In another aspect of this disclosure, the floating ring seal has first and second noses configured to contact the housing, and the first nose is radially spaced-apart from the second nose.

公开(公告)号：EP3587827A1

公开(公告)日：2020-01-01

申请号：EP19183467.0

申请日：2019-06-28

Applicant: Danfoss A/S ,  Li, Tianlei ,  Sun, Lin

Inventor： LI, Tianlei ,  SUN, Lin ,  DOBRICA, Mihai B.

IPC: F04D29/08 ,  F04D29/10

Abstract: A centrifugal compressor, such as for HVAC application, includes a rotary component rotatable about an axis, a static component, and a brush seal fixed to one of the static component and the rotary component. The brush seal includes bristles that contact the other of the static component and the rotary component.