公开(公告)号：WO2020176339A1

公开(公告)日：2020-09-03

申请号：PCT/US2020/019192

申请日：2020-02-21

Applicant: DANFOSS A/S

Inventor： PEREZ, Alonso ,  SUN, Lin Xiang ,  YAN, Jin ,  LI, Tianlei

IPC: F16J15/447 ,  F01D5/20 ,  F01D11/08

Abstract: A compressor according to an exemplary aspect of the present disclosure includes, among other things, a rotor configured to rotate with respect to a stator, the stator having an abradable portion. At least one labyrinth seal is between the rotor and the stator, wherein the labyrinth seal comprises a plurality of teeth extending from the rotor toward the abradable portion.

公开(公告)号：EP3587826A1

公开(公告)日：2020-01-01

申请号：EP19183466.2

申请日：2019-06-28

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

Inventor： LI, Tianlei ,  SUN, Zili ,  SUN, Lin

IPC: F04D27/02 ,  F04D29/62 ,  F04D29/42

Abstract: A centrifugal compressor includes a first stage and a second stage. At least one of the first stage and the second stage includes an impeller and a shroud spaced from the impeller and configured to guide a fluid flow through the impeller. The shroud is selectively moveable between an engaged position and a disengaged position.