公开(公告)号：US12025154B2

公开(公告)日：2024-07-02

申请号：US18032854

申请日：2021-11-17

Applicant: DANFOSS A/S

Inventor： Jin Yan ,  Kevin Patrick Hartzog ,  Tianli Zhang

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

CPC classification number: F04D29/441 ,  F04D17/10 ,  F04D29/661

Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a diffuser including grooves configured to resist backflow of refrigerant. The compressor is used in a heating, ventilation, and air conditioning (HVAC) chiller system, for example.

公开(公告)号：US12276286B2

公开(公告)日：2025-04-15

申请号：US18274064

申请日：2022-04-12

Applicant: Danfoss A/S

Inventor： Tianli Zhang ,  Jin Yan ,  Jose Manuel Urcia

IPC: F04D29/44 ,  F04D17/10 ,  F04D29/28

Abstract: In some aspects, the techniques described herein relate to a refrigerant compressor, including: a shrouded impeller including a passageway permitting refrigerant to flow from a location radially outside a shroud of the shrouded impeller to a location radially inside the shroud.

公开(公告)号：US20220243965A1

公开(公告)日：2022-08-04

申请号：US17574813

申请日：2022-01-13

Applicant: DANFOSS A/S

Inventor： Tianli Zhang ,  Jin Yan

IPC: F25B31/02 ,  F04D25/06 ,  H02K1/30 ,  H02K5/20 ,  H02K9/06

Abstract: In some aspects, the techniques described herein relate to a refrigerant compressor, including: an impeller; a shaft; a motor configured to rotate the impeller via the shaft, wherein the motor includes a stator and a rotor; and a housing surrounding the motor, wherein the housing includes a first inlet configured to permit fluid to enter the housing and flow along a stator cooling line and a second inlet configured to permit fluid to enter the housing and flow a rotor cooling line, and wherein the first inlet is separate from the second inlet.

公开(公告)号：US11988420B2

公开(公告)日：2024-05-21

申请号：US17574813

申请日：2022-01-13

Applicant: DANFOSS A/S

Inventor： Tianli Zhang ,  Jin Yan

IPC: F25B31/02 ,  F04D25/06 ,  H02K1/30 ,  H02K5/20 ,  H02K9/06

CPC classification number: F25B31/026 ,  F04D25/06 ,  H02K1/30 ,  H02K5/207 ,  H02K9/06

Abstract: In some aspects, the techniques described herein relate to a refrigerant compressor, including: an impeller; a shaft; a motor configured to rotate the impeller via the shaft, wherein the motor includes a stator and a rotor; and a housing surrounding the motor, wherein the housing includes a first inlet configured to permit fluid to enter the housing and flow along a stator cooling line and a second inlet configured to permit fluid to enter the housing and flow a rotor cooling line, and wherein the first inlet is separate from the second inlet.