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公开(公告)号：US12281706B2
公开(公告)日：2025-04-22
申请号：US17791575
申请日：2020-12-09
Applicant: DANFOSS A/S
Inventor： Mihai B. Dobrica , Tianlei Li
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.
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公开(公告)号：US11560901B2
公开(公告)日：2023-01-24
申请号：US17640536
申请日：2020-11-11
Applicant: Danfoss A/S
Inventor： Alonso Perez , Tianlei Li , Jin Yan
Abstract: A compressor according to an exemplary aspect of the present disclosure includes, among other things, a mixed compression stage having both axial and radial components arranged along a main flow path, and a radial compression stage having an impeller with a plurality of vanes arranged in the main flow path downstream of the mixed compression stage. The impeller is configured to rotate about an axis and has an outlet downstream of the vanes. A movable diffuser is arranged at the outlet, and the movable diffuser is configured to vary an area of the outlet.
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公开(公告)号：US20220325720A1
公开(公告)日：2022-10-13
申请号：US17640550
申请日：2020-12-07
Applicant: DANFOSS A/S
Inventor： Tianlei Li , Lin Xiang Sun , Kevin Lohman
Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, an impeller configured to rotate about an axis, and a shroud. The impeller has a plurality of blades. The shroud is secured to the impeller with an adhesive at tips of the plurality of blades.
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公开(公告)号：US20200003192A1
公开(公告)日：2020-01-02
申请号：US16455888
申请日：2019-06-28
Applicant: Danfoss A/S
Inventor： Tianlei Li , Lin Sun , Mihai Bogdan Dobrica
IPC: F04B7/00 , F16J15/3288 , F25B11/04 , F04B43/00
Abstract: A centrifugal compressor 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.
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公开(公告)号：US11841173B2
公开(公告)日：2023-12-12
申请号：US16455998
申请日：2019-06-28
Applicant: Danfoss A/S
Inventor： Tianlei Li , Zili Sun , Lin Sun
CPC classification number: F25B1/053 , F04D27/002 , F04D29/441
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.
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Patent Agency Ranking
公开(公告)号：US11739654B2
公开(公告)日：2023-08-29
申请号：US17422407
申请日：2020-02-21
Applicant: Danfoss A/S
Inventor： Alonso Perez , Lin Xiang Sun , Jin Yan , Tianlei Li
IPC: F01D11/12 , F01D11/02 , F01D15/00 , F16J15/447 , F25B31/00
CPC classification number: F01D11/122 , F01D11/02 , F01D15/005 , F16J15/447 , F25B31/00 , F05D2240/55
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.
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公开(公告)号：US20220341437A1
公开(公告)日：2022-10-27
申请号：US17640536
申请日：2020-11-11
Applicant: Danfoss A/S
Inventor： Alonso Perez , Tianlei Li , Jin Yan
Abstract: A compressor according to an exemplary aspect of the present disclosure includes, among other things, a mixed compression stage having both axial and radial components arranged along a main flow path, and a radial compression stage having an impeller with a plurality of vanes arranged in the main flow path downstream of the mixed compression stage. The impeller is configured to rotate about an axis and has an outlet downstream of the vanes. A movable diffuser is arranged at the outlet, and the movable diffuser is configured to vary an area of the outlet.
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公开(公告)号：US11732701B2
公开(公告)日：2023-08-22
申请号：US17401934
申请日：2021-08-13
Applicant: Danfoss A/S
Inventor： Tianlei Li , Lin Sun , Mihai Bogdan Dobrica
IPC: F04B7/00 , F04B43/00 , F16J15/3288 , F25B11/04
CPC classification number: F04B7/0088 , F04B43/009 , F16J15/3288 , F25B11/04 , F04B2201/0803
Abstract: A centrifugal compressor 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.
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公开(公告)号：US20220120189A1
公开(公告)日：2022-04-21
申请号：US17422407
申请日：2020-02-21
Applicant: Danfoss A/S
Inventor： Alonso Perez , Lin Xiang Sun , Jin Yan , Tianlei Li
IPC: F01D11/12 , F01D11/02 , F01D15/00 , F16J15/447 , F25B31/00
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.
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公开(公告)号：US11125216B2
公开(公告)日：2021-09-21
申请号：US16455888
申请日：2019-06-28
Applicant: Danfoss A/S
Inventor： Tianlei Li , Lin Sun , Mihai Bogdan Dobrica
IPC: F16J15/3288 , F04B7/00 , F04B43/00 , F25B11/04
Abstract: A centrifugal compressor 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.
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