Patents by Inventor Tianlei Li

Tianlei Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12050036
    Abstract: This disclosure relates to refrigerant compressors, and, in particular, relates to cooling for the power electronics of such compressors. An example refrigerant system includes a main refrigerant loop in communication with a condenser, an evaporator, and a compressor. The refrigerant system further includes at least one cooling line configured to direct refrigerant from the main refrigerant loop to cool a chamber containing electronic components. A method is also disclosed.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: July 30, 2024
    Assignee: DANFOSS A/S
    Inventors: Lin Xiang Sun, Tianlei Li, Brandon Keith Pritchard
  • Publication number: 20240183445
    Abstract: The disclosure relates to a sealing device comprising a sealing device comprising an annular substrate comprising an inner periphery defining a shaft hole; and a plurality of carbon nanotubes extending outwardly from and around the inner periphery into the shaft hole. In various practices, a plurality of annular metal mesh substrates is axially interposed and sandwiched between the first annular frame and a second annular frame, with a portion of the substrates comprising the carbon nanotubes extending outwardly from and around the inner periphery into the shaft hole. In another practice, the a solid annular metal substrate is used and a plurality of carbon nanotubes that extend into the shaft hole each have a first end attached to the inner periphery whereby the second end extends into the shaft hole. The device is useful in e.g. gas compressors.
    Type: Application
    Filed: September 22, 2023
    Publication date: June 6, 2024
    Inventors: Jun Qu, Chanaka K. IhalaGamaralalage, Tianlei Li
  • Patent number: 11841173
    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.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: December 12, 2023
    Inventors: Tianlei Li, Zili Sun, Lin Sun
  • Patent number: 11739654
    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.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: August 29, 2023
    Inventors: Alonso Perez, Lin Xiang Sun, Jin Yan, Tianlei Li
  • Patent number: 11732701
    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.
    Type: Grant
    Filed: August 13, 2021
    Date of Patent: August 22, 2023
    Assignee: DANFOSS A/S
    Inventors: Tianlei Li, Lin Sun, Mihai Bogdan Dobrica
  • Publication number: 20230087561
    Abstract: This disclosure relates to refrigerant compressors, and, in particular, relates to cooling for the power electronics of such compressors. An example refrigerant system includes a main refrigerant loop in communication with a condenser, an evaporator, and a compressor. The refrigerant system further includes at least one cooling line configured to direct refrigerant from the main refrigerant loop to cool a chamber containing electronic components. A method is also disclosed.
    Type: Application
    Filed: March 16, 2021
    Publication date: March 23, 2023
    Inventors: Lin Xiang SUN, Tianlei LI, Brandon Keith PRITCHARD
  • Publication number: 20230081243
    Abstract: An electric machine according to an exemplary aspect of the present disclosure includes, among other things, an electric machine including a rotor having a sleeve radially outside a permanent magnet. Further, the sleeve includes at least one magnetic arc segment and at least one non-magnetic arc segment.
    Type: Application
    Filed: June 30, 2020
    Publication date: March 16, 2023
    Inventors: Tianlei LI, Delvis Anibal GONZALEZ
  • Patent number: 11560901
    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.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: January 24, 2023
    Inventors: Alonso Perez, Tianlei Li, Jin Yan
  • Publication number: 20220381350
    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.
    Type: Application
    Filed: December 9, 2020
    Publication date: December 1, 2022
    Inventors: Mihai B. DOBRICA, Tianlei LI
  • Publication number: 20220341437
    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.
    Type: Application
    Filed: November 11, 2020
    Publication date: October 27, 2022
    Inventors: Alonso Perez, Tianlei Li, Jin Yan
  • Publication number: 20220325720
    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.
    Type: Application
    Filed: December 7, 2020
    Publication date: October 13, 2022
    Inventors: Tianlei Li, Lin Xiang Sun, Kevin Lohman
  • Publication number: 20220120189
    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.
    Type: Application
    Filed: February 21, 2020
    Publication date: April 21, 2022
    Inventors: Alonso Perez, Lin Xiang Sun, Jin Yan, Tianlei Li
  • Publication number: 20210372382
    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.
    Type: Application
    Filed: August 13, 2021
    Publication date: December 2, 2021
    Inventors: Tianlei Li, Lin Sun, Mihai Bogdan Dobrica
  • Patent number: 11125216
    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.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: September 21, 2021
    Assignee: Danfoss A/S
    Inventors: Tianlei Li, Lin Sun, Mihai Bogdan Dobrica
  • Publication number: 20200003455
    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.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 2, 2020
    Inventors: Tianlei Li, Zili Sun, Lin Sun
  • Publication number: 20200003192
    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.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 2, 2020
    Inventors: Tianlei Li, Lin Sun, Mihai Bogdan Dobrica
  • Patent number: 10189812
    Abstract: The invention disclosed a compound of general formula (I), a single stereoisomer thereof, a mixture of stereoisomers thereof, and a prodrug, pharmaceutically acceptable salt and metabolite thereof, X1, X2, X3, X4, R1, R2, x, y and z being as defined in the present invention.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: January 29, 2019
    Assignees: THE KEY LABORATORY OF CHEMISTRY FOR NATURAL PRODUC, VERSITECH LIMITED
    Inventors: Weidong Pan, Yibin Feng, Yazhou Liu, Ning Wang, Lan Huang, Guangyi Liang, Maosheng Zhang, Tianlei Li, Huayong Lou, Zhanxing Hu, Sheng Liu, Peixue Cao, Jinghua Ruan, Junjie Lan, Chao Chen
  • Publication number: 20170260161
    Abstract: The invention disclosed a compound of general formula (I), a single stereoisomer thereof, a mixture of stereoisomers thereof, and a prodrug, pharmaceutically acceptable salt and metabolite thereof, X1, X2, X3, X4, R1, R2, x, y and z being as defined in the present invention.
    Type: Application
    Filed: June 29, 2015
    Publication date: September 14, 2017
    Inventors: Weidong Pan, Yibin Feng, Yazhou Liu, Ning Wang, Lan Huang, Guangyi Liang, Maosheng Zhang, Tianlei Li, Huayong Lou, Zhanxing Hu, Sheng Liu, Peixue Cao, Jinghua Ruan, Junjie Lan, Chao Chen