Patents by Inventor Tadeu Mendonca FAGUNDES

Tadeu Mendonca FAGUNDES 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).

  • Refrigerant compressor with impeller having blades with wavy contour
    Patent number: 11988221
    Abstract: This disclosure relates to a refrigerant compressor including an impeller. The impeller has a blade with a wavy contour. The wavy contour reduces flow separation relative to smooth, non-wavy blades. In particular, the disclosed wavy contour creates smaller trailing edge vortexes adjacent the blades. In turn, the wavy contour of the blades improves overall compressor efficiency.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: May 21, 2024
    Assignee: Danfoss A/S
    Inventors: Jin Yan, Tadeu Mendonca Fagundes, Ryan Dingman
  • MOTOR COOLING USING IMPINGEMENT JETS CREATED BY PERFORATED COOLING JACKET
    Publication number: 20230392836
    Abstract: A refrigerant compressor according to an exemplary aspect of the present disclosure includes, among other things, a cooling jacket including a plurality of perforations configured to cause refrigerant flowing through the perforations to form impingement jets and further configured to direct the impingement jets onto a surface adjacent a stator. The refrigerant compressor may be used in a heating, ventilation, and air conditioning (HVAC) chiller system, for example.
    Type: Application
    Filed: November 11, 2021
    Publication date: December 7, 2023
    Inventors: Tadeu Mendonca FAGUNDES, Jin Yan, Lin Xiang Sun
  • REFRIGERANT COMPRESSOR WITH IMPELLER HAVING BLADES WITH WAVY CONTOUR
    Publication number: 20230235748
    Abstract: This disclosure relates to a refrigerant compressor including an impeller. The impeller has a blade with a wavy contour. The wavy contour reduces flow separation relative to smooth, non-wavy blades. In particular, the disclosed wavy contour creates smaller trailing edge vortexes adjacent the blades. In turn, the wavy contour of the blades improves overall compressor efficiency.
    Type: Application
    Filed: November 28, 2022
    Publication date: July 27, 2023
    Inventors: Jin Yan, Tadeu Mendonca Fagundes, Ryan Dingman