Patents by Inventor Dumitru-Cristian Leu

Dumitru-Cristian Leu 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: 11835059
    Abstract: The invention relates to a housing (1) for a fluid machine, in particular for a radial fan (2), comprising at least one housing part (3), wherein the housing part (3) has at least one inlet opening (7), wherein the housing part (3) can at least partially delimit a fluid chamber (8) for receiving at least one fan wheel (9), and wherein the inlet opening (7), at least in part, has a curved inlet surface (11).
    Type: Grant
    Filed: December 7, 2021
    Date of Patent: December 5, 2023
    Assignee: LEAR CORPORATION
    Inventors: Florian Weinzierl, Dumitru-Cristian Leu, Winfried Helmenstein
  • Publication number: 20220205456
    Abstract: The invention relates to a housing (1) for a fluid machine, in particular for a radial fan (2), comprising at least one housing part (3), wherein the housing pail (3) has at least one inlet opening (7), wherein the housing part (3) can at least partially delimit a fluid chamber (8) for receiving at least one fan wheel (9), and wherein the inlet opening (7), at least in part, has a coned inlet surface (11) To produce a housing (1) for a fluid machine, in particular a housing (1) for a radial fan, preferably for use in a car seat and offering reduced noise emission together with good performance, the curved inlet surface (11) has at least in part the furan of a logarithmic spiral in cross-section, aridly at least one guide element (21) extends from the inlet surface (11) towards a central axis of the inlet opening (7), and/or on the inside (17) of the housing part (3) there is provided a circumferential recess (25) which at least partially circumferentially
    Type: Application
    Filed: December 7, 2021
    Publication date: June 30, 2022
    Applicant: KA Group AG
    Inventors: Florian Weinzierl, Dumitru-Cristian Leu, Winfried Helmenstein
  • Patent number: 11225976
    Abstract: The invention relates to a housing (1) for a fluid machine, in particular for a radial fan (2), comprising at least one housing part (3), wherein the housing part (3) has at least one inlet opening (7), wherein the housing part (3) can at least partially delimit a fluid chamber (8) for receiving at least one fan wheel (9), and wherein the inlet opening (7), at least in part, has a curved inlet surface (11).
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: January 18, 2022
    Assignee: KA Group AG
    Inventors: Florian Weinzierl, Dumitru-Cristian Leu, Winfried Helmenstein
  • Patent number: 11173816
    Abstract: The present teachings relate to an air conditioner device with at least one ventilation device, which has at least one fluid transport device and at least two fluid exchange devices, wherein the fluid transport device has at least two attachment openings, of which one is a fluid inlet and one additional a fluid outlet. Provision is made that in at least one operational state at least a first fluid exchange device is attached to a fluid inlet of a fluid transporting device and a second fluid exchange device is attached to a fluid outlet of a fluid transporting device.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: November 16, 2021
    Assignee: GENTHERM GMBH
    Inventors: Jonathan Zhang, Johannes Grau, Steve Kang, Marco Ranalli, Martin Adldinger, Dumitru-Cristian Leu
  • Publication number: 20200200187
    Abstract: The invention relates to a housing (1) for a fluid machine, in particular for a radial fan (2), comprising at least one housing part (3), wherein the housing part (3) has at least one inlet opening (7), wherein the housing part (3) can at least partially delimit a fluid chamber (8) for receiving at least one fan wheel (9), and wherein the inlet opening (7), at least in part, has a curved inlet surface (11).
    Type: Application
    Filed: July 2, 2018
    Publication date: June 25, 2020
    Inventors: Florian Weinzierl, Dumitru-Cristian Leu, Winfried Helmenstein
  • Publication number: 20200031242
    Abstract: A thermoelectric module assembly for thermally conditioning a component includes first and second heat spreaders that are spaced apart from one another and configured to respectively provide cold and hot sides. An insulator plate is arranged between the first and second heat spreaders. The insulator plate has a compression limiter. A thermoelectric device is arranged with—in the insulator plate and operatively engaged with the first and second heat spreaders. A fastening element secures the first and second heat spreaders to one another about the insulator plate in an assembled condition. The compression limiters are configured to maintain a predetermined spacing between the first and second heat spreaders in the assembled condition.
    Type: Application
    Filed: June 8, 2016
    Publication date: January 30, 2020
    Inventors: David Scott Thomas, Martin Adldinger, Shaun Peter McBride, Dumitru-Cristian Leu, Rüdiger Spillner
  • Publication number: 20180164002
    Abstract: A thermoelectric module assembly for thermally conditioning a component includes first and second members that are spaced apart from one another and are configured to respectively provide cold and hot sides. An insulator plate is arranged between the first and second members. A thermoelectric device is arranged within the insulator plate and is operatively engaged with the first and second members. A fastening element secures the first and second members to one another about the insulator plate in an assembled condition. The fastening element includes a temporarily compressible material that provides a compression limiter.
    Type: Application
    Filed: June 8, 2016
    Publication date: June 14, 2018
    Inventors: Rüdiger Spillner, Dumitru-Cristian Leu
  • Publication number: 20180166621
    Abstract: A cooling system for thermally conditioning a component which includes a heat spreader and a thermoelectric device that operatively thermally engages the heat spreader. A cold plate assembly operatively thermally engages the thermoelectric device. A fastening element secures the cold plate assembly to the heat spreader to provide a clamp load on the thermoelectric device and the cold plate assembly, wherein the thermoelectric device and the cold plate assembly are integrated with one another as a module.
    Type: Application
    Filed: June 8, 2016
    Publication date: June 14, 2018
    Inventors: Marco Ranalli, Martin Adldinger, Alexander Strobl, Dumitru-Cristian Leu
  • Publication number: 20160172571
    Abstract: The present invention relates to an electricity generation unit (100) equipped with:—at least one heat withdrawal chamber (23) for at least temporarily arranging a heat source (3) at least partially therein,—at least one shell (13) for delimiting the heat withdrawal chamber (23) from the surrounding environment thereof,—at least one thermoelectric converter (1) for converting heat into electrical energy. Provision is made for the thermoelectric converter (1) to be removable from the electricity generation unit (100), while the sleeve (13) of the working chamber can remain closed, unchanged.
    Type: Application
    Filed: August 8, 2014
    Publication date: June 16, 2016
    Inventors: Dumitru-Cristian Leu, Shaun Peter McBride, Martin Adldinger, Marco Ranalli