Patents by Inventor Boualem Oudjedi

Boualem Oudjedi 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: 9250022
    Abstract: The invention relates to a spiral heat exchanger including a spiral body formed by at least one spiral sheet wound to form a first spiral-shaped flow channel for a first medium, and a second spiral-shaped flow channel for a second medium. The spiral body is enclosed by a substantially cylindrical shell with connecting elements communicating with the first flow channel and the second flow channel. The shell includes at least two shell parts, and the spiral body is provided with at least one fixedly attached flange on its outer peripheral surface, whereupon the at least two shell parts are removably attached.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 2, 2016
    Assignee: ALFA LAVAL CORPORATE AB
    Inventors: Boualem Oudjedi, Pascal Maure
  • Publication number: 20130277023
    Abstract: The invention relates to a spiral heat exchanger including a spiral body formed by at least one spiral sheet wound to form a first spiral-shaped flow channel for a first medium, and a second spiral-shaped flow channel for a second medium. The spiral body is enclosed by a substantially cylindrical shell with connecting elements communicating with the first flow channel and the second flow channel. The shell includes at least two shell parts, and the spiral body is provided with at least one fixedly attached flange on its outer peripheral surface, whereupon the at least two shell parts are removably attached.
    Type: Application
    Filed: March 15, 2013
    Publication date: October 24, 2013
    Inventors: Boualem OUDJEDI, Pascal MAURE
  • Patent number: 8485246
    Abstract: This invention relates to a spiral heat exchanger including a spiral body formed by at least one spiral sheet wound to form a first spiral-shaped flow channel for a first medium, and a second spiral-shaped flow channel for a second medium. The spiral body is enclosed by a substantially cylindrical shell with connection elements communicating with the first flow channel and the second flow channel. The shell includes at least two shell parts, and the spiral body is provided with at least one fixedly attached flange on its outer peripheral surface, whereupon the at least two sell parts are removably attached.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: July 16, 2013
    Assignee: Alfa Laval Corporate AB
    Inventors: Boualem Oudjedi, Pascal Maure
  • Publication number: 20100294471
    Abstract: The invention relates to a spiral heat exchanger (1) including a spiral body (2) formed by at least one spiral sheet wounded to form the spiral body (2) forming at least a first spiral-shaped flow channel for a first medium and a second spiral-shaped flow channel for a second medium, wherein the spiral body (2) is enclosed by a substantially cylindrical shell (4) being provided with connecting elements (8a, 8b, 9a, 9b) communicating with the first flow channel and the second flow channel, where the shell (4) comprises at least two shell parts (4a, 4b), and that the spiral body (2) is provided with at least one fixedly attached flange (3) on its outer peripheral surface, whereupon the at least two shell parts (4a, 4b) are flexibly attached.
    Type: Application
    Filed: November 5, 2008
    Publication date: November 25, 2010
    Inventors: Boualem Oudjedi, Pascal Maure
  • Patent number: 7640972
    Abstract: The invention relates to a spiral heat exchanger including a central cylinder (5) and at least two spiral sheets (6, 7). The sheets extend from the cylinder to form a first spiral-shaped flow channel (8) for a first medium and a second spiral-shaped flow channel (9) for a second medium. The cylinder forms an inner space within the cylinder. The cylinder includes a first opening (11) communicating with the first flow channel and a second opening (12) communicating with the second flow channel. A pipe (14) extends into the inner space of the cylinder. A first communication channel, communicating with the first flow channel via the first opening, is formed within the pipe. A second communication channel, communicating with the second flow channel via the second opening, is formed in the inner space outside the pipe.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: January 5, 2010
    Assignee: Alfa Laval Corporate AB
    Inventors: Philippe Maupetit, Pierre Martinez, Boualem Oudjedi
  • Publication number: 20070062680
    Abstract: The invention relates to a spiral heat exchanger including a central cylinder (5) and at least two spiral sheets (6, 7). The sheets extend from the cylinder to form a first spiral-shaped flow channel (8) for a first medium and a second spiral-shaped flow channel (9) for a second medium. The cylinder forms an inner space within the cylinder. The cylinder includes a first opening (11) communicating with the first flow channel and a second opening (12) communicating with the second flow channel. A pipe (14) extends into the inner space of the cylinder. A first communication channel, communicating with the first flow channel via the first opening, is formed within the pipe. A second communication channel, communicating with the second flow channel via the second opening, is formed in the inner space outside the pipe.
    Type: Application
    Filed: May 11, 2004
    Publication date: March 22, 2007
    Inventors: Philippe Maupetit, Pierre Martinez, Boualem Oudjedi