Patents by Inventor Bernard Broquere

Bernard Broquere 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).

  • High speed composite turbine wheel
    Patent number: 5222866
    Abstract: The wheel comprises a central portion, or rim provided with blades at its peripheral portion and is made of a single piece of composite material formed by a fibrous reinforcement densified by a matrix. The fibrous reinforcement is formed from a helical fabric with radially oriented fibers and circumferentially oriented fibers. The density of fibers in a radial direction and the density of fibers in a circumferential direction varies along a radius of the wheel as a function of the variations of the radial stresses and circumferential stresses that are exerted on the wheel when it is in operation. At least part of the circumferentially oriented fibers in the rim are made of a material having high mechanical resistance, while at least part of circumferentially oriented fibers in the blades and at least part of the axially oriented fibers are made of a material having good resistance to high temperatures and chemical attacks.
    Type: Grant
    Filed: July 10, 1992
    Date of Patent: June 29, 1993
    Assignee: Societe Europeenne de Propulsion
    Inventors: Jean-Pierre LaBrouche, Bernard Broquere, Jean-Marie Parenteau, Jacques Etienne, Alain Lacombe
  • Process for manufacturing a turbine or compressor wheel made of composite material and wheel thus obtained
    Patent number: 4751123
    Abstract: This invention relates to a process for manufacturing a turbine or compressor wheel made of composite material, comprising the following steps of:making at least two helicoidal textures each formed by weaving a spiral band with helicoidal warp yarns and weft yarns which are substantially perpendicular to the axis of the texture,assembling the helicoidal textures by "screwing" them in each other and stacking them by mutually approaching their interlaced turns, anddensifying the stack thus made to obtain a preform of a turbine or compressor wheel.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: June 14, 1988
    Assignee: Societe Europeene de Propulsion
    Inventors: Bernard Broquere, Jacques Etienne
  • Process for manufacturing a turbine or compressor wheel made of composite material and wheel thus obtained
    Patent number: 4709457
    Abstract: This invention relates to a process for manufacturing a turbine or compressor wheel made of composite material, comprising the following steps of:making at least two helicoidal textures each formed by weaving a spiral band with helicoidal warp yarns and weft yarns which are substantially perpendicular to the axis of the texture,assembling the helicoidal textures by "screwing" them in each other and stacking them by mutually approaching their interlaced turns, anddensifying the stack thus made to obtain a preform of a turbine or compressor wheel.
    Type: Grant
    Filed: August 9, 1985
    Date of Patent: December 1, 1987
    Assignee: Societe Europeenne de Propulsion
    Inventors: Bernard Broquere, Jacques Etienne