Patents by Inventor Carlos Pai Joao

Carlos Pai Joao 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).

  • Crankshaft having optimized crankpin lubrication, and related engine and method for producing the lubrication system
    Patent number: 8985083
    Abstract: The invention relates to a crankshaft comprising at least: a journal; a first crankpin; a second crankpin; a first arm connecting the first crankpin to the journal; a second arm connecting the second crankpin to the journal; a first pipe extending away from the first crank pin toward the journal and leading onto the surface of the first crankpin on the transverse median plane thereof, and substantially passing to the center of the median plane of the second arm; and a second conduit extending away from the second crankpin toward the journal and leading onto the surface of the second crankpin on the transverse median plane thereof, and substantially passing to the center of the median plane of the second arm, characterized in that the shape of the crankshaft is such that it cannot also comprise a diametric pipe within the transverse median plane of the journal fluidly adjoining the first pipe and the second pipe, and the crankshaft comprises a third non-diametric pipe within the transverse median plan of the j
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: March 24, 2015
    Assignees: Peugeot Citroen Automobiles SA, GM Global Technology Operations LLC
    Inventors: Fabien Gouzonnat, Carlos Pai Joao
  • CRANKSHAFT HAVING OPTIMIZED CRANKPIN LUBRICATION, AND RELATED ENGINE AND METHOD FOR PRODUCING THE LUBRICATION SYSTEM
    Publication number: 20130327290
    Abstract: The invention relates to a crankshaft comprising at least: a journal; a first crankpin; a second crankpin; a first arm connecting the first crankpin to the journal; a second arm connecting the second crankpin to the journal; a first pipe extending away from the first crank pin toward the journal and leading onto the surface of the first crankpin on the transverse median plane thereof, and substantially passing to the center of the median plane of the second arm; and a second conduit extending away from the second crankpin toward the journal and leading onto the surface of the second crankpin on the transverse median plane thereof, and substantially passing to the center of the median plane of the second arm, characterized in that the shape of the crankshaft is such that it cannot also comprise a diametric pipe within the transverse median plane of the journal fluidly adjoining the first pipe and the second pipe, and the crankshaft comprises a third non-diametric pipe within the transverse median plan of the j
    Type: Application
    Filed: January 18, 2012
    Publication date: December 12, 2013
    Applicant: PEUGEOT CITROEN AUTOMOBILES SA
    Inventors: Fabien Gouzonnat, Carlos Pai Joao