Patents by Inventor Pedro A. Plasencia

Pedro A. Plasencia 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: 8443774
    Abstract: The invention relates to a camshaft variator device for an internal combustion engine which includes a crankshaft and a camshaft. The invention includes: a first component which is rigidly connected to the camshaft of the engine, such that the rotation of the first component causes the camshaft to rotate; a second component which is rotated by the crankshaft of the engine; a third component which connects the first and second components to one another and which, in turn, rotates the first component in relation to the second component in order to vary the position and partial speed of the camshaft in respect of the crankshaft; and a fourth component which is used to impart a longitudinal and reciprocating longitudinal movement to the third component. The purpose of the device is to enable the opening and closing time and duration of the valves to be varied by varying the position and partial speed of the camshaft in relation to the crankshaft.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: May 21, 2013
    Inventor: Pedro A. Plasencia Marichal
  • Publication number: 20090223471
    Abstract: The invention relates to a camshaft variator device for an internal combustion engine which includes a crankshaft and a camshaft. The invention includes: a first component which is rigidly connected to the camshaft of the engine, such that the rotation of the first component causes the camshaft to rotate; a second component which is rotated by the crankshaft of the engine; a third component which connects the first and second components to one another and which, in turn, rotates the first component in relation to the second component in order to vary the position and partial speed of the camshaft in respect of the crankshaft; and a fourth component which is used to impart a longitudinal and reciprocating longitudinal movement to the third component. The purpose of the device is to enable the opening and closing time and duration of the valves to be varied by varying the position and partial speed of the camshaft in relation to the crankshaft.
    Type: Application
    Filed: November 16, 2005
    Publication date: September 10, 2009
    Inventor: Pedro A. Plasencia Marichal
  • Patent number: 6640760
    Abstract: A camshaft rearranging device for an internal combustion engine including a crankshaft and a camshaft having a longitudinal axis. The camshaft rearranging device includes first or internal part aligned with the longitudinal axis of the camshaft and jointed to the camshaft for rotating the camshaft; a second or external part aligned with the longitudinal axis of the camshaft and joined to the crankshaft for being rotated by the crankshaft; and a third or intermediate part aligned with the longitudinal axis of the camshaft and joining the first and second parts to one another for rotating the first part when the second part is rotated and for rotating the first part relative to the second part.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: November 4, 2003
    Inventor: Pedro A. Plasencia