Patents by Inventor Alberto Keel

Alberto Keel 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).

  • VARIABLE VALVE TIMING DEVICE WITH ECCENTRIC VALVE ACTUATOR SLEEVES
    Publication number: 20130186357
    Abstract: Variable valve timing apparatus includes eccentric valve actuator sleeves which surrounds each of the valve actuators. In a preferred embodiment, the pivoting sleeves act to change the position of the valve actuator axis related to the camshaft axis. In combination with roller style cam follower, a movement of the actuator axis in camshaft rotation direction it causes a delayed valve operation, meantime a movement of the actuator axis towards the camshaft rotation direction it causes a advanced valve operation mode.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 25, 2013
    Inventor: Alberto Keel
  • Rocker arm for valve actuation in internal combustion engines
    Patent number: 7171930
    Abstract: A rocker arm is disclosed for valve actuation in an internal combustion engine. The rocker arm includes at least two rotational axes which can be selected as desired to modify a relation between a force arm and a load arm. Control times and valve lift can thus be influenced in a targeted manner.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: February 6, 2007
    Inventor: Alberto Keel
  • Rocker arm for valve actuation in internal combustion engines
    Publication number: 20050166876
    Abstract: A rocker arm is disclosed for valve actuation in an internal combustion engine. The rocker arm includes at least two rotational axes which can be selected as desired to modify a relation between a force arm and a load arm. Control times and valve lift can thus be influenced in a targeted manner.
    Type: Application
    Filed: February 22, 2005
    Publication date: August 4, 2005
    Inventor: Alberto Keel