Patents by Inventor Aziz Bakar

Aziz Bakar 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).

  • Method and apparatus for exhaust sound attenuation on engines with cylinder deactivation
    Patent number: 7090048
    Abstract: A system for attenuating exhaust noise from an engine with a first group of active cylinders and a second group of deactivatable cylinders includes a first exhaust manifold connected to the first group of active cylinders and a second exhaust manifold connected to the second group of deactivatable cylinders. The second exhaust manifold is connected to the first exhaust manifold such that the second exhaust manifold acts as a resonator to attenuate sound from the first group of active cylinders when the second group of cylinders is deactivated.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: August 15, 2006
    Assignee: General Motors Corporation
    Inventors: William C. Albertson, Richard W. Hart, Aziz Bakar
  • Method and apparatus for exhaust sound attenuation on engines with cylinder deactivation
    Publication number: 20050067219
    Abstract: A system for attenuating exhaust noise from an engine with a first group of active cylinders and a second group of deactivatable cylinders includes a first exhaust manifold connected to the first group of active cylinders and a second exhaust manifold connected to the second group of deactivatable cylinders. The second exhaust manifold is connected to the first exhaust manifold such that the second exhaust manifold acts as a resonator to attenuate sound from the first group of active cylinders when the second group of cylinders is deactivated.
    Type: Application
    Filed: September 26, 2003
    Publication date: March 31, 2005
    Inventors: William Albertson, Richard Hart, Aziz Bakar