Patents by Inventor Adriano F. Pacitti

Adriano F. Pacitti 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).

  • Exhaust manifold arrangement
    Patent number: 7150273
    Abstract: A passageway is provided between branches of a multi-branch exhaust manifold to reduce the amount of backflow (iEGR) into the cylinders at low engine speeds. The passage is located upstream of the turbocharger and can be at the part of the manifold where the branches merge for entry into the turbo. The passageway allows exhaust pressure pulse modulation so that high iEGR levels (using iEGR through delayed exhaust valve closing for example) are avoided. The passage may be controllable to modulate the effect based on engine conditions.
    Type: Grant
    Filed: August 19, 2005
    Date of Patent: December 19, 2006
    Assignee: Perkins Engines Company Limited
    Inventors: Adriano F. Pacitti, Chris Barnes