Patents by Inventor Amin Haj-Ali

Amin Haj-Ali 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).

  • Apparatus and method for determining evaporative emissions
    Patent number: 7043963
    Abstract: A sealed housing evaporative determination (SHED) apparatus and method for practically zero emission vehicles (PZEV) provides periodic sampling of ambient air within a substantially air-tight testing structure enclosing a vehicle under test. Pressure drops within the testing structure are compensated by injecting air substantially free of hydrocarbons into the testing structure. Pressure increases within the testing structure are reduced by withdrawing ambient air from the testing structure. Hydrocarbon content of any withdrawn ambient air is determined from the latest sample, and cumulative evaporative emissions are adjusted accordingly.
    Type: Grant
    Filed: July 7, 2004
    Date of Patent: May 16, 2006
    Assignee: DaimlerChrysler Corporation
    Inventors: Dennis M Blumke, Ron Berndt, Amin Haj-Ali
  • Apparatus and method for determining evaporative emissions
    Publication number: 20060005607
    Abstract: A sealed housing evaporative determination (SHED) apparatus and method for practically zero emission vehicles (PZEV) provides periodic sampling of ambient air within a substantially air-tight testing structure enclosing a vehicle under test. Pressure drops within the testing structure are compensated by injecting air substantially free of hydrocarbons into the testing structure. Pressure increases within the testing structure are reduced by withdrawing ambient air from the testing structure. Hydrocarbon content of any withdrawn ambient air is determined from the latest sample, and cumulative evaporative emissions are adjusted accordingly.
    Type: Application
    Filed: July 7, 2004
    Publication date: January 12, 2006
    Inventors: Dennis Blumke, Ron Berndt, Amin Haj-Ali