Patents by Inventor Amir Kapic

Amir Kapic 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).

  • Low pressure EGR system having full range capability
    Patent number: 7591131
    Abstract: An exhaust treatment system for an engine is disclosed and may have an air induction circuit, an exhaust circuit, and an exhaust recirculation circuit. The air induction circuit may be configured to direct air into the engine. The exhaust circuit may be configured to direct exhaust from the engine and include a turbine driven by the exhaust, a particulate filter disposed in series with and downstream of the turbine, and a catalytic device disposed in series with and downstream of the particulate filter. The exhaust recirculation circuit may be configured to selectively redirect at least some of the exhaust from between the particulate filter and the catalytic device to the air induction circuit. The catalytic device is selected to create backpressure within the exhaust circuit sufficient to ensure that, under normal engine operating conditions above low idle, exhaust can flow into the air induction circuit without throttling of the air.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: September 22, 2009
    Assignee: Caterpillar Inc.
    Inventors: William Lanier Easley, Jr., David Michael Milam, Stephan Donald Roozenboom, Michael Steven Bond, Amir Kapic
  • Low pressure EGR system having full range capability
    Publication number: 20080127645
    Abstract: An exhaust treatment system for an engine is disclosed and may have an air induction circuit, an exhaust circuit, and an exhaust recirculation circuit. The air induction circuit may be configured to direct air into the engine. The exhaust circuit may be configured to direct exhaust from the engine and include a turbine driven by the exhaust, a particulate filter disposed in series with and downstream of the turbine, and a catalytic device disposed in series with and downstream of the particulate filter. The exhaust recirculation circuit may be configured to selectively redirect at least some of the exhaust from between the particulate filter and the catalytic device to the air induction circuit. The catalytic device is selected to create backpressure within the exhaust circuit sufficient to ensure that, under normal engine operating conditions above low idle, exhaust can flow into the air induction circuit without throttling of the air.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Inventors: William Lanier Easley, David Michael Milam, Stephan Donald Roozenboom, Michael Steven Bond, Amir Kapic