Patents by Inventor Chris Kragh

Chris Kragh 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 system for fuel vapor control
    Patent number: 8434461
    Abstract: Methods and systems are provided for operating a fuel vapor recovery system having a fuel tank isolation valve coupled between a fuel tank and a canister. Fuel vapors are purged from the fuel tank to a canister buffer over a plurality of purge pulses. The pulses are adjusted based on the buffer capacity, a purge flow rate, and a fuel tank pressure to improve control of canister loading and reduce air-to-fuel ratio disturbances.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: May 7, 2013
    Assignee: Ford Global Technologies, LLC
    Inventors: James Michael Kerns, Chris Kragh, Dennis Yang, Timothy DeBastos, Russell Randall Pearce, Scott Bohr, Michael G. Heim
  • Method and System for Fuel Vapor Control
    Publication number: 20110265768
    Abstract: Methods and systems are provided for operating a fuel vapor recovery system having a fuel tank isolation valve coupled between a fuel tank and a canister. Fuel vapors are purged from the fuel tank to a canister buffer over a plurality of purge pulses. The pulses are adjusted based on the buffer capacity, a purge flow rate, and a fuel tank pressure to improve control of canister loading and reduce air-to-fuel ratio disturbances.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 3, 2011
    Applicant: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: James Michael Kerns, Chris Kragh, Dennis Yang, Timothy DeBastos, Russell Randall Pearce, Scott Bohr, Michael G. Heim