Patents by Inventor Mark Anderson Criddle

Mark Anderson Criddle 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).

  • Crank case ventilation system
    Patent number: 6722129
    Abstract: The present invention relates to a crank case ventilation system for an internal combustion engine that has a two-stage air charge boosting system. An air inlet system supplies the engine with air that may be pressurised by an upstream supercharger and a downstream turbocharger in series. A crank case evacuation system draws crank case gasses from a crank case and introduces said gasses into the air inlet system, through either a first conduit or a second conduit, depending on the setting of a pressure-regulated control valve. The first conduit is used to introduce said gasses upstream of the first boost stage when this stage is operational, and when the first boost stage is not operational, the second conduit is used to introduce said gasses downstream of the first boost stage and upstream of the second boost stage.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: April 20, 2004
    Assignee: Visteon Global Technologies, Inc.
    Inventors: Mark Anderson Criddle, William Marc Edward Brotherton
  • Crank case ventilation system
    Publication number: 20030140909
    Abstract: The present invention relates to a crank case ventilation system for an internal combustion engine that has a two-stage air charge boosting system. An air inlet system supplies the engine with air that may be pressurised by an upstream supercharger and a downstream turbocharger in series. A crank case evacuation system draws crank case gasses from a crank case and introduces said gasses into the air inlet system, through either a first conduit or a second conduit, depending on the setting of a pressure-regulated control valve. The first conduit is used to introduce said gasses upstream of the first boost stage when this stage is operational, and when the first boost stage is not operational, the second conduit is used to introduce said gasses downstream of the first boost stage and upstream of the second boost stage.
    Type: Application
    Filed: December 19, 2002
    Publication date: July 31, 2003
    Applicant: VISTEON GLOBAL TECHNOLOGIES, INC.
    Inventors: Mark Anderson Criddle, William Marc Edward Brotherton