Patents by Inventor Håkan Sandquist

Håkan Sandquist 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 of reducing exhaust gas emissions during cold start conditions and an internal combustion engine in which the method is used
    Patent number: 7124734
    Abstract: An internal combustion engine and a method of reducing hydrocarbon emissions of an internal combustion engine during cold start conditions in disclosed. The engine has at least one cylinder provided with a piston which reciprocates between a top dead-center and a bottom dead-center, at least one intake valve through which intake air is provided, a fuel injector assembly arranged to inject atomised fuel particles directly into the cylinder and means for controlling the opening and closing of the intake valve. According to the invention, intake valve opening is adjusted to occur after top dead center of the piston. When the intake valve opens, a pressure differential exists across the valve. Fuel is injected directly into the cylinder during the time of the pressure differential.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: October 24, 2006
    Assignee: Ford Global Technologies, LLC
    Inventors: Goran Almkvist, Håkan Sandquist, Henrik Håkansson
  • Method of reducing exhaust gas emissions during cold start conditions and an internal combustion engine in which the method is used
    Publication number: 20050268885
    Abstract: An internal combustion engine and a method of reducing hydrocarbon emissions of an internal combustion engine during cold start conditions in disclosed. The engine has at least one cylinder provided with a piston which reciprocates between a top dead-center and a bottom dead-center, at least one intake valve through which intake air is provided, a fuel injector assembly arranged to inject atomised fuel particles directly into the cylinder and means for controlling the opening and closing of the intake valve. According to the invention, intake valve opening is adjusted to occur after top dead center of the piston. When the intake valve opens, a pressure differential exists across the valve. Fuel is injected directly into the cylinder during the time of the pressure differential.
    Type: Application
    Filed: June 3, 2005
    Publication date: December 8, 2005
    Inventors: Goran Almkvist, Håkan Sandquist, Kenrik Håkansson