Patents by Inventor Sigurd Limbach

Sigurd Limbach 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 for controlling charge adjustment devices
    Patent number: 6532934
    Abstract: The invention relates to a control process for charge flow management devices as arranged in the intake area of the inlet ports of direct-injection internal combustion engines and port-injection type internal combustion engines having intake ports into which no fuel is injected. The process is characterized by the fact that the charge flow management devices are not closed when the engine operates on overrun. This reduces fouling on the intake valves produced by fuel and lubricant residue.
    Type: Grant
    Filed: September 29, 2001
    Date of Patent: March 18, 2003
    Assignee: Ford Global Technologies, Inc.
    Inventors: Claus Juergen Glahn, Ingo Lenz, Sigurd Limbach
  • Method for controlling charge adjustment devices
    Publication number: 20020152986
    Abstract: The invention relates to a control process for charge flow management devices as arranged in the intake area of the inlet ports of direct-injection internal combustion engines and port-injection type internal combustion engines having intake ports into which no fuel is injected. The process is characterized by the fact that the charge flow management devices are not closed when the engine operates on overrun. This reduces fouling on the intake valves produced by fuel and lubricant residue.
    Type: Application
    Filed: September 29, 2001
    Publication date: October 24, 2002
    Inventors: Claus Juergen Glahn, Ingo Lenz, Sigurd Limbach