Patents by Inventor Hermann Krenn

Hermann Krenn 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).

  • Patent number: 6681727
    Abstract: This invention relates to a cylinder head (1) for a plurality of cylinders (A,B,C) for a liquid-cooled internal combustion engine, with a cooling chamber configuration (3) adjacent to a fire deck (2), which is divided by an intermediate deck (4) essentially parallel to the fire deck (2) into a lower cooling chamber (5) next to the fire deck (2), and an upper cooling chamber (7) adjoining the lower cooling chamber (5) in the direction of the cylinder axis (6), where lower and upper cooling chamber (5, 7) communicate with each other via at least one flow opening, and where at least one coolant inlet (13) per cylinder (A,B,C), which is preferably located in the fire deck (2), opens into the lower cooling chamber (5), and at least one coolant outlet departs from the upper cooling chamber (7).
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: January 27, 2004
    Assignee: AVL List GmbH
    Inventor: Hermann Krenn
  • Publication number: 20020129776
    Abstract: This invention relates to a cylinder head (1) for a plurality of cylinders (A,B,C) for a liquid-cooled internal combustion engine, with a cooling chamber configuration (3) adjacent to a fire deck (2), which is divided by an intermediate deck (4) essentially parallel to the fire deck (2) into a lower cooling chamber (5) next to the fire deck (2), and an upper cooling chamber (7) adjoining the lower cooling chamber (5) in the direction of the cylinder axis (6), where lower and upper cooling chamber (5, 7) communicate with each other via at least one flow opening, and where at least one coolant inlet (13) per cylinder (A,B,C), which is preferably located in the fire deck (2), opens into the lower cooling chamber (5), and at least one coolant outlet departs from the upper cooling chamber (7).
    Type: Application
    Filed: January 25, 2002
    Publication date: September 19, 2002
    Inventor: Hermann Krenn