Patents by Inventor Marcel Hollmann

Marcel Hollmann 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).

  • Test stand for simulation of the exhaust flow of an internal combustion engine
    Patent number: 7353698
    Abstract: This invention relates to a test stand for simulation of the exhaust flow of an internal combustion engine, comprising a cylinder (36) and a base body (39) which is designed as a cylinder head and in which at least one exhaust port (41, 42) which is monitored by a charge cycle valve (43, 44) is provided for simulation, and/or, mapping, of a combustion chamber and a trough and/or cup (40) is also provided, whereby the charge cycle valve (43, 44) can be operated with the help of a valve lift switching [device], a control device for the valve lift shifting and a device for filling the cylinder (36) with compressed air.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: April 8, 2008
    Assignee: Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    Inventors: Erwin Rutschmann, Klaus Fuoss, Marcel Hollmann
  • Test stand for simulation of the exhaust flow of an internal combustion engine
    Publication number: 20060048565
    Abstract: This invention relates to a test stand for simulation of the exhaust flow of an internal combustion engine, comprising a cylinder (36) and a base body (39) which is designed as a cylinder head and in which at least one exhaust port (41, 42) which is monitored by a charge cycle valve (43, 44) is provided for simulation, and/or, mapping, of a combustion chamber and a trough and/or cup (40) is also provided, whereby the charge cycle valve (43, 44) can be operated with the help of a valve lift switching [device], a control device for the valve lift shifting and a device for filling the cylinder (36) with compressed air.
    Type: Application
    Filed: August 4, 2004
    Publication date: March 9, 2006
    Inventors: Erwin Rutschmann, Klaus Fuoss, Marcel Hollmann