Patents by Inventor Georg Donauer

Georg Donauer 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: 6725824
    Abstract: An internal combustion engine includes a compression chamber that is delimited by fixed housing walls and a movable piston mounted therein, and a porous component that fills the combustion chamber, which is separate from the compression chamber. The combustion of fuel and air takes place exclusively within the porous component. The compression chamber is connected to the combustion chamber only via an overflow cross-section designed to allow the transfer of combustion gases created during combustion from the combustion chamber into the compression chamber.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: April 27, 2004
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Georg Donauer, Arne Schneemann, Ralf Speetzen
  • Publication number: 20030183192
    Abstract: The invention relates to an internal combustion engine comprising a compression chamber (3) that is delimited by fixed housing walls (1, 2) and a movable piston (5) mounted therein, and a porous component (4) that fills the combustion chamber (6), which is separate from the compression chamber (3). The combustion of fuel and air takes place exclusively within the porous component (4). The compression chamber (3) is connected to the combustion chamber (6) only via an overflow cross-section (8) designed to allow the transfer of combustion gases created during combustion from the combustion chamber (6) into the compression chamber (3).
    Type: Application
    Filed: May 20, 2003
    Publication date: October 2, 2003
    Inventors: Georg Donauer, Arne Schneemann, Ralf Speetzen
  • Patent number: 6223699
    Abstract: The present application relates to an injector for use in an internal combustion engine designed to work with fuel/emulsion. Two fuel inlet passages, which are connected to a multichannel distributor and used for feeding fuel from a high pressure hose, are linked with a mixing unit surrounding the nozzle needle. Downstream of the multichannel distributor, in the vicinity of the mixing unit, a make-up liquid inlet passage is connected to a second fuel inlet passage through which the make-up liquid, especially water, is fed to produce emulsified fuel.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: May 1, 2001
    Assignee: MTU Motoren-Und Turbinen-Union Friedrichshafen GmbH
    Inventors: Georg Donauer, Bernd Danckert
  • Patent number: 5056310
    Abstract: An interior pipe carrying exhaust gases is arranged in a cooled housing 13. The interior pipe fastened to the housing 13 comprises individual sections 18 arranged in series while leaving expansion joints. The length of one section 18 corresponds approximately to the cylinder spacing of the piston internal-combustion engine. At the circumference, at the halfway point of its length, each section 18 has a plug-type connection 20 interacting with the housing. This plug-type connection 20 is arranged approximately opposite the lead-in point of an exhaust stub 15 of a cylinder interacting with the section 18. The plug-type connection 20 comprises a receiving device which, in a cooled manner, is arranged in the housing and a corresponding plug 23 connected with the section 18 of the interior pipe.
    Type: Grant
    Filed: May 17, 1990
    Date of Patent: October 15, 1991
    Assignee: MTU Motoren- und Turbinen- Union Friedrichshafen GmbH
    Inventors: Georg Donauer, Otto Reifenscheid