Patents by Inventor Arnim Marschewski

Arnim Marschewski 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).

  • Use of ferrocene
    Patent number: 5746784
    Abstract: A process for reducing carbonaceous deposits caused by the combustion of heavy fuel oil in high-compression, spontaneous-ignition internal combustion engines involves adding an additive such as ferrocene or ethyl ferrocene to a heavy fuel oil having a density of 0.9 to 1.01 kg/dm.sup.3 in an amount of 1 to 100 ppm prior to combustion of the fuel oil and combusting the fuel oil in the high-compression, spontaneous-ignition internal combustion engine. The additive is dissolved in the heavy fuel oil.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: May 5, 1998
    Assignees: Chemische Betriebe Pluto GmbH, A/S Dampskibsselskabet Svendborg, Dampskibsselskabet AF 1912 A/S
    Inventors: Walter Thunker, Gabriele Lohmann, Arnim Marschewski, Tage Nielsen, Christian Lutzen
  • Device for adding additives to liquid fuels in the fuel stream
    Patent number: 5573557
    Abstract: A device as described for direct addition of additive solids to liquid fuels, which solids are soluble in the fuel. For adding solids to fuel directly in the line leading to the combustion chamber or engine, the device includes a hollow body at least partially filled with the solid, whose lengthwise axis is at an angle .alpha. of 130.degree. to 170.degree. to the inflowing fuel and whose lower end, irrigated by inflowing fuel, has at least one opening through which the fuel can enter and leave the hollow body.
    Type: Grant
    Filed: September 28, 1994
    Date of Patent: November 12, 1996
    Assignee: Chemische Betriebe Pluto GmbH
    Inventors: Walter Thunker, Gabriele Lohmann, Arnim Marschewski
  • Device for adding additives to liquid fuels
    Patent number: 5456217
    Abstract: A device for direct addition of solid additives to fuels for internal combustion engines. In order to ensure a concentration of the solid additive in the fuel which is as constant as possible, the device has a cartridge at least partially filled with the solid additives and at least partially permeable to the fuel. The cartridge is located in a portion of the filling neck of a fuel tank.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: October 10, 1995
    Assignee: Chemische Betriebe Pluto GmbH
    Inventors: Walter Thunker, Gabriele Lohmann, Arnim Marschewski, H. J. Langer, Roland Schulte