Patents by Inventor Hellmuth Mentschel

Hellmuth Mentschel 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: 4112876
    Abstract: A generator with a reaction chamber containing a catalytic charge for reacting liquid hydrocarbons with an oxygen containing gas to form a fuel gas is ignited by first electrically heating a part of the catalytic charge, preferably a part in front of the exit of the reaction chamber, to above the start up temperature of the catalyst. Then, the heating is terminated and an internal combustion engine which draws a hydrocarbon/air mixture with an air number higher than for normal operation over the hot volume of catalyst is started. The exothermic reaction which sets in there heats up the catalytic charge. Finally, the air number is throttled down and the transition to continuous operation is made.
    Type: Grant
    Filed: September 9, 1976
    Date of Patent: September 12, 1978
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hellmuth Mentschel
  • Patent number: 4018573
    Abstract: A reactor having a reaction chamber with an inlet and outlet along with a heat exchanger designed as a cooler for the gas product has all of its walls which are swept by the hot starting materials or the product gas on the way from the inlet to the cooler made of an entirely non-metallic, heat resistant material which will not act as a catalyzing agent for the formation of undesired reaction products.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: April 19, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hellmuth Mentschel
  • Patent number: 3958631
    Abstract: An improved heat exchanger for a catalytic gas converter, the heat exchanger being of the cross-flow type and comprised of several flow chambers separated from each other by heat exchanger surfaces having small wall thickness in which each flow chamber is sealed at each end with two plane parallel, warp-free sealing surfaces which face each other.
    Type: Grant
    Filed: December 10, 1973
    Date of Patent: May 25, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hellmuth Mentschel
  • Patent number: 3954422
    Abstract: A multi-stage reformed-gas generator(fuel converter) of the type having at least two reaction chambers, each of which containing a catalyst, with the two being connected in series in a flow direction, and means for supplying a gas acting as an oxygen carrier to the reaction chambers and means for supplying fuel gas through the chambers in the flow direction. The catalyst is arranged in the reaction chambers between gas permeable surfaces which separate the reaction chambers from each other and by means of which the gas serving as an oxygen carrier can be fed to the reaction chambers, in which the oxygen carrier gas and the fuel gas are contacted with each other substantially in perpendicular direction to their respective flows in the chamber.
    Type: Grant
    Filed: February 26, 1974
    Date of Patent: May 4, 1976
    Assignee: Siemens Aktiengesellschaft
    Inventor: Hellmuth Mentschel