Patents by Inventor Hans C. Pohl

Hans C. Pohl 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: 4818252
    Abstract: An arrangement for and a method of gasifying finely divided, particularly solid fuel under increased pressure with a multi-pipe wall having a plurality of pipes arranged to be supplied with a cooling medium, the multi-pipe wall limiting a gas-collecting chamber and also limiting a plurality of recesses which form combustion chambers, wherein each of the recesses having a plurality of parameters including a depth, a width and an angle of inclination of a peripheral wall and being such that at least one of the parameters is changeable
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: April 4, 1989
    Assignee: Krupp Koppers GmbH
    Inventors: Klaus Kohnen, Hans Niermann, Hans C. Pohl
  • Patent number: 4750553
    Abstract: A heat exchanger for cooling solid substance-containing gases comprises a plurality of heat exchanging tubes through which gases flow. An intake nozzle of a trumpet-shaped configuration is coaxially mounted on and connected to the end portion of each heat exchanger tube. A locking device is provided to connect the intake nozzle to the respective tube.
    Type: Grant
    Filed: September 22, 1986
    Date of Patent: June 14, 1988
    Assignee: Krupp-Koppers GmbH
    Inventors: Hans C. Pohl, Friedrich W. Kloster, Eberhard Schlag
  • Patent number: 4697413
    Abstract: A method of cooling partial oxidation gas entraining finely divided impurities employs nitrogen obtained as a by-product in a low temperature air decomposing plant delivering oxygen into a gasifier where a fuel is partially oxidized at a temperature above slag melting point. Crude gas exiting from the gasifier is quenched by the admixture of nitrogen to a temperature immediately below the fusing of softening point of dust particles entrained in the crude gas. Then the mixture is indirectly cooled in a waste heat boiler and subsequently additionally cooled in a second gas quencher by the admixture of further nitrogen. Nitrogen remains admixed to the gas during subsequent separating and desulphurizing treatment and is also supplied in the combustion chamber of a gas turbine.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: October 6, 1987
    Inventor: Hans C. Pohl
  • Patent number: 4655793
    Abstract: In a method for safely operating a coal gasifier which is indirectly cooled by passing a heat-carrying oil through a cooling jacket of the gasifier, the pressure of the heat-carrying oil is continually measured after having passed through the cooling jacket. If the measured pressure falls below a predetermined pressure, the supply of coal and gasifying agents to the gasifier is interrupted, the passage of heat-carrying oil is interrupted and water or steam is passed through the cooling jacket until the gasifier is safely shutdown.
    Type: Grant
    Filed: May 17, 1985
    Date of Patent: April 7, 1987
    Assignee: Krupp Koppers GmbH
    Inventor: Hans C. Pohl