Patents by Inventor Klaus Kohnen

Klaus Kohnen 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: 6051195
    Abstract: The present invention pertains to a synthesis gas heat exchanger unit with one synthesis gas radiant cooler (1), two synthesis gas convection coolers (23), one crude gas-clean gas heat exchanger (4), one crude gas-inert gas heat exchanger (5), and one dust separator (11). These devices are preferably arranged vertically or slopingly. The crude gas heat exchangers (4, 5, 23) are designed as single-flue, double-flue or multiple-flue heat exchangers. They are elastically supported via claws (10) and are equipped with an electric heater (9). A soot blower system (13) is associated with each flue (4.1, 4.2) as well as (5.1, 5.2) and right hand flue and left hand flue (23.1, 23.2) at the crude gas inlet. Soot blowers (31) are likewise provided on the connection lines (2, 6), and mass flow controllers (7) are provided in the lower connection lines (6).
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: April 18, 2000
    Assignee: Man Gutehoffnungshutte Aktiengesellschaft
    Inventors: Wolfgang Deeke, Wolfram Gruhlke, Jurgen Heering, Klaus Kohnen
  • Patent number: 5976203
    Abstract: A synthesis gas generator with a combustion chamber and quench chamber for generating, cooling and cleaning gases, which are generated by partial oxidation in the combustion chamber of the synthesis gas generator. The combustion chamber (3) and the quench chamber (7) are separate chambers connected by a flow channel (6). Nozzle assemblies (10, 11) with nozzle heads (9, 34), which spray in a quenching medium (8), are arranged in the gas inlet area of the quench chamber (7). The quench zone within the quench chamber (7) is joined by a useful gas-quenching medium-mixing zone. A cone (20) is located at the outlet of the quench chamber. This cone is followed by a water bath (21). The useful gas leaves the synthesis gas generator after deflection by 180.degree. in the rear-side area of the cone (20) via gas outlet openings (23).
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: November 2, 1999
    Assignee: Metallgesellschaft Aktiengellschaft
    Inventors: Wolfgang Deeke, Wolfram Gruhlke, Jurgen Heering, Klaus Kohnen
  • Patent number: 5950572
    Abstract: An opening arrangement in which a sliding plate accommodates a soot blower lance to be inserted into a medium-pressure gas-accommodating space through a tube cage in a boiler heated by waste heat. A soot blower box is provided with an elongated slotted hole. A frame is located between the sliding plate and the slotted opening, and a sheet of ceramic fiber is secured in the frame.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: September 14, 1999
    Assignee: Metallgesellschaft Aktiengesellschaft
    Inventors: Jurgen Heering, Klaus Kohnen
  • Patent number: 5873329
    Abstract: A refractory lining in the transition section of a gasifier to the waste heat boiler with claws/brackets for supporting refractory shaped bricks. Each claw is suspended on hooks in a pipe branch and is protected from overheating by cooling tubes. The refractory lining is supported in the tube bundle by brackets, which are arranged one on top of another and are welded to webs tube-web-tube welding of the tube bundle. The lower bracket at the cooling tube bundle and the horizontal tube wall are protected against clogging with slag by a refractory mass with a drip nose. Expansion joints are provided between the shaped brick segments under the brackets, whereas ring-shaped fiberboard segments are inserted above the claw.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: February 23, 1999
    Assignee: MAN Gutehoffnungshutte Aktiengesellschaft
    Inventors: Jurgen Heering, Klaus Kohnen, Duane Brooker
  • Patent number: 5810075
    Abstract: A heat-insulating lining on heat exchanger surfaces for reducing the heat flow at the cooling surfaces of a medium- or high-pressure heat exchanger, which comprises a tube-web-tube wall. Corrosion resistant fastening pins are arranged in a weld area on the webs of the cooling surface. A ceramic fiber material is arranged as a heatinsulating material on both sides of the webs up to the level of the outside of the tubes of the tube wall, and segments of a ceramic moleskin mat, which are held by fastening pins and fastening washers, are arranged above it on both sides. An expanded metal, which is protected by a refractory material with good corrosion resistance, is additionally arranged at one or both edge zones and at the locations of the joints of the moleskin mat segments.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 22, 1998
    Assignees: MAN Gutehoffnungshutte Aktiengesellschaft, Karrena GmbH
    Inventors: Wolfgang Deeke, Michael Havlik, Jurgen Heering, Klaus Kohnen
  • Patent number: 5794688
    Abstract: A heat insulation and corrosion protection of the inner vessel wall of a heat exchanger in a synthesis gas cooler. The heat insulation and corrosion protection are arranged above a thermal seal fastened between the vessel wall and the cooling tubes. The insulation and protection includes segments of fiber-filled plates, which are fastened to the vessel wall by means of a substructure and an adhesive or foam material. Support rings with a heat insulation protection means absorb the vertical forces. A metallic corrosion protection layer is applied to the inner vessel wall under the thermal seal. Free breathing of the vessel wall is possible and pressure equalization between the gas space and the annular space is guaranteed due to the heat insulation and corrosion protection according to the present invention.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: August 18, 1998
    Assignee: MAN Gutehoffnungshutte Aktiengesellschaft
    Inventors: Jurgen Heering, Klaus Kohnen, Michael Havlik, Hermann Knorth
  • Patent number: 5058534
    Abstract: A pipe wall for hot reaction chambers comprises a plurality of pipes which together define a side to be heat loaded, and a plurality of holding elements arranged on the heat-loaded side for holding a temperature resistant coating. The pipes on the heat-loaded side together forming a substantially flat surface.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: October 22, 1991
    Assignee: Krupp Koppers GmbH
    Inventors: Hans-Christoph Pohl, Klaus Kohnen
  • Patent number: 4893912
    Abstract: A tubular housing is provided at one end thereof with a protective glass prism facing an observation opening in a pressurized reactor. The other end of the housing is closed and the intermediate part thereof supports an inclined mirror. A viewing tubular piece is arranged transversely to the tubular housing to receive light rays reflected from the mirror. The free end of the viewing piece is also provided with a protective glass prism.
    Type: Grant
    Filed: November 7, 1985
    Date of Patent: January 16, 1990
    Assignee: Krupp Koppers GmbH
    Inventors: Klaus Kohnen, Hans Niermann, Lothar Semrau
  • 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: 4818253
    Abstract: The gasification device includes a pipe wall structure assembled of a plurality of pipe circuits enclosing in a gas tight manner a reactor space. A pressure jacket surrounds at a distance the pipe wall structure and delimits therewith a water filled interspace. All inlet conduits for supplying cooling water to individual pipe circuits pass through the jacket whereas the outlets of the pipe circuits open into the interspace. A common discharge conduit for cooling water is provided in the pressure jacket and communicates with the interspace. The pressure jacket is assembled of two parts interconnected by a releasable flange connection. All inlet conduits and common outlet conduits are attached to the upper part so as to enable the lifting of the entire pipe wall structure upon the lower part together with the upper part.
    Type: Grant
    Filed: June 9, 1987
    Date of Patent: April 4, 1989
    Assignee: Krupps Koppers GmbH
    Inventors: Klaus Kohnen, Hans Niermann, Norbert Ullrich
  • Patent number: 4807698
    Abstract: A heat exchanger for gases under high pressure comprises a pressure vessel, a pluraity of heat exchanger trains arranged in the pressure vessel so that gas flows through the heat exchanger trains, the heat exchanger trains being formed as substantially identical structural units, the heat exchanger trains being connected with one another with a gas deflection therebetween and being connected with the pressure vessel so that they are releasable from and separately removable from the pressure vessel, elements for gas deflection between the heat exchanger trains, and elements for releasably and separately connecting the heat exchange trains to the pressure vessel.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: February 28, 1989
    Assignee: Krupp-Koppers GmbH
    Inventors: Klaus Kohnen, Hans Niermann
  • Patent number: 4765631
    Abstract: A stuffing box sealing arrangement for sealing a rotary shaft which extends into a pressure space includes two separate consecutive pressure chambers arranged at axially spaced locations along the shaft and an intervening space sealed with respect to the exterior of the arrangement and the pressure space and arranged between the pressure chambers. A plurality of stuffing sealing rings is accommodated in each of the pressure chambers and two glands are provided each being arranged around the shaft at one of the locations in registry with the respective associated plurality of stuffing sealing rings. Each of the glands is independently pressed against the respective associated plurality of stuffing sealing rings, and lubrication water is supplied into the intervening space to continuously lubricate both pluralities of stuffing sealing rings.
    Type: Grant
    Filed: February 13, 1986
    Date of Patent: August 23, 1988
    Assignee: Krupp-Koppers GmbH
    Inventors: Klaus Kohnen, Adolf Linke, Hans Niermann
  • Patent number: 4731097
    Abstract: A device for cooling a stream of hot producer gas exiting from a gasification reactor operating at an increased pressure, includes a set of water spraying nozzles directed against the producer gas stream. Water feeding conduits connected to the nozzles pass through a sealing web provided between the pipe wall structure of the reactor and a separate pipe wall structure of a gas outlet connection piece provided above the discharge opening of the reactor. The geometric locations of respective nozzles are on a circle whose diameter is larger than that of the gas discharge opening and is smaller than the inner diameter of the pipe wall structure of the connection piece.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: March 15, 1988
    Assignee: Krupp Koppers GmbH
    Inventors: Klaus Kohnen, Hans Niermann, Norbert Ullrich
  • Patent number: 4617988
    Abstract: A soot blower for the removal of deposits collected on the surfaces of walls forming a chamber, through which gases containing solid particles flow, is integrated in one of the walls which form that chamber. The feeding pipes of the blower for feeding a blowing agent into the chamber are formed in the region of the line which defines the outer face of that wall.
    Type: Grant
    Filed: March 26, 1984
    Date of Patent: October 21, 1986
    Assignee: Krupp-Koppers GmbH
    Inventors: Klaus Kohnen, Hans Niermann, Norbert Ullrich
  • Patent number: 4603588
    Abstract: A device for gripping a specimen for applying to the same tensile or torsional strain includes two plates spaced from each other and a tubular spacer extended between the two plates and accommodating a specimen. The specimen is attached to the plates by respective nuts. One end of the specimen extended outwardly from the respective plate and nut is formed by a threaded pin, on which a pulling device for applying tensile stress onto the specimen, is set. The other end of the specimen has a square portion to which a tap wrench is applied, which, with the aid of two bolts positioned on one of the plates, applies torsional strains to the specimen.
    Type: Grant
    Filed: July 20, 1984
    Date of Patent: August 5, 1986
    Assignee: Krupp Koppers GmbH
    Inventors: Hans Niermann, Klaus Kohnen, Joachim Jorde
  • Patent number: 4590867
    Abstract: A pin for holding and/or cooling of a ceramic coating in hot reaction chambers has a pin shaft and a pin cap connected with one another in firm and heat-conductive manner, wherein the pin shaft is composed of material corresponding to the reaction conditions in the hot reaction chamber, and the pin cap is composed of a material corresponding to the material of the wall of the hot reaction chamber.
    Type: Grant
    Filed: June 4, 1985
    Date of Patent: May 27, 1986
    Assignee: Krupp-Koppers GmbH
    Inventors: Klaus Kohnen, Norbert Ullrich
  • Patent number: 4574713
    Abstract: A pin for holding and/or cooling ceramic coating in hot reaction chambers is composed of a pin shaft and a pin cap which are connected with one another by a diffusion welding forming therebetween a homogeneous material connection possessing a high strength and high heat conductive properties.
    Type: Grant
    Filed: May 7, 1985
    Date of Patent: March 11, 1986
    Assignee: Krupp-Koppers GmbH
    Inventors: Klaus Kohnen, Norbert Ullrich, Reinhard Muller