Patents by Inventor Alfred Schlemenat

Alfred Schlemenat 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).

  • Publication number: 20030015877
    Abstract: The invention relates to a wind power plant with a tower (2), with a rotor shaft (7) rotating in a gondola (5), and with rotor blades (8) on which wind forces act on the rotor shaft (7). It is characterized in that a carrying structure (10) disposed on the underside of the gondola (5) extends inside the tower (2) vertically relative to the fastening point (1) and is connected with the gondola (5) so as to be rotation-proof and torsion-proof relative to the gondola and forming a functional unit (11) with the gondola. In order to improve the dynamic carrying behavior, components for converting the mechanical energy into another form of energy, a plurality of generators (15′), for example, are disposed on the carrying structure (10). The rotor shaft (7) extends from the windward side to the leeward side. The gondola (5) is provided with conventional and cost-effective bearings (12, 12′) on the windward and leeward sides. An optimal flux of force is achieved.
    Type: Application
    Filed: July 16, 2002
    Publication date: January 23, 2003
    Inventor: Alfred Schlemenat
  • Patent number: 6099198
    Abstract: A axially split casing with flange connection of two casing halves, wherein the casing upper part (1) is bolted to the casing lower part (2) with split line bolts (5) on the circumference of the axial split line flange (3). An axially divided casing extension (9), which is surrounded by a coaxially arranged axially unsplit ring (11) on the outer circumference, is arranged at one or both end faces (4) of the casing upper part (1) and the casing lower part (2) in the area of the casing axis (8). Wedge-shaped tensioning elements (14), which are tensioned by means of tension bolts (15) between surfaces (13) arranged in the ring (11) and countersurfaces (12) of the collar (10) of the casing extension (9), may be additionally arranged between surfaces (12, 13) arranged in the ring (11) and the collar (10) of the casing extension (9).
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: August 8, 2000
    Assignee: GHH Borsig Turbomaschinen GmbH
    Inventors: Joachim Kotzur, Alfred Schlemenat, Gerd-Ulrich Woelk
  • Patent number: 5782576
    Abstract: A connection of rotationally symmetrical components, in which minimal overturning torques and consequently minimal deformations of the supporting components are generated by generating the smallest, theoretically possible lever arm, on which the forces of the connection to be transmitted act. As a result, a nonpositive and positive-locking connection is obtained, in which the bolts no longer represent the dominantly loaded component. The maintenance and testing of the bolts is considerably reduced in all connections. Optimal flux of forces through the components close to the line of force application is achieved in the case of the tensioning of large rolling bearings. The requirements in terms of concentration of the contact pressure of the bearing tensioning in the vicinity of the line of force application are satisfied. In the case of a flange connection, optimal conditions are provided for tightness, besides a more economical manufacture, compared with the prior-art designs.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: July 21, 1998
    Inventors: Alfred Schlemenat, Walter Langhoff
  • Patent number: 5186247
    Abstract: The present invention pertains to a tubular heat exchanger for operation at high gas temperature and high pressures with heat exchanger tubes, which are coiled on the greater section of their linear extension. Further, the tube bottoms have tie rods, which brace the tube bottoms. The tie rods (3) of a graduated circle (1a, 1b) are connected at several points in the longitudinal direction by rings (5) into a cage. The tie rods (3) are flattened (3a) in the area of the rings (5). The tubes arranged on the adjacent graduated circle are connected to one another in the coiled area (2a) by means of angular plates (4) in pairs in the area of the rings (5). The connection to the angular plates (4) is such that, the tube form a hollow-cylinder-shaped tube cage. At least three guiding plates (6, 6a) are arranged in each area of uncoiled tubes (2b).
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: February 16, 1993
    Assignee: Man Gutehoffnungshutte AG
    Inventor: Alfred Schlemenat
  • Patent number: 4852644
    Abstract: A tubular heat exchanger for operation at high gas temperatures and high jacket pressures include tube sheets which are exposed to high loads so that both sheets are kept thin and tie rods bracing the tube sheets are arranged on at least every other graduated circle of a plurality of graduated circles or tubes and tie rods. The heat exchanger tubes arranged between the tube sheets have a helical shape in an intermediate or central region. The heat exchanger design can be used, for example, as a cracked gas cooler.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: August 1, 1989
    Assignee: Man Gutehoffnungshuette GmbH
    Inventors: Alfred Schlemenat, Helmut David