Patents by Inventor Siegfried Boettcher

Siegfried Boettcher 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).

  • Nozzle ring for a gas turbine
    Patent number: 6431830
    Abstract: A worked nozzle ring for a gas turbine, in particular an aircraft engine, having at least one shroud and at least one blade sheet arranged thereon, whereby, in order to create a worked nozzle ring that is easy to manufacture, the blade sheet comprises, at the frontal side, at least one two-dimensionally profiled connecting space region that is placed in a profiled opening formed in the shroud by beam cutting and is connected therewith.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: August 13, 2002
    Assignee: MTU Motoren-und Turbinen München GmbH
    Inventors: Karl-Hermann Richter, Josef Reischl, Hans Juergen Schmuhl, Klaus Breitschwerdt, Ulrich Knott, Siegfried Boettcher, Karlheinz Manier, Werner Humhauser
  • Nozzle ring for a gas turbine and method of manufacture thereof
    Patent number: 6119339
    Abstract: A worked nozzle ring for a gas turbine, in particular an aircraft engine, having at least one shroud and at least one blade sheet arranged thereon, whereby in order to create a worked nozzle ring that is easy to manufacture, the blade sheet comprises, at the frontal side, at least one two-dimensionally profiled connecting space region that is placed in a profiled opening formed in the shroud by means of beam cutting and is connected therewith.
    Type: Grant
    Filed: March 29, 1999
    Date of Patent: September 19, 2000
    Assignee: MTU Motoren-und Turbinen-Union Munchen GmbH
    Inventors: Karl-Hermann Richter, Josef Reischl, Hans Juergen Schmuhl, Klaus Breitschwerdt, Ulrich Knott, Siegfried Boettcher, Karlheinz Manier, Werner Humhauser
  • Method of reducing the emission of toxic exhaust gas components in an internal combustion engine
    Patent number: 5184463
    Abstract: The invention is directed to a method wherein measures are initiated for accelerating the warm-up of the catalyzer even for a warm engine such as after a warm start thereof. In this way and when there is an interruption of operation, the cooling off of the engine and the catalyzer, which takes place at different rates, and the effect thereof on the conversion rate is opposed. As a consequence thereof, the emission of unwanted exhaust-gas components after a warm start is reduced.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: February 9, 1993
    Assignee: Robert Bosch GmbH
    Inventors: Ruediger Becker, Siegfried Boettcher, Andreas Franz