Patents by Inventor Markku Roppo

Markku Roppo 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).

  • Reheating steam temperature control
    Patent number: 7331181
    Abstract: A heat control system of reheating steam of a power plant, in which method the reheating steam (S3) is superheated in a reheater in a first reheating stage and a second reheating stage. The steam (S6) superheated in the first reheating stage is directed via a heat exchanger (22) to the second reheating stage, and the temperature of the steam decreases in the heat exchanger. In addition, the invention relates to a heat control system and a power plant.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: February 19, 2008
    Assignee: Metso Power Oy
    Inventor: Markku Roppo
  • Partition wall structure of a furnace
    Publication number: 20070266915
    Abstract: A fluidized bed boiler, which comprises at least a furnace defined by walls, a grate and a roof, as well as a bed ash cooler. In addition, the fluidized bed boiler comprises at least a primarily vertical partition wall between the grate and the roof, and at least one of the walls of the bed ash cooler is formed of a part of the partition wall.
    Type: Application
    Filed: May 18, 2007
    Publication date: November 22, 2007
    Applicant: Metso Power Oy
    Inventors: Markku Roppo, Pekka Lehtonen, Tero Luomaharju
  • Reheating steam temperature control
    Publication number: 20060248891
    Abstract: A heat control system of reheating steam of a power plant, in which method the reheating steam (S3) is superheated in a reheater in a first reheating stage and a second reheating stage. The steam (S6) superheated in the first reheating stage is directed via a heat exchanger (22) to the second reheating stage, and the temperature of the steam decreases in the heat exchanger. In addition, the invention relates to a heat control system and a power plant.
    Type: Application
    Filed: May 2, 2006
    Publication date: November 9, 2006
    Applicant: KVAERNER POWER OY
    Inventor: Markku Roppo