Patents by Inventor Andre Schrief

Andre Schrief 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: 9494054
    Abstract: An auxiliary steam generator system for a power plant, comprising a water-steam circuit, which has a condensate line and a feed-water line, wherein a condensate pump is connected in the condensate line and a feed-water pump is connected in the feed-water line, and wherein a pressure accumulating vessel is connected between the condensate pump and the feed-water pump, and wherein a feed-water take-off line is connected to the water-steam circuit at a branch-off point after the pressure accumulating vessel is provided. The feed-water take-off line is connected to the pressure accumulating vessel and a heating device is connected in the feed-water take-off line.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: November 15, 2016
    Assignee: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Heiner Edelmann, Mark Reissig, Marc Sattelberger, Andre Schrief
  • Publication number: 20150000276
    Abstract: An auxiliary steam generator system for a power plant, comprising a water-steam circuit, which has a condensate line and a feed-water line, wherein a condensate pump is connected in the condensate line and a feed-water pump is connected in the feed-water line, and wherein a pressure accumulating vessel is connected between the condensate pump and the feed-water pump, and wherein a feed-water take-off line is connected to the water-steam circuit at a branch-off point after the pressure accumulating vessel is provided. The feed-water take-off line is connected to the pressure accumulating vessel and a heating device is connected in the feed-water take-off line.
    Type: Application
    Filed: December 4, 2012
    Publication date: January 1, 2015
    Inventors: Heiner Edelmann, Mark Reissig, Marc Sattelberger, Andre Schrief
  • Patent number: 7516719
    Abstract: A steam generator comprising a combustion chamber having funnel-shaped side walls in the bottom area thereof and an encircling wall formed from a plurality of steam generator pipes through which a flow medium can flow, wherein there area as little temperature differences as possible in the flow medium at the output of the steam generator pies. The steam generator pipes are, more particularly, arranged in the lower section forming the funnel-shaped side walls such that they are exposed to heat in as homongenous a manner as possible. According to the invention, the diameter of a number of steam generator pipes in the region of the funnel shaped side walls is different from that in the region of the encircling wall.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: April 14, 2009
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rudolf Kral, Andre Schrief, Frank Thomas
  • Publication number: 20070144456
    Abstract: A steam generator comprising a combustion chamber having funnel-shaped side walls in the bottom area thereof and an encircling wall formed from a plurality of steam generator pipes through which a flow medium can flow, wherein there area as little temperature differences as possible in the flow medium at the output of the steam generator pies. The steam generator pipes are, more particularly, arranged in the lower section forming the funnel-shaped side walls such that they are exposed to heat in as homongenous a manner as possible. According to the invention, the diameter of a number of steam generator pipes in the region of the funnel shaped side walls is different from that in the region of the encircling wall.
    Type: Application
    Filed: October 26, 2004
    Publication date: June 28, 2007
    Inventors: Rudolf Kral, Andre Schrief, Frank Thomas