Search Patents
  • LABYRINTH SEAL FOR TURBINES
    Publication number: 20150001812
    Abstract: An improved labyrinth seal is described with the seal including a group of several fins forming circumferential barriers against the flow of a working fluid between stationary and rotating parts in a turbine, wherein within the group the volume between the penultimate fin and the last fin is altered compared to the average volume between other adjacent fins of the group.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 1, 2015
    Inventors: Vasileios STEFANIS, Christos GEORGAKIS
  • Labyrinth seal for turbines
    Patent number: 9234434
    Abstract: An improved labyrinth seal is described with the seal including a group of several fins forming circumferential barriers against the flow of a working fluid between stationary and rotating parts in a turbine, wherein within the group the volume between the penultimate fin and the last fin is altered compared to the average volume between other adjacent fins of the group.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: January 12, 2016
    Assignee: ALSTOM Technology Ltd
    Inventors: Vasileios Stefanis, Christos Georgakis
  • LABYRINTH SEAL
    Publication number: 20120025472
    Abstract: A labyrinth seal has a plurality of arcuate labyrinth seal segments 14 in which the confronting ends of adjacent arcuate labyrinth seal segments 14 have planar faces 26 which are oriented radially and axially but which are canted away from a strictly axial orientation 28 by a cant angle. A plurality of arcuate brush seal segments 16 may be retained in the plurality of arcuate labyrinth seal segments 14, thereby forming a combined labyrinth and brush seal.
    Type: Application
    Filed: May 19, 2011
    Publication date: February 2, 2012
    Inventors: Wilhelm Reiter, Christos Georgakis, Ivan Ramirez, Venkatesan Palaniappan