Abstract: A device and method for measuring the spacing between adjacent airfoils. A notched member engages a trailing edge of one of the adjacent airfoils with the notched member being rotatable about the one airfoil trailing edge. A wheel is rollable across the surface of the other airfoils while moving in a first direction toward and away from the notched member, and biased away from the notched member. A gauge secured to the notched member measures the distance of the guide from the notched member in the first direction.
Abstract: A gas leakage seal for a turbine, including first and second cloth layers having woven warp and weft wires, wherein the first and second cloth layers are brazed together by a flux paste whereby the cloth layers have their edges aligned and the brazing substantially seals gaps between the wires along substantially the entire length and width of the brazed together cloth layers. Weld beads having a thickness greater than the combined thickness of the brazed together cloth layers connect the edges of the cloth layers along their length. The turbine includes two members with aligned recesses in which opposite of the weld beads are received. The seal is made by brushing a nickel and/or cobalt based flux paste on one side of one of the cloth layers, brazing that cloth layer to a side of the second cloth layer to substantially seal the gaps between the wires, and creating weld beads with an electron beam to connect the edges of the cloth layers along their length.
Type:
Grant
Filed:
June 27, 2011
Date of Patent:
April 15, 2014
Assignee:
Turbine Services Ltd.
Inventors:
Vincent T. Riggi, Jr., Barry Monshower, Justin D. Hyslop
Abstract: A leakage seal for use in a gas path between two relatively rotatable members of a gas turbine comprises a foil layer and a cloth layer. The foil layer has two expansive surfaces, a single one of which is covered by the cloth layer. The leakage seal has a proximal end, a distal end, and a generally flat region between the proximal and distal ends. The proximal end is attached to an associated one of the turbine members. The distal end diverges from the generally flat region so as to define a curved hook, along which the cloth portion is wrapped over the foil layer, when the distal end is viewed in cross-section.
Abstract: As used to connect a combustor of a gas turbine to a stage of the gas turbine, a transition piece has a generally tubular body, an inlet to receive hot gases from the combustor, and an outlet to discharge the gases. The transition piece has a frame, which surrounds the outlet, and two mounting connectors, which are spaced from each other and which extend from the frame, away from the outlet. The mounting connectors are welded to a pedestal, which is formed unitarily with the frame so as to extend partially but not completely around the outlet.
Type:
Grant
Filed:
August 9, 2005
Date of Patent:
May 27, 2008
Assignee:
Turbine Services, Ltd.
Inventors:
Vincent T. Riggi, Jr., Ronald A. Riggi, Warren Peck, Martin Harr