Title: Apparatus for sealing a gas turbine flow path

Abstract: Apparatus forming a portion of the outer wall of the flow path for working medium gases in the turbine section of a gas turbine engine is disclosed. The vanes of each turbine stage are grouped into a plurality of vane clusters which are circumferentially disposed in adjacent relationship about the flow path. A shroud which surrounds the tips of the rotor blades immediately upstream of the vane clusters is segmented in integral ratio to the number of vane clusters. The gap between each pair of adjacent vane clusters is circumferentially positioned in axial alignment with one of the gaps between adjacent shroud segments.

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Inventors: Brown, Henry Bispham (Manchester, CT, US)
DeTolla, Francis Louis (Vernon, CT, US)

Application Number: 585283
Filing Date: 1975-06-09
Publication_date: 1976-08-17
Assignee: United Technologies Corporation (Hartford, CT)
Primary Class(es): 415/116 415/178, 415/209.3
Other Classes:
US Patent Ref:

2859934	Nov, 1958	Halford et al.	415/116.
3295824	Jan, 1967	Woodwell et al.	415/178.
3742705	Jul, 1973	Sifford	415/117.
3892497	Jul, 1975	Gunderlock et al.	415/217.

Other Refs: 679,916760,884790,854

Sep, 1952	UK
Nov, 1956	UK
Feb, 1958	UK

Primary Examiner: Raduazo, Henry F.
Assistant Examiner:
Attorney: Walker; Robert C.