GAS TURBINE STATOR CIRCULAR HOUSING AND CIRCULAR HOUSING SEGMENT Russian patent published in 2009 - IPC F01D11/00 F01D25/24 

FIELD: engines and pumps.

SUBSTANCE: fixed circular component forming the enclosure that envelopes gas turbine rotor comprises segments with their adjacent side faces butt-jointed via sealing devices. The latter comprise at least one axial sealing insert and at least one radial sealing insert arranged in at least axial groove and at least one radial groove arranged opposite each other in adjacent side faces of segments. Radial groove has at least one its end adjoining axial groove. The latter features width exceeding radial groove depth. Axial sealing insert features width exceeding that of radial sealing insert. Another invention of proposed set relates to segment of aforesaid fixed circular component furnished with at least one axial groove and at least one radial groove made on its side faces. Radial groove one end adjoins axial groove. Axial groove or axial grooves of the segment side faces feature larger depth than that of radial groove or radial grooves, respectively.

EFFECT: higher efficiency of gas turbine, reduced amount of cooling air.

6 cl, 5 dwg