Devices used for guiding the structural elements into the holes located in the wall of turbomachine combustion chamber, the combustion chamber of gas turbine engines and gas turbine engine comprising the above apparatus

摘要

1. The apparatus used for guiding the component into the hole drilled in the wall of the combustion chamber (10) of a gas turbine engine including a cuff (50) and the bush (52) coaxially arranged one inside the other; wherein the sleeve is adapted to receive inside it coaxially structural member and comprises an annular projecting edge (60) which is put at an angle of 90 ° in an inner annular groove (62) of the bush (52) adapted to attach to the edge of the opening (46) in the outer wall of the combustion chamber (10); wherein the cuff (50) and the bush (52) formed around the element an annular cylindrical channel (76) having (10) exit into a chamber, characterized in that it comprises means (82, 86, 88, 90, 96) circulation air generated in the cuff (50) and / or in the sleeve coupling (52) and uniformly dispersed around the circumference for providing outside air through the cylindrical channel (76) inside the combustion chamber (10), wherein the air circulation means comprise through holes (88) drilled in the annular projecting edge (60) cuff (50) and dispersed evenly on the circumference of the cuff (50) and connected to an annular cylindrical channel (76) .2. The apparatus according to claim 1, characterized in that the bush (52) comprises a cylinder wall (72) defining the outer dimensions of the cylindrical channel (76) formed around the element outside the combustion chamber (10), wherein the air circulation means comprise through holes (82) formed in the cylinder wall (72) of the bush (52) and dispersed evenly on the circumference of the sleeve m