INTERSTAGE SEAL HOUSING OPTIMIZATION SYSTEM IN A GAS TURBINE ENGINE

摘要

An interstage seal system (10) for adjusting the position of an interstage seal during operation of a gas turbine engine (14) to increase efficiency of the seal (12) is disclosed. The interstage seal system (10) may include a interstage seal housing (16) formed from a circumferentially extending housing having a seal (12) positioned on a radially inward surface (18) of the interstage seal housing (16). The interstage seal housing (16) may biased radially outward via one or more springs (20) to bias the radially inward surface (18) of the interstage seal housing (16) outwardly. The interstage seal housing (16) may reside in an interstage housing receiving cavity (68). The cavity (68) may be supplied with gases at a higher pressure than on the other side (24) of the seal housing (16) during turbine engine operation. As such, the interstage seal housing (16) is forced radially inwardly to close the gap (26) within the seal (12) as the high pressure force directed radially inward overcomes the spring bias directed radially outward.