Segmented fluid seal assembly

Abstract

A rotor assembly for a turbine engine includes a rotor disk having rotor blades mounted about the circumference and rotatable about a central longitudinal axis. A fluid seal extends about the circumference of the rotor disk in close proximity to a stationary component to separate the space between the rotor blades and a stationary component into separate cavities. The fluid seal includes a plurality of disk seal segments and a plurality of blade seal segments. The disk seal segments each attach to the rotor disk between the rotor blades. The blade seal segments attach to the blades. After the blades are assembled the blade seal segments and the disk seal segments align to form a segmented, ring-like fluid seal around the circumference of the rotor disk.

1 . A bladed rotor assembly comprising:
 a rotor disk defining a disk rim and having a plurality of rotor blades mounted to the disk rim; and   a plurality of blade seal segments with one mounted to each of the plurality of rotor blades wherein the plurality of blade seal segments form a seal located about a circumference of the disk rim.   
   
   
       2 . The bladed rotor assembly of  claim 1 , wherein the seal further comprises a plurality of disk seal segments with one located between adjacent pairs of the blade seal segments. 
   
   
       3 . The bladed rotor assembly of  claim 2 , wherein the disk seal segments comprise a disk mounting feature and the disk rim comprises a complimentary shaped seal mounting feature to interfit with the disk mounting feature. 
   
   
       4 . The bladed rotor assembly of  claim 1 , wherein the blade seal segments each comprise a knife edge extending toward a stationary component. 
   
   
       5 . The bladed rotor assembly of  claim 4 , wherein the knife edges extend about the circumference of the disk rim to contact the knife edge of the adjacent blade seal segment forming a segmented, ring-like knife edge. 
   
   
       6 . The bladed rotor assembly of  claim 4 , wherein the stationary component is a tangential on-board injector, a support or a stator vane. 
   
   
       7 . The bladed rotor assembly of  claim 1 , wherein each of the plurality of blade seal segments comprise an attaching feature corresponding to a seal attaching portion of a rotor blade. 
   
   
       8 . The bladed rotor assembly of  claim 7 , wherein the disk rim comprises a plurality of blade slots each for receiving the rotor blade and the blade seal segment. 
   
   
       9 . A bladed rotor assembly comprising:
 a rotor disk defining a disk rim and having a plurality of rotor blades mounted to the disk rim; and   a plurality of blade seal segments with one mounted between each of the plurality of rotor blades and the disk rim; and   a plurality of disk seal segments mounted to the disk rim between adjacent pairs of the plurality of blade seal segments, wherein the plurality of blade seal segments and the plurality of disk seal segments align to form a seal located about the circumference of the disk rim.   
   
   
       10 . The bladed rotor assembly of  claim 9 , wherein the seal formed by the plurality of blade seal segments and the plurality of disk seal segments extends toward a stator component. 
   
   
       11 . The bladed rotor assembly of  claim 10 , wherein the stator component is a tangential on-board injector, a support or a stator vane. 
   
   
       12 . The bladed rotor assembly of  claim 9  wherein each of the plurality of blade seal segments comprise an attaching feature corresponding to a seal attaching portion of the rotor blades. 
   
   
       13 . The bladed rotor assembly of  claim 9 , the disk rim comprises a plurality of blade slots each for receiving the rotor blade and the blade seal segment. 
   
   
       14 . The bladed rotor assembly of  claim 9 , wherein the disk rim comprises a disk attaching feature corresponding to an attaching feature on the disk deal segment. 
   
   
       15 . A fluid seal assembly comprising:
 a plurality of blade seal segments each having a body defining a knife edge protruding from the body and towards a turbine engine component; and   a plurality of disk seal segments each having a body defining a knife edge protruding from the body and towards the turbine engine component, wherein the plurality of blade seal segments interfit with the plurality of disk seal segments to form a segmented, ring-like fluid seal.   
   
   
       16 . The fluid seal assembly of  claim 15 , comprising a blade attaching feature on each of the plurality of blade seal segments for attaching each blade seal segment to a rotor blade and a disk attaching feature on each of the plurality of disk seal segments for attaching each disk seal segment to a rotor disk 
   
   
       17 . The fluid seal assembly of  claim 15 , comprising a first interlocking feature on each of the plurality of blade seal segments and a second interlocking feature on each of the plurality of disk seal segments, wherein the first interlocking feature and the second interlocking feature on adjacent blade seal segments and disk seal segments are complimentary shaped and interfit with one another.