Center tie rotor seal
AssigneeRtx Corporation
InventorsKalpendu J. Parekh, Daniel L. Carminati, Rishon C. Saftler
Life of this patent
Estimating the term…
Abstract
A turbine engine rotor has a central shaft and a disk stack having disks encircling the shaft. A first piston seal ring in a first groove in the central shaft has an outer diameter (OD) surface facing or contacting an inner diameter (ID) surface of a disk of said plurality of disks. A second piston seal ring in a second OD groove in the central shaft has an OD surface facing or contacting said ID surface of the same said disk. Holes in the central shaft are between the first groove and the second groove. An additional seal is between the first groove and the holes.
Claims20
A turbine engine rotor comprising:
- a central shaft;
- and
- a disk stack having a plurality of disks encircling the shaft,
- and further comprising:
- a first piston seal ring in a first groove in the central shaft and having an outer diameter (OD) surface facing or contacting an inner diameter (ID) surface of a disk of said plurality of disks;
- a second piston seal ring in a second OD groove in the central shaft and having an OD surface facing or contacting said ID surface of the same said disk;
- a plurality of holes in the central shaft between the first groove and the second groove;
- and
- an additional seal between the first groove and the plurality of holes.
A turbine engine rotor comprising:
- a central shaft;
- and
- a disk stack having a plurality of disks encircling the shaft and held in compression by tension in the shaft,
- and further comprising:
- a first piston seal ring in a first groove in the central shaft and having an outer diameter (OD) surface facing or contacting an inner diameter (ID) surface of a first disk of said plurality of disks;
- a second piston seal ring in a second OD groove in the central shaft and having an OD surface facing or contacting said ID surface of the first disk;
- a first plurality of holes in the central shaft between the first groove and the second groove;
- and
- a second plurality of holes axially forward of said second groove and at least partially aft of a bore of a second disk immediately forward of said first disk.
A turbine engine rotor comprising:
- a central shaft;
- and
- a disk stack having a plurality of disks encircling the shaft and held in compression by tension in the shaft,
- and further comprising:
- a first piston seal ring in a first groove in the central shaft and having an outer diameter (OD) surface facing or contacting an inner diameter (ID) surface of a first disk of said plurality of disks;
- a plurality of holes in the central shaft
- a non-piston seal ring seal between the first groove and the plurality of holes.
Dependencies are inferred from the claim text.