Bushing retention system for thermal medium cooling delivery tubes in a gas turbine rotor

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874698

Mashey, Thomas Charles ^[1]

---

1. Coxsackie, NY

Bushings are provided in counterbores for wheels and spacers for supporting thermal medium cooling tubes extending axially adjacent the rim of the gas turbine rotor. The retention system includes a retaining ring disposed in a groove adjacent an end face of the bushing and which retaining ring projects radially inwardly to prevent axial movement of the bushing in one direction. The retention ring has a plurality of circumferentially spaced tabs along its inner diameter whereby the ring is supported by the lands of the tube maintaining its bushing retention function, notwithstanding operation in high centrifugal fields and rotation of the ring in the groove into other circular orientations.

• Research Organization: General Electric Co., Schenectady, NY (United States)
• DOE Contract Number: FC21-95MC31176
• Assignee: General Electric Company (Schenectady, NY)
• Patent Number(s): US 6443699
• OSTI ID: 874698
• Country of Publication: United States
• Language: English

Related Subjects

bushing
retention
thermal
medium
cooling
delivery
tubes
gas
turbine
rotor
bushings
provided
counterbores
wheels
spacers
supporting
extending
axially
adjacent
rim
retaining
disposed
groove
projects
radially
inwardly
prevent
axial
movement
direction
plurality
circumferentially
spaced
tabs
inner
diameter
supported
lands
tube
maintaining
function
notwithstanding
operation
centrifugal
fields
rotation
circular
orientations
gas turbine
axial movement
extending axially
tubes extend
cooling tube
axially adjacent
delivery tube
/416/