Regenerator cross arm seal assembly

Patent · Fri Jan 01 00:00:00 EST 1988

OSTI ID:866477

Jackman, Anthony V ^[1]

---

1. Indianapolis, IN

A seal assembly for disposition between a cross arm on a gas turbine engine block and a regenerator disc, the seal assembly including a platform coextensive with the cross arm, a seal and wear layer sealingly and slidingly engaging the regenerator disc, a porous and compliant support layer between the platform and the seal and wear layer porous enough to permit flow of cooling air therethrough and compliant to accommodate relative thermal growth and distortion, a dike between the seal and wear layer and the platform for preventing cross flow through the support layer between engine exhaust and pressurized air passages, and air diversion passages for directing unregenerated pressurized air through the support layer to cool the seal and wear layer and then back into the flow of regenerated pressurized air.

• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4720969
• OSTI ID: 866477
• Country of Publication: United States
• Language: English

Related Subjects

regenerator
arm
seal
assembly
disposition
gas
turbine
engine
block
disc
including
platform
coextensive
wear
layer
sealingly
slidingly
engaging
porous
compliant
support
permit
flow
cooling
air
therethrough
accommodate
relative
thermal
growth
distortion
dike
preventing
exhaust
pressurized
passages
diversion
directing
unregenerated
cool
regenerated
air passage
thermal growth
engine block
pressurized air
cooling air
seal assembly
turbine engine
gas turbine
assembly including
support layer
engine exhaust
regenerator disc
air passages
relative thermal
arm seal
/60/165/