Airfoil having a seal and an integral heat shield

Details Airfoil having a seal and an integral heat shield Airfoil having a seal and an integral heat shield

1994-03-31

1995-07-04

Look, Edward K.

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between axial flow runner and vane or vane diaphragm structure

4151744, 4151745, 415115, F01D 1100

Patent

active

054294789

ABSTRACT:
An airfoil for a gas turbine engine includes a platform having an integral heat shield extending over a seal. Various construction details are developed that disclose a heat shield that protects the seal structure from damage due to exposure to hot gases within the gas turbine engine. In a particular embodiment, a turbine vane includes a platform having a heat shield extending from the leading edge of the platform and a recess. The heat shield extends over the outward surface of a honeycomb seal that is disposed within the recess.

REFERENCES:
patent: 3689971 (1972-09-01), Davidson
patent: 4820116 (1989-04-01), Hovan et al.
patent: 5217348 (1993-06-01), Rup, Jr. et al.
patent: 5252026 (1993-10-01), Shepherd

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