Enhanced film cooling slot for turbine blade outer air seals

Details Enhanced film cooling slot for turbine blade outer air seals Enhanced film cooling slot for turbine blade outer air seals

1993-11-22

1997-07-22

Kwon, John T.

Rotary kinetic fluid motors or pumps

With passage in blade, vane, shaft or rotary distributor...

415116, F01D 518

Patent

active

056498063

ABSTRACT:
This disclosure describes a cooling enhancement for gas turbine engine outer air seals. The invention provides heat transfer using impingement cooling and convective cooling through the use of tortuous cooling air passages, and film effective film cooling through the use of cooling air discharge slots that are oriented so as to discharge coolant into the working fluid flowpath with a minimum of momentum exchange between the cooling air and the working fluid.

REFERENCES:
patent: 4013376 (1977-03-01), Bisson et al.
patent: 4017213 (1977-04-01), Przirembel
patent: 4732531 (1988-03-01), Minoda et al.
patent: 5030060 (1991-07-01), Laing
patent: 5092735 (1992-03-01), Katy et al.
patent: 5169287 (1992-12-01), Proctor
patent: 5197852 (1993-03-01), Walker et al.

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