Rotary kinetic fluid motors or pumps – With passage in blade – vane – shaft or rotary distributor...
Patent
1990-07-02
1992-03-03
Kwon, John T.
Rotary kinetic fluid motors or pumps
With passage in blade, vane, shaft or rotary distributor...
415116, F01D 518
Patent
active
050927353
ABSTRACT:
An improved blade outer air cooling system for aircraft jet engines is disclosed. An integrated substrate backplate, cooling impingement plate and manifold replaces a conventional substrate backplate supporting a seal surface. A cooling impingement plate is mounted on the back of the backplate and a manifold is mounted over the impingement plate. The combined seal surface and new substrate outer air seal assembly attaches to the engine case structure through flange hooks formed as part of the manifold. A support supports the manifold inside the case structure and includes an opening for cooling air to enter an inlet into the manifold. A metal seal ring is compressed between the manifold and the support. The backplate includes holes for exhausting or purging cooling air after impinging on the backplate. The backplate, impingement plate and manifold may be welded, brazed or otherwise united together.
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Katy Jerome H.
Sifford Perry P.
Kwon John T.
Sinder Fredric L.
Singer Donald J.
The United States of America as represented by the Secretary of
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