Turbine blade with multi-pass cooling and cooling air addition

Details Turbine blade with multi-pass cooling and cooling air addition Turbine blade with multi-pass cooling and cooling air addition

1997-12-17

2000-10-31

Ryznic, John E.

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

Changing state mass within or fluid flow through working...

415115, B63H 114, F01D 514

Patent

active

061392693

ABSTRACT:
A convectively cooled turbine blade has two distinct cooling air passage systems. The first system cools the blade leading edge and emits cooling air through outlet passageways in the leading edge arranged in showerhead array. The second system includes a five-pass series flow passage comprising five cooling passage sections that extend in series through the remainder of the blade. Cooling air resupply passages inject additional cooling air into the third and fifth cooling passage sections.

REFERENCES:
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patent: 5387086 (1995-02-01), Frey et al.
patent: 5403159 (1995-04-01), Green et al.
patent: 5462405 (1995-10-01), Hoff et al.
patent: 5488825 (1996-02-01), Davis et al.
patent: 5690472 (1997-11-01), Lee
patent: 5738493 (1998-04-01), Lee et al.
patent: 5827043 (1998-10-01), Fukuda et al.

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