Component having a cooling arrangement

Details Component having a cooling arrangement Component having a cooling arrangement

2005-08-09

2008-10-21

Edgar, Richard (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

With heating, cooling or thermal insulation means

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

Reexamination Certificate

active

07438528

ABSTRACT:
A component such as a turbine blade for a gas turbine engine has a cooling arrangement comprising a supply passage18within the blade from which extend cooling passages28of a first array which open at discharge openings29, for example at a trailing edge of the blade. Cooling passages30of a second array extend into the blade from discharge openings31, and intersect the passages28.The passages30terminate short of the supply passage18.As a result of this arrangement, the limiting flow area for cooling air is defined by the cooling passages28of the first array, and is not affected by the accuracy with which the cooling passages30of the second array intersect the cooling passages28of the first array.

REFERENCES:
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patent: 6325593 (2001-12-01), Darkins et al.
patent: 6422819 (2002-07-01), Tsai et al.

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