Cooled components with conical cooling passages

Details Cooled components with conical cooling passages Cooled components with conical cooling passages

2005-08-02

2005-08-02

Ciric, Ljiljana (Department: 3753)

Heat exchange

Structural installation

C165S168000, C416S09600A, C415S115000, C415S116000, C029S889721

Reexamination Certificate

active

06923247

ABSTRACT:
A thermally highly loaded machine component (10), which is protected from overheating by film cooling, is provided with conical cooling passages (30) of circular cross section. The cooling passages are designed so as to be divergent from the cold-gas side (13) toward the hot-gas side. The conical cooling passages, as compared with cylindrical passages with regard to the mass flow of cooling medium (35) fed through the cooling passages, are substantially less dependent on the pressure ratio between the cold-gas side (13) and hot-gas side (14) of the component. The straight conical cooling passages of round cross section throughout may be produced in a very simple manner by laser drilling, with a convergent cutting beam being used for the machining.

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