Component of a flow machine
First Claim
1. A component of a flow machine, comprising:
- a cooling channel through which cooling medium can flow, said cooling channel having a wall and at least one deflection being formed by the wall of the cooling channel;
said cooling channel having a first channel section and a downstream second channel section, and the flow of the cooling medium being deflected from the first channel section into the downstream second channel section by the at least one deflection;
at least one flow guiding element being arranged in the cooling channel in the region of the deflection, the at least one flow guiding element dividing the cooling channel in the deflection into an inner and an outer flow channel, at least one outlet bore being formed in the outer flow channel in the wall of the cooling channel and arranged in the corner regions of the deflection, and a small portion of the cooling medium can emerge from the cooling channel through the at least one outlet bore; and
the inner flow channel having a constriction in a flow cross section of the inner flow channel.
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Accused Products
Abstract
The present invention relates to a component of a flow machine, particularly a turbine blade, which has a cooling channel (9, 10) through which cooling medium can flow, with at least one deflection (5) formed by the wall (11, 12) of the cooling channel, by means of which deflection the flow of the cooling medium from a first channel section (9) is deflected into a second channel section (10) situated downstream. At least one flow guiding element (8) is arranged in the cooling channel in the region of the deflection, and divides the cooling channel into an inner (13) and an outer (14) flow channel. In the present component, the inner flow channel (13) has a constriction in the flow cross section. By the proposed configuration of the cooling channel deflection, the pressure loss brought about by the deflection is minimized and simultaneously a distinctly more homogeneous heat transfer is attained to the cooling medium, without local temperature peaks.
45 Citations
11 Claims
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1. A component of a flow machine, comprising:
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a cooling channel through which cooling medium can flow, said cooling channel having a wall and at least one deflection being formed by the wall of the cooling channel;
said cooling channel having a first channel section and a downstream second channel section, and the flow of the cooling medium being deflected from the first channel section into the downstream second channel section by the at least one deflection;
at least one flow guiding element being arranged in the cooling channel in the region of the deflection, the at least one flow guiding element dividing the cooling channel in the deflection into an inner and an outer flow channel, at least one outlet bore being formed in the outer flow channel in the wall of the cooling channel and arranged in the corner regions of the deflection, and a small portion of the cooling medium can emerge from the cooling channel through the at least one outlet bore; and
the inner flow channel having a constriction in a flow cross section of the inner flow channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification