Impingement system for an airfoil
First Claim
1. An airfoil comprising:
- an exterior wall comprising an inner surface, an outer surface, and a plurality of exterior wall regions, said exterior wall defining a first interior space, said exterior wall further comprising;
a pressure sidewall; and
a suction sidewall coupled to said pressure sidewall, wherein said suction sidewall and said pressure sidewall define a leading edge and a trailing edge opposite said leading edge;
a root portion;
a tip portion opposite said root portion;
a triple trailing edge pin bank disposed within said first interior space;
a first impingement system disposed within said first interior space and a second impingement system disposed within said first interior space, said first and second impingement systems configured to channel a coolant stream to said exterior wall, said first impingement system comprising a first interior wall portion substantially parallel to said exterior wall and defining a second interior space, said first interior wall portion further defines a plurality of first impingement holes configured to channel a flow of coolant from said second interior space to said first interior space, said first interior wall portion having a first impingement hole density, said second impingement system comprising a second interior wall portion substantially parallel to said exterior wall and defining a third interior space, said second interior wall portion further defines a plurality of second impingement holes configured to channel a flow of coolant from said third interior space to said first interior space, said second interior wall portion having a second impingement hole density; and
a plurality of dividing walls comprising a first dividing wall and a second dividing wall extending from said first and second interior wall portions to said exterior wall, said first and second interior wall portions, said exterior wall, and said plurality of dividing walls define a first zone and a second zone, said first zone and said second zone coupled in flow communication, wherein said first and second impingement hole densities are each configured to separately meter flow to said first and second zones, wherein said exterior wall further defines a plurality of film holes configured to separately meter flow to said first and second zones by channeling the flow of coolant from said first interior space.
2 Assignments
0 Petitions
Accused Products
Abstract
An airfoil includes an exterior wall, a triple trailing edge pin bank, and first and second impingement systems. The exterior wall defines a first interior space. A segmenting wall divides the first interior space into a second and a first interior space. The first impingement system is disposed within the first interior space and the second impingement system is disposed within the first interior space. First impingement system includes impingement holes with a first impingement hole density. Second impingement system includes impingement holes with a second impingement hole density. The impingement systems also include dividing walls extending from a first and second interior wall to the exterior wall. The interior walls, exterior wall, and dividing walls define a first and second zone. The first and second impingement hole density is configured to separately meter flow to the first and second zones.
59 Citations
14 Claims
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1. An airfoil comprising:
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an exterior wall comprising an inner surface, an outer surface, and a plurality of exterior wall regions, said exterior wall defining a first interior space, said exterior wall further comprising; a pressure sidewall; and a suction sidewall coupled to said pressure sidewall, wherein said suction sidewall and said pressure sidewall define a leading edge and a trailing edge opposite said leading edge; a root portion; a tip portion opposite said root portion; a triple trailing edge pin bank disposed within said first interior space; a first impingement system disposed within said first interior space and a second impingement system disposed within said first interior space, said first and second impingement systems configured to channel a coolant stream to said exterior wall, said first impingement system comprising a first interior wall portion substantially parallel to said exterior wall and defining a second interior space, said first interior wall portion further defines a plurality of first impingement holes configured to channel a flow of coolant from said second interior space to said first interior space, said first interior wall portion having a first impingement hole density, said second impingement system comprising a second interior wall portion substantially parallel to said exterior wall and defining a third interior space, said second interior wall portion further defines a plurality of second impingement holes configured to channel a flow of coolant from said third interior space to said first interior space, said second interior wall portion having a second impingement hole density; and a plurality of dividing walls comprising a first dividing wall and a second dividing wall extending from said first and second interior wall portions to said exterior wall, said first and second interior wall portions, said exterior wall, and said plurality of dividing walls define a first zone and a second zone, said first zone and said second zone coupled in flow communication, wherein said first and second impingement hole densities are each configured to separately meter flow to said first and second zones, wherein said exterior wall further defines a plurality of film holes configured to separately meter flow to said first and second zones by channeling the flow of coolant from said first interior space. - View Dependent Claims (2, 3, 4, 5)
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6. A system for removing heat from an airfoil, the airfoil including a triple trailing edge pin bank and an exterior wall including an inner surface, an outer surface, and a plurality of exterior wall regions, the exterior wall defining a first interior space, the exterior wall comprising a pressure sidewall, a suction sidewall coupled to the pressure sidewall, wherein the suction sidewall and the pressure sidewall define a leading edge and a trailing edge opposite the leading edge, the airfoil further including a root portion and a tip portion opposite the root portion, said system comprising:
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a first impingement system disposed within said first interior space and a second impingement system disposed within said first interior space, said first and second impingement systems configured to channel a coolant stream to said exterior wall, said first impingement system comprising a first interior wall portion substantially parallel to said exterior wall and defining a second interior space, said first interior wall portion further defines a plurality of first impingement holes configured to channel a flow of coolant from said second interior space to said first interior space, said first interior wall portion having a first impingement hole density, said second impingement system comprising a second interior wall portion substantially parallel to said exterior wall and defining a third interior space, said second interior wall portion further defines a plurality of second impingement holes configured to channel a flow of coolant from said third interior space to said first interior space, said second interior wall portion having a second impingement hole density; and a plurality of dividing walls comprising a first dividing wall and a second dividing wall extending from said first and second interior walls to said exterior wall, said first and second interior wall portions, said exterior wall, and said plurality of dividing walls define a first zone and a second zone, said first zone and said second zone coupled in flow communication, wherein said first and second impingement hole densities are each configured to separately meter flow to said first and second zones, wherein the exterior wall further defines a plurality of film holes configured to separately meter flow to said first and second zones by channeling the flow of coolant from said first interior space. - View Dependent Claims (7, 8, 9)
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10. A gas turbine system, said gas turbine system comprising:
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a compressor section; a combustion system coupled in flow communication with said compressor section; and a turbine section coupled in flow communication with said combustion system, wherein said turbine section comprises; an airfoil comprising; an exterior wall comprising an inner surface, an outer surface, and a plurality of exterior wall regions, said exterior wall defining a first interior space, said exterior wall further comprising; a pressure sidewall; and a suction sidewall coupled to said pressure sidewall, wherein said suction sidewall and said pressure sidewall define a leading edge and a trailing edge opposite said leading edge; a root portion; a tip portion opposite said root portion; a triple trailing edge pin bank disposed within said first interior space; a first impingement system disposed within said first interior space and a second impingement system disposed within said first interior space, said first and second impingement systems configured to channel a coolant stream to said exterior wall, said first impingement system comprising a first interior wall portion substantially parallel to said exterior wall and defining a second interior space, said first interior wall portion further defines a plurality of first impingement holes configured to channel a flow of coolant from said second interior space to said first interior space, said first interior wall portion having a first impingement hole density, said second impingement system comprising a second interior wall portion substantially parallel to said exterior wall and defining a third interior space, said second interior wall portion further defines a plurality of second impingement holes configured to channel a flow of coolant from said third interior space to said first interior space, said second interior wall having a second impingement hole density; and a plurality of dividing walls comprising a first dividing wall and a second dividing wall extending from said first and second interior wall portions to said exterior wall, said first and second interior wall portions, said exterior wall, and said plurality of dividing walls define a first zone and a second zone, said first zone and said second zone coupled in flow communication, wherein said first and second impingement hole densities are each configured to separately meter flow to said first and second zones , wherein said exterior wall further defines a plurality of film holes configured to separately meter flow to said first and second zones by channeling the flow of coolant from said first interior space. - View Dependent Claims (11, 12, 13, 14)
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Specification