COMPOUND COOLING FLOW TURBULATOR FOR TURBINE COMPONENT
First Claim
1. A turbine component with an interior cooling surface comprising:
- a first turbulation feature comprising a first transverse sectional area;
a smaller turbulation feature formed on said first turbulation feature, the smaller turbulation feature comprising a smaller transverse sectional area that is less than ⅓
of the first transverse sectional area.
3 Assignments
0 Petitions
Accused Products
Abstract
Multi-scale turbulation features, including first turbulators (46, 48) on a cooling surface (44), and smaller turbulators (52, 54, 58, 62) on the first turbulators. The first turbulators may be formed between larger turbulators (50). The first turbulators may be alternating ridges (46) and valleys (48). The smaller turbulators may be concave surface features such as dimples (62) and grooves (54), and/or convex surface features such as bumps (58) and smaller ridges (52). An embodiment with convex turbulators (52, 58) in the valleys (48) and concave turbulators (54, 62) on the ridges (46) increases the cooling surface area, reduces boundary layer separation, avoids coolant shadowing and stagnation, and reduces component mass.
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Citations
15 Claims
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1. A turbine component with an interior cooling surface comprising:
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a first turbulation feature comprising a first transverse sectional area; a smaller turbulation feature formed on said first turbulation feature, the smaller turbulation feature comprising a smaller transverse sectional area that is less than ⅓
of the first transverse sectional area. - View Dependent Claims (2, 3, 4)
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5. A turbine component with an interior cooling surface comprising:
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a first plurality of first convex turbulation features separated by first valleys; a second plurality of smaller turbulation features formed on each of said first convex turbulation features; a third plurality of smaller turbulation features formed on said first valleys. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A turbine component with a cooling surface comprising at least one of the group of:
- a relatively smaller convex surface feature formed on a relatively larger concave surface feature; and
, a relatively smaller concave surface feature formed on a relatively larger convex surface feature. - View Dependent Claims (13, 14, 15)
- a relatively smaller convex surface feature formed on a relatively larger concave surface feature; and
Specification