Hole pattern for gas turbine combustor
First Claim
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1. A combustor for a turbine engine comprising:
- an outer liner having a row of circumferentially distributed outer combustion air holes including at least a major outer air hole having a first outer air hole size, an intermediate outer air hole having a second outer air hole size, and a minor outer air hole having a third outer air hole size, wherein said first, said second, and said third outer air hole sizes are all different from each other;
an inner liner circumscribed by said outer liner and having a row of circumferentially distributed inner combustion air holes including at least a major inner air hole having a first inner air hole size, an intermediate inner air hole having a second inner air hole size, and a minor inner air hole having a third inner air hole size, wherein said first, said second, and said third inner air hole sizes are all different from each other; and
wherein said circumferentially distributed outer combustion air holes are radially aligned with said circumferentially distributed inner combustion air holes such that at least one of said major outer, intermediate outer, and minor air holes is aligned with a different hole size of said major inner, intermediate inner, and minor inner air holes.
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Abstract
A combustor for a turbine engine includes an outer liner having a row of circumferentially distributed outer combustion air holes and an inner liner circumscribed by the outer liner and having a row of circumferentially distributed inner combustion air holes. The inner and outer liners each include at least a major air hole having a first hole size, an intermediate air hole having a second hole size, and a minor air hole having a third hole size. The first, second, and third hole sizes are all different from each other.
31 Citations
19 Claims
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1. A combustor for a turbine engine comprising:
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an outer liner having a row of circumferentially distributed outer combustion air holes including at least a major outer air hole having a first outer air hole size, an intermediate outer air hole having a second outer air hole size, and a minor outer air hole having a third outer air hole size, wherein said first, said second, and said third outer air hole sizes are all different from each other; an inner liner circumscribed by said outer liner and having a row of circumferentially distributed inner combustion air holes including at least a major inner air hole having a first inner air hole size, an intermediate inner air hole having a second inner air hole size, and a minor inner air hole having a third inner air hole size, wherein said first, said second, and said third inner air hole sizes are all different from each other; and wherein said circumferentially distributed outer combustion air holes are radially aligned with said circumferentially distributed inner combustion air holes such that at least one of said major outer, intermediate outer, and minor air holes is aligned with a different hole size of said major inner, intermediate inner, and minor inner air holes. - View Dependent Claims (2, 3, 4, 7, 8, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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5. A combustor for a turbine engine comprising:
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an outer liner having a row of circumferentially distributed outer combustion air holes including at least a major outer air hole having a first outer air hole size, an intermediate outer air hole having a second outer air hole size, and a minor outer air hole having a third outer air hole size, wherein said first, said second, and said third outer air hole sizes are all different from each other; an inner liner circumscribed by said outer liner and having a row of circumferentially distributed inner combustion air holes including at least a major inner air hole having a first inner air hole size, an intermediate inner air hole having a second inner air hole size, and a minor inner air hole having a third inner air hole size, wherein said first, said second, and said third inner air hole sizes are all different from each other; wherein said second outer and said second inner air hole sizes are smaller than said first outer and said first inner air hole sizes, and wherein said second outer and said second inner air hole sizes are greater than said third outer and said third inner air hole sizes; wherein said intermediate air holes are positioned circumferentially between said major air holes and said minor air holes; wherein said row of circumferentially distributed outer combustion air holes is comprised of a plurality of first hole sets, each first hole set including at least one minor air hole that is circumferentially spaced from one intermediate air hole that in turn is circumferentially spaced from one major air hole, and wherein each minor hole of one first hole set is circumferentially spaced from a major air hole of an immediately adjacent first hole set, and wherein said row of circumferentially distributed inner combustion air holes is comprised of a plurality of second hole sets, each second hole set including at least one minor air hole that is circumferentially spaced from one intermediate air hole that is circumferentially spaced from one major air hole, and wherein each minor hole of one second hole set is circumferentially spaced from a major air hole of an immediately adjacent second hole set; and wherein a minor air hole from said first hole set is at least partially aligned in a radial direction with a major air hole from said second hole set, an intermediate air hole from said first hole set is at least partially aligned in a radial direction with an intermediate air hole from said second hole set, and a major air hole from said first hole set is at least partially aligned in a radial direction with a minor air hole from said second hole set.
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6. A combustor for a turbine engine comprising:
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an outer liner having a row of circumferentially distributed outer combustion air holes including at least a major outer air hole having a first outer air hole size, an intermediate outer air hole having a second outer air hole size, and a minor outer air hole having a third outer air hole size, wherein said first, said second, and said third outer air hole sizes are all different from each other; an inner liner circumscribed by said outer liner and having a row of circumferentially distributed inner combustion air holes including at least a major inner air hole having a first inner air hole size, an intermediate inner air hole having a second inner air hole size, and a minor inner air hole having a third inner air hole size, wherein said first, said second, and said third inner air hole sizes are all different from each other; wherein said second outer and said second inner air hole sizes are smaller than said first outer and said first inner air hole sizes, and wherein said second outer and said second inner air hole sizes are greater than said third outer and said third inner air hole sizes; wherein said intermediate air holes are positioned circumferentially between said major air holes and said minor air holes; wherein said row of circumferentially distributed outer combustion air holes is comprised of a plurality of first hole sets, each first hole set including at least one minor air hole that is circumferentially spaced from one intermediate air hole that in turn is circumferentially spaced from one major air hole, and wherein each minor hole of one first hole set is circumferentially spaced from a major air hole of an immediately adjacent first hole set, and wherein said row of circumferentially distributed inner combustion air holes is comprised of a plurality of second hole sets, each second hole set including at least one minor air hole that is circumferentially spaced from one intermediate air hole that is circumferentially spaced from one major air hole, and wherein each minor hole of one second hole set is circumferentially spaced from a major air hole of an immediately adjacent second hole set; and wherein said major air hole from said first hole set is at least partially aligned in a radial direction with an intermediate air hole from said second hole set, an intermediate air hole from said first hole set is at least partially aligned in a radial direction with a major air hole from said second hole set, and a minor air hole from said first hole set is offset from a minor air hole from said second hole set with said intermediate and major air holes of said first and said second hole sets being positioned circumferentially between said minor air holes of said first and said second hole sets.
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9. A combustor for a turbine engine comprising:
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an outer liner having a row of circumferentially distributed outer combustion air holes including at least a major outer air hole having a first outer air hole size, an intermediate outer air hole having a second outer air hole size, and a minor outer air hole having a third outer air hole size, wherein said first, said second, and said third outer air hole sizes are all different from each other; an inner liner circumscribed by said outer liner and having a row of circumferentially distributed inner combustion air holes including at least a major inner air hole having a first inner air hole size, an intermediate inner air hole having a second inner air hole size, and a minor inner air hole having a third inner air hole size, wherein said first, said second, and said third inner air hole sizes are all different from each other; wherein said second outer and said second inner air hole sizes are smaller than said first outer and said first inner air hole sizes, and wherein said second outer and said second inner air hole sizes are greater than said third outer and said third inner air hole sizes; a fourth outer air hole having a fourth outer air hole size and a fourth inner air hole having a fourth inner air hole size, said fourth outer and said fourth inner air holes corresponding to one of a major air hole, a minor air hole, or an intermediate air hole; and wherein said row of circumferentially distributed outer combustion air holes is comprised of a plurality of first hole sets, each first hole set including at least one minor air hole that is circumferentially spaced from one intermediate air hole that in turn is circumferentially spaced from one major air hole that in turn is circumferentially spaced from another intermediate air hole, and wherein each minor hole of one first hole set is circumferentially spaced from one intermediate air hole of an immediately adjacent first hole set, and wherein said row of circumferentially distributed inner combustion air holes is comprised of a plurality of second hole sets, each second hole set including at least one minor air hole that is circumferentially spaced from one intermediate air hole that in turn is circumferentially spaced from another intermediate air hole that in turn is circumferentially spaced from one major air hole, and wherein each minor hole of one second hole set is circumferentially spaced from a major air hole of an immediately adjacent second hole set. - View Dependent Claims (10)
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Specification