DUAL WALL STRUCTURE FOR USE IN A COMBUSTOR OF A GAS TURBINE ENGINE
First Claim
1. A dual wall structure for a combustor of a gas turbine engine comprising:
- a combustor dome;
an outer liner coupled to said combustor dome; and
an inner liner coupled to said combustor dome and spaced a distance from said outer liner, wherein each of said outer liner and said inner liner comprise;
an outer wall including a plurality of impingement holes formed therein for allowing a coolant to flow therethrough; and
an inner wall coupled to said outer wall and the combustor dome, said inner wall comprising a plurality of heat shield panels, each having a hot side and a cold side, said cold side having a plurality of side rails, an aft rail and a forward angled flange that when coupled to the outer wall define a cavity there between, a plurality of cavities formed by the plurality of heat shield panels;
wherein each of said plurality of heat shield panels extends a longitudinal length of said combustor;
wherein each of said plurality of heat shield panels includes a plurality of effusion holes for allowing said coolant to flow from said cold side to said hot side and form a cooling film on a surface of said hot side.
1 Assignment
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Accused Products
Abstract
A dual wall structure for a combustor of a gas turbine engine including an inner liner and an outer liner coupled to a combustor dome and defining a combustion chamber there between. Each of the inner liner and the outer liner include an outer wall and an inner wall. Each of the outer walls includes a plurality of impingement holes formed therein for allowing a coolant to flow therethrough. Each of the inner walls is coupled to the outer wall and a combustor dome and includes a plurality of heat shield panels. Each of the plurality of heat shield panels extends a longitudinal length of the combustor chamber and includes a plurality of side rails, an aft rail and a forward flange that when coupled to the outer wall defines a single cavity there between. A plurality of cavities being formed by the plurality of heat shield panels.
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Citations
20 Claims
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1. A dual wall structure for a combustor of a gas turbine engine comprising:
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a combustor dome; an outer liner coupled to said combustor dome; and an inner liner coupled to said combustor dome and spaced a distance from said outer liner, wherein each of said outer liner and said inner liner comprise; an outer wall including a plurality of impingement holes formed therein for allowing a coolant to flow therethrough; and an inner wall coupled to said outer wall and the combustor dome, said inner wall comprising a plurality of heat shield panels, each having a hot side and a cold side, said cold side having a plurality of side rails, an aft rail and a forward angled flange that when coupled to the outer wall define a cavity there between, a plurality of cavities formed by the plurality of heat shield panels; wherein each of said plurality of heat shield panels extends a longitudinal length of said combustor; wherein each of said plurality of heat shield panels includes a plurality of effusion holes for allowing said coolant to flow from said cold side to said hot side and form a cooling film on a surface of said hot side. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A dual wall structure for a combustor of a gas turbine engine comprising:
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a combustor dome; an outer liner coupled to said combustor dome; and an inner liner coupled to said combustor dome and spaced a distance from said outer liner, wherein each of said outer liner and said inner liner comprise; an outer wall including a plurality of impingement holes formed therein for allowing a coolant to flow therethrough; and an inner wall coupled to said outer wall and the combustor dome, said inner wall comprising a plurality of heat shield panels, each having a hot side and a cold side, each of the plurality of heat shield panels further comprises a plurality of side rails and an aft rail extending substantially perpendicular from a surface of the cold side and a forward angled flange, the plurality of side rails, the aft rail and the forward angled flange defining a cavity between the inner wall and the outer wall when coupled together, a plurality of cavities formed by the plurality of heat shield panels; each of said plurality of heat shield panels further comprising a plurality of integral threaded studs extending substantially perpendicular from the surface of the cold side and through a plurality of holes defined in the outer wall, the plurality of integral threaded studs providing a means for coupling each of the plurality of heat shield panels to the outer wall; wherein each of said plurality of heat shield panels extends a longitudinal length of said combustor; and wherein each of said plurality of heat shield panels includes a plurality of effusion holes for allowing said coolant to flow from said cold side to said hot side and form a cooling film on a surface of said hot side. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A combustor for a gas turbine engine comprising:
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a combustor dome; an outer liner and an inner liner coupled to the combustor dome, wherein said inner liner and said outer liner define a combustion chamber there between; an outer wall comprising a portion of each of said outer liner and said inner liner; a plurality of heat shield panels comprising a portion of each said outer liner and said inner liner, each of the plurality of heat shield panels extending substantially a longitudinal length of said combustion chamber; each of said plurality of heat shield panels having a hot side and a cold side, said cold side having a plurality of side rails, an aft rail and a forward angled flange that when coupled to the outer wall of each of the outer liner and the inner liner define a cavity between each of the plurality of heat shield panels and the outer wall, a plurality of cavities formed by the plurality of heat shield panels; wherein each of said plurality of heat shield panels includes a plurality of effusion holes for allowing a coolant to flow from said cold side to said hot side and form a cooling film on a surface of said hot side. - View Dependent Claims (17, 18, 19, 20)
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Specification