Combustor
First Claim
1. A gas turbine engine combustor comprising:
- an inboard wall;
an outboard wall; and
a forward bulkhead extending the inboard and outboard walls and cooperating therewith to define a combustor interior volume,wherein, at least a first wall of said inboard and outboard walls comprises;
an exterior shell; and
an interior heat shield comprising a plurality of panels having;
an interior surface;
an exterior surface;
a perimeter having leading and trailing edges and first and second lateral edges; and
a plurality of pins protruding from the exterior surface toward the shell wherein the shell has a plurality of holes for directing air to a space between the shell and heat shield and adapted for preferentially directing said air toward leading edge portions of first stage vanes of a turbine section, the plurality of holes comprising a plurality of first groups and a plurality of second groups, the holes of the first groups being smaller and more closely spaced than the holes of the second groups.
3 Assignments
0 Petitions
Accused Products
Abstract
A gas turbine engine combustor has forward bulkhead extending between inboard and outboard walls and cooperating therewith to define a combustor interior volume or combustion chamber. At least one of the walls has an exterior shell and an interior shell including a number of panels. Each panel has interior and exterior surfaces and a perimeter having leading and trailing edges and first and second lateral edges. A number of cooling passageways have inlets on the panel exterior surface and outlets on the panel interior surface. The shell has a plurality of holes for directing air to a space between the shell and heat shield and adapted for preferentially directing said air toward leading edge portions of first stage vanes of a turbine section.
41 Citations
19 Claims
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1. A gas turbine engine combustor comprising:
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an inboard wall; an outboard wall; and a forward bulkhead extending the inboard and outboard walls and cooperating therewith to define a combustor interior volume, wherein, at least a first wall of said inboard and outboard walls comprises; an exterior shell; and an interior heat shield comprising a plurality of panels having; an interior surface; an exterior surface; a perimeter having leading and trailing edges and first and second lateral edges; and a plurality of pins protruding from the exterior surface toward the shell wherein the shell has a plurality of holes for directing air to a space between the shell and heat shield and adapted for preferentially directing said air toward leading edge portions of first stage vanes of a turbine section, the plurality of holes comprising a plurality of first groups and a plurality of second groups, the holes of the first groups being smaller and more closely spaced than the holes of the second groups. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A gas turbine engine combustor comprising:
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an inboard wall; an outboard wall; and a forward bulkhead extending the inboard and outboard walls and cooperating therewith to define a combustor interior volume, wherein, at least a first wall of said inboard and outboard walls comprises; an exterior shell; an interior heat shield comprising a plurality of panels having; an interior surface; an exterior surface; a perimeter having leading and trailing edges and first and second lateral edges; and a plurality of pins protruding from the exterior surface toward the shell; and means for directing air to a space between the shell and heat shield preferentially toward leading edge portions of first stage vanes of a turbine section, the means comprising a plurality of holes for directing air to a space between the shell and heat shield, the plurality of holes comprising a plurality of first groups and a plurality of second groups, the holes of the first groups being smaller and more closely spaced than the holes of the second groups. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification