Combustor with enhanced cooling access

Details Combustor with enhanced cooling access Combustor with enhanced cooling access

2006-09-12

2009-12-15

Cuff, Michael (Department: 3741)

Power plants

Combustion products used as motive fluid

Combustion products generator

C060S752000, C060S796000

Reexamination Certificate

active

07631503

ABSTRACT:
A combustor for a gas turbine engine having an inner combustor wall and an outer combustor wall with a number of heat shields mounted internally thereto with fasteners. Each combustor wall has an end wall defining a combustor dome with a number of: fuel nozzle openings; impingement air openings; and heat shield fastener openings. Each of the end walls has an overlapping portion with mutually engaging sealing surfaces with the openings within the overlapping portions being aligned in overlapping pairs, where an exterior overlapping portion has at least one of the aligned openings of one overlapping pair being of larger dimension than the aligned opening in an interior overlapping portion.

REFERENCES:
patent: 5253471 (1993-10-01), Richardson
patent: 5490389 (1996-02-01), Harrison et al.
patent: 5623827 (1997-04-01), Monty
patent: 5956955 (1999-09-01), Schmid
patent: 6497105 (2002-12-01), Stastny
patent: 6546733 (2003-04-01), North et al.
patent: 2004/0250548 (2004-12-01), Howell et al.
patent: 2008/0060360 (2008-03-01), Stastny et al.

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