Patent ID: 7827799

Claim:
A gas turbine engine comprising: a fan section; a compressor section, a compressor diffuser downstream of said compressor section; a combustion section downstream of said compressor diffuser; a turbine section downstream of said combustor section; said compressor diffuser having a housing including an inlet with a first cross- sectional area and an outlet with a second cross-sectional area, said second cross-sectional area being greater than said first cross-sectional area; and a dirt separator positioned downstream of said compressor section, and upstream of said combustion section, and adjacent said outlet, said dirt separator being operable to separate heavier dirt laden air to radially outer locations, and relatively cleaner air to radially inner locations, and such that the majority of the heavier dirt laden air, which is radially outward of said dirt separator is directed radially outwardly of a radially outermost surface of a combustion section to be mounted downstream of the diffuser, and such that air from a radially innermost location is directed toward the combustion section, and such that the air which does move into an interior of the combustion section to be mixed with fuel and burned is air from a location radially inward of said dirt separator.