Integrated variable geometry flow restrictor and heat exchanger
AssigneeGeneral Electric Company
InventorMichael Anthony Ruthemeyer
Life of this patent
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Abstract
One or more heat exchangers mounted in a duct have heat transfer cooling passages therein and a variable geometry flow restrictor is integral with each of the heat exchangers. An annular slide valve axially translatable within the duct is operable to open and close or vary a variable area between the heat exchangers and one of inner and outer casings bounding the duct. The heat exchangers may be being circumferentially distributed around an annular duct and include radial or circumferentially curved heat transfer tubes or vanes.
Claims8
An integrated variable geometry flow restrictor and heat exchanger system comprising:
- one or more heat exchangers mounted in a duct,
- heat transfer cooling passages in each of the heat exchangers,
- a variable geometry flow restrictor integral or associated with each of the one or more heat exchangers,
- the flow restrictor operable to open and close or vary a variable area bounded at least in part by the heat exchanger and duct,
- the variable area located between the heat exchangers and one of inner and outer casings bounding the duct, and
- an annular slide valve axially translatable within the duct and with respect to the heat exchanger and operable to open and close or vary the variable area.
A gas turbine engine comprising:
- a longitudinal centerline about which the engine is circumscribed,
- an annular inlet followed in axial downstream flow relationship by a fan assembly, a high pressure compressor, a combustor, a high pressure turbine, and a low pressure turbine,
- an outer casing radially spaced apart from an inner casing defining a bypass duct therebetween,
- the bypass duct located around and radially outwardly of the high pressure compressor, the combustor, the high pressure turbine, and the low pressure turbine,
- an integrated variable geometry flow restrictor and heat exchanger system including one or more heat exchangers mounted in the duct and a variable geometry flow restrictor integral or associated with the one or more heat exchangers, and
- heat transfer cooling passages in each of the heat exchangers, and
- a variable area between the heat exchanger and one of inner and outer casings bounding the bypass duct and an annular slide valve axially translatable within the bypass duct and with respect to the heat exchanger and operable to open and close or vary the variable area.
Dependencies are inferred from the claim text.