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US 2017/0254268 A1Published application
Heat exchanger for gas turbine engine
AssigneeUnited Technologies Corporation
InventorsWesley K. Lord, Nathan Snape, Gabriel L. Suciu
Life of this patent
Estimating the term…
Abstract
A gas turbine engine component includes a heat exchange structure having an upstream end and a downstream end. A diffusing duct is associated with the upstream end. A throttle member controls air flow through the heat exchange structure, wherein the throttle member: (a) has a non-circular cross section; and (b) is mounted to the downstream end of the heat exchange structure or is mounted between the upstream end and the diffusing duct.
Claims20
A gas turbine engine component comprising:
- a heat exchange structure having an upstream end and a downstream end;
- a diffusing duct associated with the upstream end;
- and
- a throttle member to control air flow through the heat exchange structure, wherein the throttle member:
- (a) has a non-circular cross section;
- and (b) is mounted to the downstream end of the heat exchange structure or is mounted between the upstream end and the diffusing duct.
3 more elements
A gas turbine engine component comprising:
- a heat exchange structure having an upstream end and a downstream end;
- a diffusing duct associated with the upstream end;
- a throttle member including a frame mounted directly to the downstream end of the heat exchange structure, the frame defining a non-circular cross-sectional flow area, and wherein the throttle member includes a moveable member mounted for movement relative to the frame, wherein the moveable member is moveable between a fully open position where a minimum amount of the non-circular cross-sectional flow area is blocked and a fully closed position where a maximum amount of the non-circular cross-sectional flow area is blocked;
- and
- an actuator configured to control movement of the moveable member between the fully open and fully closed positions.
2 more elements
A gas turbine engine comprising:
- an outer nacelle surrounding a fan that rotates about an engine axis, the outer nacelle having an upstream nacelle end and a downstream nacelle end;
- a core nacelle positioned radially inward of the outer nacelle and surrounding a core engine that includes at least one spool that rotates about the engine axis and interconnects the fan with a compressor section and a turbine section, and wherein a bypass flow path is defined between the outer nacelle and the core nacelle;
- an upper bifurcation structure configured to extend between the outer nacelle and the core nacelle;
- and
- a heat exchanger at least partially incorporated into the upper bifurcation structure, wherein the heat exchanger comprises:
- a pre-cooler having an upstream end and a downstream end,
- a diffusing duct associated with the upstream end, and
- a throttle member mounted to the downstream end of the pre-cooler or mounted between the upstream end of the pre-cooler and the diffusing duct, and wherein the throttle member comprises a frame defining a non-circular cross-sectional flow area and a moveable member mounted for movement relative to the frame to throttle flow.
5 more elements
Dependencies are inferred from the claim text.