US 8,789,376 B2 · Flade duct turbine cooling and power and thermal management

Abstract

An aircraft compound cooling system includes a power thermal management system for cooling one or more aircraft components, an air cycle system, a vapor cycle system, and a turbine cooling circuit for cooling bleed air and cooling turbine components in a high pressure turbine in the engine. An air to air FLADE duct heat exchanger is disposed in a FLADE duct of the engine and a valving apparatus is operable for selectively switching the FLADE duct heat exchanger between the turbine cooling circuit and the air cycle system. A vapor cycle system includes a vapor cycle system condenser that may be in heat transfer cooling relationship with the air cycle system. An air cycle system heat exchanger and an engine burn fuel to air heat exchanger in the vapor cycle system condenser may be used for cooling a working fluid in a refrigeration loop of the vapor cycle system.

Claims22

Dependent claims

An aircraft compound cooling system comprising:

a power thermal management system including an air cycle system,
a turbine cooling circuit for cooling pressurized bleed air and using the cooled pressurized bleed air for cooling turbine components in a high pressure turbine in an aircraft gas turbine engine,
an air to air FLADE duct heat exchanger disposed in a FLADE duct of the engine,
valving apparatus operable for selectively switching the air to air FLADE duct heat exchanger between the turbine cooling circuit and the air cycle system, and
a vapor cycle system including a vapor cycle system condenser and the air cycle system in heat transfer cooling relationship with the vapor cycle system condenser.

2 more elements

An aircraft compound cooling system comprising:

aircraft FLADE gas turbine engine including a fan section having a fan,
a core engine having an annular core engine inlet disposed downstream and axially aft of the fan,
a fan bypass duct downstream and axially aft of the fan circumscribing the core engine,
a FLADE duct circumscribing the fan and the fan bypass duct,
a FLADE fan having at least one row of FLADE fan blades extending radially across the FLADE duct,
the FLADE fan blades disposed radially outwardly of and connected to and circumscribing the fan,
a power thermal management system including an air cycle system,
a turbine cooling circuit for cooling pressurized bleed air and using the cooled pressurized bleed air for cooling turbine components in a high pressure turbine in the aircraft gas turbine engine,
an air to air FLADE duct heat exchanger disposed in the FLADE duct,
valving apparatus operable for selectively switching the air to air FLADE duct heat exchanger between the turbine cooling circuit and the air cycle system, and
a vapor cycle system including a vapor cycle system condenser and the air cycle system in heat transfer cooling relationship with the vapor cycle system condenser.

8 more elements

Dependencies are inferred from the claim text.

Flade duct turbine cooling and power and thermal management

Life of this patent

Flade duct turbine cooling and power and thermal management

Life of this patent

Abstract

Claims22