초록 ▼

A turbine shroud includes a panel having a forward hook and an aft hook spaced therefrom. A primary cooling circuit extends through the panel adjacent the forward hook, and has a primary inlet for receiving primary air at a first pressure, and a primary outlet for discharging the primary air. A seco

A turbine shroud includes a panel having a forward hook and an aft hook spaced therefrom. A primary cooling circuit extends through the panel adjacent the forward hook, and has a primary inlet for receiving primary air at a first pressure, and a primary outlet for discharging the primary air. A secondary cooling circuit extends through the panel adjacent the aft hook independently of the primary circuit. The secondary circuit includes a secondary inlet for receiving secondary air at a second pressure different than the first pressure, and a secondary outlet for discharging the secondary air. The dual cooled shroud accommodates differential gas pressure through the turbine.

대표청구항 ▼

[ We claim:] [1.] A shroud for providing a flowpath boundary for hot combustion gases in a turbine of a gas turbine engine comprising:a panel having a forward hook and an aft hook spaced therefrom;means for channeling primary air at a first pressure through a portion of said panel; andmeans for inde

[ We claim:] [1.] A shroud for providing a flowpath boundary for hot combustion gases in a turbine of a gas turbine engine comprising:a panel having a forward hook and an aft hook spaced therefrom;means for channeling primary air at a first pressure through a portion of said panel; andmeans for independently channeling secondary air at a different pressure through another portion of said panel. [4.] A method of cooling a shroud providing a flowpath boundary for hot combustion gases in a turbine of a gas turbine engine comprising:channeling primary air at a first pressure through a portion of said shroud; andindependently channeling secondary air at a different second pressure through another portion of said shroud.