GAS TURBINE ENGINE WITH DISK HAVING PERIPHERY WITH PROTRUSIONS

摘要

A gas turbine engine includes a turbine section that has a disk rotatable about an axis. The disk has circumferentially-spaced blade mounting features and radially outer rim surfaces extending circumferentially between the blade mounting features. Turbine blades are mounted circumcumferentially around the disk in the blade mounting features. Seals are arranged radially outwards of the disk adjacent the radially outer rim surfaces such that there are respective passages between the seals and the radially outer rim surfaces. The radially outer rim surfaces include radially-extending protrusions that extend into the respective passages.

主权项

1. A gas turbine engine comprising:
a turbine section including:
a disk rotatable about an axis and including a plurality of circumferentially-spaced blade mounting features and radially outer rim surfaces extending circumferentially between the blade mounting features,a plurality of turbine blades mounted circumferentially around the disk in the blade mounting features,a plurality of seals arranged radially outwards of the disk adjacent the radially outer rim surfaces such that there are respective passages between the plurality of seals and the radially outer rim surfaces, andthe radially outer rim surfaces including a plurality of radially-extending protrusions extending into the respective passages.