초록 ▼

A cooling system for turbomachinery includes a compressor bleed air passageway for supplying bleed cooling air to a plurality of circumferentially spaced, generally axially extending passages in communication with a cavity within the inner barrel in which the flanges of the turbine and compressor ro

A cooling system for turbomachinery includes a compressor bleed air passageway for supplying bleed cooling air to a plurality of circumferentially spaced, generally axially extending passages in communication with a cavity within the inner barrel in which the flanges of the turbine and compressor rotors are secured to one another. The exit ends of the passages have swirl devices for turning the flow from the general axial direction to a tangential direction corresponding to the direction of rotation of the combined rotors. A leakage seal is provided between the rotor and the stationary component to provide a pressure drop across a plenum and cavity to increase the velocity of air flowing into the cavity. Consequently, cooling air is supplied the cavity at a tangential velocity approaching the rotor velocity with reduced windage and lower temperature, thereby improving the performance of the turbomachinery.

대표청구항 ▼

[ What is claimed is:] [1.]1. In turbomachinery having a turbine, a compressor, a component rotatable about an axis and in a cavity, and a fixed component about said rotatable component and said cavity, a cooling system, comprising:a bleed air passageway for diverting a portion of compressor dischar

[ What is claimed is:] [1.]1. In turbomachinery having a turbine, a compressor, a component rotatable about an axis and in a cavity, and a fixed component about said rotatable component and said cavity, a cooling system, comprising:a bleed air passageway for diverting a portion of compressor discharge air for cooling the rotatable component;a plurality of discrete, generally axially extending passages in communication with said bleed passageway for flowing the bleed air into said cavity; andvanes in said passages for turning the bleed air flowing into said cavity in a generally circumferential direction and in the general direction of rotation of said rotatable component to cool said rotatable component.