Cooling arrangement for blades of gas turbines etc. has connectors between collection and distribution chambers around blades, for fluid-sealed connection to coolant channels

摘要

The blades (1) contain a hollow chamber and coolant channels (10a,b), which form a continuous flow path for a coolant (K) esp. steam. A distributor chamber (30) and a collection chamber (40) enclose the blades in a ring shape. Connectors (50) are positioned between blades and distribution chamber, for a mainly fluid-tight connection between the chamber and the first channel of a group of coolant channels. The connectors are formed to compensate for thermal variations in the radial distance between distributor chamber and blades.