초록 ▼

A honeycomb structure seal is provided for the casing of a turbine, particularly a gas turbine, having a base plate facing the casing wall as well as a brush-against section facing the tips of the turbine rotor blades. The seal includes a multi-layered construction such that the base plate is adjoin

A honeycomb structure seal is provided for the casing of a turbine, particularly a gas turbine, having a base plate facing the casing wall as well as a brush-against section facing the tips of the turbine rotor blades. The seal includes a multi-layered construction such that the base plate is adjoined by an air-evacuated honeycomb structure section which is therefore insulating in partial areas by a vacuum and which is covered by an intermediate plate, on whose side facing away from the honeycomb structure section the brush-against section is arranged. The intermediate plate is soldered to the honeycomb structure section under vacuum conditions. The brush-against section can also be constructed as a honeycomb seal, in which case the honeycomb cells of the honeycomb structure section have a significantly larger partial surface than the honeycomb cells of the brush-against section.

대표청구항 ▼

[ What is claimed is:] [1.]1. Honeycomb structure seal operable in use between a rotating element and a stator element of a turbine, particularly for a gas turbine, comprising:a brush-against section which in use faces tips of turbine blades, anda base plate facing another turbine element,wherein a

[ What is claimed is:] [1.]1. Honeycomb structure seal operable in use between a rotating element and a stator element of a turbine, particularly for a gas turbine, comprising:a brush-against section which in use faces tips of turbine blades, anda base plate facing another turbine element,wherein a multi-layered construction is provided such that the base plate is adjoined by an air-evacuated honeycomb structure section which is therefore insulating in partial areas by a vacuum and which is covered by an intermediate plate, the brush-against section being arranged facing away from the intermediate plate.