Nozzle particle deflector for a gas turbine engine

摘要

A particle deflector for a gas turbine engine deters accumulation of particles in cooling passages of nozzle vanes of the engine. The particle deflector is arranged to be disposed around a turbine housing over cooling passages that supply cooling air to nozzle vanes within the housing. The particle deflector includes circumferentially distributed mounting holes for mounting the particle deflector to the turbine housing. The particle deflector also includes circumferentially distributed spacers to space the particle deflector from the housing.

主权项

1. A particle deflector for a gas turbine engine including a turbine housing having a generally cylindrical outer surface and having cooling passages arranged to supply cooling air to nozzle vanes within the turbine housing, the particle deflector comprising:
a predominantly solid body having mounting holes circumferentially distributed near a first edge of the body and extending through the body for mounting the particle deflector to the turbine housing; a rib extending radially outward from the body; and spacers circumferentially distributed near the first edge of the body, the particle deflector configured to be disposed about the turbine housing over the cooling passages, to be spaced from the turbine housing at the first edge of the body by the spacers, and to be spaced from the turbine housing at a second edge of the body.