Cross-over purge flow system for a turbomachine wheel member

摘要

A wheel member includes a body having a first surface that extends to a second surface through an intermediate portion. The body includes an outer diametric surface and a central bore. A first plurality of purge circuits are formed in the body. The first plurality of purge circuits extend from a first end to a second end through the body. The first plurality of purge circuits are arranged to direct a first purge flow in a first direction. A second plurality of purge circuits are formed in the body and fluidly isolated from the first plurality of purge circuits. The second plurality of purge circuits extend from a first end portion to a second end portion through the body and are arranged to direct a second purge flow in a second direction, that is distinct from the first direction, to establish a cross-over purge flow system.

主权项

1. A wheel member comprising:
a body including a first surface that extends to a second surface through an intermediate portion, the body including an outer diametric surface and a central bore; a first plurality of purge circuits formed in the body, the first plurality of purge circuits extending from a first end to a second end through the body, the first plurality of purge circuits including an inlet channel extending from the first end toward the outer diametric surface, the first plurality of purge circuits being arranged to direct a first purge flow in a first direction radially inwardly along the body; and a second plurality of purge circuits formed in the body and fluidly isolated from the first plurality of purge circuits, the second plurality of purge circuits extending from a first end portion to a second end portion through the body and being arranged to direct a second purge flow in a second direction radially outwardly along the body, to establish a cross-over purge flow.