Axial Turbomachine Compressor Inner Shell

摘要

The present application relates to an axial turbomachine gaseous flow-guiding element, such as a compressor inner shroud or vane. The element includes a plasma generator including: a layer of dielectric material with a guiding surface in contact with the gaseous flow, a first electrode placed in the guiding surface, and a second electrode electrically isolated from the first electrode by means of the dielectric layer. The plasma generator drives the gaseous flow along the guiding surface from the first electrode to the second electrode and includes a third electrode covered by the dielectric layer and electrically connected to the second electrode, so as to participate in the generation of the plasma in combination with the first electrode and the second electrode, the second electrode being closer to the guiding surface than the third electrode.

主权项

1. A guiding element of a gaseous flow of a turbomachine, comprising:
a plasma generator; a guiding surface of the gaseous flow of the turbomachine; a layer of dielectric material in contact with the gaseous flow of the turbomachine and partially forming the guiding surface; a first electrode placed in the guiding surface and partially forming the guiding surface; a second electrode electrically isolated from the first electrode by the dielectric layer, the plasma generator being configured so as to drive the gaseous flow along the guiding surface from the first electrode towards the second electrode by a driving plasma; and a third electrode electrically connected to the second electrode so as to participate in the generation of the driving plasma in combination with the first electrode and the second electrode; wherein the third electrode is covered by the dielectric layer and the second electrode is closer to the guiding surface than the third electrode.