Patent ID: 9200525
Filing Date: 2015-12-01
Classification: B64C,F01D

Abstract:
1. A turbomachine blade incidence control system, comprising: a fluidic cylinder adapted to modify the incidence of a turbomachine blade, comprising a first upstream chamber and a second downstream chamber with first and second fluid inlets respectively, a pressurised fluid network adapted to selectively supply pressurised fluid to the first and/or the second chamber of the fluidic cylinder through the first and/or the second inlet, the fluid network comprising at least one fluid routing device adapted to modify the fluid supply to at least the first chamber, the routing device having a first so-called normal position in which the fluid supply to the first chamber is said to be normal, and a second so-called protection position in which the fluid supply to the first chamber is adapted to inhibit operation of the fluidic cylinder in a predefined so-called inhibit position, wherein the fluidic cylinder comprises at least a third fluid inlet positioned to be in fluid communication with the first chamber when the fluidic cylinder is in the inhibit position, the routing device being adapted to set up a fluid communication between the third inlet and the second chamber through the fluid network when it is in the protection position, and to inhibit the fluid supply to the third inlet when it is in the normal position.