Patent ID: 8397513
Filing Date: 2013-03-19
Classification: F01D,F02C,Y10T

Abstract:
1. A device for tapping air for the cooling of components in a turbomachine, comprising an annular duct formed in a casing and having a radially internal wall which is swept by a stream of air flowing from upstream to downstream and which comprises at least one radial axis air inlet orifice, the device comprising a flap valve for controlling the flow rate of air entering through the orifice, wherein said flap is formed of an elastically deformable metal plate of which a downstream end is fixed on an edge of the orifice, and of which an upstream end can be displaced by a manoeuvring member mobile in translation parallel to the axis of the orifice between a position wherein the plate is applied on the edge of the orifice and seals this orifice and a position wherein the upstream end of the plate is separated from the edge of the orifice and opens this orifice, wherein the upstream end of the elastically deformable plate is connected to the manoeuvring member by cooperation of forms.