Patent ID: 8162597
Filing Date: 2012-04-24
Classification: F01D,F04D,F16B

Abstract:
1. A stage of variable-pitch vanes for a turbomachine, these vanes comprising radially external pivots engaged in radial ducts of an external casing and radially internal pivots engaged in corresponding housings of a sectorized internal ring, said sectorized internal ring having ring sectors each comprising axial orifices for mounting at least two pins for the radial retention of the ring sector on the internal pivot of a vane, the pins being parallel and extending on opposite sides of the internal pivot of the vane while passing into an external annular groove in the internal pivot, wherein each pin comprises a cylindrical body terminated at one end by a head, said cylindrical body of each pin comprising a transverse notch and said head of each pin comprising means cooperating by shape coupling with complementary means of the other pin in order to rotationally immobilize these pins in the orifices in the ring sectors, and said head of each pin comprising means for indicating the angular position of the transverse notch in the cylindrical body of the pin.