Patent application number | Description | Published |
20080298972 | ROTOR DISK FOR TURBOMACHINE FAN - A rotor disk ( | 12-04-2008 |
20090000273 | TWIN FAN TURBOMACHINE - A twin fan turbomachine with two contrarotating fans, one upstream and one downstream, driven by two contrarotating coaxial shafts each of which connects one fan impeller to at least one low-pressure turbine impeller located downstream, the downstream fan impeller being connected by its downstream part to its drive shaft. | 01-01-2009 |
20090074586 | DAMPING DEVICE FOR COMPOSITE BLADE - The present invention relates to a blade made of composite, comprising a vane formed of woven filaments impregnated with a thermosetting resin with a protective element in the region of the leading edge of the vane comprising a part in the form of a rigid strip, said strip being secured to the vane. The blade is characterized in that at least one layer of a viscoelastic material is at least partially interposed between said rigid strip and the vane so as to form, with the protective element, a means of damping the vibrations of the vane. | 03-19-2009 |
20100232974 | BLADE MADE OF COMPOSITE MATERIAL COMPRISING A DAMPING DEVICE - The present invention relates to a blade made of composite material ( | 09-16-2010 |
20120195766 | CMC TURBINE ENGINE BLADES AND A ROTOR WHEEL FOR A TURBINE ENGINE AND A TURBINE ENGINE INTEGRATING THEM - A rotor wheel of a turbine engine includes a plurality of CMC blades each having a first portion constituting a blade airfoil and root and made as a single piece with a second portion forming an outer platform. The blades are held under twisting prestress by mutual engagement via contact zones between the outer platforms of adjacent blades, and the contact zones that are situated on opposite sides of the outer platform of a blade are defined by at least one insert that is integrated in the outer platform and that is, for example, made of a carbon-based material. | 08-02-2012 |
20130028746 | TURBINE ENGINE TURBINE BLADE MADE OF A CERAMIC-MATRIX COMPOSITE WITH RECESSES MADE BY MACHINING - A turbine engine turbine blade of ceramic matrix composite. The root of the blade includes a single densified fiber preform including at least one recess made by machining, each point of the root of the blade being situated at a distance from a free surface of the root that is no greater than twice the maximum penetration distance into the preform of densification gas for densifying the preform, and the distal portion of the root of the blade includes a distal wall that is continuous and in a single piece. | 01-31-2013 |
20130343894 | Turbine wheel in a turbine engine - The invention relates to a turbine wheel in a turbine engine, the wheel comprising a disk having a plurality of blades with roots that are axially engaged and radially retained in longitudinal slots in the outer periphery of the disk, the blades having platforms that extend circumferentially end to end and that are radially facing longitudinal teeth of the disk that define the slots. Protection members for protecting the flanks of the slots and made out of sheet metal are mounted on the teeth of the disk and held thereon by co-operating shapes, the protection members including means for bearing radially against the platforms of the blades in order to oppose circumferential tilting of the blades, and they also include means for at least partially closing the radial gaps between the teeth and the platforms of the blades. | 12-26-2013 |
20150247412 | TURBINE ENGINE BLADE MADE OF COMPOSITE MATERIAL WITH A BULB-SHAPED ROOT - A turbine engine blade made of composite material including fiber reinforcement obtained by three dimensionally weaving yarns and densified with a matrix, the blade including an airfoil and a blade root forming a single part. The blade root includes two opposite lateral flanks that are substantially plane and that are clamped between two independent pads made of composite material, which pads are fastened against the lateral flanks of the blade root to form a blade root that is bulb-shaped. | 09-03-2015 |