Patent application number | Description | Published |
20080202082 | DE-OILER SYSTEM FOR AN AEROENGINE - The invention relates to a de-oiler system for an aeroengine including a casing defining a volume containing a rotary shaft and a mixture of air and oil for processing. | 08-28-2008 |
20090199534 | OIL RECOVERY DEVICE - It comprises two bearing supports ( | 08-13-2009 |
20100307167 | CENTRIFUGAL DE-OILER OF VARIABLE FLOW SECTION - A centrifugal de-oiler of variable flow section, the de-oiler including a hollow shaft that is movable in rotation. The shaft includes at least one air-passing orifice and a piston housed in the shaft so as to subdivide the inside of the shaft into two compartments that are sealed relative to each other. One compartment includes the air-passing orifice(s) being subjected to ambient pressure, and the other compartment is subjected to varying pressure in the air/oil enclosure. The piston is configured to move in translation inside the shaft between two extreme positions under effect of the pressure difference between the two compartments, the extreme position including a first position in which the air-passing orifice(s) is/are disengaged, and a second position in which the air-passing orifice(s) is/are partially obstructed by the piston. | 12-09-2010 |
20110198155 | METHOD AND SYSTEM FOR LUBRICATING A TURBINE ENGINE - A method and a system for lubricating a turbine engine including at least three separate housings each including at least one roller bearing. The method pressurizes the housings through seals, of which two main housings are pressurized at a pressure higher than that of a remaining secondary housing, lubricates a secondary roller bearing only by injecting an oil mist from at least one of the main housings, the oil mist being supplied by a pressure difference between the main housings and the secondary housing, recovers a remainder of the lubrication oil injected into the main housings to supply the same to an oil tank, and supplies the air/oil mixture from the secondary housing to an oil separator. | 08-18-2011 |
20110299974 | LUBRICATING AND COOLING EPICYCLIC STEPDOWN GEARING - A lubricating and cooling epicyclic stepdown gearing, for example in an aeroengine turbomachine, including a cylindrical casing mounted on a planet-carrier of the gearing and forming a centrifugal scoop surrounding stationary oil-delivery strips, the cylindrical casing including radial ducts feeding nozzles pointing towards zones where the planet gears mesh with outer ring(s) of the gearing. | 12-08-2011 |
20130015018 | SEALING DEVICE FOR JET ENGINE OIL CHAMBERAANM Gauthier; Gerard PhilippeAACI Champagne Sur SeineAACO FRAAGP Gauthier; Gerard Philippe Champagne Sur Seine FRAANM Morreale; Serge ReneAACI GuignesAACO FRAAGP Morreale; Serge Rene Guignes FR - A sealing device for a chamber including at least one rotary member and at least one static member of a jet engine and can contain a lubricating oil droplet suspension. The sealing device includes at least one brush seal that includes juxtaposed strands and is set to ensure sealing between at least one rotary member and at least one stationary member, a mechanism to recover part of the oil suspended within the inner space of the chamber, and a mechanism to deliver the recovered oil. The delivery mechanism is set up to generate a flow of oil along the strands of the brush seal, the oil flow being oriented in the direction of the rotary member. The brush seal thus provides better resistance to coking. | 01-17-2013 |
20130022446 | FLUIDIC DAMPENING FILM SUPPLY METHOD FOR A GUIDING BEARING OF A TURBINE ENGINE SHAFT - A fluidic dampening film supply method for a guiding bearing of a turbine engine shaft, said turbine engine being known to vibrate according to at least one given vibratory mode, said turbine engine being adapted to enter in resonance at a given resonance speed (w | 01-24-2013 |
20130177398 | SYSTEM FOR PRESSURING THE BEARING CHAMBERS OF TURBINE ENGINES MACHINES USING AIR TAKEN FROM THE INTAKE DUCT - A system for pressurizing at least one chamber for lubricating bearings of a turbine engine, including a circuit for supplying the chamber with pressurized air, and a circuit for recovering oil mist formed in the chamber and for returning the mist to an oil tank of the turbine engine. The supply circuit supplies the chamber with air taken upstream from the low-pressure compressor. | 07-11-2013 |
20140126992 | TURBINE ENGINE COMPRISING A FLOATING BEARING FOR GUIDING A SHAFT OF THE TURBINE ENGINE - A turbine engine including at least one shaft and at least one bearing for rotatably guiding the shaft about an axis of the turbine engine, the bearing including a first radially inner ring and a second radially outer ring enclosing rolling members, wherein the first ring is floatingly mounted on the shaft via a fluid damping film. | 05-08-2014 |
20140193245 | TURBO ENGINE COMPRISING A DAMPING FLUID FILM FOR DAMPING A GUIDE BEARING OF A SHAFT OF THE TURBO ENGINE AND METHOD OF ADJUSTING THE THICKNESS OF SUCH A DAMPING FLUID FILM - A turbine engine including a casing, a turbine engine shaft extending axially, a guide bearing for guiding the turbine engine shaft in the casing, the guide bearing including an inner circumferential ring rigidly connected to the turbine engine shaft, an outer circumferential ring fitted in a housing of the casing, and gripping rolling members, and a damping cavity configured to receive a damping fluid to form a damping fluid film for damping the guide bearing, the cavity being delimited radially between an outer surface of the outer ring and an inner surface of the housing. The outer surface of the outer ring and the inner surface of the housing are conical surfaces. | 07-10-2014 |
20150050130 | SEALING DEVICE BETWEEN TWO AXISYMMETRIC COAXIAL PARTS - A sealing device between two axisymmetric coaxial parts, includes an elastic segment, two holding elements located on each side of the annular segment, an annular spacer arranged between the two holding elements, wherein the annular spacer has a notch around its peripheral rim; the annular elastic segment has a hooking element at each of its free ends, adapted to cooperate with the notch of the annular spacer, and to hold the elastic segment in a pre-holding position by elastic return force. | 02-19-2015 |
20150097342 | LABYRINTH SEAL AND ROTATING MACHINE COMPRISING SUCH A SEAL - One of the components ( | 04-09-2015 |
20150300191 | ASSEMBLY FORMING A GASKET FOR A TURBOMACHINE, COMPRISING A BRUSH SEAL - An assembly forming a gasket for a turbomachine, includes a brush seal made of a plurality of sealing elastic bristles surrounding a core, a retaining ring including a recess to at least partly accommodate the brush seal, and a bearing cover, placed in contact with the brush seal to hold it in position against the retaining ring, the brush seal being located between the retaining ring and the bearing cover. | 10-22-2015 |
20150316398 | SYSTEM FOR MEASURING AN OIL RETENTION VOLUME IN A LUBRICATING SYSTEM - A system for measuring an oil retention volume of a first member of an engine lubricating system, the injected oil flowing inside the first member mixed with a first air volume, the mixture forming a first fluid, the measuring system including an oil injector at the inlet of the lubricating system; a first flowmeter to measure a first oil flow rate at the inlet of the lubricating system; a second flowmeter at the outlet of the first member to measure a second flow rate of the first fluid at the outlet of the first member; a measuring device to calculate a first value representing a quantity of oil in a volume of the first fluid flowing inside the first member; a calculator to calculate a third oil flow rate at the outlet from the second flow rate of the first fluid measured and the first value calculated and the instantaneous oil retention volume in the first member from the comparison of the first oil flow rate with the third oil flow rate. | 11-05-2015 |
Patent application number | Description | Published |
20120310283 | SEGMENTAL SPINAL FIXATION SYSTEM AND A METHOD OF FIXATING A PLURALITY OF SPINAL SEGMENTS - A spinal fixation system includes a plurality of segmental members each having a concave end and a convex end, and aligned end to end with the convex end of one of the segmental members disposed within the concave end of an adjacent segmental member to define a segmental rod. The rod is formed for attachment to a plurality of spinal segments, and then tensioned to generate a stiffness in the segmental rod sufficient to maintain the pre-formed shape. A locking mechanism secures a tensile connector to the segmental rod and maintains the tension of the tensile connector once secured and the shape of the preformed segmental rod. The locking mechanism includes a crimping device through which the tensile connector passes, and a guide device through which the tensile connector wraps around. The crimping device is compressed to grasp and secure the tensile connector in place relative to the segmental rod. | 12-06-2012 |
20140093543 | METHOD AND VACUUM CONTAINER FOR PREPARING A BONE GRAFT - A vacuum container supports a cancellous device fully immersed within a solution of a bone growth promoting substance in a sealed chamber. The solution may include one of a Demineralized Bone Matrix (DBM) solution, a morphegenic protein solution, or a stem cell solution. A vacuum creating device is in fluid communication with the sealed chamber, and is operable to remove air from within the sealed chamber to create a vacuum therein. Removing air from the sealed chamber also removes air from a plurality of voids in the cancellous device, which allows the solution to fill the voids and saturate the cancellous device in preparation for use as a bone graft. | 04-03-2014 |
20150335791 | METHOD OF PREPARING A BONE GRAFT - A vacuum container supports a macroscopic sized cancellous device fully immersed within a solution of a bone growth promoting substance in a sealed chamber. The solution may include one of a Demineralized Bone Matrix (DBM) solution, a morphegenic protein solution, or a stem cell solution. A vacuum creating device is in fluid communication with the sealed chamber, and is operable to remove air from within the sealed chamber to create a vacuum therein. Removing air from the sealed chamber also removes air from a plurality of voids in the cancellous device, which allows the solution to fill the voids and saturate the cancellous device in preparation for use as a bone graft. The cancellous device may further be agitated while the air is being removed from the voids in the cancellous device to further promote saturation of the voids in the cancellous device with the solution. | 11-26-2015 |