Patents by Inventor Boris Morelli
Boris Morelli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10816060Abstract: A reduction gear including an input shaft including an input gear, an output shaft including an output gear, and two intermediate transmission lines, each intermediate transmission line including an intermediate shaft including a first stage of teeth and a second stage of teeth, the stages rotating as one, and an additional gear for meshing respectively with the first stage of teeth and the input gear, or with the second stage of teeth and the output gear, and the reduction gear wherein the input gear or the output gear meshing with the additional gears is axially offset with respect to the stage of teeth of the intermediate shafts meshing with the additional gears.Type: GrantFiled: February 15, 2017Date of Patent: October 27, 2020Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Benjamin Feraud, Aldric Renaud Gabriel Marie Moreau De Lizoreux, Boris Morelli, Maxime Amiet, Antoine Mathieu
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Patent number: 10688608Abstract: A method for aligning toothing in an assembly of two half-ring gears is provided: an angular positioning pin is provided which is to be received in respective holes of the half-ring gears; the holes are drilled on the first half-ring gear such that the first hole has a first cross-section that is smaller than the final cross-section thereof; the angles between the teeth are compared between the two half-ring gears, and an angular difference between said angles of the half-ring gears is deduced therefrom; the first hole is redrilled to the final cross-section, while the centre of the hole is angularly shifted by the value of the angular difference; the pin is engaged in the holes, and the half-ring gears are then assembled using an interference fit.Type: GrantFiled: October 13, 2016Date of Patent: June 23, 2020Assignee: Safran Transmission SystemsInventors: Pauline Marie Cécile Autran, Guillaume Beck, Boris Morelli, Jordane Peltier, Jean Clayette
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Patent number: 10443697Abstract: Speed reduction gear comprising two intermediate transmission lines, in particular for a turbine engine, comprising an input line (12) and an output line that is driven by the input line via said intermediate transmission lines, said intermediate transmission lines being substantially parallel, characterized in that said reduction gear comprises means for distributing loads between said intermediate lines, said load distribution means comprising swiveling coupling means (30) for rotatably coupling one end of the input line, and oil-damping means (40, 50) for damping radial movements of an opposite end of the input line.Type: GrantFiled: September 18, 2015Date of Patent: October 15, 2019Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Benjamin Feraud, Maxime Amiet, Guillaume Beck, Samuel Raymond Germain Becquerelle, Antoine Mathieu, Boris Morelli
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Patent number: 10415691Abstract: A device lubricates elements of an accessory drive system of an aircraft. The device includes a pinion having a pinion shank that is hollow and that has an axis of rotation, a shaft arranged inside the pinion shank and extending along the axis of rotation, a space between the shaft and the pinion shank allowing displacement of oil, an oil reservoir arranged facing the space, at a first end of the pinion shank, and an oil outlet duct arranged facing the space, at a second end of the pinion shank. The pinion shank and the shaft together form a pump and cooperate to drive the oil from the reservoir toward the oil outlet duct thanks to the rotation of the pinion shank around the shaft.Type: GrantFiled: January 19, 2016Date of Patent: September 17, 2019Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Boris Morelli, Stephane Prunera-Usach
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Publication number: 20190234490Abstract: A reduction gear including an input shaft including an input gear, an output shaft including an output gear, and two intermediate transmission lines, each intermediate transmission line including an intermediate shaft including a first stage of teeth and a second stage of teeth, the stages rotating as one, and an additional gear for meshing respectively with the first stage of teeth and the input gear, or with the second stage of teeth and the output gear, and the reduction gear wherein the input gear or the output gear meshing with the additional gears is axially offset with respect to the stage of teeth of the intermediate shafts meshing with the additional gears.Type: ApplicationFiled: February 15, 2017Publication date: August 1, 2019Applicant: SAFRAN TRANSMISSION SYSTEMSInventors: Benjamin FERAUD, Aldric Renaud Gabriel Marie MOREAU DE LIZOREUX, Boris MORELLI, Maxime AMIET, Antoine MATHIEU
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Patent number: 10247107Abstract: An accessory gearbox capable of driving the accessory devices of a gas turbine engine, such as an aircraft engine. Said accessory gearbox includes a housing and a plurality of gear wheels having axes that are parallel to one another inside the housing. The housing includes a means for attaching the accessory devices to the wall of the housing and driving them, via the gear wheels, through openings in the wall of the housing. The gear wheels are supported in the housing by rolling-element bearings. Each rolling element includes a first ring that is stationary relative to the housing, and a movable ring, secured to the gear wheel, wherein at least one of said gear wheels is supported by a single rolling element.Type: GrantFiled: March 19, 2015Date of Patent: April 2, 2019Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Boris Morelli, Stéphane Prunera-Usach, Julien Viel
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Patent number: 10167895Abstract: To overcome defects in the supply of pressurized lubricant, a hydrodynamic bearing for guiding a shaft (14) includes a stationary outer annular wall, a rotatable inner annular wall (20), and a space (22) between the walls. The outer annular wall comprises an opening for supplying pressurized lubricant to the space so as to form a film of load-bearing fluid. The bearing includes a cavity (30) externally defined by the inner annular wall (20) and axially defined by two transverse annular walls (31A, 31B) secured to the shaft (14) and arranged on both sides of the cavity. The inner annular wall (20) comprises fluid connection orifices (32) connecting the cavity (30) to the space (22). The cavity (30) is divided into compartments (50, 52) by a partition wall (48) configured such that the cavity forms a lubricant supply for a transient operational phase.Type: GrantFiled: February 23, 2016Date of Patent: January 1, 2019Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Lionel Bauduin, Maxence Guillemont, Boris Morelli, Julien Viel
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Publication number: 20180372197Abstract: The invention relates to a speed reducer (10) with two intermediate transmission lines (16), in particular for a turbine engine, including an input line (12) and an output line (14) driven by the input line via said intermediate lines, said intermediate lines being substantially parallel, characterised in that it includes load-distribution means between said intermediate lines, said load-distribution means comprising ball-and-socket means (30) for rotatably coupling a first end of the input line, first means (34) for damping the radial movements of said end of the input line, and second means (34) for damping the radial movements of a second opposite end of the input line.Type: ApplicationFiled: September 20, 2016Publication date: December 27, 2018Inventors: Antoine MATHIEU, Benjamin FERAUD, Boris MORELLI, Maxime AMIET
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Publication number: 20180297157Abstract: A method for aligning toothing in an assembly of two half-ring gears is provided: an angular positioning pin is provided which is to be received in respective holes of the half-ring gears; the holes are drilled on the first half-ring gear such that the first hole has a first cross-section that is smaller than the final cross-section thereof; the angles between the teeth are compared between the two half-ring gears, and an angular difference between said angles of the half-ring gears is deduced therefrom; the first hole is redrilled to the final cross-section, while the centre of the hole is angularly shifted by the value of the angular difference; the pin is engaged in the holes, and the half-ring gears are then assembled using an interference fit.Type: ApplicationFiled: October 13, 2016Publication date: October 18, 2018Applicant: Safran Transmission SystemsInventors: Pauline Marie Cecile Autran, Guillaume Beck, Boris Morelli, Jordane Peltier, Jean Clayette
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Publication number: 20180266540Abstract: A device lubricates elements of an accessory drive system of an aircraft. The device includes a pinion having a pinion shank that is hollow and that has an axis of rotation, a shaft arranged inside the pinion shank and extending along the axis of rotation, a space between the shaft and the pinion shank allowing displacement of oil, an oil reservoir arranged facing the space, at a first end of the pinion shank, and an oil outlet duct arranged facing the space, at a second end of the pinion shank. The pinion shank and the shaft together form a pump and cooperate to drive the oil from the reservoir toward the oil outlet duct thanks to the rotation of the pinion shank around the shaft.Type: ApplicationFiled: January 19, 2016Publication date: September 20, 2018Applicant: SAFRAN TRANSMISSION SYSTEMSInventors: Boris MORELLI, Stephane PRUNERA-USACH
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Patent number: 10018087Abstract: The invention relates to an accessory gearbox (10) for a turbomachine, said gearbox being equipped with an air/oil separator (12) and comprising a casing (24) in which intermeshing pinions are mounted, one (18) of which is solidly connected to a coaxial shank (22) for driving at least one membrane filter (35) of the separator, characterized in that the membrane filter is mounted directly on a web of the pinion (18) inside the casing.Type: GrantFiled: June 12, 2014Date of Patent: July 10, 2018Assignee: SAFRAN TRANSMISSION SYSTEMSInventors: Stephane Prunera-Usach, Boris Morelli, Jordane Peltier
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Publication number: 20180017101Abstract: To overcome defects in the supply of pressurized lubricant, a hydrodynamic bearing for guiding a shaft (14) includes a stationary outer annular wall, a rotatable inner annular wall (20), and a space (22) between the walls. The outer annular wall comprises an opening for supplying pressurized lubricant to the space so as to form a film of load-bearing fluid. The bearing includes a cavity (30) externally defined by the inner annular wall (20) and axially defined by two transverse annular walls (31A, 31B) secured to the shaft (14) and arranged on both sides of the cavity. The inner annular wall (20) comprises fluid connection orifices (32) connecting the cavity (30) to the space (22). The cavity (30) is divided into compartments (50, 52) by a partition wall (48) configured such that the cavity forms a lubricant supply for a transient operational phase.Type: ApplicationFiled: February 23, 2016Publication date: January 18, 2018Inventors: Lionel Bauduin, Maxence Guillemont, Boris Morelli, Julien Viel
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Publication number: 20170321787Abstract: Speed reduction gear comprising two intermediate transmission lines, in particular for a turbine engine, comprising an input line (12) and an output line that is driven by the input line via said intermediate transmission lines, said intermediate transmission lines being substantially parallel, characterised in that said reduction gear comprises means for distributing loads between said intermediate lines, said load distribution means comprising swiveling coupling means (30) for rotatably coupling one end of the input line, and oil-damping means (40, 50) for damping radial movements of an opposite end of the input line.Type: ApplicationFiled: September 18, 2015Publication date: November 9, 2017Inventors: Benjamin FERAUD, Maxime AMIET, Guillaume BECK, Samuel Raymond Germain BECQUERELLE, Antoine MATHIEU, Boris MORELLI
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Publication number: 20170122214Abstract: An accessory gearbox capable of driving the accessory devices of a gas turbine engine, such as an aircraft engine. Said accessory gearbox includes a housing and a plurality of gear wheels having axes that are parallel to one another inside the housing. The housing includes a means for attaching the accessory devices to the wall of the housing and driving them, via the gear wheels, through openings in the wall of the housing. The gear wheels are supported in the housing by rolling-element bearings. Each rolling element includes a first ring that is stationary relative to the housing, and a movable ring, secured to the gear wheel, wherein at least one of said gear wheels is supported by a single rolling element.Type: ApplicationFiled: March 19, 2015Publication date: May 4, 2017Applicant: SAFRAN TRANSMISSION SYSTEMSInventors: Boris Morelli, Stéphane Prunera-Usach, Julien Viel
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Publication number: 20160305331Abstract: An accessory gearbox for a turbomachine, the gearbox being equipped with a pump and including intermeshing pinions, one of which is formed as a single piece with a coaxial shank for driving a rotary part of the pump, wherein said rotary part is directly mounted on the shank.Type: ApplicationFiled: June 17, 2014Publication date: October 20, 2016Applicant: Hispano-SuizaInventors: Stephane PRUNERA-USACH, Boris MORELLI, Samuel THIBERGE
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Patent number: 9429225Abstract: An epicyclic reduction gear, for example for a turbomachine, including a device forming a fluid circulation passage configured to generate a pressure drop, created by stacking at least two elements. Each element includes a passage for carrying fluid configured to generate a pressure drop and including an inlet and an outlet. The outlet, or inlet, of the passage of one of the elements is, respectively, connected to the inlet, or to the outlet, of the passage of the other element.Type: GrantFiled: September 3, 2013Date of Patent: August 30, 2016Assignee: HISPANO SUIZAInventors: Benjamin Feraud, Guillaume Beck, Boris Morelli, Jordane Peltier
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Publication number: 20160238126Abstract: The invention concerns a planet carrier (5) for an epicyclic speed reduction gear, comprising an annular cage (7) comprising two sides (9, 10) extending radially, linked by bridges (16), seats (6) extending axially between the sides (9, 10) and being intended to support planet gears mounted rotating about the seats (6). One (9) of the sides (9, 10) of the cage (7) is immovably fixed to a torque output member (8), in such a way as to form a single structural assembly.Type: ApplicationFiled: October 9, 2014Publication date: August 18, 2016Applicant: Hispano-SuizaInventors: Guillaume Beck, Boris Morelli, Jordane Peltier
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Publication number: 20160138444Abstract: The invention relates to an accessory gearbox (10) for a turbomachine, said gearbox being equipped with an air/oil separator (12) and comprising a casing (24) in which intermeshing pinions are mounted, one (18) of which is solidly connected to a coaxial shank (22) for driving at least one membrane filter (35) of the separator, characterised in that the membrane filter is mounted directly on a web of the pinion (18) inside the casing.Type: ApplicationFiled: June 12, 2014Publication date: May 19, 2016Inventors: Stephane Prunera-Usach, Boris Morelli, Jordane Peltier
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Publication number: 20150192199Abstract: An epicyclic reduction gear, for example for a turbomachine, including a device forming a fluid circulation passage configured to generate a pressure drop, created by stacking at least two elements. Each element includes a passage for carrying fluid configured to generate a pressure drop and including an inlet and an outlet. The outlet, or inlet, of the passage of one of the elements is, respectively, connected to the inlet, or to the outlet, of the passage of the other element.Type: ApplicationFiled: September 3, 2013Publication date: July 9, 2015Applicant: HISPANO-SUIZAInventors: Benjamin Feraud, Guillaume Beck, Boris Morelli, Jordane Peltier