Patents by Inventor Yves-Andrè Liverato
Yves-Andrè Liverato 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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Publication number: 20200166078Abstract: A bearing includes at least one bearing ring, a target ring and a coupling element. The coupling element is provided for maintaining the relative position of the bearing ring to the target ring. The coupling element includes an alignment surface that is adapted to align the target ring with one of a housing or a shaft into/onto which the bearing ring is to be mounted.Type: ApplicationFiled: November 4, 2019Publication date: May 28, 2020Inventors: Yves-André Liverato, Vincent Sausset, Olivier Verbe
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Patent number: 9206841Abstract: A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between the inner and outer rings, and an annular housing surrounding at least one of the rings, said outer ring comprising two separate parts, the housing comprising two distinct parts for retaining the parts of said outer ring and fixing means for fixing the distinct parts together. The first part of the housing comprises an inner axial cylindrical portion for retaining radially said outer ring and the second part of the housing comprises an outer axial cylindrical portion surrounding said inner axial cylindrical portion.Type: GrantFiled: May 16, 2011Date of Patent: December 8, 2015Assignee: AKTIEBOLAGET SKFInventors: Stephane Cordier, Yves-André Liverato, Charles Massoteau, Pietro Tesini
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Patent number: 9182029Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing comprises at least one pressed ring distinct from the constituent elements of the one-way clutch device. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.Type: GrantFiled: July 15, 2013Date of Patent: November 10, 2015Assignee: AKTIEBOLAGET SKFInventors: Ludovic Fenayon, Alain Gezault, Eve Goujon, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury, Eric Robert
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Patent number: 9157493Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing is an angular-contact bearing and comprises at least one pressed ring comprising means of attachment of the rolling bearing to the first element or the second element. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.Type: GrantFiled: July 15, 2013Date of Patent: October 13, 2015Assignee: AKTIEBOLAGET SKFInventors: Ludovic Fenayon, Alain Gezault, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury
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Patent number: 9097293Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing is an angular-contact bearing and comprises at least one pressed ring comprising means of attachment of the rolling bearing to the first element or the second element. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.Type: GrantFiled: July 15, 2013Date of Patent: August 4, 2015Assignee: AKTIEBOLAGET SKFInventors: Ludovic Fenayon, Alain Gezault, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury
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Publication number: 20150176557Abstract: A torque transmission mechanism, for a starter for an internal combustion engine, is adapted to transmit a starting torque from a starter motor to a crankshaft. The torque transmission mechanism comprises a ring gear that transmits the starting torque and a one-way clutch disposed between the ring gear and the crankshaft, this ring gear comprising a gear side portion to which the starting torque is transmitted from the starter motor via gear mesh, and a flange extending between the gear side portion and an inner ring of the one-way clutch. The flange comprises an inner section which forms the inner ring of the one-way clutch and an outer section fixed to the inner section and on which the gear side portion is fixed. The inner and outer sections of the flange are fixed together by a mechanical assembly other than welding.Type: ApplicationFiled: December 17, 2014Publication date: June 25, 2015Applicant: Aktiebolaget SKFInventors: François CHAMPALOU, Nicolas BERRUET, Charles CHAMBONNEAU, Richard CORBETT, Yves-André LIVERATO, Patrice RIBAULT
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Patent number: 9010741Abstract: The suspension bump stop device comprises a rolling bearing (44) that forms an axial bump stop, equipped with an upper ring (46), with a lower ring (48) and with a plurality of rolling elements positioned between the rings, the upper and lower rings being supported respectively by an upper cup (40) and a lower cup (42), the lower cup forming a bearing means for a suspension spring (18), at least one sealing lip being provided on one of the cups so that it bears against a bearing surface portion of the other cup. The bearing surface portion is substantially cylindrical, the sealing lip being directed downwards away from the rolling bearing and bearing with radial interference against the said surface portion, the said substantially cylindrical surface portion being connected towards the top to a shoulder against which the lip can bear if the two cups become radially eccentric relative to one another.Type: GrantFiled: July 29, 2009Date of Patent: April 21, 2015Assignee: Aktiebolaget SKFInventors: Samuel Viault, Yves-André Liverato, Cédric Brulard, Guy Heck
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Publication number: 20150043852Abstract: A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between a pair of raceways, each raceway provided on the respective inner ring and outer ring, and an annular housing comprising at least one part surrounding at least one of the rings. The outer ring comprises two separate parts. Each of the two parts of the outer ring defines one closed space with the housing. The ratio between the radius of one raceway and the diameter of the rolling elements is higher than 0:55.Type: ApplicationFiled: December 28, 2011Publication date: February 12, 2015Inventors: Thierry Adane, Stéphane Cordier, Yves-André Liverato, Pietro Tesini
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Publication number: 20150013848Abstract: A method for manufacturing a torque transmission mechanism between a starter motor and a crankshaft of an internal combustion engine, comprising a one-way clutch including an outer ring fast in rotation with the crankshaft via a front plate. This method comprises the following steps: a) forging the outer ring out of carburizing steel, b) carburizing the outer ring, c) tempering the outer ring, d) grinding an inner surface of the outer ring, e) manufacturing the front plate out of standard low equivalent carbon content steel, and f) assembling the front plate and the outer ring.Type: ApplicationFiled: July 9, 2014Publication date: January 15, 2015Applicant: AKTIEBOLAGET SKFInventors: Nicolas BERRUET, Charles CHAMBONNEAU, François CHAMPALOU, Richard CORBETT, Norbert HUHN, Yves-André LIVERATO, Patrice RIBAULT
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Publication number: 20150014119Abstract: A torque transmission mechanism for an internal combustion engine, adapted to transmit a starting torque from a starter motor to a crankshaft of the internal combustion engine. The torque transmission mechanism includes a ring gear that transmits the starting torque, a one-way clutch disposed between the ring gear and the crankshaft, a bearing including a first ring coupled in rotation with the gear ring and a second ring coupled in rotation with the crankshaft and a front plate for coupling in rotation the crankshaft with the one-way clutch. The front plate is coupled in rotation with the crankshaft via the second ring of the bearing, by welding along a direction parallel to a central axis of the second ring of the bearing.Type: ApplicationFiled: July 9, 2014Publication date: January 15, 2015Applicant: Aktiebolaget SKFInventors: Nicolas BERRUET, Charles CHAMBONNEAU, François CHAMPALOU, Richard CORBETT, Norbert HUHN, Yves-André LIVERATO, Patrice RIBAULT
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Publication number: 20140346005Abstract: The ball and ramp device for a toroidal variator includes a first disc and a second disc and a plurality of rolling elements disposed between ramps provided on the discs and extending along the circumferential direction. One of the discs provides a plate having the ramps, a ring delimiting an outer toroidal raceway and an intermediate supporting part axially interposed between said ring and the plate.Type: ApplicationFiled: October 24, 2011Publication date: November 27, 2014Inventors: Patrice Ribault, Yves-André Liverato
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Publication number: 20140341491Abstract: A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between the inner and outer rings, and an annular housing surrounding at least one of the rings, said outer ring comprising two separate parts, the housing comprising two distinct parts for retaining the parts of said outer ring and fixing means for fixing the distinct parts together. The first part of the housing comprises an inner axial cylindrical portion for retaining radially said outer ring and the second part of the housing comprises an outer axial cylindrical portion surrounding said inner axial cylindrical portion.Type: ApplicationFiled: May 16, 2011Publication date: November 20, 2014Inventors: Stephane Cordier, Yves-André Liverato, Charles Massoteau, Pietro Tesini
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Patent number: 8672555Abstract: Rolling bearing having an inner ring (1) and an outer ring (2) with a row of rolling elements (3) held by a cage (4) between bearing races provided on the two rings, and an annular housing (5) surrounding one of said rings. Said ring forms with the housing at least one closed space (21a), (21b), inside which a lubricant is located.Type: GrantFiled: November 4, 2008Date of Patent: March 18, 2014Assignee: Aktiebolaget SKFInventors: Jean-Luc Gardelle, Alexandre Manceau, Yves-Andrè Liverato
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Publication number: 20140034438Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing is an angular-contact bearing and comprises at least one pressed ring comprising means of attachment of the rolling bearing to the first element or the second element. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.Type: ApplicationFiled: July 15, 2013Publication date: February 6, 2014Inventors: Ludovic Fenayon, Alain Gezault, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury
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Publication number: 20140034439Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing is an angular-contact bearing and comprises at least one pressed ring comprising means of attachment of the rolling bearing to the first element or the second element. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.Type: ApplicationFiled: July 15, 2013Publication date: February 6, 2014Inventors: Ludovic Fenayon, Alain Gezault, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury
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Publication number: 20140027235Abstract: The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing comprises at least one pressed ring distinct from the constituent elements of the one-way clutch device. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.Type: ApplicationFiled: July 15, 2013Publication date: January 30, 2014Inventors: Ludovic Fenayon, Alain Gezault, Eve Goujon, Jean-Marie Guegan, Torbjorn Hedman, Jean-Luc Jadeau, Romuald Lescorail, Yves-André Liverato, Herve Maury, Eric Robert
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Publication number: 20130224015Abstract: Turbocharger comprising a shaft, a housing, a turbine wheel and a compressor wheel mounted onto the shaft, at least one rolling bearing located between the shaft and the housing and comprising an inner ring, an outer ring and at least one row of rolling elements between raceways provided on the rings. Said turbocharger comprises at least one intermediate sleeve radially located between the shaft and the inner ring of the rolling bearing.Type: ApplicationFiled: August 27, 2012Publication date: August 29, 2013Applicant: AKTIEBOLAGET SKFInventors: Nicolas BERRUET, Charles CHAMBONNEAU, Richard Corbett, Aurelien GHILBERT-SIMON, Yves-André LIVERATO, Patrice RIBAULT, Samuel Viault
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Publication number: 20130216406Abstract: Turbocharger comprising a shaft, a housing, a turbine wheel and a compressor wheel mounted onto the shaft, at least one rolling bearing located between the shaft and the housing and comprising an inner ring, an outer ring and at least one row of rolling elements between raceways provided on the rings. The turbocharger comprises at least one insulation means radially located between the inner ring and the shaft, so as to thermally isolate the inner ring from the shaft.Type: ApplicationFiled: August 24, 2012Publication date: August 22, 2013Applicant: AKTIEBOLAGET SKFInventors: Nicolas BERRUET, Charles CHAMBONNEAU, Richard Corbett, Aurelien GHILBERT-SIMON, Yves-André LIVERATO, Patrice RIBAULT, Samuel Viault
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Patent number: 8485734Abstract: This ball bearing (1) forms an axial force transmission member and comprises an inner ring (3) and an outer ring (4), and a single series of balls (6) placed in a rolling chamber between the inner ring (3) and the outer ring (4). A first ring (4), amongst the inner ring (3) and the outer ring (4), forms a travel track (411) in a section of a sphere centered on a geometric point (C4) belonging to an axis of symmetry (X4) of this first ring (4). The first ring (4) supports a seal (11) insulating the rolling chamber relative to the outside. The second ring (3), amongst the inner ring (3) and the outer ring (4), is provided with a sealing zone (314) designed to interact with the seal and in the shape of a section of a sphere centered on a second geometric point (C3) belonging to an axis of symmetry (X3) of the second ring. The radii (R3, R4) of the sections of a sphere are different.Type: GrantFiled: September 15, 2009Date of Patent: July 16, 2013Assignee: Aktiebolaget SKFInventors: Benoit Arnault, Yves-André Liverato, Jacques Charpentier, Sylvain Bussit
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Publication number: 20110222806Abstract: This hall bearing (1) forms an axial force transmission member and comprises an inner ring (3) and an outer ring (4), and a single series of balls (6) placed in a rolling chamber between the inner ring (3) and the outer ring (4). A first ring (4), amongst the inner ring (3) and the outer ring (4), forms a travel track (411) in a section of a sphere centred on a geometric point (C4) belonging to an axis of symmetry (X4) of this first ring (4). The first ring (4) supports a seal (11) insulating the rolling chamber relative to the outside. The second ring (3), amongst the inner ring (3) and the outer ring (4), is provided with a sealing zone (314) designed to interact with the seal and in the shape of a section of a sphere centred on a second geometric point (C3) belonging to an axis of symmetry (X3) of the second ring. The radii (R3, R4) of the sections of a sphere are different.Type: ApplicationFiled: September 15, 2009Publication date: September 15, 2011Applicant: AKTIEBOLAGET SKFInventors: Benoit Arnault, Yves-André Liverato, Jacques Charpentier, Syivain Bussit