Patents by Inventor Torbjorn Hedman
Torbjorn Hedman 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: 10393252Abstract: A pulley device for a tensioner roller or winding roller of a torque-transmission transmitter includes a pulley, a bearing, a spacer supporting the bearing and provided with a through bore, and a securing bolt extending into the bore in the spacer. The device further provides at least one means for captively securing the securing bolt relative to the spacer, the captive-securing means being breakable and inserted between the bolt and the spacer.Type: GrantFiled: August 4, 2016Date of Patent: August 27, 2019Assignee: Aktiebolaget SKFInventors: Frederic Liege, Torbjorn Hedman, Romuald Lescorail
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Patent number: 10132399Abstract: A pulley device for a tensioner roller provides a pulley, a bearing, a spacer supporting the bearing. The spacer is provided with a through bore, and a securing bolt extending to the inside of the bore in the spacer. The device includes at least one means for the temporary locking of the securing bolt in relation to the spacer, the temporary locking means being separable and inserted between the bolt and the spacer. A pulley device for a winding roller is also provided.Type: GrantFiled: June 1, 2016Date of Patent: November 20, 2018Assignee: AKTIEBOLAGET SKFInventors: Mickael Chollet, Alain Gezault, Torbjorn Hedman, Romuald Lescorail, Frederic Liege, Flavien Tesniere, Nicolas Tronquoy
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Publication number: 20170037953Abstract: A pulley device for a tensioner roller or winding roller of a torque-transmission transmitter includes a pulley, a bearing, a spacer supporting the bearing and provided with a through bore, and a securing bolt extending into the bore in the spacer. The device further provides at least one means for captively securing the securing bolt relative to the spacer, the captive-securing means being breakable and inserted between the bolt and the spacer.Type: ApplicationFiled: August 4, 2016Publication date: February 9, 2017Applicant: Aktiebolaget SKFInventors: Frederic Liege, Torbjorn Hedman, Romuald Lescorail
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Publication number: 20160356375Abstract: A pulley device for a tensioner roller provides a pulley, a bearing, a spacer supporting the bearing. The spacer is provided with a through bore, and a securing bolt extending to the inside of the bore in the spacer. The device includes at least one means for the temporary locking of the securing bolt in relation to the spacer, the temporary locking means being separable and inserted between the bolt and the spacer. A pulley device for a winding roller is also provided.Type: ApplicationFiled: June 1, 2016Publication date: December 8, 2016Applicant: Aktiebolaget SKFInventors: Mickael Chollet, Alain Gezault, Torbjorn Hedman, Romuald Lescorail, Frederic Liege, Flavien Tesniere, Nicolas Tronquoy
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Patent number: 9506538Abstract: A tension roller or reel device for a torque transmission element. The device comprises at least one bearing having one inner race, one outer race and at least one row of rolling elements between the inner race and the outer race, a pulley on top of the outer race, and a retaining screw inserted into a central bore of the inner race. The bore of the inner race is provided with a circumferential cavity in which a retaining ring is fitted securely and integrally, the retaining ring comprising an interaction feature providing interaction with the screw so as to allow an axial immobilization of the screw in relation to the bearing.Type: GrantFiled: March 19, 2015Date of Patent: November 29, 2016Assignee: AKTIEBOLAGET SKFInventors: Torbjorn Hedman, Romuald Lescorail, Frederic Liege, Nicolas Tronquoy
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Patent number: 9464700Abstract: A tension roller or reel device for a torque transmission element. The device comprises at least one bearing having one inner race, one outer race and at least one row of rolling elements between the inner race and the outer race, a pulley on top of the outer race, and a retaining screw inserted into a central bore of the inner race. The bore of the inner race is provided with a circumferential cavity in which an elastic ring is fitted non-securely and integrally, the cavity having an axial length strictly greater than the axial dimension of the elastic ring.Type: GrantFiled: March 19, 2015Date of Patent: October 11, 2016Assignee: AKTIEBOLAGET SKFInventors: Torbjorn Hedman, Nicolas Tronquoy
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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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Publication number: 20150267790Abstract: A tension roller or reel device for a torque transmission element. The device comprises at least one bearing having one inner race, one outer race and at least one row of rolling elements between the inner race and the outer race, a pulley on top of the outer race, and a retaining screw inserted into a central bore of the inner race. The bore of the inner race is provided with a circumferential cavity in which a retaining ring is fitted securely and integrally, the retaining ring comprising an interaction feature providing interaction with the screw so as to allow an axial immobilization of the screw in relation to the bearing.Type: ApplicationFiled: March 19, 2015Publication date: September 24, 2015Applicant: Aktiebolaget SKFInventors: Torbjorn HEDMAN, Romuald LESCORAIL, Frederic LIEGE, Nicolas TRONQUOY
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Publication number: 20150267791Abstract: A tension roller or reel device for a torque transmission element. The device comprises at least one bearing having one inner race, one outer race and at least one row of rolling elements between the inner race and the outer race, a pulley on top of the outer race, and a retaining screw inserted into a central bore of the inner race. The bore of the inner race is provided with a circumferential cavity in which an elastic ring is fitted non-securely and integrally, the cavity having an axial length strictly greater than the axial dimension of the elastic ring.Type: ApplicationFiled: March 19, 2015Publication date: September 24, 2015Applicant: AKTIEBOLAGET SKFInventors: Torbjorn HEDMAN, Nicolas TRONQUOY
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Patent number: 9140316Abstract: A mechanical system with a one-way clutch, such as a motor vehicle alternator pulley, includes an outer first ring and an inner second ring able to move relative to one another in rotation about a central axis and delimit between them, radially with respect to this central axis, an annular housing. The mechanical system includes a free-wheel mechanism having members arranged in the annular housing, and at least one rolling bearing providing rollers arranged in the annular housing. The first and second rings are common to the free-wheel mechanism and to the rolling bearing. The members of the free-wheel mechanism are cams in contact with a first race formed by the first ring and a second race formed by the second ring. The first and second races are circular, centered on the axis of rotation and have no ramp.Type: GrantFiled: September 25, 2013Date of Patent: September 22, 2015Assignee: AKTIEBOLAGET SKFInventors: Ludovic Fenayon, Alain Gezault, Torbjorn Hedman, Romuald Lescorail
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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: 20150152956Abstract: This disconnectable pulley device comprises a central member, a pulley mounted around the central member, a free wheel itself comprising several cams mounted between a first slippage path, made on an external radial surface of the central member or of an element secured to this member, and a second slippage path made on an internal radial surface of the pulley or of an element secured to the pulley, the free wheel ensuring a unidirectional clutch between the pulley and the central member. At least one slippage path, from among the first and second slippage path, and/or a portion of the cams intended to interact with one of the slippage paths comprises a tungsten disulfide layer.Type: ApplicationFiled: December 2, 2014Publication date: June 4, 2015Applicant: AKTIEBOLAGET SKFInventors: Ludovic FENAYON, Alain GEZAULT, Torbjorn HEDMAN
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Patent number: 9032863Abstract: Cam follower roller device, notably for an internal combustion engine fuel injection pump, comprising a tappet (12) and a roller (14) mounted to rotate on the tappet and intended to press against a cam. The tappet (12) comprises a roller support body (16), a shaft (26) for mounting the roller on the said body, and a guide sleeve (18) attached to the support body and at least partially surrounding the said body. The ends of the shaft are fixed in through-holes in the support body.Type: GrantFiled: May 31, 2010Date of Patent: May 19, 2015Assignee: AKTIEBOLAGET SKFInventors: Charles Chambonneau, Torbjorn Hedman, Gwenael Hingouet
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Publication number: 20150096860Abstract: The invention relates to a one-way clutch mechanical system, in particular a pulley-assembly for a motor vehicle alternator. The one-way clutch mechanical system includes an inner element and an outer element, which are movable relative to one another in rotation around a central axis (X1) and delimits an annular housing between them. The system further includes a one-way clutch device positioned in the annular housing, a member for damping a relative rotational movement between the inner and outer elements and for transmitting torque to the one-way clutch device, which is also positioned in that annular housing. The damping and torque transmission member is axially offset relative to the one-way clutch device, along the central axis (X1).Type: ApplicationFiled: October 6, 2014Publication date: April 9, 2015Applicant: Aktiebolaget SKFInventors: Ludovic Fenayon, Eve Goujon, Torbjorn Hedman, Romuald Lescorail
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Publication number: 20140083808Abstract: This mechanical system with one-way clutch, such as a motor vehicle alternator pulley, provides an outer first ring and an inner second ring able to move relative to one another in rotation about a central axis and delimit between them, radially with respect to this central axis, an annular housing. A free-wheel mechanism having members arranged in the annular housing. At least one rolling bearing providing rollers arranged in the annular housing. The first and second rings are common to the free-wheel mechanism and to the rolling bearing. The members of the free-wheel mechanism are cams in contact with a first race formed by the first ring and a second race formed by the second ring. The first and second races are circular, centred on the axis of rotation and have no ramp. An alternator may comprise such a mechanical system configured as a pulley with a one-way clutch.Type: ApplicationFiled: September 25, 2013Publication date: March 27, 2014Applicant: Aktiebolaget SKFInventors: Ludovic Fenayon, Alain Gezault, Torbjorn Hedman, Romuald Lescorail
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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: 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: 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: 20120125277Abstract: Cam follower roller device, notably for an internal combustion engine fuel injection pump, comprising a tappet (12) and a roller (14) mounted to rotate on the tappet and intended to press against a cam. The tappet (12) comprises a roller support body (16), a shaft (26) for mounting the roller on the said body, and a guide sleeve (18) attached to the support body and at least partially surrounding the said body. The ends of the shaft are fixed in through-holes in the support body.Type: ApplicationFiled: May 31, 2010Publication date: May 24, 2012Inventors: Charles Chambonneau, Torbjorn Hedman, Gwenael Hingouet