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公开(公告)号：EP4269253A1
公开(公告)日：2023-11-01
申请号：EP21909985.0
申请日：2021-11-05
发明人： KOMATSU, Kenji , IMAI, Hideyuki , IRIE, Kazuhiko , AIBE, Toru , MAEHATA, Keigo
摘要： A toroidal continuously variable transmission includes at least one containment body covering a target disc that is at least one of an input disc and an output disc. The containment body includes a ring that covers an outer peripheral surface of the target disc so as to be spaced apart from the outer peripheral surface of the target disc in a radial direction. A maximum dimension of the ring in an axial direction is larger than a maximum dimension of the outer peripheral surface of the target disc in the axial direction.
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公开(公告)号：EP3702644A1
公开(公告)日：2020-09-02
申请号：EP18870658.4
申请日：2018-10-18
摘要： A toroidal continuously variable transmission includes: input and output discs; a power roller sandwiched between the input disc and the output disc so as to be tiltable; a trunnion supporting the power roller and configured to be tiltable about a tilt axis of the power roller and reciprocatable in a direction along the tilt axis; a piston attached to a shaft portion of the trunnion so as to be externally fitted to the shaft portion; and a cylinder forming a pressure chamber which makes the piston reciprocate in the direction along the tilt axis. An inside gap is formed between an outer peripheral surface of the shaft portion of the trunnion and an inner peripheral surface of the piston.
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公开(公告)号：EP3604857A1
公开(公告)日：2020-02-05
申请号：EP18771990.1
申请日：2018-03-20
发明人： ITAGAKI, Hirofumi , KITA, Masahiro , MATSUDA, Kippei , TANAKA, Kenichiro , IMAI, Hideyuki , KOMATSU, Kenji
摘要： Provided is a pressing device for toroidal continuously variable transmission capable of reducing hysteresis that occurs between torque and pressing force. An intermediate sliding member 27 is provided in at least one location of a portion between an end surface on the outside in the radial direction of the retainer 13 of the roller 14 arranged on the outermost side in the radial direction and an inside surface of the pocket 25 on the outside in the radial direction, and a portion between an end surface on the outside in the radial direction of the retainer 13 of one roller 14 of adjoining rollers 14 in the radial direction and an end surface on the inside in the radial direction of the retainer 13 of another roller 14. As a result, the contact area of a sliding contact portion 32 is made smaller than in a case where an intermediate sliding member 27 is not provided.
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公开(公告)号：EP4083471A1
公开(公告)日：2022-11-02
申请号：EP20906580.4
申请日：2020-12-18
发明人： KOMATSU, Kenji , IMAI, Hideyuki , ARISAWA, Hidenori , SHINODA, Yuji , TANAKA, Mitsuaki , NOGUCHI, Yoshiyuki
摘要： A toroidal continuously variable transmission includes: an input disc; an output disc; a power roller; a trunnion; a support that supports the power roller such that the power roller is rotatable relative to the trunnion; a thrust bearing that receives a load of the rotating power roller in a direction along a rotation axis of the power roller; and an oil passage through which lubricating oil is supplied to the thrust bearing. An opposing surface of the power roller which surface is opposed to the support includes a first bearing groove. An opposing surface of the support which surface is opposed to the power roller includes a second bearing groove. A virtual axis of a discharge port of a nozzle included in the oil passage reaches a bearing groove that is one of the first bearing groove and the second bearing groove. When viewed from a direction perpendicular to the direction along the rotation axis, a portion of a retainer which portion is located at a radially inner side of a retaining hole of the retainer and a portion located at a radially inner side of the bearing groove are located at respective sides opposite to each other across the virtual axis and away from the virtual axis.
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公开(公告)号：EP3702643A1
公开(公告)日：2020-09-02
申请号：EP18869501.9
申请日：2018-10-18
摘要： A toroidal continuously variable transmission includes: first and second pistons attached to a shaft portion of a trunnion so as to be externally fitted to the shaft portion, the first and second pistons being arranged so as to be lined up in a direction along a tilt axis; and a cylinder forming a first pressure chamber which makes the first piston move toward a first side in the direction along the tilt axis and a second pressure chamber which makes the second piston move toward a second side in the direction along the tilt axis. The cylinder includes a first lubricating oil passage, and the shaft portion of the trunnion includes a second lubricating oil passage. A third lubricating oil passage through which the first lubricating oil passage communicates with the second lubricating oil passage is formed between the first piston and the second piston.
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公开(公告)号：EP3270010A1
公开(公告)日：2018-01-17
申请号：EP16764439.2
申请日：2016-03-08
IPC分类号： F16H61/00 , F16H15/38 , F16H61/664 , H02K7/10
CPC分类号： F16H15/38 , B62M11/12 , F16H15/52 , F16H61/00 , F16H61/664 , F16H2302/04 , H02K7/10 , H02K7/18
摘要： In a transmission device, a power roller transmits a rotational driving force from an input disc to an output disc in a transmission ratio (transmission gear ratio) corresponding to a tilt motion angle. The power roller allows the transmission ratio to be changed in such a manner that the position of the trunnion on which the power roller is tiltably supported is changed by a trunnion drive mechanism. Hydraulic oil is supplied from a hydraulic pump to the trunnion drive mechanism via a direction selector valve. The direction selector valve selects a flow direction of the hydraulic oil to supply the hydraulic oil to a speed reduction chamber or a speed increase chamber of the trunnion drive mechanism, and discharge the hydraulic oil from the other. In a case where a discharge condition is met, the controller controls a movement of the discharge valve to discharge the hydraulic oil from the speed increase chamber.
摘要翻译： 在变速器装置中，动力辊以对应于倾斜运动角度的变速比（变速比）将来自输入盘的旋转驱动力传递到输出盘。 动力辊允许传动比以这样的方式改变，使得动力辊可倾斜地支撑在其上的耳轴的位置通过耳轴驱动机构来改变。 液压油通过方向选择阀从液压泵供应到耳轴驱动机构。 方向选择阀选择工作油的流动方向，以将工作油供应到耳轴驱动机构的减速室或增速室，并且将工作油从另一个排出。 在满足排出条件的情况下，控制器控制排出阀的移动以从增速室排出液压油。
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公开(公告)号：EP4043347A1
公开(公告)日：2022-08-17
申请号：EP20873561.3
申请日：2020-10-06
摘要： A toroidal continuously variable transmission includes a rotating shaft, a pair of discs, at least one power roller, and at least one bearing arranged between the rotating shaft and a casing. At least one of the pair of discs includes: a disc main body including a concave surface opposed to the power roller; and a cylindrical portion projecting from the disc main body along the rotation axis toward an opposite side of the power roller. The cylindrical portion is inserted between the bearing and the rotating shaft.
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8.发明公开
公开(公告)号：EP4005929A1
公开(公告)日：2022-06-01
申请号：EP20845041.1
申请日：2020-06-25
摘要： Provided are: a toroidal continuously variable transmission that can achieve suitable oil feed both for lubrication at contact interfaces between a power roller and discs and for cooling of the power roller; and a drive mechanism-integrated electricity generation apparatus for an aircraft, the electricity generation apparatus including the toroidal continuously variable transmission. The toroidal continuously variable transmission includes: input and output discs opposed to each other; a power roller tiltably held between the input and output discs to transmit rotational drive power of the input disc to the output disc at a speed ratio determined by a tilt angle of the power roller; at least one lubrication outlet that discharges an oil toward at least one contact interface between the input or output disc and the power roller; and at least one cooling outlet that discharges the oil toward the power roller. The cooling outlet and the lubrication outlet are arranged such that a distance between the cooling outlet and a point at which the oil discharged from the cooling outlet contacts the power roller is smaller than a distance between the lubrication outlet and the contact interface.
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公开(公告)号：EP3604858A1
公开(公告)日：2020-02-05
申请号：EP18772673.2
申请日：2018-03-20
发明人： ITAGAKI, Hirofumi , KITA, Masahiro , MATSUDA, Kippei , TANAKA, Kenichiro , IMAI, Hideyuki , KOMATSU, Kenji
摘要： Provided is a pressing device for a toroidal continuously variable transmission that is capable of sufficiently supplying lubrication oil to all rollers inside a pocket, and is capable of suppressing the occurrence of fretting wear on the rolling surfaces of the rollers, a first cam surface and a second cam surface. An oil passage 28 is provided for supplying lubrication oil to the inside of each pocket 25 in the inside portion in the radial direction of a retainer 14 that holds a plurality of more than one roller 13 arranged in a row in the radial direction. The center axis O 29 of a discharge port 29 that is provided on an end portion on the downstream side of the oil passage 28 and that opens to the inside surface in the radial direction of the pocket 25 is inclined toward the front side in the rotational direction of the retainer 14 with respect to the center axis of the pocket 25.
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