公开(公告)号：US20220341398A1

公开(公告)日：2022-10-27

申请号：US17642713

申请日：2020-08-17

申请人： ZF FRIEDRICHSHAFEN AG ,  ZF WIND POWERANTWERPEN N.V. ,  VESTAS WIND SYSTEMS A/S

发明人： Dirk STRASSER ,  Dietmar WEIST ,  Deyan STOYANOV ,  Ralf SPERLICH

IPC分类号： F03D15/00 ,  F16H15/52 ,  F16H57/029

摘要： An arrangement includes a transmission, a pitch tube, and a fixation device configured to affix the pitch tube in the transmission. The fixation device is electrically insulated from the pitch tube. The pitch tube can be axially movable relative to the fixation device. The pitch tube can be fixed in a shaft or a rotatably-mounted planet carrier of the transmission by the fixation device.

公开(公告)号：US20220120340A1

公开(公告)日：2022-04-21

申请号：US17563910

申请日：2021-12-28

申请人： Fallbrook Intellectual Property Company LLC

发明人： Jon M. Nichols ,  Brad P. Pohl ,  Daniel J. Dawe ,  Oronde J. Armstrong ,  Charles B. Lohr ,  Loren T. McDaniel ,  Matthew P. Simister ,  Fernand A. Thomassy ,  Ghayyurul I. Usmani ,  Paul M. Elhardt ,  Terry L. Stewart ,  Peter D. Poxton ,  Elton L. Eidson

IPC分类号： F16H15/28 ,  F16H15/52 ,  F16H57/02 ,  F16H57/04

摘要： Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a shift rod that cooperates with a shift rod nut to actuate a ratio change in a CVT. In another embodiment, an axial force generating mechanism can include a torsion spring, a traction ring adapted to receive the torsion spring, and a roller cage retainer configured to cooperate with the traction ring to house the torsion spring. Various inventive idler-and-shift-cam assemblies can be used to facilitate shifting the ratio of a CVT. Embodiments of a hub shell and a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.

公开(公告)号：US20220074470A1

公开(公告)日：2022-03-10

申请号：US17527775

申请日：2021-11-16

申请人： Fallbrook Intellectual Property Company LLC

发明人： Jon M. Nichols

IPC分类号： F16H15/52

摘要： A ball-planetary continuously variable transmission (CVT) capable of stable control in forward and reverse rotation over a range of speed ratios including underdrive and overdrive is provided. Imparting a skew angle (zeta) causes unbalanced forces that change the tilt angle (gamma), resulting in a change in speed ratio of the CVT. Angularly orientating a control system of the CVT with a positive offset angle (psi) configures the CVT for operation in a first direction of rotation or angularly orientating the control system with a negative offset angle (psi) configures the CVT for operation in a reverse direction of rotation. A control system for configuring the offset angle (psi) may lead or trail the planets. The control system may configure a larger offset angle for more stable control or may configure a smaller offset angle for higher sensitivity in potential rollback scenarios.

公开(公告)号：US20210164563A1

公开(公告)日：2021-06-03

申请号：US17177046

申请日：2021-02-16

申请人： Fallbrook Intellectual Property Company LLC

发明人： Fernand A. Thomassy ,  Charles B. Lohr ,  Brad P. Pohl ,  David Brian Jackson

IPC分类号： F16H61/664 ,  B60W10/108 ,  F16H61/66 ,  F16H15/28 ,  B60W30/18 ,  F16H15/52

摘要： A continuously variable transmission capable of operating in a forward direction or reverse direction may be controlled in the reverse direction by providing an initial skew angle in a first skew direction, followed by a set or sequence of skew angle adjustments in an opposite direction to prevent runaway or other unintended consequences. A continuously variable transmission may include a timing plate to maintain all planets at an angle or within a range of an angle in forward and reverse operations.

公开(公告)号：US20200018384A1

公开(公告)日：2020-01-16

申请号：US16276505

申请日：2019-02-14

申请人： Fallbrook Intellectual Property Company LLC

发明人： Jon M. Nichols ,  Brad P. Pohl ,  Daniel J. Dawe ,  Oronde J. Armstrong ,  Charles B. Lohr ,  Loren T. McDaniel ,  Matthew P. Simister ,  Fernand A. Thomassy ,  Ghayyurul I. Usmani ,  Paul M. Elhardt ,  Terry L. Stewart ,  Peter D. Poxton ,  Elton L. Eidson

IPC分类号： F16H15/28 ,  F16H15/52 ,  F16H57/02 ,  F16H57/04

摘要： Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT). In one embodiment, a main axle is adapted to receive a shift rod that cooperates with a shift rod nut to actuate a ratio change in a CVT. In another embodiment, an axial force generating mechanism can include a torsion spring, a traction ring adapted to receive the torsion spring, and a roller cage retainer configured to cooperate with the traction ring to house the torsion spring. Various inventive idler-and-shift-cam assemblies can be used to facilitate shifting the ratio of a CVT. Embodiments of a hub shell and a hub cover are adapted to house components of a CVT and, in some embodiments, to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces and braking features for a CVT are disclosed.

公开(公告)号：US10253881B2

公开(公告)日：2019-04-09

申请号：US15161033

申请日：2016-05-20

申请人： Fallbrook Intellectual Property Company LLC

发明人： John Hamrin

IPC分类号： F16H15/52 ,  F16H63/06 ,  F16H61/664 ,  F16H13/08 ,  F16H13/14 ,  F16H15/50 ,  F16H15/28

摘要： A speed based axial force generation mechanism may generate axial force corresponding to a rotational speed of a speed based axial force generation system relative to a central axis. As the speed based axial force generation system rotates at increasing speeds, inertia causes a change in the configuration of a first rigid member and a second rigid member, resulting in a change in the axial force generated by the mechanism.

公开(公告)号：US10253880B2

公开(公告)日：2019-04-09

申请号：US15435859

申请日：2017-02-17

申请人： Fallbrook Intellectual Property Company LLC

发明人： Brad P. Pohl ,  Fernand A. Thomassy ,  Charles B. Lohr ,  Scott T. McBroom

IPC分类号： F16H15/40 ,  F16H61/664 ,  F02B67/04 ,  F16H15/42 ,  F16H15/50 ,  F16H61/00 ,  F16H61/02 ,  F16H59/40 ,  F16H63/06 ,  F16H59/70 ,  F16H63/42 ,  F16H15/52

摘要： Inventive embodiments are directed to components, subassemblies, systems, and/or methods for continuously variable accessory drives (CVAD). In one embodiment, a skew-based control system is adapted to facilitate a change in the ratio of a CVAD. In another embodiment, a skew-based control system includes a skew actuator coupled to a carrier member. In some embodiments, the skew actuator is configured to rotate a carrier member of a CVT. Various inventive traction planet assemblies can be used to facilitate shifting the ratio of a CVT. In some embodiments, the traction planet assemblies include legs configured to cooperate with the carrier members. In some embodiments, a traction planet assembly is operably coupled to the carrier members. Embodiments of a shift cam and traction sun are adapted to cooperate with other components of the CVT to support operation and/or functionality of the CVT. Among other things, shift control interfaces for a CVT are disclosed.

公开(公告)号：US10197147B2

公开(公告)日：2019-02-05

申请号：US15074267

申请日：2016-03-18

申请人： Fallbrook Intellectual Property Company LLC

发明人： Charles B. Lohr ,  Brad P. Pohl

IPC分类号： F16H15/50 ,  F16H15/52 ,  F16H55/32 ,  F16H57/04 ,  F16C19/54 ,  B62M11/16 ,  F16H57/08

摘要： Components, subassemblies, systems, and/or methods for continuously variable transmissions (CVT) are provided. In one embodiment, a CVT has a number of spherical planets in contact with an idler assembly. Various idler assemblies can be used to facilitate to improve durability, fatigue life, and efficiency of a CVT. In one embodiment, the idler assembly has two rolling elements having contact surfaces that are angled with respect to a longitudinal axis of the CVT. In some embodiments, a bearing is operably coupled between the first and second rolling elements. The bearing is configured to balance axial force between the first and second rolling elements. In one embodiment, the bearing is a ball bearing. In another embodiment, the bearing is an angular contact bearing. In yet other embodiments, needle roller bearings are employed.

公开(公告)号：US20180347693A1

公开(公告)日：2018-12-06

申请号：US16102437

申请日：2018-08-13

申请人： Fallbrook Intellectual Property Company LLC

发明人： Fernand A. Thomassy ,  Charles B. Lohr ,  Brad P. Pohl ,  David Brian Jackson

IPC分类号： F16H61/664 ,  F16H15/28 ,  F16H61/66 ,  F16H15/52

CPC分类号： F16H61/664 ,  F16H15/28 ,  F16H15/52 ,  F16H61/66 ,  Y10T477/619

摘要： A continuously variable transmission capable of operating in a forward direction or reverse direction may be controlled in the reverse direction by providing an initial skew angle in a first skew direction, followed by a set or sequence of skew angle adjustments in an opposite direction to prevent runaway or other unintended consequences. A continuously variable transmission may include a timing plate to maintain all planets at an angle or within a range of an angle in forward and reverse operations.

公开(公告)号：US09964203B2

公开(公告)日：2018-05-08

申请号：US15406215

申请日：2017-01-13

申请人： Dana Limited

发明人： Sebastian J. Peters ,  Patrick Sexton

IPC分类号： F16H57/08 ,  F16H15/52

CPC分类号： F16H57/082 ,  F16H15/28

摘要： Provided herein is a carrier assembly for a continuously variable transmission having a plurality of balls, each ball having a ball axle, the ball axle defining a tiltable axis of rotation, a first traction ring assembly in contact with each ball, a second traction ring assembly in contact with each ball, the carrier assembly having a first carrier member substantially non-rotatable, a second carrier member configured to rotate relative to the first carrier member, and an axle capture member fixedly coupled to the first carrier member. The axle capture member is configured to selectively couple to one end of each ball axle.