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公开(公告)号：US11761525B2
公开(公告)日：2023-09-19
申请号：US17428269
申请日：2019-09-10
Applicant: MIKUNI CORPORATION
Inventor： Yuuhei Sanekata
CPC classification number: F16H49/001 , F01L1/022 , F01L1/344 , F01L1/352 , F01L1/356 , F16H57/0424 , F16H57/0428 , F01L2810/02 , F16H57/043 , F16H2049/003
Abstract: This strain wave gear unit includes: a bottomed cylindrical first internal gear having internal teeth formed on a cylindrical part and a teeth-non-formed part protruding farther inward than the tooth bottom of the internal teeth in a corner area where a bottom wall part is integrally connected to the cylindrical part; a flexible cylindrical external gear having external teeth meshing with the internal teeth of the first internal gear, an opposed part opposed to the teeth-non-formed part with a gap therebetween, and an end part opposed to the bottom wall part to make contact therewith; a second internal gear arranged adjacent to the first internal gear and having internal teeth meshing with the external teeth; and a rotation member that causes the external gear to deform in an oval shape and causes the meshing position to move while partially meshing with the first internal gear and the second internal gear.
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公开(公告)号：US11725547B2
公开(公告)日：2023-08-15
申请号：US17701202
申请日：2022-03-22
Applicant: AISIN CORPORATION
Inventor： Shuhei Sugiyama
CPC classification number: F01L1/352 , F01L2013/103 , F01L2013/111 , F01L2201/00 , F01L2800/03 , F01L2800/14 , F01L2820/032 , F01L2820/041 , F02D2013/0292
Abstract: A valve opening and closing timing control device includes a driving-side rotating body, a driven-side rotating body, a stopper configured to determine a mechanical limit of a displacement region of a relative rotation phase, a phase control mechanism configured to change the relative rotation phase, and a control unit configured to control the electric motor so as to displace the actual phase detected by a phase sensor. A limit phase at which the stopper reaches an abutting state is set in advance when rotation of the electric motor is stopped while the internal combustion engine operates. Upon executing stop control of stopping the internal combustion engine, except when the actual phase is already the limit phase, the control unit executes braking control of limiting the rotation of the electric motor by controlling an electric current to be supplied to the electric motor.
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公开(公告)号：US11459916B2
公开(公告)日：2022-10-04
申请号：US17473503
申请日：2021-09-13
Applicant: DENSO CORPORATION
Inventor： Makoto Otsubo , Kenichi Tomomatsu , Shuhei Yamamoto , Hiroki Takahashi , Soichi Kinouchi
Abstract: A drive-side rotor is rotated synchronously with a crankshaft. A driven-side rotor is rotated integrally with a camshaft. An internal gear section is formed at the driven-side rotor. An Oldham coupling includes: a driven Oldham flange that is formed at the drive-side rotor; a drive Oldham flange that is formed at the planetary rotor; and an Oldham intermediate that is configured to synchronize rotation of the driven Oldham flange and rotation of the drive Oldham flange while permitting eccentricity between the driven Oldham flange and the drive Oldham flange. There is satisfied a relationship of θ2
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公开(公告)号：US20220220870A1
公开(公告)日：2022-07-14
申请号：US17612655
申请日：2020-05-20
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Tobias Riedl , Christian Karbacher
Abstract: An electromechanical camshaft phaser (3) comprises a setting gear (4) and an electric motor (5), which is controlled by means of an electric-motor control unit (6). Data concerning the operation of the electric motor (5) including position changes of its motor shaft are transferred via a data bus (8) from the electric-motor control unit (6) to an engine control unit (7) of the internal combustion engine (1) comprising the camshaft phaser (3). In addition, recurring time signals are transferred from the electric-motor control unit (6) to the engine control unit (7) via a separate line (9), by which harder real-time requirements are met than by the data bus (8). The time signals are used to generate a time difference signal in the engine control unit (7) by comparison with the data received by the engine control unit (7), which time difference signal is fed back to the electric-motor control unit (6) via the data bus (8) and is used there to synchronize the electric-motor control unit (6) with the engine control unit (7).
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公开(公告)号：US20220154812A1
公开(公告)日：2022-05-19
申请号：US17590922
申请日：2022-02-02
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Richard Baier
Abstract: A flexible transmission element is disclosed which can be used, in particular in a harmonic drive and which includes a sleeve-shaped, outer toothed section and a flange connected to this section, the outer toothing of the sleeve-shaped section is sheet metal toothing formed in a die.
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Patent Agency Ranking
公开(公告)号：US11280228B2
公开(公告)日：2022-03-22
申请号：US16922180
申请日：2020-07-07
Applicant: BorgWarner, Inc.
Inventor： Chad McCloy
Abstract: A variable camshaft timing (VCT) assembly includes an independent VCT device that can couple with a first camshaft and change an angular position of the first camshaft relative to the angular position of a crankshaft. The independent VCT device has a stator and an output fixedly coupled with the first camshaft. The VCT assembly also includes a dependent VCT device that angularly adjusts a second camshaft in response to angular adjustment of the first camshaft. The dependent VCT device has a camshaft link coupled with the output of the independent VCT device; the camshaft link has a slot positioned radially outwardly from an axis of camshaft rotation. The independent VCT device also includes a planetary gear link having a geared surface configured to engage a geared surface coupled to the second camshaft, a planetary gear pin received by the slot of the camshaft link, and a planetary gear pivot; angular movement of the output relative to the stator moves the planetary gear pin relative to the slot and the planetary gear link about the pivot thereby transmitting angular motion of the first camshaft to the second camshaft through the planetary gear link.
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公开(公告)号：US11274577B2
公开(公告)日：2022-03-15
申请号：US16676973
申请日：2019-11-07
Applicant: BorgWarner, Inc.
Inventor： Daniel Brown
Abstract: A variable camshaft timing (VCT) assembly for controlling the angular position of concentric camshafts includes an independent VCT device that is configured to couple with a first concentric camshaft and change an angular position of the first concentric camshaft relative to an angular position of a crankshaft; and one or more dependent VCT devices mechanically linking an output of the independent VCT device with a second concentric camshaft, wherein the dependent VCT device(s) change(s) an angular position of the second concentric camshaft relative to the angular position of the first concentric camshaft based on angular movement of the output of the independent VCT device.
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公开(公告)号：US20220065340A1
公开(公告)日：2022-03-03
申请号：US17414307
申请日：2019-10-14
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Resat Aras , Richard Baier , Harald Hofmann , Rainer Ottersbach
Abstract: A harmonic drive, more particularly in an electromechanical camshaft phaser, comprises a drive element (2), a flexible transmission element (26) connected to the drive element (2) and having external teeth (29), and an output element (4) that is designed as a ring gear and has internal teeth (30) that partially mesh with the external teeth (29). The flexible transmission element (26) is pot-shaped, and is coupled in a torque-transmitting manner to the drive element (2) radially inside the outer teeth (29).
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公开(公告)号：US11242776B2
公开(公告)日：2022-02-08
申请号：US17205588
申请日：2021-03-18
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Takashi Iwaya , Masahiro Okado , Toi Suzuki , Toshiki Miyake , Takano Nakai , Kenichiro Suzuki , Yoshiyuki Kamoyama , Toru Hirota
Abstract: A valve open-close timing control device includes a driving rotator, a driven rotator, a phase adjusting mechanism, a sensor unit, a storage configured to store the plurality of divided regions consecutively provided, as a plurality of divided length information pieces corresponding to divided lengths of the divided regions, and an actual phase acquisition unit configured to start acquisition of the crank angle signal and the cam angle signal along with start of actuation control of actuating the internal combustion engine, specify one of the divided regions by referring to the divided length information pieces stored in the storage in accordance with the crank angle signal at timing set in accordance with the cam angle signal, and acquire the relative rotation phase as an actual phase in accordance with the crank angle signal corresponding to the boundary of the divided region thus specified and the reference crank angle signal.
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公开(公告)号：US20220010700A1
公开(公告)日：2022-01-13
申请号：US16922180
申请日：2020-07-07
Applicant: BorgWarner, Inc.
Inventor： Chad McCloy
Abstract: A variable camshaft timing (VCT) assembly includes an independent VCT device that can couple with a first camshaft and change an angular position of the first camshaft relative to the angular position of a crankshaft. The independent VCT device has a stator and an output fixedly coupled with the first camshaft. The VCT assembly also includes a dependent VCT device that angularly adjusts a second camshaft in response to angular adjustment of the first camshaft. The dependent VCT device has a camshaft link coupled with the output of the independent VCT device; the camshaft link has a slot positioned radially outwardly from an axis of camshaft rotation. The independent VCT device also includes a planetary gear link having a geared surface configured to engage a geared surface coupled to the second camshaft, a planetary gear pin received by the slot of the camshaft link, and a planetary gear pivot; angular movement of the output relative to the stator moves the planetary gear pin relative to the slot and the planetary gear link about the pivot thereby transmitting angular motion of the first camshaft to the second camshaft through the planetary gear link.
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