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公开(公告)号：US11680498B2
公开(公告)日：2023-06-20
申请号：US17612655
申请日：2020-05-20
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Tobias Riedl , Christian Karbacher
CPC classification number: F01L1/352 , F01L2001/3521 , F01L2013/103 , F01L2013/111 , F01L2201/00 , F01L2800/09 , F01L2800/14 , F01L2820/032 , F01L2820/041
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：US20190136723A1
公开(公告)日：2019-05-09
申请号：US16173124
申请日：2018-10-29
Applicant: DENSO CORPORATION
Inventor： Akira IWASAKI , Genki SUZUKI
CPC classification number: F01L1/352 , F01L1/024 , F01L1/348 , F01L2001/0537 , F01L2103/00 , F01L2103/01 , F01L2250/02 , F01L2250/04 , F01L2820/032
Abstract: A housing is rotatable synchronously with a crankshaft of an engine. A plurality of external teeth arrangements is respectively shaped into a ring form and is formed integrally with the housing in one piece and is configured to mesh with a plurality of chains, respectively, each of which is wound around the crankshaft or a sprocket that is rotatable. A cam plate is connected to a camshaft of the engine and is rotatable relative to the housing. A plurality of stoppers is formed integrally with the housing in one piece while the stoppers are configured to limit relative rotation between the housing and the cam plate within a predetermined range when the stoppers contact the cam plate. Each stopper is placed at a position, at which the stopper does not overlap with any of the external teeth arrangements in a view taken in an axial direction of the housing.
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公开(公告)号：US20190032722A1
公开(公告)日：2019-01-31
申请号：US16050571
申请日：2018-07-31
Applicant: BorgWarner Inc.
Inventor： Chad MCCLOY , Daniel BROWN , Shawn BLACKMUR
CPC classification number: F16D3/10 , F01L1/34403 , F01L1/352 , F01L2001/34486 , F01L2101/00 , F01L2103/00 , F01L2250/02 , F01L2250/04 , F01L2810/03 , F01L2820/032 , F02D13/0238
Abstract: A variable camshaft timing device adjusts phase between a camshaft and a crankshaft and includes a first ring gear configured to connect to the camshaft and rotate about a center axis, having a plurality of radially-inwardly facing gear teeth; a second ring gear axially spaced from the first ring gear, configured to receive rotational input from the crankshaft and rotate about the center axis, having a plurality of radially-inwardly facing gear teeth; a planetary gear assembly including one or more planet gears that are configured for rotation by an electric motor and engage the first ring gear and the second ring gear through the planet gear(s); and a cushioned stop configured to transmit energy between the planetary gear assembly and a planetary gear stop attached to a sprocket or a camshaft plate.
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公开(公告)号：US20180371964A1
公开(公告)日：2018-12-27
申请号：US16014293
申请日：2018-06-21
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Eiji Miyachi
CPC classification number: F01L1/352 , F01L1/047 , F01L2250/02 , F01L2250/04 , F01L2810/02 , F01L2820/032 , F16D3/04 , F16H1/32 , F16H35/008
Abstract: A valve opening and closing timing control apparatus includes a driving-side rotation member, a driven-side rotation member, a phase adjustment mechanism configured as a differential type reduction gear mechanism where an inner gear rotates about a rotation axis while revolving around an eccentric axis which is disposed parallel to the rotation axis in a state where a drive shaft fitted in the inner gear is driven to rotate about the rotation axis, a biasing member provided at an outer periphery of the drive shaft and applying a biasing force to mesh an external teeth portion of the inner gear with an internal teeth portion of the ring gear, and a restriction portion provided at the drive shaft to restrict a displacement of the inner gear in a direction where the inner gear is separated from the ring gear against the biasing force of the biasing member.
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公开(公告)号：US10060303B2
公开(公告)日：2018-08-28
申请号：US15333676
申请日：2016-10-25
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Eric Berndt
CPC classification number: F01L1/34409 , F01L1/047 , F01L1/344 , F01L1/46 , F01L2001/0475 , F01L2001/34459 , F01L2001/34463 , F01L2001/34473 , F01L2013/101 , F01L2250/02 , F01L2250/04 , F01L2250/06 , F01L2800/12 , F01L2820/031 , F01L2820/032 , F01L2820/033 , F01L2820/034
Abstract: A camshaft phaser comprising an advance one-way clutch and a retard one-way clutch. The camshaft phaser comprises an input component arranged to receive torque from an engine, an advance inner ring, a plurality of rollers circumferentially arranged around the advance inner ring, an advance outer ring radially disposed between the input component and the advance inner ring, and an actuation assembly arranged to be disposed within a camshaft, the actuation assembly comprises advance locking pin assemblies arranged in advance channels and an actuator rod. For an advanced mode, the actuator rod is arranged to radially displace advance locking pin assemblies to non-rotatably connect the camshaft and advance inner ring, the rollers ride up ramps on advance outer ring, which expands radially to engage the input component. The retard clutch is substantially similar, and arranged diametrically opposed, to the advance clutch.
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Patent Agency Ranking
公开(公告)号：US20180238244A1
公开(公告)日：2018-08-23
申请号：US15556267
申请日：2016-03-30
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Satoshi YABU , Masaaki KANEKO
CPC classification number: F02D13/0249 , F01L1/3442 , F01L1/352 , F01L1/356 , F01L2001/0537 , F01L2001/3443 , F01L2001/34483 , F01L2250/02 , F01L2800/00 , F01L2820/032 , F01L2820/041 , F01L2820/042 , F02D13/02 , F02D13/0261 , F02D2200/1002 , F02D2200/101 , Y02T10/18
Abstract: A control unit for an internal combustion engine is configured for suppressing knocking phenomenon with reduction of overlap, while maintaining an opening timing of an exhaust valve at the time of low-rotation, high-load state. A valve opening/closing timing control apparatus includes a phase adjustment mechanism configured to vary a relative rotational phase between a driving side rotary body rotatable in synchronism with a crankshaft of the internal combustion engine and a driven side rotary body rotatable together with an exhaust cam shaft. After an opening timing of the exhaust valve, an advancing operation is effected for displacing the relative rotational phase in the advancing direction relative to the opening timing.
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公开(公告)号：US20180087411A1
公开(公告)日：2018-03-29
申请号：US15278200
申请日：2016-09-28
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Steven BURKE , Andrew MLINARIC
CPC classification number: F01L1/352 , F01L1/047 , F01L2001/0476 , F01L2001/34453 , F01L2001/34469 , F01L2001/3521 , F01L2250/02 , F01L2250/04 , F01L2250/06 , F01L2800/01 , F01L2820/032
Abstract: An electric cam phasing system is provided. The electric cam phasing system includes an electric motor including a center shaft; a camshaft; a center fastener extending into a center of the camshaft and a gearbox including a sprocket and a drive unit. The drive unit includes an input shaft coupling connected to the center shaft. The drive unit is configured for coupling the camshaft to the sprocket in a manner such that relative phasing of the camshaft with respect to sprocket is adjustable via the electric motor driving the drive unit. The electric cam phasing system also includes a lock positioned axially between the center shaft and the camshaft, the lock being configured for selectively engaging the center fastener to lock the gearbox.
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公开(公告)号：US20180073656A1
公开(公告)日：2018-03-15
申请号：US15704354
申请日：2017-09-14
Applicant: AISIN SEIKI KABUSHIKI KAISHA
Inventor： Eiji Miyachi , Tomoharu Otake , Yoshiaki Iguchi , Shigemitsu Suzuki , Hiroki Mukaide
CPC classification number: F16K31/047 , F01L1/047 , F01L1/344 , F01L1/352 , F01L2103/00 , F01L2250/02 , F01L2250/04 , F01L2810/04 , F01L2820/032 , F16H1/32 , F16H35/008 , F16H2001/327
Abstract: A valve opening and closing timing control apparatus includes: a driving side rotator disposed rotatably about a rotation axis and configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed rotatably about the rotation axis and configured to be rotatable relative to the driving side rotator and to rotate integrally with a valve opening and closing camshaft of the internal combustion engine; and a phase adjustment mechanism configured to set a relative rotation phase between the driving side rotator and the driven side rotator by a driving force of an electric actuator. The phase adjustment mechanism includes: an internally toothed ring gear; an inner gear; and a drive shaft, and the valve opening and closing timing control apparatus further includes: a biasing member; and a displacement regulation portion.
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公开(公告)号：US20170362970A1
公开(公告)日：2017-12-21
申请号：US15628382
申请日：2017-06-20
Applicant: Mahle International GmbH
Inventor： Peer Niekamp , Edgar Salfeld
CPC classification number: F01L13/0063 , F01L1/0532 , F01L1/185 , F01L1/46 , F01L13/0036 , F01L2001/0473 , F01L2001/0478 , F01L2013/0052 , F01L2013/101 , F01L2105/00 , F01L2820/032
Abstract: A valve train may include a camshaft having first and second slide guides, first and second cams mounted axially adjacent in torque-proof manners on the camshaft, and a cam follower adjustable between a first position, in which the cam follower is drivingly connected with the first cam, and a second position, in which the cam follower is drivingly connected with the second cam. The valve train may also include an adjustment arrangement having adjustable mechanical first and second engagement elements for axially adjusting the cam follower between first and second positions. Each engagement element may be adjustable between basic positions, in which no contact exists with a respective one of the slide guides, and switching positions, in which the respective engagement element cooperates with the slide guide. Each engagement element may have a spring that prestresses it into the switching position. The valve train may further include an arresting device and an actuator for each engagement element, wherein the arresting device, when in a locked position, holds the associated engagement element in the basic position, and the actuator releases the arresting device
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公开(公告)号：US09810109B2
公开(公告)日：2017-11-07
申请号：US15511667
申请日：2015-09-10
Applicant: BorgWarner Inc.
Inventor： Christopher J. Pluta , Michael W. Marsh
CPC classification number: F01L1/352 , F01L2250/02 , F01L2250/04 , F01L2250/06 , F01L2820/032 , F16H1/28 , F16H35/008 , F16H57/082 , F16H2001/2872
Abstract: An engine variable camshaft timing phaser (10) includes a sprocket (12), three ring gears (26, 28, 30), multiple planet gears (24), and a sun gear (22). The sprocket (12) receives rotational drive input from an engine crankshaft. One or more of the three ring gear(s) (26, 28, 30) receives rotational drive input from the sprocket (12) and rotates with the sprocket (12), and the remaining ring gear(s) (26, 28, 30) transmit rotational drive output to an engine camshaft (62). All three of the ring gears (26, 28, 30) engage with the planet gears (24). And the sun gear (22) also engages with the planet gears (24). In operation, relative rotational speeds between the sprocket (12) and the sun gear (22) causes the engine camshaft (62) to advance or retard engine valve opening and closing.
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