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公开(公告)号：US20190107016A1
公开(公告)日：2019-04-11
申请号：US16212216
申请日：2018-12-06
Applicant: BorgWarner Inc.
Inventor： Chad McCloy
IPC: F01L1/352
Abstract: An electric phaser for dynamically adjusting a rotational relationship of a camshaft with respect to an engine crankshaft of an internal combustion engine includes an electric motor and a tapered roller drive. The tapered roller drive includes a sun, rollers, a carrier, at least one ring, and at least one load generator providing an axial load. The rollers are maintained in rolling engagement with the sun and the ring without the use of teeth. In some embodiments, the tapered roller drive is based on a fixed-sun design. In other embodiments, the tapered roller drive is based on a split ring design.
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公开(公告)号：US20190085734A1
公开(公告)日：2019-03-21
申请号：US15710097
申请日：2017-09-20
Applicant: BorgWarner Inc.
Inventor： Chad McCloy , Braman Wing
Abstract: A variable camshaft timing device that adjusts phase between a camshaft and a crankshaft includes a planetary gear assembly that changes an angular position of the camshaft relative to an angular position of the crankshaft; a sun gear configured to receive an output shaft of an electric motor that rotates at least a portion of the planetary gear assembly and controls phase adjustment between the camshaft and crankshaft by angularly displacing the camshaft with respect to the crankshaft; and a hydraulic lock (82) that releasably engages a portion of the variable camshaft timing device (10) in response to force applied by pressurized fluid thereby selectively preventing rotation of the camshaft relative to the crankshaft.
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公开(公告)号：US10190450B2
公开(公告)日：2019-01-29
申请号：US15378564
申请日：2016-12-14
Applicant: GM Global Technology Operations LLC
Inventor： Andrew G. Balding
Abstract: A camshaft drive system for an internal combustion engine, includes a camshaft including a plurality of cam lobes thereon. A planetary gear system including a first component drivingly connected to the camshaft. A motor is drivingly connected to a second component of the planetary gear system and a sprocket is driven by the internal combustion engine and drivingly connected to a third component of the planetary gear system. A controller controls operation of the motor for selectively driving the second component at a same speed as the third component for imparting rotation to the camshaft and for selectively preventing rotation of the second component of the planetary gear system for preventing rotation of the camshaft.
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公开(公告)号：US10151222B2
公开(公告)日：2018-12-11
申请号：US15278200
申请日：2016-09-28
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Steven Burke , Andrew Mlinaric
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：US10138944B2
公开(公告)日：2018-11-27
申请号：US15316197
申请日：2015-05-29
Applicant: BorgWarner Inc.
Inventor： Daniel Brown , Roger T. Simpson
Abstract: A coupling assembly (20, 120, 220) and method can include a first rotatable member (22, 122, 222) and a second rotatable member (26, 126, 226) defining a cylindrical hub portion having a plurality of springs (42, 142, 242) interposed between the cylindrical hub portion of the second rotatable member (26, 126, 226) and the first rotatable member (22, 122, 222) for transferring rotational torque between the first and second rotatable members. A plurality of load-bearing surfaces (32, 132, 232) associated with the first rotatable member (22, 122, 222) are engageable by the plurality of springs (42, 142, 242) to accommodate radial clearances (34, 36, 134, 136, 234) between the first rotatable member (22, 122, 222) and the cylindrical hub portion while providing rotational drive torque from the first rotatable member (22, 122, 222) to the second rotatable member (22, 122, 222) through the plurality of springs (42, 142, 242).
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Patent Agency Ranking
公开(公告)号：US20180328239A1
公开(公告)日：2018-11-15
申请号：US15534160
申请日：2015-11-27
Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.
Inventor： Ryo TADOKORO , Isao DOI , Hiroyuki NEMOTO , Seiichi SUE
CPC classification number: F01L1/352 , F01L1/34403 , F01L2250/02 , F01L2820/032 , F16C19/541 , H02K5/10
Abstract: A communicating hole, which communicates between a clearance space and the outside of a cover member, is formed in the cover member, and a seal cap is fitted to and retained in a distal-end opening of the communicating hole. The seal cap includes a cap main body having a ventilation through hole formed in an internal axial direction and an outer peripheral wall configured to engage with the communicating hole, a supporting portion fitted, from the outside, into a recessed groove formed in an outside end face of the cap main body, and a ventilation filter located on a bottom face of the recessed groove and retained and sandwiched between the cap main body and the supporting portion. Therefore, an internal pressure rise in the clearance space between the cover member and an electric motor can be effectively suppressed, and thus improved mountability and retainability can be obtained.
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公开(公告)号：US20180320564A1
公开(公告)日：2018-11-08
申请号：US15804816
申请日：2017-11-06
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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公开(公告)号：US10119431B2
公开(公告)日：2018-11-06
申请号：US15318411
申请日：2015-06-18
Applicant: BorgWarner Inc.
Inventor： Daniel Brown
Abstract: A system (42) including a phaser (28), a motor (38), and a controller (40) for controlling the phase between a camshaft (18) and a crankshaft (16) of an engine (10). The phaser (28) is attached to the camshaft (18), is in communication with the crankshaft (16), and is configured to adjust the phase of the camshaft (18). The motor (38) actuates the phaser (28) and is operatively attached to and in communication with the phaser (28) such that rotation of the crankshaft (16) back-drives the motor (38) to subsequently generate a signal. The controller (40) is in electrical communication with the motor (38), is responsive to the signal, and uses the signal to determine the rotational speed of the motor (38) to thereby commutate the motor (38) and subsequently drive the motor (38) so as to actuate the phaser (28) and control the phase of the camshaft (18).
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公开(公告)号：US20180283231A1
公开(公告)日：2018-10-04
申请号：US15765728
申请日：2016-08-10
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Ali Bayrakdar
CPC classification number: F01L1/3442 , F01L1/047 , F01L1/24 , F01L1/344 , F01L1/352 , F01L2001/0473 , F01L2001/2444 , F01L2001/34433
Abstract: Camshaft adjusting devices are disclosed. In one example, a camshaft adjusting device may include a camshaft adjuster and a camshaft. The camshaft may include a camshaft end which is configured both to receive a hydraulically actuatable camshaft adjuster and to receive an electromechanically actuatable camshaft adjuster. The camshaft end may have two different threads for receiving a bolt.
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公开(公告)号：US20180252305A1
公开(公告)日：2018-09-06
申请号：US15759352
申请日：2016-09-07
Applicant: Schaeffler Technologies AG & Co. KG
Inventor： Bastian Hain , Peter Zierer
CPC classification number: F16H49/001 , F01L1/352 , F01L2001/3521
Abstract: A gearing (1), in particular a strain wave gearing, including an elastic gear (2) having a flange (16), which flange is fastened to a housing component (7) of the gearing (1). A connecting assembly (8) for retaining the flange (16) on the housing component (7) includes a plurality of fastening points (14), wherein, outside of the fastening points (14), the connecting assembly (8) has axial play between the flange (16) and the housing component (7), with respect to the center axis (M) of the gear (2).
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