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公开(公告)号：US11306627B2
公开(公告)日：2022-04-19
申请号：US17113009
申请日：2020-12-05
发明人： Hyeon Woo Kim , Kyoung Pyo Ha , Back Sik Kim , Jong Gu Kim
摘要： A continuously variable valve duration apparatus may include a camshaft, a cam unit on which a cam is formed, wherein the camshaft is inserted into the cam unit, first and second guide brackets into which the camshaft is inserted, a wheel housing movably mounted to the first guide bracket and the second guide bracket, respectively, an internal wheel rotatably provided on each wheel housing and transmitting rotation of the camshaft to the cam unit, a worm wheel mounted on the first guide bracket and the second guide bracket, respectively to engage the wheel housing, a control shaft which is rotatably mounted on the first guide bracket and the second guide bracket, and engages with the each worm wheel to move the position of the wheel housing according to its rotation, and a connecting member that connects the first guide bracket and the second guide bracket.
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公开(公告)号：US10655511B2
公开(公告)日：2020-05-19
申请号：US16172595
申请日：2018-10-26
发明人： You Sang Son , Ingee Suh , Kiyoung Kwon , In Sang Ryu , Kyoung Pyo Ha , Dongheon Park , Wootae Kim , Back Sik Kim , Seung Jae Lee
摘要： A continuous variable valve duration apparatus is provided. The apparatus includes a camshaft and a cam unit on which a cam is formed. The camshaft is inserted into the cam unit. An inner wheel transmits rotation of the camshaft to the cam unit. The inner wheel is rotatably inserted in a wheel housing a housing hinge aperture parallel to the camshaft is formed on the wheel housing. A slider hinge aperture and a slider control aperture parallel to the camshaft are formed through a slider. A hinge shaft is inserted into the housing hinge aperture and the slider hinge aperture. An eccentric cam is formed on a control shaft and is inserted into the slider control aperture. A controller selectively rotates the control shaft to move the wheel housing perpendicular to the camshaft via the slider.
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公开(公告)号：US20190178115A1
公开(公告)日：2019-06-13
申请号：US16172595
申请日：2018-10-26
发明人： You Sang Son , Ingee Suh , Kiyoung Kwon , In Sang Ryu , Kyoung Pyo Ha , Dongheon Park , Wootae Kim , Back Sik Kim , Seung Jae Lee
摘要： A continuous variable valve duration apparatus is provided. The apparatus includes a camshaft and a cam unit on which a cam is formed. The camshaft is inserted into the cam unit. An inner wheel transmits rotation of the camshaft to the cam unit. The inner wheel is rotatably inserted in a wheel housing a housing hinge aperture parallel to the camshaft is formed on the wheel housing. A slider hinge aperture and a slider control aperture parallel to the camshaft are formed through a slider. A hinge shaft is inserted into the housing hinge aperture and the slider hinge aperture. An eccentric cam is formed on a control shaft and is inserted into the slider control aperture. A controller selectively rotates the control shaft to move the wheel housing perpendicular to the camshaft via the slider.
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公开(公告)号：US20210062691A1
公开(公告)日：2021-03-04
申请号：US16909338
申请日：2020-06-23
发明人： You Sang Son , In Sang Ryu , Kyoung-Pyo Ha , Dongheon Park , Back Sik Kim , Seung Jae Lee
摘要： A continuous variable valve duration apparatus includes a cam unit, a cam formed on the cam unit, a camshaft inserted into the cam, a guide bracket, a guide shaft mounted on the guide bracket and disposed perpendicular to the camshaft, wherein a guide screw thread is formed on the guide shaft, a wheel housing disposed within the guide bracket, an inner wheel rotatably inserted into the wheel housing and movable perpendicular to the camshaft, a worm wheel disposed within the wheel housing, wherein an inner screw thread configured to engage with the guide screw thread is formed inside the worm wheel and an outer screw thread is formed on the worm wheel, a control shaft, a control worm formed on the control shaft, and a wheel elastic portion mounted to the wheel housing.
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公开(公告)号：US10563551B2
公开(公告)日：2020-02-18
申请号：US15806534
申请日：2017-11-08
发明人： You Sang Son , Ingee Suh , Kiyoung Kwon , In Sang Ryu , Kyoung Pyo Ha , Dongheon Park , Wootae Kim , Back Sik Kim , Seung Jae Lee
摘要： A continuous variable valve duration apparatus may include a camshaft, a cam unit on which a cam is formed, of which the camshaft is inserted thereto and of which a relative phase angle with respect to the camshaft is variable, an inner bracket transmitting rotation of the camshaft to the cam unit, a wheel housing in which the inner bracket is rotatably inserted, on which a guide groove parallel to the camshaft is formed, and on which a guide hole vertical to the camshaft is formed, a guide portion including a guide shaft inserted into the guide hole for guiding movement of the wheel housing and a control portion including a control shaft disposed parallel to the camshaft and inserted into the guide groove, and the control portion selectively rotating the control shaft for the relative position of the wheel housing with respect to the camshaft to be changed.
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公开(公告)号：US10550738B2
公开(公告)日：2020-02-04
申请号：US16169578
申请日：2018-10-24
发明人： You Sang Son , Ingee Suh , Kiyoung Kwon , In Sang Ryu , Kyoung Pyo Ha , Dongheon Park , Wootae Kim , Back Sik Kim , Seung Jae Lee
摘要： A continuously variable valve duration apparatus may include: a camshaft; a cam unit on which a cam is formed, and the camshaft inserted to the cam; an inner wheel for transmitting rotation of the camshaft to the cam unit; a wheel housing into which the inner wheel is rotatably inserted and movable perpendicular to the camshaft; a guide shaft on which a guide screw thread is formed and disposed perpendicular to the camshaft; a worm wheel formed with an inner screw thread for engaging with the guide screw thread, and the worm wheel disposed within the wheel housing; and a control shaft on which a control worm for engaging with the worm wheel is formed.
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公开(公告)号：US11939890B2
公开(公告)日：2024-03-26
申请号：US17991884
申请日：2022-11-22
发明人： Hyeon Woo Kim , Back Sik Kim , Jinyoung Jung
CPC分类号： F01L1/047 , F01L1/053 , F01L1/344 , F01L1/3442 , F01L13/00 , F02D13/0207 , F02D41/22 , F01L2001/0473 , F01L2001/0476 , F01L2013/103 , F01L2013/111 , F01L2305/00 , F01L2820/032
摘要： A continuous variable valve duration apparatus includes: a camshaft, a front cam unit and a rear cam unit of which the phase relative to the camshaft can be varied, a front inner wheel and a rear inner wheel, a front guide bracket and a rear guide bracket, a front wheel housing and a rear wheel housing, a front control shaft, a rear control shaft, a phase controller selectively changing the relative phase of the front control shaft and the rear control shaft, a main driving unit for driving the rear control shaft, vibration sensors that measure the vibration of each cylinder corresponding to the front cam unit and the rear cam unit and output a corresponding signal, and a controller for controlling the operation of the main driving unit and the phase controller according to the output signals of the respective vibration sensors.
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18.发明授权公开(公告)号：US10024244B2
公开(公告)日：2018-07-17
申请号：US14955445
申请日：2015-12-01
发明人： In Sang Ryu , Ingee Suh , Kyoung Pyo Ha , Back Sik Kim , Kiyoung Kwon
摘要： A method for controlling valve timing of continuous variable valve duration engine may include continuous variable valve duration (CVVD) device and continuous variable valve timing (CVVT) device including determining target intake valve open (IVO) timing, target intake valve close (IVC) timing, target exhaust valve open (EVO) timing and target exhaust valve close (EVC) timing; determining target intake CVVD, target exhaust CVVD, target intake CVVT and target exhaust CVVT to satisfy the target IVO, IVC, EVO, and EVC timings; performing feedback control of the CVVD by learning minimum value of the CVVD and maximum value of the CVVD; performing feedback control of the CVVT based on profile information of the valve; and determining real IVO timing, real IVC timing, real EVO timing, and real EVC timing based on the feedback control of the CVVD and the feedback control of the CVVT.
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公开(公告)号：US10006377B2
公开(公告)日：2018-06-26
申请号：US15278818
申请日：2016-09-28
发明人： You Sang Son , Kyoung Pyo Ha , Back Sik Kim
CPC分类号： F02D13/0207 , F01L1/047 , F01L1/053 , F01L1/356 , F01L13/0015 , F01L13/0026 , F01L13/0036 , F01L2001/0473 , F01L2001/0475 , F01L2001/0476 , F01L2001/0537 , F01L2013/103 , F01L2740/00 , F02D2041/001 , Y02T10/18
摘要： A continuous variable valve duration apparatus may include: a camshaft; first and second cam portions on which a cam is formed respectively, to which the camshaft is inserted and of which relative phase angles with respect to the camshaft are variable; first and second inner brackets transmitting rotation of the camshaft to the first and second cam portions respectively; a slider housing unit in which the first and second inner brackets are rotatably inserted and of which a relative positions with respect to the camshaft is variable; a control shaft parallel to the camshaft; a control rod eccentrically formed on the control shaft; a lifter on which a lifter hole and a rotation hole are formed; and a control portion selectively rotating the control shaft so as to controlling a position of the slider housing unit.
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公开(公告)号：US09988948B2
公开(公告)日：2018-06-05
申请号：US15275556
申请日：2016-09-26
发明人： You Sang Son , Kyoung Pyo Ha , Back Sik Kim
CPC分类号： F01L1/34 , F01L1/047 , F01L1/053 , F01L1/356 , F01L9/00 , F01L13/0015 , F01L2001/0475 , F01L2001/0476 , F01L2001/0537 , F01L2013/103 , F01L2810/02 , F16H25/10 , F16H25/20 , F16H25/2015 , F16H2025/2084 , F16H2025/2087 , F16H2025/209
摘要： A continuous variable valve duration apparatus may include: a camshaft; first and second cam portions on which a cam is formed respectively, the camshaft inserted to the first and second cam portions of which relative phase angles with respect to the camshaft are variable; first and second inner brackets transmitting rotation of the camshaft to the first and second cam portions respectively; a cam lifter in which the first and second inner brackets are rotatably inserted, and a cam lifter guide slantly formed on the cam lifter; a cam cap rotatably supporting the first and the second cam portions, and the cam lifter slidably mounted to the cam cap; a control portion including a screw shaft parallel to the camshaft; and an adapter engaged with the screw shaft, on which an adapter guide slidably engaged with the cam lifter guide and moving a relative position of the cam lifter.
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