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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：US11313258B2
公开(公告)日：2022-04-26
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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