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公开(公告)号：US4727830A
公开(公告)日：1988-03-01
申请号：US891753
申请日：1986-07-31
申请人： Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh , Kazuo Inoue
发明人： Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh , Kazuo Inoue
CPC分类号： F01L1/26 , F01L1/267 , F02F1/4214 , F02F2001/247
摘要： A valve operating mechanism includes a camshaft rotatable in synchronism with rotation of an internal combustion engine and having a plurality of cams of different cam profiles. First, second, and third rocker arms are held in sliding contact with the cams, respectively, for operating the valves according to the cam profiles of the cams. The rocker arms are selectively interconnected and disconnected by first and second selective couplings to operate the valves at different valve timings in low, medium, and high speed ranges of the internal combustion engine.
摘要翻译： 阀操作机构包括与内燃机的旋转同步旋转并具有不同凸轮轮廓的多个凸轮的凸轮轴。 第一，第二和第三摇臂分别保持与凸轮滑动接触，用于根据凸轮的凸轮轮廓来操作阀。 摇臂通过第一和第二选择性联接器选择性地互连和断开，以在内燃机的低，中，高速范围内的不同阀定时操作阀。
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公开(公告)号：USRE33411E
公开(公告)日：1990-10-30
申请号：US386772
申请日：1989-07-31
申请人： Kazuo Inoue , Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh
发明人： Kazuo Inoue , Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh
摘要： A valve operating mechanism for operating a plurality of valves of a particular cylinder of an internal combustion engine includes a camshaft rotatable in synchronism with rotation of the internal combustion engine and having at least one cam. At least one of a plurality of cam followers slidably engages the cam for selectively operating the valves according to a cam profile of the cam. The cam followers are selectively interconnected and disconnected to operate the valves in different speed ranges of the internal combustion engine, the speed ranges including a range in which all of the valves remain inoperative. The camshaft has one or two annular raised portions in addition to the cam, and the cam followers include one or two cam followers which slidably engage the raised portion or portions. The valves remain inoperative by the annular portion or portions and are operated in a high-speed range by the cam, or selectively in low- and high-speed ranges by low- and high-speed ranges.
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公开(公告)号：US4790274A
公开(公告)日：1988-12-13
申请号：US8741
申请日：1987-01-30
申请人： Kazuo Inoue , Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh
发明人： Kazuo Inoue , Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh
摘要： A valve operating mechanism for operating a plurality of valves of a particular cylinder of an internal combustion engine includes a camshaft rotatable in synchronism with rotation of the internal combustion engine and having at least one cam. At least one of a plurality of cam followers slidably engages the cam for selectively operating the valves according to a cam profile of the cam. The cam followers are selectively interconnected and disconnected to operate the valves in different speed ranges of the internal combustion engine, the speed ranges including a range in which all of the valves remain inoperative. The camshaft has one or two annular raised portions in addition to the cam, and the cam followers include one or two cam followers which slidably engage the raised portion or portions. The valves remain inoperative by the annular portion or portions and are operated in a high-speed range by the cam, or selectively in low- and high-speed ranges by low- and high-speed ranges.
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公开(公告)号：US4788946A
公开(公告)日：1988-12-06
申请号：US8740
申请日：1987-01-30
申请人： Kazuo Inoue , Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh
发明人： Kazuo Inoue , Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh
CPC分类号： F01L1/267
摘要： A valve operating mechanism for operating a plurality of valves of an internal combustion engine includes a camshaft rotatable in synchronism with rotation of the internal combustion engine and having an array of three cams including a high-speed cam positioned at one end of the array. Three cam followers are held in sliding contact with the cams, respectively, for operating the valves according to cam profiles of the cams. The cam followers are selectively interconnected and disconnected to operate the valves at different valve timings in different speed ranges of the internal combustion engine. The speed ranges include a high-speed range in which all of the valves are controlled by the cam profile of the high-speed cam. The three cams may include low- and medium-speed cams, or two identical or different low-speed cams, in addition to the high-speed cam. These cams may be differently arranged in the array, and the cam followers include those which slidably engage one or two of the cams for operating the valves. The valves are operated selectively in low- and high-speed ranges, or in low-, medium-, and high-speed ranges, with different combinations of the cams.
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公开(公告)号：US4727831A
公开(公告)日：1988-03-01
申请号：US891754
申请日：1986-07-31
申请人： Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh , Kazuo Inoue
发明人： Kenichi Nagahiro , Yoshio Ajiki , Masaaki Katoh , Kazuo Inoue
CPC分类号： F01L1/26 , F01L1/267 , F02F1/4214 , F02F2001/247
摘要： A valve operating mechanism for operating a pair of valves of an internal combustion engine, includes a camshaft rotatable in synchronism with rotation of the internal combustion engine and having a first low-speed cam, a second low-speed cam, and a high-speed cam which have different cam profiles, respectively, the first and second low-speed cams being disposed one on each side of the high-speed cam, a rocker shaft, and first, second, and third rocker arms rotatably mounted on the rocker shaft and held in sliding contact with the first low-speed cam, the second low-speed cam, and the high-speed cam, respectively, for operating the valves according to the cam profiles of the cams. A selective coupling is operatively disposed in and between the first, second, and third rocker arms for selectively interconnecting the first, second, and third rocker arms to allow angular movement thereof in unison and disconnecting the first, second, and third rocker arms to allow separate angular movement thereof.
摘要翻译： 一种用于操作内燃机的一对阀的气门操作机构，包括与内燃机的转动同步旋转的凸轮轴，具有第一低速凸轮，第二低速凸轮和高速凸轮 凸轮分别具有不同的凸轮轮廓，第一和第二低速凸轮分别设置在高速凸轮的每一侧，摇臂轴和可旋转地安装在摇杆轴上的第一，第二和第三摇臂， 保持与第一低速凸轮，第二低速凸轮和高速凸轮滑动接触，用于根据凸轮的凸轮轮廓来操作阀。 选择性联接可操作地设置在第一，第二和第三摇臂之间并且在第一，第二和第三摇臂之间，用于选择性地互连第一，第二和第三摇臂，以允许其一致地进行角运动并断开第一，第二和第三摇臂以允许 单独的角运动。
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