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公开(公告)号：US09879577B2
公开(公告)日：2018-01-30
申请号：US15079545
申请日：2016-03-24
发明人： Koki Yamaguchi , Naoki Hiramatsu , Takayuki Maezako , Masatoshi Sugiura , Shinichiro Kikuoka , Masaaki Tani , Motohiro Yuge
CPC分类号： F01L13/0063 , F01L1/053 , F01L1/185 , F01L1/2405 , F01L1/267 , F01L13/0005 , F01L2013/001 , F01L2013/105 , F01L2013/106 , F01L2105/00
摘要： A variable valve mechanism of an internal combustion engine includes a plurality of swing members and a variable device that displaces a control shaft to displace a plurality of slider gears of the swing members at a time, thereby changing valve lifts of the plurality of swing members at a time by meshing of helical splines. The swing members include a first swing member for a predetermined cylinder of a plurality of cylinders and a second swing member for a cylinder other than the predetermined cylinder, and a helix angle of the helical splines varies between the first and the second swing members. The variable device displaces the control shaft to a predetermined normal position to perform a normal operation, and displaces the control shaft to a predetermined cylinder cutoff position to perform a cylinder cutoff operation in which the second swing member does not drive a valve.
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公开(公告)号：US09624795B2
公开(公告)日：2017-04-18
申请号：US14808910
申请日：2015-07-24
申请人： OTICS CORPORATION
发明人： Akira Sugiura , Takayuki Maezako
CPC分类号： F01L1/34 , F01L1/04 , F01L1/08 , F01L1/18 , F01L1/185 , F01L1/2405 , F01L13/0036 , F01L13/08 , F01L2001/186 , F01L2105/00 , F01L2800/01 , F01L2800/03
摘要： The present invention provides a variable valve mechanism of an internal combustion engine, which includes a rocker arm that is driven by a cam so as to swing to drive a valve, a switching pin that is attached to the rocker arm so as to be shifted between a first position and a second position, a shift device that shifts the switching pin from the first position to the second position, and a return spring that returns the switching pin. In the variable valve mechanism, a drive state of the valve is switched by shifting the switching pin, the rocker arm is formed to have such a dimension that one end of the switching pin is exposed while projecting outward from the rocker arm, and the return spring is externally fitted to the one end of the switching pin so as to be exposed outside the rocker arm.
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公开(公告)号：US08960144B2
公开(公告)日：2015-02-24
申请号：US14032116
申请日：2013-09-19
申请人： Otics Corporation
CPC分类号： F01L1/34 , F01L1/185 , F01L13/0005 , F01L2001/186 , F01L2001/467 , F01L2105/00 , Y10T74/20882 , Y10T74/2107
摘要： The present invention provides a variable valve mechanism of an internal combustion engine, which includes a main arm having at a rear end thereof a supported portion that is continuously supported swingably by a support member without floating upward, a sub arm which has a tip end to which a roller contacting a cam is rotatably attached, in which a center of the roller is located rearward of the pressing portion and forward of a swing center of the supported portion, which has a rear end that is swingably supported with respect to the main arm by a support pin, and in which a center of the support pin is located rearward of the center of the roller and forward of the swing center of the supported portion, and a switch pin that is inserted in a central portion of the roller.
摘要翻译： 本发明提供一种内燃机的可变气门机构，其包括主臂，其后端具有由支撑构件可摆动地不向上浮动地支撑的支撑部，具有顶端至 与凸轮接触的辊可旋转地附接，其中辊的中心位于按压部分的后方并且被支撑部分的摆动中心的前方，该后端具有相对于主臂可摆动地支撑的后端 通过支撑销，并且其中支撑销的中心位于所述辊的中心的后方并且被支撑部分的摆动中心的前方，以及插入在所述辊的中心部分中的开关销。
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公开(公告)号：US10280817B2
公开(公告)日：2019-05-07
申请号：US15835225
申请日：2017-12-07
申请人： OTICS CORPORATION
发明人： Takayuki Maezako , Akira Sugiura
摘要： In a variable valve mechanism, during switching from a disconnected state to a connected state, the switch arm being displaced in a return direction comes in sliding contact with a pin end surface of the switch pin, and presses the pin end surface toward the disconnected position to push back the switch pin. At a sliding contact start time, the switch arm sliding contacts a portion of the pin end surface on a return direction side with respect to an idle-swing-side edge. At least during a period from a 10% position time to a sliding contact end time, a position of a pressed center relative to the pin end surface shifts toward the return direction side without stopping as the switch arm is displaced toward the return direction relative to a main arm, so that the sliding contact ends without stopping of the pressed center at a return-side edge.
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公开(公告)号：US10240489B2
公开(公告)日：2019-03-26
申请号：US15363866
申请日：2016-11-29
申请人： OTICS CORPORATION
发明人： Takayuki Maezako , Akira Sugiura
摘要： A variable valve mechanism of an internal combustion engine includes a camshaft having a general shaft part and a cam part arranged next to each other in an axial direction, an input arm that swings when pressed by the cam part, an output arm that is swingably mounted and that drives a valve when swinging, and a switch device that switches the variable valve mechanism between a coupled state where the input arm and the output arm are coupled to swing together and an uncoupled state. The output arm has a great height so that clearance between the output arm and the general shaft part is 3 mm or less when the variable valve mechanism is in the coupled state and the valve is closed. If the output arm bounces in the uncoupled state, the output arm comes into contact with the general shaft part through the clearance.
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公开(公告)号：US09181826B2
公开(公告)日：2015-11-10
申请号：US14066562
申请日：2013-10-29
申请人： OTICS CORPORATION
CPC分类号： F01L13/0031 , F01L13/0021 , F01L13/0036
摘要： The present invention provides a variable valve mechanism of an internal combustion engine which includes a main arm that is capable of swinging and that drives a valve when swinging, a first sub arm that is provided on one side in the lateral direction of the main arm and that swings when driven by a first cam, a second sub arm that is provided on the other side in the lateral direction of the main arm and that swings when driven by a second cam, and a switch device that performs switching between a first coupled state where only the first sub arm of the first and second sub arms is coupled to the main arm, and a second coupled state where only the second sub arm of the first and second sub arms is coupled to the main arm.
摘要翻译： 本发明提供一种内燃机的可变气门机构，其包括能够摆动并在摆动时驱动阀的主臂，设置在主臂的横向方向上的一侧的第一副臂和 当由第一凸轮驱动时摆动，第二副臂设置在主臂的横向方向上的另一侧，并且当由第二凸轮驱动时摆动;以及开关装置，其在第一联接状态 其中只有第一和第二子臂的第一子臂联接到主臂，以及第二联接状态，其中只有第一和第二子臂的第二子臂联接到主臂。
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公开(公告)号：US20140083380A1
公开(公告)日：2014-03-27
申请号：US14032116
申请日：2013-09-19
申请人： OTICS CORPORATION
IPC分类号： F01L1/34
CPC分类号： F01L1/34 , F01L1/185 , F01L13/0005 , F01L2001/186 , F01L2001/467 , F01L2105/00 , Y10T74/20882 , Y10T74/2107
摘要： The present invention provides a variable valve mechanism of an internal combustion engine, which includes a main arm having at a rear end thereof a supported portion that is continuously supported swingably by a support member without floating upward, a sub arm which has a tip end to which a roller contacting a cam is rotatably attached, in which a center of the roller is located rearward of the pressing portion and forward of a swing center of the supported portion, which has a rear end that is swingably supported with respect to the main arm by a support pin, and in which a center of the support pin is located rearward of the center of the roller and forward of the swing center of the supported portion, and a switch pin that is inserted in a central portion of the roller.
摘要翻译： 本发明提供一种内燃机的可变气门机构，其包括主臂，其后端具有由支撑构件可摆动地不向上浮动地支撑的支撑部，具有顶端至 与凸轮接触的辊可旋转地附接，其中辊的中心位于按压部分的后方并且被支撑部分的摆动中心的前方，该后端具有相对于主臂可摆动地支撑的后端 通过支撑销，并且其中支撑销的中心位于所述辊的中心的后方并且被支撑部分的摆动中心的前方，以及插入在所述辊的中心部分中的开关销。
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