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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：US08893675B2
公开(公告)日：2014-11-25
申请号：US13887160
申请日：2013-05-03
申请人： OTICS Corporation
发明人： Akira Sugiura
CPC分类号： F01L1/34 , F01L1/185 , F01L1/2405 , F01L13/0005 , F01L13/0036 , F01L2001/186 , F01L2105/00
摘要： The present invention provides a variable valve mechanism for an internal combustion engine which includes an input arm, an output arm, a switching pin, and a displacing device. The displacing device includes a pressing device that presses the switching pin from any one of the coupling position and the non-coupling position to the other one of them, a return spring, and a stopper mechanism. The return spring is provided outside of the input arm and the output arm so as to act on one end of the switching pin, which is exposed from the input arm and the output arm. The stopper mechanism includes a displacement restricting groove that is provided on an outer periphery of the switching pin, and a lock member that is engaged with the displacement restricting groove and contacts one end of the displacement restricting groove when the switching pin is stopped at the non-coupling position.
摘要翻译： 本发明提供一种用于内燃机的可变气门机构，其包括输入臂，输出臂，开关销和移位装置。 移位装置包括按压装置，其将切换销从联接位置和非联接位置中的任一个压向其中另一个，复位弹簧和止动机构。 复位弹簧设置在输入臂和输出臂的外侧，以便作用于从输入臂和输出臂露出的开关销的一端。 止动机构包括设置在开关销的外周上的位移限制槽，以及锁定构件，当切换销停止在非位移限制槽时，该位置限制槽与位移限制槽接合并接触位移限制槽的一端， - 耦合位置。
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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：US10260381B2
公开(公告)日：2019-04-16
申请号：US15655680
申请日：2017-07-20
申请人： OTICS CORPORATION
发明人： Akira Sugiura , Koki Yamaguchi
摘要： A variable valve mechanism includes a rocker arm including a first input arm, a second input arm, and an output arm, and a switch device that switches an operating state to a first state by coupling only the first input arm to the output arm, and switches the operating state to a second state by coupling only the second input arm to the output arm. The switch device includes two pins that are displaceably placed in the rocker arm and contact each other at their end faces, and a displacement device that switches the operating state to the first state by displacing a contact portion between the two pins to between the output arm and the second input arm, and switches the operating state to the second state by displacing the contact portion between the two pins to between the output arm and the first input arm.
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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：US10221728B2
公开(公告)日：2019-03-05
申请号：US15480857
申请日：2017-04-06
申请人： OTICS CORPORATION
发明人： Hiroyuki Suzuki , Akira Sugiura , Koki Yamaguchi
摘要： A variable valve mechanism includes an input arm that axially supports a roller pressed by a cam, via a roller pin, an output arm that drives a valve when swinging, a switch device that switches the variable valve mechanism between a coupled state where the both arms are coupled and an uncoupled state where the arms are uncoupled from each other, and a lost motion spring that biases the roller against the cam when in the uncoupled state. The lost motion spring includes an extended portion extending in an inter-arm clearance between the input arm and the output arm. An end of the roller pin projects from the input arm into the inter-arm clearance by such a length that the end is accommodated in the inter-arm clearance and that allows a spring retaining portion to be formed in the end. The spring retaining portion is formed in the end.
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公开(公告)号：US10167745B2
公开(公告)日：2019-01-01
申请号：US15419836
申请日：2017-01-30
申请人： OTICS CORPORATION
发明人： Hiroyuki Suzuki , Akira Sugiura
摘要： A variable valve mechanism of an internal combustion engine includes an outer arm, an inner arm, a switching device that switches between a coupled state and a non-coupled state, and a lost motion spring. The lost motion spring has an extending portion extending from the outside of the space to the inside of the space. The extending portion has a contact portion that is in contact with the inner arm in the space and being configured to swing in conjunction with swinging of the inner arm. A through-hole is formed in a vertically intermediate portion of the outer arm such that connecting portions are provided at vertically opposite sides of the through-hole, and a portion of the extending portion, a swinging amount of which is smaller than that of the contact portion, passes through the through-hole that allows the portion to swing therein.
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公开(公告)号：US20170268386A1
公开(公告)日：2017-09-21
申请号：US15419836
申请日：2017-01-30
申请人： OTICS CORPORATION
发明人： Hiroyuki Suzuki , Akira Sugiura
CPC分类号： F01L1/22 , F01L1/181 , F01L1/185 , F01L1/462 , F01L13/0005 , F01L13/0036 , F01L2001/186 , F01L2001/467 , F01L2105/00 , F01L2820/02
摘要： A variable valve mechanism of an internal combustion engine includes an outer arm, an inner arm, a switching device that switches between a coupled state and a non-coupled state, and a lost motion spring. The lost motion spring has an extending portion extending from the outside of the space to the inside of the space. The extending portion has a contact portion that is in contact with the inner arm in the space and being configured to swing in conjunction with swinging of the inner arm. A through-hole is formed in a vertically intermediate portion of the outer arm such that connecting portions are provided at vertically opposite sides of the through-hole, and a portion of the extending portion, a swinging amount of which is smaller than that of the contact portion, passes through the through-hole that allows the portion to swing therein.
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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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