公开(公告)号：US20160281546A1

公开(公告)日：2016-09-29

申请号：US15009444

申请日：2016-01-28

Applicant: OTICS CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Naoki HIRAMATSU ,  Koki YAMAGUCHI ,  Masahide SAKURAI ,  Motohiro YUGE ,  Masaaki TANI

IPC: F01L1/12 ,  F16K31/524

CPC classification number: F01L1/12 ,  F01L1/185 ,  F01L13/00 ,  F01L13/0015 ,  F01L13/0021 ,  F01L2001/186 ,  F01L2105/00 ,  F16K31/524

Abstract: The present invention provides a variable valve mechanism of an internal combustion engine, which includes an input member, an output member, a slider and a variable device. The output member has internal space formed therein and has a first cutout and a second cutout which are formed at two positions separated from each other in the swing direction so as to extend from an outer periphery of the output member to the internal space, and the input member is mounted in the internal space so as to extend through both inner sides of the first and second cutouts, and is brought into contact with inner side surfaces of the cutouts from both sides in the thrust direction, whereby relative displacement of the input member together with the slider in the thrust direction with respect to the output member is restricted at two positions by the first and second cutouts.

Abstract translation: 本发明提供一种内燃机的可变气门机构，其包括输入构件，输出构件，滑块和可变装置。 输出构件具有形成在其中的内部空间，并且具有第一切口和第二切口，该第一切口和第二切口形成在从摆动方向彼此分离的两个位置处，以便从输出构件的外周延伸到内部空间， 输入构件安装在内部空间中，以便延伸通过第一和第二切口的内侧，并且在推力方向上从两侧与切口的内侧表面接触，由此输入构件的相对位移 与推动方向相对于输出构件的滑块一起被第一和第二切口限制在两个位置。

公开(公告)号：US20190284967A1

公开(公告)日：2019-09-19

申请号：US16285472

申请日：2019-02-26

Applicant: OTICS CORPORATION

Inventor： Naoki HIRAMATSU

IPC: F01L1/34 ,  F01L1/18 ,  F01L13/00 ,  F01L1/46

Abstract: A variable valve mechanism includes a first member and a second member which are disposed between a cam and a valve, a switch pin that is displaced to connect and disconnect the first member to and from the second member, and a displacement device. The displacement device includes a ring-shaped plate that is fitted on a camshaft of the cam so as to be co-rotatable with the camshaft and slidable in a longitudinal direction of the camshaft and that has one side surface configured to contact the switch pin and has the other side surface including a tapered surface formed so that a plate thickness increases toward a rotational direction, and a support device formed by a support pin and a moving device that moves the support pin to a position where the support pin contacts the tapered surface and a position not contacting the tapered surface.

公开(公告)号：US20170218795A1

公开(公告)日：2017-08-03

申请号：US15365661

申请日：2016-11-30

Applicant: OTICS CORPORATION

Inventor： Koki YAMAGUCHI ,  Naoki HIRAMATSU ,  Masatoshi SUGIURA

IPC: F01L1/22 ,  F01L1/18

CPC classification number: F01L1/22 ,  F01L1/08 ,  F01L1/18 ,  F01L1/185 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2105/00 ,  F01L2820/02

Abstract: A variable valve mechanism of an internal combustion engine includes a cam, a transmission mechanism, a first variable device that controls the transmission mechanism to continuously change at least a maximum lift amount of a lift curve indicating a lift amount of a valve that corresponds to a rotation angle of the internal combustion engine, and a second variable device that controls the transmission mechanism to continuously change at least an operation angle of the lift curve. When the lift curve lies in any condition within a predetermined range that covers all or part of a variable range of the lift curve, an absolute value of a ratio of a maximum lift amount variation to an operation angle variation for a slight change from the condition caused by the first variable device is larger than that for a slight change from the condition caused by the second variable device.

公开(公告)号：US20170016361A1

公开(公告)日：2017-01-19

申请号：US15173418

申请日：2016-06-03

Applicant: OTICS CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Naoki HIRAMATSU ,  Masatoshi SUGIURA ,  Koki YAMAGUCHI ,  Motohiro YUGE

IPC: F01L13/00

CPC classification number: F01L13/0063 ,  F01L1/267 ,  F01L2013/001 ,  F01L2105/00

Abstract: In a variable valve mechanism of an internal combustion engine, when a slider is displaced relative to an input member and an output member in an axial direction, the output member turns relative to the input member in a swing direction, whereby a lift of a valve is increased or reduced. The variable valve mechanism is brought into a lift retaining state when the slider is placed in an idle running range located on a reducing direction side with respect to a boundary position. The lift retaining state is a state where when the slider is displaced in the axial direction, the input member and the output member are displaced together with the slider in the axial direction, so that the relative displacement of the slider and the relative turning of the output member do not occur and the lift of the valve is retained.

Abstract translation: 在内燃机的可变气门机构中，当滑块相对于输入构件和输出构件沿轴向移动时，输出构件相对于输入构件在摆动方向上转动，由此提升阀 增加或减少。 当滑块位于相对于边界位置的减小方向侧的怠速行驶范围内时，可变气门机构进入提升保持状态。 升降保持状态是当滑块沿轴向位移时，输入构件和输出构件与滑块一起沿轴向移动，使得滑块的相对位移和相对转动的状态 输出构件不会发生，并且保持阀的升程。

公开(公告)号：US20160312669A1

公开(公告)日：2016-10-27

申请号：US15079545

申请日：2016-03-24

Applicant: OTICS CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Koki YAMAGUCHI ,  Naoki HIRAMATSU ,  Takayuki MAEZAKO ,  Masatoshi SUGIURA ,  Shinichiro KIKUOKA ,  Masaaki TANI ,  Motohiro YUGE

IPC: F01L13/00 ,  F01L1/04 ,  F01L1/22 ,  F01L1/18

CPC classification number: F01L13/0063 ,  F01L1/053 ,  F01L1/185 ,  F01L1/2405 ,  F01L1/267 ,  F01L13/0005 ,  F01L2013/001 ,  F01L2013/105 ,  F01L2013/106 ,  F01L2105/00

Abstract: 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.

Abstract translation: 内燃机的可变气门机构包括多个摆动构件和可变装置，该可变装置使控制轴移位以一次移动摆动构件的多个滑动齿轮，从而将多个摆动构件的气门升程改变为 通过螺旋花键的啮合的时间。 摆动构件包括用于多个气缸的预定气缸的第一摆动构件和用于除了预定气缸之外的气缸的第二摆动构件，螺旋花键的螺旋角在第一和第二摆动构件之间变化。 可变装置将控制轴移动到预定的正常位置以执行正常操作，并将控制轴移动到预定的气缸切断位置，以执行气缸切断操作，其中第二摆动构件不驱动阀。

公开(公告)号：US20160108779A1

公开(公告)日：2016-04-21

申请号：US14856347

申请日：2015-09-16

Applicant: OTICS CORPORATION

Inventor： Koki YAMAGUCHI ,  Masatoshi SUGIURA ,  Naoki HIRAMATSU

IPC: F01L13/00 ,  F01L1/18

CPC classification number: F01L13/0021 ,  F01L1/18 ,  F01L1/185 ,  F01L13/0005 ,  F01L2001/186

Abstract: The present invention provides a variable valve mechanism, which includes a rocker arm including an input member and an output member; a switching device that switches a drive state of the valve by displacing the switching pin between a coupling position at which the switching pin extends between the first pinhole in the input member and the second pin hole in the output member and a non-coupling position at which the switching pin does not extend; and a lost motion spring. A displacement clearance is formed between an inner peripheral surface of the first or second pin hole and an outer peripheral surface of the switching pin to permit the relative displacement in a range of the displacement clearance at a coupled time so that a tappet clearance is not formed with the input member urged toward the cam by the lost motion spring.

Abstract translation: 本发明提供一种可变气门机构，其包括具有输入构件和输出构件的摇臂; 开关装置，其通过在切换销在输入构件中的第一针孔和输出构件中的第二销孔之间延伸的联接位置和位于输出构件的第二销孔之间的非联接位置之间移动切换销来切换阀的驱动状态; 开关管脚不延伸; 和一个迷失的弹簧。 在第一或第二销孔的内周面与切换销的外周面之间形成位移间隙，以允许在耦合时间的位移间隙的范围内的相对位移，使得不形成挺杆间隙 其中输入构件被空动弹簧推向凸轮。

公开(公告)号：US20140137823A1

公开(公告)日：2014-05-22

申请号：US14066562

申请日：2013-10-29

Applicant: OTICS CORPORATION

Inventor： Akira SUGIURA ,  Koki YAMAGUCHI ,  Naoki HIRAMATSU ,  Takayuki MAEZAKO

IPC: F01L13/00

CPC classification number: F01L13/0031 ,  F01L13/0021 ,  F01L13/0036

Abstract: 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.

Abstract translation: 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。