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：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：US20160108780A1

公开(公告)日：2016-04-21

申请号：US14856366

申请日：2015-09-16

Applicant: OTICS CORPORATION

Inventor： Masatoshi SUGIURA ,  Koki Yamaguchi ,  Naoki Hiramatsu

IPC: F01L13/00 ,  F01L1/18

CPC classification number: F01L13/0021 ,  F01L1/18 ,  F01L1/185 ,  F01L1/2405 ,  F01L13/0005 ,  F01L2001/186 ,  F01L2105/02

Abstract: The present invention provides a variable valve mechanism of an internal combustion engine, which includes a rocker arm that includes a roller arm including a roller that rotatably abuts against a cam and a side arm provided at a side of the roller arm and that drives a valve, and a switching device that includes a switching pin and a hydraulic chamber provided inside the rocker arm and 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 roller arm and the side arm and a non-coupling position at which the switching pin does not extend between the roller arm and the side arm based on variations in hydraulic pressure in the hydraulic chamber. The switching pin is provided on an axis of the roller, and the hydraulic chamber is provided inside the roller arm.

Abstract translation: 本发明提供了一种内燃机的可变气门机构，其包括摇臂，该摇臂包括一个滚子臂，该滚子臂包括可旋转地抵靠凸轮的滚子和设置在该滚子臂一侧的侧臂，并驱动一个阀 以及开关装置，其包括设置在所述摇臂内的切换销和液压室，并且通过在所述切换销在所述辊臂与所述侧臂之间延伸的联接位置之间移动所述切换销来切换所述阀的驱动状态 臂和非联接位置，根据液压室中的液压变化，切换销不在辊臂和侧臂之间延伸。 开关销设置在辊的轴线上，液压室设置在辊臂的内部。

公开(公告)号：US20170292416A1

公开(公告)日：2017-10-12

申请号：US15469426

申请日：2017-03-24

Applicant: OTICS CORPORATION

Inventor： Masatoshi SUGIURA ,  Naoki Hiramatsu

IPC: F01L13/00 ,  F01L1/18

CPC classification number: F01L13/0026 ,  F01L1/18 ,  F01L1/185 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2105/00

Abstract: A variable valve mechanism includes a first cam and a second cam, a main arm that drives a valve when swinging, a first sub arm that swings when pressed by the first cam, a second sub arm that swings when pressed by the second cam, and a switch device. The switch device includes a first switch pin that moves between a first coupled position between the main arm and the first sub arm and a first uncoupled position, and a second switch pin that moves between a second coupled position between the main arm and the second sub arm and a second uncoupled position. Both switch pins are arranged so as to be displaced from each other in positions where these switch pins do not overlap at least during a base circle phase in which base circles of both cams act.

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。