公开(公告)号：US20180045083A1

公开(公告)日：2018-02-15

申请号：US15655680

申请日：2017-07-20

Applicant: OTICS CORPORATION

Inventor： Akira SUGIURA ,  Koki YAMAGUCHI

IPC: F01L1/20 ,  F01L1/18 ,  F01L1/047

CPC classification number: F01L1/20 ,  F01L1/047 ,  F01L1/053 ,  F01L1/08 ,  F01L1/18 ,  F01L1/185 ,  F01L1/267 ,  F01L2001/186 ,  F01L2001/467 ,  F01L2105/00

Abstract: 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.

公开(公告)号：US20170218794A1

公开(公告)日：2017-08-03

申请号：US15363866

申请日：2016-11-29

Applicant: OTICS CORPORATION

Inventor： Takayuki MAEZAKO ,  Akira SUGIURA

IPC: F01L1/18 ,  F01L1/34

CPC classification number: F01L1/18 ,  F01L1/047 ,  F01L1/185 ,  F01L1/34 ,  F01L13/0005 ,  F01L2001/186

Abstract: 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.

公开(公告)号：US20180195421A1

公开(公告)日：2018-07-12

申请号：US15835225

申请日：2017-12-07

Applicant: OTICS CORPORATION

Inventor： Takayuki MAEZAKO ,  Akira SUGIURA

IPC: F01L13/00 ,  F01L1/18

CPC classification number: F01L13/0021 ,  F01L1/18 ,  F01L1/182 ,  F01L1/185 ,  F01L13/0005 ,  F01L2001/186

Abstract: 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.

公开(公告)号：US20170350282A1

公开(公告)日：2017-12-07

申请号：US15480857

申请日：2017-04-06

Applicant: OTICS CORPORATION

Inventor： Hiroyuki SUZUKI ,  Akira SUGIURA ,  Koki YAMAGUCHI

IPC: F01L1/24 ,  F01L1/46

CPC classification number: F01L1/24 ,  F01L1/18 ,  F01L1/462 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2105/00

Abstract: 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.

公开(公告)号：US20160084119A1

公开(公告)日：2016-03-24

申请号：US14808910

申请日：2015-07-24

Applicant: OTICS CORPORATION

Inventor： Akira SUGIURA ,  Takayuki MAEZAKO

IPC: F01L1/34 ,  F01L1/18 ,  F01L1/04

CPC classification number: F01L1/34 ,  F01L1/04 ,  F01L1/08 ,  F01L1/18 ,  F01L1/185 ,  F01L1/2405 ,  F01L13/0036 ,  F01L13/08 ,  F01L2001/186 ,  F01L2105/00 ,  F01L2800/01 ,  F01L2800/03

Abstract: 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.

Abstract translation: 本发明提供一种内燃机的可变气门机构，其包括由凸轮驱动以摆动以驱动阀的摇臂，连接到摇臂的切换销，以便在 第一位置和第二位置，将切换销从第一位置移动到第二位置的换档装置以及返回切换销的复位弹簧。 在可变阀机构中，通过切换销切换阀来切换阀的驱动状态，摇臂形成为使得切换销的一端在从摇臂向外突出的状态下露出的尺寸，并且返回 弹簧外部装配到开关销的一端，以便暴露在摇臂的外部。

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。

公开(公告)号：US20130298856A1

公开(公告)日：2013-11-14

申请号：US13887160

申请日：2013-05-03

Applicant: OTICS CORPORATION

Inventor： Akira SUGIURA

IPC: F01L1/34

CPC classification number: F01L1/34 ,  F01L1/185 ,  F01L1/2405 ,  F01L13/0005 ,  F01L13/0036 ,  F01L2001/186 ,  F01L2105/00

Abstract: 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.

Abstract translation: 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。