公开(公告)号：US20080210181A1

公开(公告)日：2008-09-04

申请号：US12068822

申请日：2008-02-12

申请人： Makoto Nakamura

发明人： Makoto Nakamura

IPC分类号： F01L1/34

CPC分类号： F01L13/0021

摘要： When an actuation mechanism fails to operate and thus fails to control a turning of a control shaft of a valve lift varying mechanism, a moving member is enforcedly moved to an intermediate stable position by a biasing force that is produced by combining a first type force that biases the control shaft in a direction to increase a valve lift degree of an engine valve and a second type force that biases the control shaft in a direction to reduce the valve lift degree of the engine valve. The intermediate stable position of the moving member assures an easy engine starting even in a cold engine condition.

摘要翻译： 当致动机构不能操作并且因此不能控制气门升程变化机构的控制轴的转动时，移动构件通过偏压力被强制地移动到中间稳定位置，所述偏置力通过将第一类力 使控制轴沿着增大发动机气门的气门升程度的方向偏压控制轴，以及使控制轴沿着减小发动机气门的升程程度的方向偏压的第二类力。 移动构件的中间稳定位置确保即使在冷发动机状态下容易的发动机起动。

公开(公告)号：US20080190390A1

公开(公告)日：2008-08-14

申请号：US12026904

申请日：2008-02-06

申请人： Masahiko TASHIRO

发明人： Masahiko TASHIRO

IPC分类号： F01L1/34 ,  F01L1/245

CPC分类号： F01L1/24 ,  F01L1/20 ,  F01L13/0021 ,  F01L2013/0068 ,  F01L2103/01 ,  Y10T74/20882

摘要： In a lift amount adjusting device in a valve-operating mechanism which changes at least a lift amount, a rocker arm is rockably arranged in a driving-force transmitting path for transmitting a driving force of a valve cam to an engine valve, and a jig abuts on the rocker arm to establish a rocking fulcrum in place of a hydraulic tappet which generates an urging force for adjusting a clearance of the driving-force transmission path. Even when an engine is stopped to make the hydraulic tappet inoperative, the jig secures a rocking fulcrum of the rocker arm, thereby enabling adjustment of the lift amount of the intake valve. Also, a load acting on the rocker arm during the adjustment of a lift amount of the intake valve is supported by the jig, and is not transmitted to the hydraulic tappet.

摘要翻译： 在至少改变升程量的气门操作机构的提升量调节装置中，摇臂被摆动地布置在用于将阀凸轮的驱动力传递到发动机气门的驱动力传递路径中，并且夹具 靠在摇臂上以建立摇摆支点来代替产生用于调节驱动力传递路径的间隙的推动力的液压挺杆。 即使在发动机停止以使液压挺杆不起作用的情况下，夹具也可以固定摇臂的摆动支点，能够调整进气门的升程量。 此外，在调节进气阀的升程量期间作用在摇臂上的负载由夹具支撑，并且不被传递到液压挺杆。

公开(公告)号：US07404385B2

公开(公告)日：2008-07-29

申请号：US11808724

申请日：2007-06-12

申请人： Masahiko Tashiro ,  Akiyuki Yonekawa

发明人： Masahiko Tashiro ,  Akiyuki Yonekawa

IPC分类号： F01L1/34

CPC分类号： F01L1/08 ,  F01L1/185 ,  F01L1/24 ,  F01L1/26 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0026 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2105/00 ,  F01L2820/01

摘要： A lift-variable valve-operating system for an internal combustion engine, comprising: subsidiary cams which are swingably supported on a movable support shaft capable of being displaced within a plane perpendicular to a rotational axis of a valve-operating cam, and which are swung following the valve-operating cam; and rocker arms each operatively connected to an engine valve and operated following the subsidiary cams, operating characteristics including a lift amount of the engine valve being changed by displacing the movable support shaft, wherein the system further includes a control arm carried in an engine body to be capable of turning about a turning axis parallel to a rotational axis of the valve-operating cam, wherein the movable support shaft having an axis parallel to the turning axis of the control arm is retained on the control arm at a location offset from the turning axis, wherein a hydraulic tappet is mounted in the control arm to support one end of each of the rocker arms, and wherein a valve abutment portion provided at the other end of each of the rocker arms is in abutment against an upper end of a stem of the engine valve. Thus, it is possible to enhance the control accuracy in a state in which the lift amount of the engine valve is controlled to be low.

公开(公告)号：US07392773B2

公开(公告)日：2008-07-01

申请号：US11808722

申请日：2007-06-12

申请人： Masahiko Tashiro ,  Akiyuki Yonekawa

发明人： Masahiko Tashiro ,  Akiyuki Yonekawa

IPC分类号： F01L1/34

CPC分类号： F01L1/08 ,  F01L1/185 ,  F01L1/24 ,  F01L1/26 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0026 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2105/00 ,  F01L2820/01

摘要： A lift-variable valve-operating system for an internal combustion engine, comprising: subsidiary cams which are swingably supported on a movable support shaft capable of being displaced within a plane perpendicular to a rotational axis of a valve-operating cam, and which are swung following the valve-operating cam; and rocker arms each operatively connected to an engine valve and operated following the subsidiary cams, operating characteristics including a lift amount of the engine valve being changed by displacing the movable support shaft, wherein the system further includes a control arm carried in an engine body to be capable of turning about a turning axis parallel to a rotational axis of the valve-operating cam, wherein the movable support shaft having an axis parallel to the turning axis of the control arm is retained on the control arm at a location offset from the turning axis, wherein a hydraulic tappet is mounted in the control arm to support one end of each of the rocker arms, and wherein a valve abutment portion provided at the other end of each of the rocker arms is in abutment against an upper end of a stem of the engine valve. Thus, it is possible to enhance the control accuracy in a state in which the lift amount of the engine valve is controlled to be low.

摘要翻译： 一种用于内燃机的可变换阀操作系统，包括：可摆动地支撑在可移动的支撑轴上的辅助凸轮，其能够在与阀操作凸轮的旋转轴线垂直的平面内移位，并且摆动 遵循阀门操作凸轮; 和摇臂，每个操作地连接到发动机气门并在辅助凸轮之后操作，包括通过移动可移动支撑轴而改变发动机气门的提升量的操作特性，其中该系统还包括一个承载在发动机主体中的控制臂 能够转动平行于阀操作凸轮的旋转轴线的转动轴线，其中具有平行于控制臂的转动轴线的轴线的可移动支撑轴被保持在控制臂上的偏离转动的位置 其中，液压挺杆安装在所述控制臂中以支撑每个所述摇臂的一端，并且其中设置在每个所述摇臂的另一端的阀邻接部分与所述杆的上端抵接 的发动机气门。 因此，能够将发动机气门的升程量控制在低的状态下提高控制精度。

公开(公告)号：US20080141960A1

公开(公告)日：2008-06-19

申请号：US11986502

申请日：2007-11-21

申请人： Jeffrey D. Rohe ,  Michael B. Knauf

发明人： Jeffrey D. Rohe ,  Michael B. Knauf

IPC分类号： F01L1/12 ,  F01L1/20 ,  F01L9/04

CPC分类号： F01L1/185 ,  F01L1/024 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0063 ,  F01L2001/0476 ,  F01L2013/0068 ,  F01L2013/0073 ,  F01L2105/00

摘要： A variable valve actuation system having a crank-based eccentric transmission driven by an electric motor to control valve lift, duration, and phasing in the cylinder head of an internal combustion engine. A rocker sub-assembly for each valve is pivotably disposed on a pivot shaft between the camshaft and the roller finger follower roller. A primary control crankshaft includes the pivot shaft and is itself rotated about its axis by a connecting rod driven by a motorized secondary crank mechanism to displace the rocker sub-assembly pivot shaft along an arcuate path to change the angular relationship of the rocker sub-assembly to the camshaft, thus changing the valve opening and closing timing and valve lift.

摘要翻译： 一种可变气门致动系统，其具有由电动机驱动的曲柄式偏心传动装置，以控制内燃机的气缸盖中的气门升程，持续时间和相位。 用于每个阀的摇杆子组件可枢转地设置在凸轮轴和辊指从动辊之间的枢转轴上。 主控制曲柄轴包括枢转轴，并且本身通过由电动次级曲柄机构驱动的连杆围绕其轴线旋转，以沿着弓形路径移动摇臂子组件枢轴，以改变摇杆子组件的角度关系 到凸轮轴，从而改变阀的开启和关闭正时和气门升程。

公开(公告)号：US07363895B2

公开(公告)日：2008-04-29

申请号：US11808723

申请日：2007-06-12

申请人： Masahiko Tashiro ,  Akiyuki Yonekawa

发明人： Masahiko Tashiro ,  Akiyuki Yonekawa

IPC分类号： F01L1/34

CPC分类号： F01L1/08 ,  F01L1/185 ,  F01L1/24 ,  F01L1/26 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0026 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2105/00 ,  F01L2820/01

摘要： A lift-variable valve-operating system for an internal combustion engine, comprising: subsidiary cams which are swingably supported on a movable support shaft capable of being displaced within a plane perpendicular to a rotational axis of a valve-operating cam, and which are swung following the valve-operating cam; and rocker arms each operatively connected to an engine valve and operated following the subsidiary cams, operating characteristics including a lift amount of the engine valve being changed by displacing the movable support shaft, wherein the system further includes a control arm carried in an engine body to be capable of turning about a turning axis parallel to a rotational axis of the valve-operating cam, wherein the movable support shaft having an axis parallel to the turning axis of the control arm is retained on the control arm at a location offset from the turning axis, wherein a hydraulic tappet is mounted in the control arm to support one end of each of the rocker arms, and wherein a valve abutment portion provided at the other end of each of the rocker arms is in abutment against an upper end of a stem of the engine valve. Thus, it is possible to enhance the control accuracy in a state in which the lift amount of the engine valve is controlled to be low.

公开(公告)号：US20080035086A1

公开(公告)日：2008-02-14

申请号：US11808724

申请日：2007-06-12

申请人： Masahiko Tashiro ,  Akiyuki Yonekawa

发明人： Masahiko Tashiro ,  Akiyuki Yonekawa

IPC分类号： F01L1/34

CPC分类号： F01L1/08 ,  F01L1/185 ,  F01L1/24 ,  F01L1/26 ,  F01L1/267 ,  F01L13/0021 ,  F01L13/0026 ,  F01L13/0063 ,  F01L2013/0068 ,  F01L2105/00 ,  F01L2820/01

摘要： A lift-variable valve-operating system for an internal combustion engine, comprising: subsidiary cams which are swingably supported on a movable support shaft capable of being displaced within a plane perpendicular to a rotational axis of a valve-operating cam, and which are swung following the valve-operating cam; and rocker arms each operatively connected to an engine valve and operated following the subsidiary cams, operating characteristics including a lift amount of the engine valve being changed by displacing the movable support shaft, wherein the system further includes a control arm carried in an engine body to be capable of turning about a turning axis parallel to a rotational axis of the valve-operating cam, wherein the movable support shaft having an axis parallel to the turning axis of the control arm is retained on the control arm at a location offset from the turning axis, wherein a hydraulic tappet is mounted in the control arm to support one end of each of the rocker arms, and wherein a valve abutment portion provided at the other end of each of the rocker arms is in abutment against an upper end of a stem of the engine valve. Thus, it is possible to enhance the control accuracy in a state in which the lift amount of the engine valve is controlled to be low.

公开(公告)号：US20070295292A1

公开(公告)日：2007-12-27

申请号：US11716745

申请日：2007-03-12

申请人： Akira Sugiura ,  Tetsuya Niwa ,  Tamotsu Yamamoto ,  Katsutoshi Kitagawa ,  Tomiyasu Hirano ,  Tomoki Miyoshi

发明人： Akira Sugiura ,  Tetsuya Niwa ,  Tamotsu Yamamoto ,  Katsutoshi Kitagawa ,  Tomiyasu Hirano ,  Tomoki Miyoshi

IPC分类号： F01L1/047

CPC分类号： F01L13/0021 ,  F01L2105/00 ,  F01L2820/032

摘要： The present invention provides a variable valve mechanism which includes a rotating cam provided on a camshaft, a swing arm that contacts with the rotating cam to swing, a drive arm that drives a valve in conjunction with the swing arm, a variable arm that turns the drive arm around a swing axis of the swing arm, an actuator that drives the variable arm, and cam device that is provided between the swing arm and the drive arm. The variable arm is provided so as to be able to rotate relatively around the same axis as the swing arm, and the cam device changes the initial position of the drive arm with respect to the swing arm accompanying the turning of the drive arm.

摘要翻译： 本发明提供一种可变阀机构，其包括设置在凸轮轴上的旋转凸轮，与旋转凸轮相接触的摆臂摆动，与摇臂结合驱动阀的驱动臂，使臂 围绕摆臂的摆动轴的驱动臂​​，驱动可变臂的致动器以及设置在摆臂和驱动臂之间的凸轮装置。 可变臂被设置成能够相对于与摆臂相同的轴线旋转，并且凸轮装置随着驱动臂的转动而改变驱动臂相对于摆臂的初始位置。

公开(公告)号：US20070289565A1

公开(公告)日：2007-12-20

申请号：US10585634

申请日：2005-01-13

申请人： Noriaki Fujii ,  Katsunori Nakamura ,  Akiyuki Yonekawa

发明人： Noriaki Fujii ,  Katsunori Nakamura ,  Akiyuki Yonekawa

IPC分类号： F01M1/06

CPC分类号： F01L13/0021 ,  F01L13/0015 ,  F01M9/10

摘要： An engine valve operating system is provided in which a rocker arm (63) linked and connected to an engine valve (19) and has a cam-abutting portion (65) to abut a valve operating cam (69) is turnably connected, via first and second connecting shafts (64, 66), to one end of a first link arm (61) turnably supported on an engine body (10) and one end of a second link arm (62) turnably supported by a displaceable movable shaft (68a). Also, oil supply means (58) which supply oil to the upper connecting shaft (64) of first and second connecting shafts (64, 66) are fixed to the engine body (10). This makes it possible to implement an engine valve operating system which is compact in size, ensures follow-up ability of the valve opening/closing operation, has a simple lubricating structure with a reduced number of parts, and ensures smooth valve operation while allowing the lift amount of the engine valve to be varied continuously.

摘要翻译： 提供了一种发动机气门操作系统，其中连接并连接到发动机气门（19）并且具有邻接气门操作凸轮（69）的凸轮抵接部分（65）的摇臂（63）经由首先可转动地连接 和第二连接轴（64,66），可旋转地支撑在发动机本体（10）上的第一连杆臂（61）的一端和由可移动的可移动轴（68）可转动地支撑的第二连杆臂（62）的一端 一个）。 此外，向第一和第二连接轴（64,66）的上连接轴（64）供油的供油装置（58）固定在发动机主体（10）上。 这使得可以实现尺寸紧凑的发动机气门操作系统，确保阀打开/关闭操作的后续能力，具有简单的润滑结构，减少了部件数量，并且确保了平稳的阀操作，同时允许 发动机气门的升程量要连续变化。

公开(公告)号：US07292927B2

公开(公告)日：2007-11-06

申请号：US11206992

申请日：2005-08-19

申请人： Yuji Yasui ,  Kanako Shimojo

发明人： Yuji Yasui ,  Kanako Shimojo

IPC分类号： G05B13/02 ,  F02D13/02 ,  F01L13/00

CPC分类号： F02D41/0002 ,  F01L1/34 ,  F01L1/352 ,  F01L13/0021 ,  F01L13/0063 ,  F02D13/0211 ,  F02D13/0219 ,  F02D15/02 ,  F02D41/1403 ,  F02D41/1406 ,  Y02T10/18 ,  Y02T10/42

摘要： A control system which controls a control amount via a movable mechanism, such that it is possible to reduce impact occurring when a movable part of the movable mechanism is driven to a limit of the movable range, and time required for the driving, in a compatible manner. An ECU 2 of a control system 1 calculates, when Liftin

摘要翻译： 一种控制系统，其通过可移动机构控制控制量，使得当可移动机构的可移动部分被驱动到可移动范围的极限和驱动所需的时间时，可以减少在兼容 方式。 控制系统1的ECU2计算当Liftin