公开(公告)号：US20050098128A1

公开(公告)日：2005-05-12

申请号：US10980775

申请日：2004-11-04

申请人： Yuu Yokoyama ,  Shinichi Murata

发明人： Yuu Yokoyama ,  Shinichi Murata

IPC分类号： F01L1/34 ,  F01L1/26 ,  F01L13/00

CPC分类号： F01L1/267 ,  F01L2105/00

摘要： A variable valve train apparatus operable in a low-speed mode in which a low-speed rocker arm is rocked by a low-speed cam through a roller or a slipper to thereby open or close an intake valve, and in a high-speed mode in which a high-speed rocker arm is rocked by a high-speed cam through a roller or a slipper and a changeover mechanism part on the side of the low-speed rocker arm is pressed by a changeover mechanism part on the side of the high speed rocker arm together with which the low-speed rocker arm is rocked to open or close the intake valve. The axis of the changeover mechanism part is positioned at the middle of the width of the roller or slipper in the axial direction of the rocker shaft to prevent inclination of the high-speed rocker arm.

摘要翻译： 一种以低速模式操作的可变气门机构，其中低速摇臂由低速凸轮通过辊子或拖鞋摇动，从而打开或关闭进气门，并以高速模式 其中高速摇臂由高速凸轮通过滚子或拖鞋摇动，并且低速摇臂侧的转换机构部分被高速侧的转换机构部分按压 高速摇臂与低速摇臂摇动以打开或关闭进气门。 切换机构部的轴线位于摇杆轴的轴向方向上的辊或拖鞋的宽度的中间，以防止高速摇臂的倾斜。

公开(公告)号：US07156059B2

公开(公告)日：2007-01-02

申请号：US10980775

申请日：2004-11-04

申请人： Yuu Yokoyama ,  Shinichi Murata

发明人： Yuu Yokoyama ,  Shinichi Murata

IPC分类号： F01L1/34

CPC分类号： F01L1/267 ,  F01L2105/00

摘要： A variable valve train apparatus operable in a low-speed mode in which a low-speed rocker arm is rocked by a low-speed cam through a roller or a slipper to thereby open or close an intake valve, and in a high-speed mode in which a high-speed rocker arm is rocked by a high-speed cam through a roller or a slipper and a changeover mechanism part on the side of the low-speed rocker arm is pressed by a changeover mechanism part on the side of the high speed rocker arm together with which the low-speed rocker arm is rocked to open or close the intake valve. The axis of the changeover mechanism part is positioned at the middle of the width of the roller or slipper in the axial direction of the rocker shaft to prevent inclination of the high-speed rocker arm.

摘要翻译： 一种以低速模式操作的可变气门机构，其中低速摇臂由低速凸轮通过辊子或拖鞋摇动，从而打开或关闭进气门，并以高速模式 其中高速摇臂由高速凸轮通过滚子或拖鞋摇动，并且低速摇臂侧的转换机构部分被高速侧的转换机构部分按压 高速摇臂与低速摇臂摇动以打开或关闭进气门。 切换机构部的轴线位于摇杆轴的轴向方向上的辊或拖鞋的宽度的中间，以防止高速摇臂的倾斜。

公开(公告)号：US09206712B2

公开(公告)日：2015-12-08

申请号：US13519370

申请日：2011-04-07

申请人： Atsushi Hayashida ,  Yuu Yokoyama ,  Haruhito Fujimura

发明人： Atsushi Hayashida ,  Yuu Yokoyama ,  Haruhito Fujimura

IPC分类号： F01L1/34 ,  F01L1/344

CPC分类号： F01L1/34 ,  F01L1/3442 ,  F01L2001/34469 ,  F01L2001/34476 ,  F01L2250/02 ,  F01L2800/00 ,  F01L2800/14

摘要： A variable valve timing device that allows a valve timing of an engine valve to be varied by relatively rotating a vane rotor and a housing. The variable valve timing includes a lock mechanism that releases the locking in accordance with the application of a lock releasing oil pressure. A crank angle CCA at which the application of the lock releasing oil pressure is instructed can be varied in accordance with an engine speed NE so that the lock releasing oil pressure rises at a crank angle in which cam torque is suitable for lock releasing.

摘要翻译： 一种可变气门正时装置，其允许通过相对旋转叶片转子和壳体来改变发动机气门的气门正时。 可变气门正时包括根据释放油压的锁定的应用而释放锁定的锁定机构。 可以根据发动机转速NE改变施加锁定释放油压的曲柄角CCA，使得锁定释放油压在凸轮转矩适合于锁定释放的曲柄角度上升。

公开(公告)号：US09200543B2

公开(公告)日：2015-12-01

申请号：US14115493

申请日：2011-05-13

申请人： Ichiro Yamaguchi ,  Yuu Yokoyama ,  Haruhito Fujimura

发明人： Ichiro Yamaguchi ,  Yuu Yokoyama ,  Haruhito Fujimura

IPC分类号： F01L1/34 ,  F01L1/344

CPC分类号： F01L1/344 ,  F01L1/3442 ,  F01L2001/34459 ,  F01L2001/34469 ,  F01L2250/02 ,  F01L2800/00 ,  F01L2800/05

摘要： In a variable valve timing device, which varies the rotational phase of a camshaft through the relative rotation of a vane rotor and a housing and is provided with a lock mechanism that releases the lock thereof in response to the application of lock-release hydraulic pressure, the crank angle CCA at which the application of lock-release hydraulic pressure is commanded is set variably in accordance with the pressure of the oil supplied for the application so that the lock-release hydraulic pressure rises at a crank angle at which the state of the cam torque becomes suitable for lock-release without relying on changes of time needed for the lock-release hydraulic pressure to raise resulting from oil temperature.

摘要翻译： 在可变气门正时装置中，其通过叶片转子和壳体的相对旋转来改变凸轮轴的旋转相位，并且设置有锁定机构，其响应于施加锁定释放液压而释放其锁定， 根据为施加供给的油的压力可变地设定施加了释放液压的曲柄角CCA，使得解锁液压在以下状态的曲柄角度上升 凸轮转矩适合于锁定释放，而不依赖于由油温引起的锁定释放液压升高所需的时间变化。

公开(公告)号：US09010289B2

公开(公告)日：2015-04-21

申请号：US13257484

申请日：2010-11-08

申请人： Haruhito Fujimura ,  Yuu Yokoyama ,  Masaki Numakura

发明人： Haruhito Fujimura ,  Yuu Yokoyama ,  Masaki Numakura

IPC分类号： F01L1/34 ,  F01L1/344

CPC分类号： F01L1/34 ,  F01L1/3442 ,  F01L2001/34453 ,  F01L2001/34456 ,  F01L2001/34476

摘要： In a hydraulic variable valve timing mechanism including a lock pin that locks a vane rotor and a housing against relative rotation in the most retarding phase, a specified angle α is set so that release of the lock pin is started at a time when positive cam torque acts on the vane rotor. When the crank angle reaches the specified angle α, supply of hydraulic pressure to the advancing oil chamber is started to release the lock pin from the engagement with the lock hole, thereby enabling a reliable release of the lock pin prior to start of change of valve timing.

摘要翻译： 在液压可变气门正时机构中，包括锁定叶片转子和壳体抵抗最大延迟相位的相对旋转的锁定销，设定指定角度α，使得在正凸轮转矩 作用在叶片转子上。 当曲柄角达到规定角度α时，开始向推进油室供给液压，以使锁定销脱离与锁定孔的接合，从而能够在开始变更阀之前可靠地释放锁定销 定时。

公开(公告)号：US20140048026A1

公开(公告)日：2014-02-20

申请号：US14113495

申请日：2011-05-17

申请人： Yoshiaki Miyazato ,  Toshio Imamura ,  Yuu Yokoyama ,  Masaki Numakura

发明人： Yoshiaki Miyazato ,  Toshio Imamura ,  Yuu Yokoyama ,  Masaki Numakura

IPC分类号： F01L1/344

CPC分类号： F01L1/34409 ,  F01L1/3442 ,  F01L13/0021 ,  F01L2001/34459 ,  F01L2001/34466 ,  F01L2001/34469 ,  F01L2001/34476 ,  F02D13/0238 ,  F02D37/02 ,  F02D2041/001 ,  F02D2250/21 ,  F02P5/1504 ,  Y02T10/18 ,  Y02T10/46

摘要： A variable valve actuation device for an internal combustion engine includes a variable valve timing mechanism and a valve timing restricting mechanism. When the operating state of the variable valve timing mechanism is in the phase restricting state and the operating state of the variable valve timing mechanism is changed to the phase releasing state on the basis of pressing the accelerator pedal, a torque limiting control is then performed to limit an increase in the torque of the internal combustion engine. With this control the rate of increase of the torque is set less than the rate of increase of the torque corresponding to the operation of pressing the accelerator pedal by retarding and correcting the ignition timing. Thus, when the operating state of the variable valve timing mechanism is changed from the phase restricting state to the phase releasing state, thereby reducing discomfort experienced by the driver.

摘要翻译： 用于内燃机的可变气门致动装置包括可变气门正时机构和气门正时限制机构。 当可变气门正时机构的操作状态处于相位限制状态并且基于按下加速器踏板将可变气门正时机构的操作状态改变为相位释放状态时，然后执行转矩限制控制 限制了内燃机转矩的增加。 通过该控制，扭矩的增加率被设定为比通过延迟和校正点火正时来对加速踏板的按压操作相应的转矩的增加率小。 因此，当可变气门正时机构的操作状态从相位限制状态改变到相位释放状态时，从而减少驾驶员所经受的不适。

公开(公告)号：US09587523B2

公开(公告)日：2017-03-07

申请号：US14436259

申请日：2013-10-10

申请人： Masaki Numakura ,  Yuu Yokoyama

发明人： Masaki Numakura ,  Yuu Yokoyama

IPC分类号： F01L1/344 ,  F01L1/34 ,  F01L1/356

CPC分类号： F01L1/34 ,  F01L1/3442 ,  F01L1/356 ,  F01L2001/3443 ,  F01L2001/34456 ,  F01L2001/34463 ,  F16K11/0716 ,  Y10T137/8671

摘要： An oil control valve has a housing and a spool valve that is arranged in the housing and is movable in the axial direction. The movement range of the spool valve includes a first area and a second area. In the first area, a port that is connected to a lock mechanism opens to prevent the movement of a variable valve timing mechanism through drainage of oil from the lock mechanism. In the second area, oil is supplied and drained to and from the variable valve timing mechanism through a passage inside the spool valve. The first area exists at a position separated from the second area in the movement range.

摘要翻译： 油控阀具有壳体和滑阀，其设置在壳体中并且可沿轴向移动。 滑阀的运动范围包括第一区域和第二区域。 在第一区域中，连接到锁定机构的端口打开以防止可变气门正时机构通过从锁定机构排出油而移动。 在第二区域中，油通过滑阀内的通道供给并从可变气门正时机构排出。 第一区域存在于与移动范围中的第二区域分离的位置。

公开(公告)号：US08656876B2

公开(公告)日：2014-02-25

申请号：US13093485

申请日：2011-04-25

申请人： Toshiki Fujiyoshi ,  Masaki Numakura ,  Yuu Yokoyama

发明人： Toshiki Fujiyoshi ,  Masaki Numakura ,  Yuu Yokoyama

IPC分类号： F01L1/34

CPC分类号： F01L1/3442 ,  F01L2001/34426 ,  F01L2001/3443 ,  F01L2001/34469 ,  F01L2001/34476 ,  F01L2001/34483 ,  F01L2250/02 ,  F01L2800/01

摘要： A primary resilient member urges a primary limiting member into a recess in an inserting direction in a state where a rotational phase is a limited phase in a limited phase range. A relative slide gap is radially provided between the primary limiting member and a secondary limiting member at a location adjacent to a working chamber. First and second primary slide gaps are radially provided between the primary limiting member and radially opposed wall surface sections of the receiving hole. A secondary slide gap is radially provided between the secondary limiting member and a radially opposed wall surface section of the receiving hole. The relative slide gap is larger than the first and second primary slide gaps and the secondary slide gap.

摘要翻译： 初级弹性构件在转动相位为有限相位范围内的限制相的状态下将初级限制构件推动成插入方向的凹部。 相对滑动间隙径向地设置在与工作室相邻的位置处的主限制构件和次级限制构件之间。 第一和第二主滑动间隙径向地设置在接纳孔的主限制构件和径向相对的壁表面部分之间。 径向地设置在次级限制构件和容纳孔的径向相对的壁表面部分之间的次级滑动间隙。 相对滑动间隙大于第一和第二主滑动间隙和副滑动间隙。

公开(公告)号：US20130213326A1

公开(公告)日：2013-08-22

申请号：US13257484

申请日：2010-11-08

申请人： Haruhito Fujimura ,  Yuu Yokoyama ,  Masaki Numakura

发明人： Haruhito Fujimura ,  Yuu Yokoyama ,  Masaki Numakura

IPC分类号： F01L1/34

CPC分类号： F01L1/34 ,  F01L1/3442 ,  F01L2001/34453 ,  F01L2001/34456 ,  F01L2001/34476

摘要： In a hydraulic variable valve timing mechanism including a lock pin that locks a vane rotor and a housing against relative rotation in the most retarding phase, a specified angle α is set so that release of the lock pin is started at a time when positive cam torque acts on the vane rotor. When the crank angle reaches the specified angle α, supply of hydraulic pressure to the advancing oil chamber is started to release the lock pin from the engagement with the lock hole, thereby enabling a reliable release of the lock pin prior to start of change of valve timing.

摘要翻译： 在液压可变气门正时机构中，包括锁定销，所述锁定销锁定叶片转子和壳体以抵抗最大延迟相位的相对旋转，设定指定角度α，使得在正凸轮转矩时启动锁定销的释放 作用在叶片转子上。 当曲柄角达到指定角度α时，开始向推进油室供应液压，以将锁定销释放与锁定孔的接合，从而在开始变更阀之前可以可靠地释放锁定销 定时。

公开(公告)号：US20130025568A1

公开(公告)日：2013-01-31

申请号：US13255180

申请日：2009-10-26

申请人： Yuu Yokoyama ,  Masaki Numakura

发明人： Yuu Yokoyama ,  Masaki Numakura

IPC分类号： F02M69/04

CPC分类号： F02D13/0238 ,  F01L1/3442 ,  F01L2001/34469 ,  F01L2800/01 ,  F01L2800/03 ,  F01L2800/05 ,  F02D13/02 ,  F02D41/06 ,  F02D41/062 ,  F02D41/36 ,  F02D2013/0292 ,  F02D2041/001 ,  F02D2200/021 ,  F02D2200/023 ,  Y02T10/18

摘要： If a relative rotational phase between a first rotor drivably connected to a crankshaft and a second rotor drivably connected to a camshaft is not an intermediate lock phase when an engine is started, a fuel injection starting timing is delayed more than that of the time when the relative rotational phase is the intermediate lock phase. The delay time is determined according to the working oil temperature of a valve timing mechanism during the engine start or the same oil temperature at the previous stop time of the engine, for example. As a result, the start of the engine can be completed as soon as possible while retaining the startability of the internal combustion engine.

摘要翻译： 如果在发动机启动时，可驱动地连接到曲轴的第一转子和可驱动地连接到凸轮轴的第二转子之间的相对旋转相位不是中间锁相，则燃料喷射开始定时比当 相对旋转相位是中间锁相位。 延迟时间例如根据发动机起动期间的气门正时机构的工作油温度或发动机的前一停止时间的相同油温来确定。 结果，可以在保持内燃机的起动性的同时尽快完成发动机的起动。