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。

公开(公告)号：US20070175427A1

公开(公告)日：2007-08-02

申请号：US11698057

申请日：2007-01-26

申请人： Yasumichi Inoue ,  Yuu Yokoyama ,  Zenichiro Mashiki ,  Noboru Takagi ,  Haruyuki Urushihata

发明人： Yasumichi Inoue ,  Yuu Yokoyama ,  Zenichiro Mashiki ,  Noboru Takagi ,  Haruyuki Urushihata

IPC分类号： F01L1/34

CPC分类号： F02D13/08 ,  F01L1/344 ,  F01L2001/0537 ,  F01L2800/03 ,  Y02T10/18

摘要： When an ignition switch is turned off, an ECU executes a program including the steps of: stopping an engine; setting a phase of an intake camshaft (or a phase in which an intake valve opens/closes) to be a maximally retarded phase; advancing the phase of the intake camshaft; detecting the phase of the intake camshaft as based on a number or rotations of an electric motor of an intake VVT mechanism changing the phase of the intake camshaft; and, if the phase detected as based on the number or rotations of the electric motor is advanced to a target phase, stopping changing the phase of the intake camshaft.

摘要翻译： 当点火开关关闭时，ECU执行程序，包括以下步骤：停止发动机; 将进气凸轮轴（或进气门打开/关闭的相位）设定为最大延迟相位; 推进进气凸轮轴的相位; 基于改变进气凸轮轴的相位的进气VVT机构的电动机的数量或旋转来检测进气凸轮轴的相位; 并且如果基于电动机的数量或旋转检测到的相位前进到目标相位，则停止改变进气凸轮轴的相位。

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：US20140069363A1

公开(公告)日：2014-03-13

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： F01L1/344

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：US20120291750A1

公开(公告)日：2012-11-22

申请号：US13382048

申请日：2010-02-10

申请人： Yuu Yokoyama ,  Masaki Numakura

发明人： Yuu Yokoyama ,  Masaki Numakura

IPC分类号： F02D13/02

CPC分类号： F01L1/3442 ,  F01L2001/34453 ,  F01L2001/34459 ,  F01L2001/34466 ,  F01L2001/34469 ,  F01L2001/34473 ,  F02D41/042 ,  F02D41/062 ,  F02D2041/001 ,  F02D2200/1006 ,  F02D2200/503 ,  F02N11/00 ,  F02N19/00 ,  F02N2200/023 ,  F02N2200/024 ,  F02N2200/063

摘要： A start control device for an internal combustion engine controls a starting manner of the engine having a hydraulic variable mechanism, which fixes valve timing at a middle angle. Specifically, with the engine speed during cranking when the valve timing is not fixed at the middle angle defined as a first engine speed and the engine speed during cranking when the valve timing is fixed at the middle angle defined as a second engine speed, the start control device performs starting control for decreasing the first engine speed compared to the second engine speed during engine starting. As a result, the valve timing is fixed at the middle angle at increased frequency.

摘要翻译： 用于内燃机的起动控制装置控制具有以中间角度固定气门正时的液压可变机构的发动机的起动方式。 具体而言，当气门正时未被固定在被定义为第一发动机转速的中间角度时的起动期间的发动机转速以及当气门正时被固定为被定义为第二发动机转速的中间角度时的起动期间的发动机转速时，起动 控制装置在发动机起动期间执行与第二发动机转速相比降低第一发动机转速的起动控制。 结果，气门正时以增加的频率固定在中角处。

公开(公告)号：US20120017859A1

公开(公告)日：2012-01-26

申请号：US13258861

申请日：2010-04-12

申请人： Masaki Numakura ,  Yuu Yokoyama ,  Yoshiro Kamo

发明人： Masaki Numakura ,  Yuu Yokoyama ,  Yoshiro Kamo

IPC分类号： F01L1/344

CPC分类号： F01L1/3442

摘要： A variable valve timing apparatus includes; a variable valve timing mechanism; an intermediate locking mechanism that locks the valve timing at an intermediate timing; and a hydraulic pressure supply device that hydraulically actuates these mechanisms. The hydraulic pressure supply device uses a single oil control valve to control a state where lubricating oil is supplied to or drained from each of an advance chamber, a retard chamber and an intermediate chamber of an intermediate locking mechanism. The oil control valve has first to fourth modes. The oil control valve advances the valve timing and actuates the intermediate locking mechanism in a projecting direction in the third mode, and, under a situation that the amount of lubricating oil supplied to the variable valve timing mechanism is smaller than that in the third mode, advances the valve timing and actuates the intermediate locking mechanism in a release direction in the fourth mode.

摘要翻译： 可变气门正时装置包括： 可变气门正时机构; 中间锁定机构，其在中间定时锁定气门正时; 以及液压驱动这些机构的液压供给装置。 液压供给装置使用单一的油控阀来控制从中间锁定机构的前进室，延迟室和中间室中的每一个供给或排出润滑油的状态。 油控阀具有第一至第四模式。 在第三模式中，油控制阀前进阀正时并沿着突出方向启动中间锁定机构，并且在供给可变气门正时机构的润滑油量小于第三模式时， 推进阀门正时并且在第四模式中在释放方向上致动中间锁定机构。

公开(公告)号：US20100170461A1

公开(公告)日：2010-07-08

申请号：US12160708

申请日：2007-01-11

申请人： Yuu Yokoyama ,  Yoshihito Moriya ,  Yuji Itoh ,  Tadao Hasegawa ,  Masayoshi Hattori ,  Akihiko Takenaka

发明人： Yuu Yokoyama ,  Yoshihito Moriya ,  Yuji Itoh ,  Tadao Hasegawa ,  Masayoshi Hattori ,  Akihiko Takenaka

IPC分类号： F01L1/34

CPC分类号： F01L1/352

摘要： An intake VVT mechanism includes: link mechanisms and connected to an intake camshaft and operated to change a phase of an intake valve; and a control pin sliding on a guide plate along a guide groove to allow the link mechanism to operate; a control pin sliding on the guide plate along a guide groove to allow the link mechanism to operate. The control pin is detached from an end of the guide groove when the control pins and are moved in a direction allowing the phase to be retarded until the control pin abuts against an end of the guide groove.

摘要翻译： 进气VVT机构包括：连杆机构并连接到进气凸轮轴并且操作以改变进气门的相位; 以及控制销，其沿着引导槽滑动在导向板上，以允许连杆机构工作; 控制销沿引导槽在引导板上滑动以允许连杆机构操作。 当控制销被移动时，控制销从引导槽的端部脱离，并允许相位延迟，直到控制销与导槽的端部抵接。

公开(公告)号：US20070095314A1

公开(公告)日：2007-05-03

申请号：US11540672

申请日：2006-10-02

申请人： Yuu Yokoyama ,  Yoshihito Moriya ,  Yuji Itoh ,  Tadao Hasegawa ,  Masayoshi Hattori

发明人： Yuu Yokoyama ,  Yoshihito Moriya ,  Yuji Itoh ,  Tadao Hasegawa ,  Masayoshi Hattori

IPC分类号： F01L1/34

CPC分类号： F01L1/34 ,  F01L2800/00 ,  F01L2810/03 ,  F02D13/0207 ,  Y02T10/18

摘要： An ECU executes a program including the steps of detecting the crank angle, advancing, at a crank angle at which the cam torque is exerted in the direction opposite to the rotational direction of an intake camshaft, the phase in which the intake valve is closed and retarding, at a crank angle at which the cam torque is exerted in the rotational direction of the intake camshaft, the phase in which the intake valve is closed.

摘要翻译： ECU执行程序，包括以下步骤：检测曲轴角度，在与进气凸轮轴的旋转方向相反的方向上施加凸轮转矩的曲柄角，进气门关闭的相位以及 以在进气凸轮轴的旋转方向上施加凸轮转矩的曲柄角，进气门关闭的相位延迟。