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1. 发明授权

US5988125A Variable valve actuation apparatus for engine 有权
标题翻译：用于发动机的可变气门致动装置
公开(公告)号：US5988125A
公开(公告)日：1999-11-23
申请号：US130490
申请日：1998-08-07
申请人： Seinosuke Hara , Yoshihiko Yamada , Keisuke Takeda , Tsutomu Hibi , Akira Ohnuki , Shunichi Aoyama , Makoto Nakamura , Shinichi Takemura , Tetsuro Goto , Katsuya Moteki , Tsuneyasu Nohara
发明人： Seinosuke Hara , Yoshihiko Yamada , Keisuke Takeda , Tsutomu Hibi , Akira Ohnuki , Shunichi Aoyama , Makoto Nakamura , Shinichi Takemura , Tetsuro Goto , Katsuya Moteki , Tsuneyasu Nohara
IPC分类号： F01L1/34 , F01L13/00
CPC分类号： F01L1/34 , F01L2013/0073
摘要： A variable valve actuation (VVA) apparatus comprises an eccentric rotary (ER) cam fixed to a driving shaft for rotation therewith, a pivotal valve operating (VO) cam, a rocker arm having a first arm and a second arm, a control rod having an eccentric control cam, and a crank arm. The eccentric control cam supports the rocker arm for pivotal motion. The crank arm interconnects the ER cam and the first arm of the rocker arm. A link interconnects the second arm of the rocker arm and the VO cam.
摘要翻译：可变气门致动（VVA）装置包括固定到驱动轴以与其一起旋转的偏心旋转（ER）凸轮，枢转阀操作（VO）凸轮，具有第一臂和第二臂的摇臂，具有偏心控制凸轮和曲柄臂。偏心控制凸轮支撑摇臂作枢轴运动。曲柄臂将ER凸轮和摇臂的第一臂相互连接。链路将摇臂的第二臂和VO凸轮相互连接。

2. 发明授权

US6041746A Variable valve actuation apparatus 有权
标题翻译：可变气门致动装置
公开(公告)号：US6041746A
公开(公告)日：2000-03-28
申请号：US208003
申请日：1998-12-09
申请人： Shinichi Takemura , Seinosuke Hara , Makoto Nakamura , Yoshihiko Yamada , Keisuke Takeda , Tetsuro Goto
发明人： Shinichi Takemura , Seinosuke Hara , Makoto Nakamura , Yoshihiko Yamada , Keisuke Takeda , Tetsuro Goto
IPC分类号： F01L13/00
CPC分类号： F01L13/0021 , F01L13/0026 , F01L13/0063 , Y10T74/2102
摘要： A variable valve actuation (VVA) apparatus comprises a supporting arm to support a pivot center of a rocker arm. The rocker arm operates a valve operating (VO) cam in response to operation of a drive cam on an engine driven drive shaft. The supporting arm is mounted for angular motion about an axis of rotation of the drive shaft to move the pivot center of the rocker arm along a circle about the drive shaft axis. The VO cam is mounted for pivot motion about the drive shaft axis. A supporting arm (SA) actuator is provided to position the pivot center of the rocker arm to any angular position to shift mode of operation of the VVA apparatus.
摘要翻译：可变气门致动（VVA）装置包括支撑臂以支撑摇臂的枢转中心。响应于发动机驱动的驱动轴上的驱动凸轮的操作，摇臂操作阀操作（VO）凸轮。支撑臂被安装成围绕驱动轴的旋转轴线进行角运动，以使摇臂的枢转中心沿着围绕驱动轴轴线的圆周移动。 VO凸轮被安装成围绕驱动轴轴线枢转运动。提供支撑臂（SA）致动器以将摇臂的枢转中心定位到任何角度位置以移动VVA装置的操作模式。

3. 发明授权

US06575128B2 Variable-valve-actuation apparatus for internal combustion engine 有权
公开(公告)号：US06575128B2
公开(公告)日：2003-06-10
申请号：US10086674
申请日：2002-03-04
申请人： Makoto Nakamura , Naoki Okamoto , Seinosuke Hara , Akinori Suzuki , Tsuneyasu Nohara , Shinichi Takemura , Takanobu Sugiyama , Shunichi Aoyama
发明人： Makoto Nakamura , Naoki Okamoto , Seinosuke Hara , Akinori Suzuki , Tsuneyasu Nohara , Shinichi Takemura , Takanobu Sugiyama , Shunichi Aoyama
IPC分类号： F01L134
CPC分类号： F01L1/34 , F01L13/0026 , F01L2013/0073 , F01L2800/00
摘要： In a VVA apparatus, when an actual lift amount detected by a lift-amount detecting sensor exceeds a basic lift-amount target value by a predetermined value or more, ECU corrects a lift phase through a lift-phase varying mechanism to separate from a piston TDC with respect to a basic lift-phase target value.

4. 发明授权

US06260523B1 Variable-valve-actuation apparatus for internal combustion engine 有权
标题翻译：用于内燃机的可变阀致动装置
公开(公告)号：US06260523B1
公开(公告)日：2001-07-17
申请号：US09498031
申请日：2000-02-04
申请人： Makoto Nakamura , Shinichi Takemura , Yoshiaki Miyazato , Yoshihiko Yamada , Tsuneyasu Nohara , Tsutomu Hibi
发明人： Makoto Nakamura , Shinichi Takemura , Yoshiaki Miyazato , Yoshihiko Yamada , Tsuneyasu Nohara , Tsutomu Hibi
IPC分类号： F01L134
CPC分类号： F01L13/0026 , F01L13/0021
摘要： In a VVA apparatus for an internal combustion engine wherein the position of contact of a cam face of a VO cam with respect to the top face of a valve lifter is changed in accordance with a change in a rocking fulcrum of a rocker arm to alter the valve lift, the maximum valve lift is obtained in a first rotated position of a control shaft where an axis of a control cam is adjacent to a driving shaft. The minimum valve lift is obtained in a second rotated position of the control shaft where the axis of the control cam is positioned near a first pivotal point of the rocker arm and a crank arm with respect to a first line connecting the axis of the control shaft and the axis of the control cam upon the maximum valve lift.
摘要翻译：在用于内燃机的VVA装置中，根据摇臂的摆动支点的变化，改变VO凸轮的凸轮面相对于气门挺杆的顶面的接触位置，以改变气门升程，在控制轴的轴线与驱动轴相邻的控制轴的第一旋转位置获得最大气门升程。在控制轴的第二旋转位置中获得最小气门升程，其中控制凸轮的轴线位于摇臂的第一枢转点附近，而曲柄臂相对于连接控制轴的轴线的第一线和最大气门升程时控制凸轮的轴线。

5. 发明授权

US6123053A Variable valve actuation apparatus for internal combustion engines 有权
标题翻译：用于内燃机的可变气门致动装置
公开(公告)号：US6123053A
公开(公告)日：2000-09-26
申请号：US316213
申请日：1999-05-21
申请人： Seinosuke Hara , Makoto Nakamura , Tetsuro Goto , Yoshihiko Yamada , Keisuke Takeda
发明人： Seinosuke Hara , Makoto Nakamura , Tetsuro Goto , Yoshihiko Yamada , Keisuke Takeda
IPC分类号： F01L13/00 , F02D13/02
CPC分类号： F01L13/0021 , F01L13/0026
摘要： A variable valve actuation apparatus incorporates a mechanism, mounted to a control shaft, to convert rotational motion of a camshaft into pivotal motion of a valve operating cam. The mechanism has different states corresponding to varying angular positions which the control shaft is adjustable to, respectively, The mechanism is continuously variable in state to one of the different states in response to a shift of the control shaft to one of the varying angular positions. The mechanism is also operative to vary the valve operating cam, in position, relative to the associated cylinder valve in response to a shift between the different states.
摘要翻译：可变气门致动装置包括安装到控制轴的机构，以将凸轮轴的旋转运动转换成阀操作凸轮的枢转运动。该机构具有与变化的角位置相对应的不同状态，控制轴可分别调节。响应于控制轴移动到变化的角位置之一，机构可以将状态连续地变化到不同状态之一。该机构还可操作以响应于不同状态之间的偏移而相对于相关联的气缸阀门改变阀操作凸轮的位置。

6. 发明授权

US6055949A Variable valve actuator apparatus 有权
标题翻译：可变阀致动器装置
公开(公告)号：US6055949A
公开(公告)日：2000-05-02
申请号：US219774
申请日：1998-12-23
申请人： Makoto Nakamura , Seinosuke Hara , Yoshihiko Yamada , Keisuke Takeda , Shinichi Takemura
发明人： Makoto Nakamura , Seinosuke Hara , Yoshihiko Yamada , Keisuke Takeda , Shinichi Takemura
IPC分类号： F01L13/00
CPC分类号： F01L13/0026 , F01L13/0021
摘要： A variable valve actuation (VVA) apparatus for an internal combustion engine comprises a drive cam fixed to a drive shaft, a valve operating (VO) cam supported by the drive shaft for pivotal motion, and a motion transmitting mechanism interconnecting the drive cam and the VO cam. The VO cam having a cam surface that extends at least from a cam lift start point to a maximum cam lift point. The cam surface includes a first section providing a ramp section, a second section providing a positive acceleration section, and a third section providing a zero acceleration section that includes a situation where acceleration continuously vary within a predetermined infinitesimal window about zero.
摘要翻译：用于内燃机的可变气门致动装置（VVA）包括固定在驱动轴上的驱动凸轮，由驱动轴支承以枢转运动的气门操作（VO）凸轮以及将驱动凸轮和 VO凸轮。该VO凸轮具有至少从凸轮升程起点延伸到最大凸轮升程点的凸轮表面。凸轮表面包括提供斜坡部分的第一部分，提供正加速部分的第二部分和提供零加速度部分的第三部分，其包括加速度在大约零的预定无限小窗口内连续变化的情况。

7. 发明授权

US06257182B1 Electromagnetic drive system for engine valve 有权
标题翻译：发动机气门用电磁驱动系统
公开(公告)号：US06257182B1
公开(公告)日：2001-07-10
申请号：US09430131
申请日：1999-10-29
申请人： Seinosuke Hara , Makoto Nakamura , Yoshihiko Yamada , Tsutomu Hibi , Katsuhisa Todoroki , Yoshiaki Miyazato
发明人： Seinosuke Hara , Makoto Nakamura , Yoshihiko Yamada , Tsutomu Hibi , Katsuhisa Todoroki , Yoshiaki Miyazato
IPC分类号： F01L904
CPC分类号： F01L9/04
摘要： An electromagnetic drive system for repeatedly opening and closing a valve of an internal combustion engine is comprised of an electromagnetic drive mechanism and a damper mechanism. The electromagnetic drive mechanism comprises a pair of electromagnets, an armature disposed between the electromagnets and a pair of springs setting the armature at a neutral position between the electromagnets when both the electromagnets are de-energized. The electromagnets are alternately energized and de-energized according to a control signal. The damper mechanism is interlocked with the electromagnetic drive mechanism and functions to decrease a speed of displacement of the valve at a terminating period of each of a valve-closing stroke and a valve-opening stroke of the valve.
摘要翻译：用于反复打开和关闭内燃机的阀的电磁驱动系统包括电磁驱动机构和阻尼机构。电磁驱动机构包括一对电磁体，电枢设置在电磁体和一对弹簧之间的电枢，当两个电磁体断电时，一对弹簧将电枢设置在电磁体之间的中间位置。电磁铁根据控制信号被交替地通电和断电。阻尼器机构与电磁驱动机构互锁，并且用于在阀关闭行程和阀的开阀行程的终止期间减小阀的位移速度。

8. 发明授权

US06497206B2 Engine with two cylinder banks each with a valve operating device enabling variation of valve timing and valve lift characteristic 有权
标题翻译：发动机具有两个气缸组，每个气缸组均带有阀门操作装置，能够改变气门正时和气门升程特性
公开(公告)号：US06497206B2
公开(公告)日：2002-12-24
申请号：US09796728
申请日：2001-03-02
申请人： Tsuneyasu Nohara , Yoshihiko Yamada , Makoto Nakamura
发明人： Tsuneyasu Nohara , Yoshihiko Yamada , Makoto Nakamura
IPC分类号： F01L1300
CPC分类号： F01L13/0021 , F01L1/02 , F01L1/022 , F01L1/024 , F01L13/0026 , F01L2001/0537 , F01L2013/0073 , F02B75/22 , F02B2275/18
摘要： In an internal combustion engine with two cylinder banks, each cylinder bank having a cylinder head mounting thereon a valve operating device enabling both valve timing and valve lift characteristic to be varied, each valve operating device drives an engine valve through an eccentric cam, a substantially ring-shaped link, a rocker arm, a rod-shaped link, and a rockable cam, by rotation of a drive shaft. A control shaft varies the attitude of the rocker arm via a control cam by rotary motion thereof, in order to change a valve lift characteristic of the engine valve. As viewed in the same axial direction, a lifting direction of the rockable cam relative to a rotational direction of the drive shaft is the same in the two cylinder banks.
摘要翻译：在具有两个气缸组的内燃机中，每个气缸组具有安装在其上的气缸盖，能够改变气门正时和气门升程特性的气门操作装置，每个气门操作装置通过偏心凸轮驱动发动机气门，环形连杆，摇臂，杆状连杆和摇摆式凸轮，通过驱动轴的旋转。控制轴通过旋转运动通过控制凸轮改变摇臂的姿态，以便改变发动机气门的气门升程特性。从相同的轴向观察，可摇动凸轮相对于驱动轴的旋转方向的提升方向在两个气缸组中是相同的。

9. 发明授权

US6029618A Variable valve actuation apparatus 有权
标题翻译：可变气门致动装置
公开(公告)号：US6029618A
公开(公告)日：2000-02-29
申请号：US179420
申请日：1998-10-27
申请人： Seinosuke Hara , Makoto Nakamura , Shinichi Takemura
发明人： Seinosuke Hara , Makoto Nakamura , Shinichi Takemura
IPC分类号： F01L13/00
CPC分类号： F01L13/0026 , F01L13/0021
摘要： A variable valve actuation (VVA) apparatus is disclosed. The VVA apparatus can keep an engine cylinder valve closed. Rotating a camshaft in timed relation with a crankshaft of the engine causes an eccentric crank cam to move a link or crank arm, thereby causing one end of a rocker arm to reciprocate. This causes the other end of the rocker arm to reciprocate. The reciprocating motion of the other end of the rocker arm is transmitted via a link to a valve operating (VO) cam, thereby causing the VO cam to pivot to push a valve lifter for opening the associated cylinder valve. An eccentric circular cam, fixed to a control rod, supports the rocker arm for rotation relative thereto in such a manner that rotation of the control rod causes a pivot center of the rocker arm to move, thereby changing position of the VO cam relative to the valve lifter. The change in the position of the VO cam causes its valve lift diagram to change. The VO cam has a base circle portion that extends over a predetermined angle with respect to the center of pivot of the VO cam and the contiguous ramp portion. A predetermined valve clearance exists between the VO cam and the valve lifter when the base circle portion faces the valve lifter. When it is desired to keep the associated cylinder valve closed, the control rod is rotated to establish a state wherein the VO cam pivots to bring not only base circle but also the ramp portions into facing relation with the valve lifter. In this state, the maximum cam lift of a cam lift diagram is greater than zero and less than the valve clearance.
摘要翻译：公开了一种可变气门致动（VVA）装置。 VVA装置可以使发动机气缸阀关闭。以与发动机的曲轴成正时关系的凸轮轴旋转，使得偏心曲柄凸轮移动连杆或曲柄臂，从而使摇臂的一端往复运动。这使得摇臂的另一端往复运动。摇臂另一端的往复运动通过连杆传递到阀门操作（VO）凸轮，从而使得VO凸轮枢转以推动用于打开相关气缸阀的气门挺杆。固定到控制杆上的偏心圆形凸轮以相对于其旋转的方式支撑摇臂，使得控制杆的旋转导致摇臂的枢转中心移动，从而改变了VO凸轮相对于气门挺杆 VO凸轮位置的变化会导致阀升程图发生变化。 VO凸轮具有相对于VO凸轮的枢轴中心和相邻的斜坡部分延伸预定角度的基圆部分。当基座部分面向气门挺杆时，在VO凸轮和气门挺杆之间存在预定的阀间隙。当希望保持关联的气缸阀关闭时，控制杆旋转以建立其中VO凸轮枢转的状态，不仅带来基圆，而且使斜面部分与阀提升器成面对关系。在这种状态下，凸轮提升图的最大凸轮升程大于零并小于阀间隙。

10. 发明授权

US06390041B2 Variable-valve-actuation apparatus for internal combustion engine 失效
标题翻译：用于内燃机的可变阀致动装置
公开(公告)号：US06390041B2
公开(公告)日：2002-05-21
申请号：US09741068
申请日：2000-12-21
申请人： Makoto Nakamura , Seinosuke Hara , Keisuke Takeda
发明人： Makoto Nakamura , Seinosuke Hara , Keisuke Takeda
IPC分类号： F01L1300
CPC分类号： F01L13/0021 , F01L13/0026 , F01L2105/00
摘要： A VVA apparatus includes an operating mechanism that changes a valve-lift amount, and a microcomputer-based controller that controls the operating mechanism to change the valve-lift amount in accordance with engine operating conditions. A first portion of the valve-lift amount between a high lift and a low lift is changed continuously, and a second portion of the valve-lift amount between the low lift and zero lift is changed with one of the low lift and zero lift selected.
摘要翻译： VVA装置包括改变气门升程量的操作机构，以及基于微机的控制器，其控制操作机构以根据发动机工作条件改变气门升程量。高升程和低升程之间的气门升程量的第一部分被连续地改变，并且低升程和零升程之间的气门升程量的第二部分被选择为低升程和零升程之一。

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