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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

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。

4. 发明授权

US5924334A Device for moving cam relative to its driving shaft 失效
标题翻译：用于相对于其驱动轴移动凸轮的装置
公开(公告)号：US5924334A
公开(公告)日：1999-07-20
申请号：US905962
申请日：1997-08-05
申请人： Seinosuke Hara , Akira Hidaka , Yoshihiko Yamada , Shinichi Takemura
发明人： Seinosuke Hara , Akira Hidaka , Yoshihiko Yamada , Shinichi Takemura
IPC分类号： F01L13/00
CPC分类号： F01L13/0021 , F01L13/0026 , Y10T74/2101 , Y10T74/2102
摘要： A device for moving a hollow cam relative to a driving shaft includes an intermediate member between a drive member fixed to the driving shaft and a driven member fixe to the hollow cam. A cam ring in the form of an eccentric cam is disposed between the driving shaft and the intermediate member to maintain eccentric rotation of the intermediate member relative to the driving shaft. A driver mechanism controls the angular position of the cam ring.
摘要翻译：用于相对于驱动轴移动中空凸轮的装置包括在固定到驱动轴的驱动构件和固定到中空凸轮的从动构件之间的中间构件。偏心凸轮形式的凸轮环设置在驱动轴和中间构件之间，以保持中间构件相对于驱动轴的偏心旋转。驱动机构控制凸轮环的角度位置。

5. 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。

6. 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.

7. 发明授权

US5622144A System for operating internal combustion engine 失效
标题翻译：内燃机运行系统
公开(公告)号：US5622144A
公开(公告)日：1997-04-22
申请号：US432852
申请日：1995-05-02
申请人： Makoto Nakamura , Tetsuro Goto , Shinichi Takemura
发明人： Makoto Nakamura , Tetsuro Goto , Shinichi Takemura
IPC分类号： F01L1/34 , F01L1/344 , F01L1/356 , F01L13/00 , F02D13/02
CPC分类号： F02D13/0215 , F01L1/34406 , F01L1/356 , F02D13/0249 , F02D13/0261 , F01L2201/00 , F02B2275/18 , F02D2041/001 , Y02T10/18
摘要： A system for operating an internal combustion engine including an intake valve and an exhaust valve, the system including an exhaust valve gear for the exhaust valve which incorporates an exhaust variable valve timing mechanism. The system also includes an intake valve gear for the intake valve which incorporates an intake variable valve timing mechanism. A control unit operates responsive to a low-speed/low-load operating range of the engine and a low-speed/high-load operating range of the engine to condition the exhaust variable valve timing mechanism for providing advanced opening and closing timings of the exhaust valve to cause a reduced valve overlap between the intake and exhaust valves, and at the same time condition the intake variable valve timing mechanism for decreasing an opening duration of the intake valve to provide a retarded opening timing thereof after a top dead center and an advanced closing timing thereof. The control unit operates responsive to a low-speed/medium-load operating range of the engine to condition the exhaust variable valve timing mechanism for providing retarded opening and closing timings of the exhaust valve to cause an increased valve overlap between the intake and exhaust valves, and at the same time condition the intake variable valve timing mechanism for increasing the opening duration of the intake valve to provide an advanced opening timing thereof before the top dead center and a retarded closing timing thereof.
摘要翻译：一种用于操作包括进气门和排气门的内燃机的系统，该系统包括排气门的排气门齿轮，其包括排气可变气门正时机构。该系统还包括用于进气门的进气阀齿轮，其包括进气可变气门正时机构。控制单元响应于发动机的低速/低负载运行范围和发动机的低速/高负载运行范围而运行，以调节排气可变气门正时机构，以提供先进的开启和关闭定时排气阀，导致进气门和排气门之间的阀重叠减少，同时条件使得进气阀正时机构能够减小进气门的打开持续时间，从而在上止点和其高级关闭时机。控制单元响应于发动机的低速/中负载操作范围而操作以调节排气可变气门正时机构，以提供排气门的延迟打开和关闭定时，从而在进气门和排气门之间增加阀重叠并且同时调节用于增加进气门的打开持续时间的进气可变气门正时机构，以在上止点之前提供其高级打开时机及其延迟关闭时机。

8. 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。

9. 发明授权

US06513469B2 Variable valve operating system of internal combustion engine 有权
标题翻译：内燃机变阀操作系统
公开(公告)号：US06513469B2
公开(公告)日：2003-02-04
申请号：US10093512
申请日：2002-03-11
申请人： Makoto Nakamura , Naoki Okamoto , Shinichi Takemura
发明人： Makoto Nakamura , Naoki Okamoto , Shinichi Takemura
IPC分类号： F01L134
CPC分类号： F01L13/0063 , F01L1/143 , F01L1/34 , F01L1/34406 , F01L13/0021 , F01L13/0026 , F01L2013/0073 , F01L2800/00 , F01L2800/05 , F02D41/221 , Y02T10/40
摘要： A variable valve operating system of an internal combustion engine includes a first variable mechanism capable of variably controlling a lift characteristic of an intake valve, and a second variable mechanism capable of variably controlling a valve-open and/or valve-close timing characteristic of the intake valve. A position detector detects current actual positions of the first and second variable mechanisms. A controller responds to a detected failure position of one of the first or second variable mechanisms by controlling movement of the other of the variable mechanisms within a predetermined range that avoids interference between the engine valve and a piston and between the intake and exhaust valves when the one variable mechanism fails.
摘要翻译：内燃机的可变气门操作系统包括能够可变地控制进气门的升程特性的第一可变机构和能够可变地控制进气门的开阀和/或闭阀正时特性的第二可变机构进气阀。位置检测器检测第一和第二可变机构的当前实际位置。控制器通过控制另一个可变机构在预定范围内的运动来响应于检测到的第一或第二可变机构中的一个的故障位置，该预定范围避免了当发动机气门和活塞之间以及进气门和排气门之间的干扰时一个可变机制失败。

10. 发明授权

US5913292A Variable valve timing and lift mechanism of internal combustion engine 失效
标题翻译：内燃机可变气门正时和升降机构
公开(公告)号：US5913292A
公开(公告)日：1999-06-22
申请号：US64820
申请日：1998-04-23
申请人： Shinichi Takemura , Makoto Nakamura , Akira Hidaka
发明人： Shinichi Takemura , Makoto Nakamura , Akira Hidaka
IPC分类号： F01L1/04 , F01L1/356 , F01L13/00
CPC分类号： F01L1/356 , F01L2001/0475 , F01L2001/0476
摘要： A drive shaft is synchronously driven by an internal combustion engine. A cylindrical hollow cam shaft is rotatably disposed about the drive shaft. The cam shaft has thereon a cam which actuates a valve of the engine. A first flange is formed on one end of the cam shaft. A second flange is connected to the drive shaft to rotate therewith. The second flange faces the first flange. First and second radially extending grooves are formed in mutually facing surfaces of the first and second flanges respectively. The first and second grooves are arranged at opposite sides with respect to an axis of the drive shaft. An annular disc is disposed between the first and second flanges. The annular disc has first and second pins which are slidably engaged with the first and second grooves respectively. A control housing rotatably receives therein the annular disc. The control housing is pivotal in a direction perpendicular to an axis of the drive shaft and has therein a cam receiving circular opening. A control shaft has thereon a circular eccentric cam which is slidably received in the cam receiving circular opening of the control housing. A pair of annular flanges are provided on the control shaft to intimately put therebetween a thicker portion of the control housing thereby to suppress an undesired axial displacement of the control housing on and along the control shaft.
摘要翻译：驱动轴由内燃机同步驱动。圆筒形空心凸轮轴围绕驱动轴可旋转地设置。凸轮轴上具有致动发动机的阀的凸轮。第一凸缘形成在凸轮轴的一端。第二凸缘连接到驱动轴以与其一起旋转。第二凸缘面向第一凸缘。第一和第二径向延伸的槽分别形成在第一和第二凸缘的相互面对的表面中。第一和第二槽相对于驱动轴的轴线布置在相对侧。环形盘设置在第一和第二凸缘之间。环形盘具有分别与第一和第二槽可滑动地接合的第一和第二销。控制壳体可旋转地容纳环形盘。控制壳体在垂直于驱动轴的轴线的方向上枢转，并且在其中具有接收圆形开口的凸轮。控制轴上有一个圆形的偏心凸轮，它可滑动地容纳在控制壳体的凸轮接收圆形开口中。一对环形凸缘设置在控制轴上，以紧密地放置在控制壳体的较厚部分之间，从而抑制控制壳体在控制轴上和沿控制轴的不期望的轴向位移。

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