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1. 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.

2. 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。

3. 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。

4. 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。

5. 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。

6. 发明授权

US4498432A Variable valve timing arrangement for an internal combustion engine or the like 失效
标题翻译：用于内燃机等的可变气门正时装置
公开(公告)号：US4498432A
公开(公告)日：1985-02-12
申请号：US388705
申请日：1982-06-15
申请人： Seinosuke Hara , Shunichi Aoyama , Kazuyuki Miisho
发明人： Seinosuke Hara , Shunichi Aoyama , Kazuyuki Miisho
IPC分类号： F01L1/255 , F01L13/00 , F02B75/02 , F01L1/34 , F02D13/02
CPC分类号： F01L1/255 , F01L13/0021 , F01L13/0031 , F02B2075/027
摘要： A reaction member located above an angled rocker arm induces the latter to pivot once a telescopically extendible hydraulic tappet, under the influence of a cam, has lifted the rocker arm sufficiently to engage an apex thereof against the reaction member. The tappet includes a piston which defines therein a variable volume chamber into which hydraulic fluid may be readily introduced via a solenoid control valve, but only slowly discharged. The degree of extension of the tappet controls the valve lift induced by the rocker arm.
摘要翻译：位于成角度的摇臂上方的反作用构件在凸轮的影响下引导后者枢转一次可伸缩的液压挺杆，使摇臂充分地将其顶点接合到反作用构件上。挺杆包括在其中限定有可变容积室的活塞，液压流体可以经由电磁控制阀容易地引入，但仅缓慢排出。挺杆的伸展程度控制由摇臂引起的气门升程。

7. 发明授权

US4526142A Variable valve timing arrangement for an internal combustion engine or the like 失效
标题翻译：用于内燃机等的可变气门正时装置
公开(公告)号：US4526142A
公开(公告)日：1985-07-02
申请号：US393082
申请日：1982-06-28
申请人： Seinosuke Hara , Shunichi Aoyama , Kazuyuki Miisho
发明人： Seinosuke Hara , Shunichi Aoyama , Kazuyuki Miisho
IPC分类号： F01L1/18 , F01L1/24 , F01L13/00
CPC分类号： F01L13/00 , F01L1/182 , F01L1/2405 , F01L13/0026 , F01L2001/188
摘要： The present invention features a variable valve timing arrangement having a zero valve clearance maintaining device which takes the form of either a springy finger-like extension provided on a valve timing control lever, which extension biases a rocker arm which operates the valve, against the valve stem until the rocker arm has been cammed to pivot by a predetermined amount; or an eccentric bush on which the control lever is mounted and a telescopic hydraulic cylinder arrangement which rotates the bush to press the lever against the rocker arm with a predetermined force adequate for maintain a zero valve clearance.
摘要翻译：本发明的特征在于可变气门正时装置，其具有零阀间隙保持装置，该装置具有设置在气门正时控制杆上的弹性手指状延伸部的形式，该延伸部将使操作阀的摇臂偏压在阀直到摇臂已经被凸轮枢转预定量; 或安装有控制杆的偏心衬套和可伸缩的液压缸装置，其可旋转衬套，以足以保持零阀间隙的预定力将杆压靠在摇臂上。

8. 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。

9. 发明授权

US07942123B2 Variable valve system for internal combustion engine 失效
标题翻译：内燃机可变阀门系统
公开(公告)号：US07942123B2
公开(公告)日：2011-05-17
申请号：US12266165
申请日：2008-11-06
申请人： Seinosuke Hara , Makoto Nakamura
发明人： Seinosuke Hara , Makoto Nakamura
IPC分类号： F01L1/18
CPC分类号： F01L13/0063 , F01L1/267 , F01L13/0026 , Y10T74/20882 , Y10T74/2107
摘要： A variable valve system has a drive shaft having a drive cam, a rockable cam opening/closing an engine valve, a transmission mechanism converting torque of the drive cam into a rocking motion and transmitting it to the rockable cam, a control shaft, and a control cam. When the variable valve system varies a valve lift amount of the engine valve by changing the rocking fulcrum of the transmission mechanism, the rocking fulcrum during a small valve lift control is set in an area outside an arc locus drawn with the drive shaft being a center of the arc and passing through a rocking fulcrum position positioned at a maximum valve lift and also inside an arc locus drawn with a pivot of the one end side of the transmission mechanism being a center of the arc and passing through the rocking fulcrum position positioned at the maximum valve lift.
摘要翻译：可变阀系统具有驱动轴，该驱动轴具有驱动凸轮，可摆动的凸轮打开/关闭发动机气门，传动机构将驱动凸轮的扭矩转换成摇摆运动并将其传递到可摆动的凸轮，控制轴和控制凸轮当可变阀系统通过改变变速机构的摆动支点来改变发动机气门的气门升程量时，在小气门升程控制期间的摆动支点设定在以驱动轴为中心的弧线轨迹外的区域并且通过位于最大气门升程处的摆动支点位置，并且还在弧形轨迹内，该弧轨迹被所述变速机构的一端侧的枢轴拉出，并且通过位于所述圆弧中心的摆动支点位置最大气门升程。

10. 发明授权

US07520260B2 Multistage fuel-injection internal combustion engine 有权
标题翻译：多级燃油喷射内燃机
公开(公告)号：US07520260B2
公开(公告)日：2009-04-21
申请号：US11520606
申请日：2006-09-14
申请人： Makoto Nakamura , Tomio Hokari , Seinosuke Hara , Seiji Suga , Masahiko Watanabe
发明人： Makoto Nakamura , Tomio Hokari , Seinosuke Hara , Seiji Suga , Masahiko Watanabe
IPC分类号： F02B3/00 , F02M69/46
CPC分类号： F01N3/035 , F01N3/106 , F01N11/002 , F01N13/009 , F02B37/18 , F02B37/24 , F02D41/402 , F02D2041/001 , F02M45/086 , F02M63/0225 , Y02T10/44 , Y02T10/47
摘要： In a multi-stage fuel-injection internal combustion engine employing a fuel injection system and a variable valve actuation system, engine valve timings are variably controlled depending on engine operating conditions. An electronic engine control unit is configured to execute cooperative control of the timing of sub-injection, injected before main injection, responsively to intake valve closure timing, and also to execute cooperative control of the timing of sub-injection, injected after the-main injection, responsively to exhaust valve open timing.
摘要翻译：在采用燃料喷射系统和可变气门驱动系统的多级燃料喷射内燃机中，发动机气门正时根据发动机工作条件可变地控制。电子发动机控制单元被配置为响应于进气门关闭定时执行在主喷射之前喷射的次喷射定时的协调控制，并且还执行在主喷射之后喷射的次喷射定时的协同控制注射，响应排气阀打开时间。

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