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21. 发明专利

JP2006307656A Variable valve system of compression ignition engine 审中-公开
标题翻译：压力点火发动机可变阀系统
公开(公告)号：JP2006307656A
公开(公告)日：2006-11-09
申请号：JP2005127788
申请日：2005-04-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA MAKOTO , HARA SEINOSUKE , SUGA SEIJI , WATANABE MASAHIKO , HOKARI TOMIO
IPC分类号： F02D13/02 , F01L1/34 , F01L13/00 , F02D41/06 , F02D41/22 , F02D45/00 , F02N11/08
CPC分类号： F01L1/3442 , F01L13/0026 , F01L2001/0537 , F01L2001/34483 , F01L2013/0073 , F01L2800/00 , F01L2820/032
摘要： PROBLEM TO BE SOLVED: To improve startability, by always enhancing the effective compression ratio, in a variable valve system having a means for separating the closing timing of an intake valve from the bottom dead center.
SOLUTION: This variable valve system has an ignition timing advance hydraulic chamber 30 on one side of a vane body 22 connected to an intake camshaft and an ignition timing delay hydraulic chamber 32 on the other side, and is provided with a control means for controlling hydraulic pressure of an ignition timing advance hydraulic passage 32 and an ignition timing delay hydraulic passage 33 communicating with the respective hydraulic chambers 30 and 31. Thus, an energizing spring 25 for rotating the vane body 22 (changing a phase) and rotating the vane body 22 in the arrow direction, is arranged in a hydraulic housing 23 connected to a crankshaft timing pulley 132 via a timing chain 131. The closing timing of an intake valve is approached to the bottom dead center by being put in the most ignition timing advance state to rotation (a crank angle) of the crankshaft timing pulley 131 in failure or starting of the control means by the action of the energizing spring 25. The variable valve system of a compression ignition engine capable of keeping the effective compression ratio at the highest level possessed by the engine and capable of remarkably enhancing reliability of starting, can be provided.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过总是提高有效的压缩比，在具有将进气门的关闭正时与下死点分离的装置的可变阀系统中提高启动性。解决方案：该可变阀系统在与进气凸轮轴和另一侧的点火正时延迟液压室32连接的叶片体22的一侧上具有点火正时提前液压室30，并且设有控制装置用于控制点火正时提前液压通道32的液压和与各液压室30和31连通的点火正时延迟液压通道33.因此，用于旋转叶片体22（改变相位）并旋转叶片主体22沿箭头方向布置在经由正时链条131连接到曲轴正时皮带轮132的液压壳体23中。进气门的关闭正时通过置于最点火时间接近下死点通过激励弹簧25的作用使曲轴正时皮带轮131的前进状态转动（曲轴转角），失效或启动控制装置。可变阀值可以提供能够将有效压缩比保持在发动机所具有的最高水平并且能够显着增强启动可靠性的压燃式发动机的e系统。版权所有（C）2007，JPO＆INPIT

22. 发明专利

JP2006046228A Variable valve system for internal combustion engine 审中-公开
标题翻译：用于内燃机的可变阀系统
公开(公告)号：JP2006046228A
公开(公告)日：2006-02-16
申请号：JP2004230028
申请日：2004-08-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARA SEINOSUKE , YAMADA YOSHIHIKO
IPC分类号： F01L13/00 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To provide, for example, good re-startability of an engine by appropriate rotation control of a control shaft with using alternating torque at engine stop or the like.
SOLUTION: This system is provided with a variable mechanism changing valve lift of an intake valve by rotating a control shaft 1 in a regular and a reverse directions in a predetermined range, a hydraulic actuator 15 rotating the control shaft in the regular and the reverse directions by hydraulic pressure selectively supplied to and discharged from a first and a second operation chambers 25, 26, and a first and a second hydraulic passages 28, 29 selectively supplying and discharging hydraulic pressure to and from the first and the second operation chambers 25, 26 from an electric pump 22. A pilot valve 37 is provided in the bypass passage 36. At engine stop, free regular and reverse rotation of the control shaft is secured by opening the bypass passage to make communication between the both operation chambers, the control shaft is controlled and retained in a small valve lift side by alternating torque.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：例如，通过在发动机停止等情况下使用交流转矩适当地控制控制轴来提供发动机的良好重新起动性。解决方案：该系统通过使控制轴1在规定范围内的正反方向旋转来设置进气阀的可变机构改变气门升程，液压致动器15以常规方式旋转控制轴，以及选择性地供应到第一和第二操作室25,26的第一和第二操作室25,26以及第一和第二液压通道28,29的液压的相反方向选择性地向第一和第二操作室供给和排出液压在旁通通道36中设置有先导阀37.在发动机停止时，通过打开旁路通道来确保控制轴的自由正向和反向旋转，以使两个操作室之间的连通，控制轴通过交替转矩被控制并保持在小的气门升程侧。版权所有（C）2006，JPO＆NCIPI

23. 发明专利

JP2005351280A Actuator 审中-公开
标题翻译：执行器
公开(公告)号：JP2005351280A
公开(公告)日：2005-12-22
申请号：JP2004169285
申请日：2004-06-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARA SEINOSUKE , NAKAMURA MAKOTO
IPC分类号： F01L1/34 , F01L13/00 , F16H39/06
摘要： PROBLEM TO BE SOLVED: To provide an actuator which achieves down-sizing of a motor pump and reduction in cost by imparting an assisting force provided by an oil pump to a rotation drive motion of the motor pump.
SOLUTION: The actuator comprises a hydraulic drive mechanism 21 which outputs a driving force to a compression ratio adjustable device by means of the pressure of oil which is charged to or discharged from a pair of the first working chamber 28 and the second working chamber 29, and a motor-driven pump 22 which is driven by a reversible rotation electric motor 36 to selectively charge the oil pressure to or discharge it from the first working chamber and the second working chamber via oil paths 33 and 34. In addition, the actuator is provided an electromagnetic direction control valve 25 which imparts a drive assisting force to the electric motor by means of the oil pressure supplied from the oil pump 23 driven by an internal combustion engine to the hydraulic motor 24, and controls the working direction of the rotation force of the hydraulic motor and the amount of supply of an oil pressure from the oil pump to the hydraulic motor.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种致动器，其通过将由油泵提供的辅助力赋予电动泵的旋转驱动运动来实现电机泵的减小尺寸并降低成本。解决方案：致动器包括液压驱动机构21，该液压驱动机构21通过从一对第一工作室28和第二工作室28被充入或排出的油的压力向压缩比可调节装置输出驱动力腔室29以及由可逆旋转电动机36驱动的电动泵22，以通过油路33和34选择性地对来自第一工作室和第二工作室的油压进行充气。另外，致动器设置有电磁方向控制阀25，其通过从内燃机驱动的油泵23向液压马达24供给的油压向电动机施加驱动辅助力，并且控制工作方向液压马达的旋转力和从油泵向液压马达的油压供给量。版权所有（C）2006，JPO＆NCIPI

24. 发明专利

JP2005344609A Variable valve gear of internal combustion engine 有权
标题翻译：内燃机变速齿轮
公开(公告)号：JP2005344609A
公开(公告)日：2005-12-15
申请号：JP2004165195
申请日：2004-06-03
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARA SEINOSUKE , NAKAMURA MAKOTO
IPC分类号： F01L13/00
摘要： PROBLEM TO BE SOLVED: To provide a variable valve gear capable of stabilizing the rotation of an engine by suppressing the vibration of a control shaft in controlling the lift of a small valve when the engine is started to prevent the lift from dispersing among cylinders.
SOLUTION: A variable mechanism 9 controls the lift amount of an intake valve according to the operating state of an engine by relatively supplying and discharging a hydraulic pressure to the first and second operating chambers 30 and 31 of the hydraulic drive mechanism 23 of a hydraulic actuator 21 to rotate a vane member 32 in normal and reverse directions so as to rotate a control shaft 19 in normal and reverse directions. At the start of the engine, the engagement member 36 of an constraining mechanism 33 is engaged with an engagement hole 37 beforehand to constrain the free rotation of the vane member and, after the start, the engagement of the engagement member is released by a release mechanism 34 to release the constraint of the vane member.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种可变阀齿轮，其能够通过在发动机启动时控制小阀的升程来抑制控制轴的振动来稳定发动机的旋转，以防止升降机分散在缸。解决方案：可变机构9通过相对于液压驱动机构23的第一和第二操作室30和31向液压驱动机构23供给和排出液压而根据发动机的运行状态来控制进气门的提升量液压致动器21，用于使叶片构件32在正反方向旋转，以使控制轴19沿正向和反向旋转。在发动机起动时，约束机构33的接合构件36预先与接合孔37接合以约束叶片构件的自由旋转，并且在开始之后，通过释放释放接合构件的接合机构34以释放叶片构件的约束。版权所有（C）2006，JPO＆NCIPI

25. 发明专利

JP2005232974A Valve mechanism of internal combustion engine 有权
标题翻译：内燃机阀门机构
公开(公告)号：JP2005232974A
公开(公告)日：2005-09-02
申请号：JP2004039431
申请日：2004-02-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA MAKOTO , KAJIURA MIKIHIRO , HARA SEINOSUKE
IPC分类号： F01M1/06 , F01L1/00 , F01L1/02 , F01L1/04 , F01L1/18 , F01L1/24 , F01L1/34 , F01L1/46 , F01L3/10 , F01L13/00 , F01M9/08 , F01M9/10
CPC分类号： F01L1/2405 , F01L1/185 , F01L1/267 , F01L13/0005 , F01L13/0026 , F01L13/0063 , F01L2013/0073 , F01L2105/00 , F01L2810/02 , F01L2820/032
摘要： PROBLEM TO BE SOLVED: To improve the lubrication performance by spraying lubricating oil with the vertical motion of a spring retainer, etc. and forcedly supplying into each sliding part. SOLUTION: Rotating force of a drive cam 4 is transmitted to two swinging cams 5 via a link arm 21, a rocker arm 20 and a link rod 22 to open and close each suction valve 2, and variably control the valve lift amount of the suction valve with the rotation of a control shaft 26 and a control cam 27. Lubrication oil flowed out from both sides of a sliding gap C through a first oil passage 28, etc. is sprayed in the radiation direction followed by the eccentric rotation of the drive cam, adhered to the spring retainer 9 and a valve spring 10, splashed from here to forcedly supply to each sliding part. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过用弹簧保持器等的垂直运动喷射润滑油来提高润滑性能，并强制供给到每个滑动部件中。解决方案：驱动凸轮4的旋转力通过连杆臂21，摇臂20和连杆22传递到两个摆动凸轮5，以打开和关闭每个吸入阀2，并可变地控制气门升程量通过控制轴26和控制凸轮27的旋转而使吸入阀的旋转。通过第一油路28等从滑动间隙C的两侧流出的润滑油在辐射方向上被喷射，随后是偏心旋转驱动凸轮粘附到弹簧保持器9和阀弹簧10，从这里溅出以强制地供应到每个滑动部分。版权所有（C）2005，JPO＆NCIPI

26. 发明专利

JP2008150973A Variable valve gear of internal combustion engine 审中-公开
标题翻译：内燃机变速齿轮
公开(公告)号：JP2008150973A
公开(公告)日：2008-07-03
申请号：JP2006337809
申请日：2006-12-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARA SEINOSUKE , NAKAMURA MAKOTO
IPC分类号： F01L13/00
CPC分类号： F01L13/0026 , F01L1/022 , F01L1/08 , F01L1/267 , F01L3/06 , F01L2009/0421 , F01L2013/0073 , F02D13/0223 , Y02T10/146 , Y02T10/18 , Y10T74/2107
摘要： PROBLEM TO BE SOLVED: To provide a variable valve gear for stabilizing engine rotation, and improving fuel economy, in minimum lift control at low speed with low load, or the like of an engine, while reducing cost by improving manufacturing work and installation work efficiency. SOLUTION: This variable valve gear has one driving cam 5 per one cylinder integrally arranged on a driving shaft 4, two rocking cams 6 and 6 respectively operating respective intake valves 3 and 3 for opening-closing via a driving transmission mechanism 7 converting torque of the driving cam into rocking motion, and a control mechanism 8 capable of varying a lift quantity and an operating angle of the respective intake valves by changing an attitude of the driving transmission mechanism. A rocker arm 13 of the driving transmission mechanism is made different in the lift quantity of both intake valves in the minimum lift control by respectively changing the rocket ratio to the respective rocking cams of the rocker arm, by projecting a first linking part 13e of the Y-shaped respective other end parts 13b and 13c by a predetermined quantity from a second linking part 13f. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于稳定发动机旋转的可变阀齿轮，并且在发动机的低负载等的最小升程控制下提高燃油经济性，同时通过改进制造工作来降低成本，安装工作效率。解决方案：该可变阀齿轮具有一个整体布置在驱动轴4上的每个气缸的一个驱动凸轮5，两个摇动凸轮6和6分别操作各自的进气门3和3，用于经由驱动传动机构7进行开闭驱动凸轮的转矩变为摇摆运动，以及控制机构8，其能够通过改变驱动传动机构的姿态来改变各进气门的升程量和操作角度。驱动传动机构的摇臂13在最小提升控制中通过分别改变与摇臂的各个摆动凸轮的火箭比例，使两个进气门的提升量不同，通过将第一连杆部13e Y形各自的另一个端部13b和13c从第二连接部13f预定量。版权所有（C）2008，JPO＆INPIT

27. 发明专利

JP2007162597A Variable valve gear of internal combustion engine 审中-公开
标题翻译：内燃机变速齿轮
公开(公告)号：JP2007162597A
公开(公告)日：2007-06-28
申请号：JP2005361141
申请日：2005-12-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARA SEINOSUKE , NAKAMURA MAKOTO
IPC分类号： F01L13/00
摘要： PROBLEM TO BE SOLVED: To provide a variable valve gear in which a proper valve lift amount is secured while reducing cost by making it applicable without largely changing the structure of an existing cylinder head.
SOLUTION: A valve operation member 8 is swung through a first link member 21 according to the rotation of a drive cam 5a formed on a camshaft 5 so that a cam surface 20 presses a rocker arm 6 to open and close intake valves 3, 3. The valve operation member 8 comprises a hook-like portion 8a curvedly formed so as to bypass the outer periphery of the camshaft. The lift amounts of the intake valves can be variably controlled by controlling the rotating position of a control cam 24 through a control shaft 23 to change the position of the swing pivot of a pivot pin 18.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种可变气门机构，其中通过使可适用的气门升程量在不大幅度地改变现有气缸盖的结构的情况下可以适用于降低成本的同时降低成本。解决方案：根据形成在凸轮轴5上的驱动凸轮5a的旋转，阀操作构件8通过第一连杆构件21摆动，使得凸轮表面20按压摇臂6以打开和关闭进气门3 阀操作构件8包括弯曲地形成为绕过凸轮轴的外周的钩状部分8a。通过控制轴23控制控制凸轮24的旋转位置来改变进给阀的升程量，以改变枢轴销18的摆动枢轴的位置。（C）2007， JPO＆INPIT

28. 发明专利

JP2006307658A 2-stroke engine 审中-公开
标题翻译： 2冲程发动机
公开(公告)号：JP2006307658A
公开(公告)日：2006-11-09
申请号：JP2005127794
申请日：2005-04-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HARA SEINOSUKE , HOKARI TOMIO , SUGA SEIJI , NAKAMURA MAKOTO , WATANABE MASAHIKO
IPC分类号： F02D43/00 , F01L1/34 , F01L9/02 , F01L9/04 , F01L13/00 , F02D13/02 , F02D41/02 , F02D41/04 , F02D41/18 , F02D45/00
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To improve combustion, emission and motive power performance over a wide operation range, in a 2-stroke engine having a means for electrically controlling the opening-closing timing and a maximum lift of an intake valve and an exhaust valve.
SOLUTION: This 2-stroke engine has actuators 7 and 8 capable of electrically controlling one or both of a lift and the opening-closing timing of one or both of the intake valve 4 and the exhaust valve 5 of one time in one rotation of the engine. A signal of an air flow rate sensor 9 and a rotation sensor 11 is inputted to a control unit 13. A fuel quantity of a fuel injection injector 6 is cooperatively controlled with operation of the intake valve 4 and the exhaust valve 5 by confirming the operation of the intake valve 4 and the exhaust valve 5 from an air flow rate and a rotating speed.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了在宽的操作范围内改善燃烧，排放和动力性能，在具有用于电控制打开 - 关闭正时和进气阀的最大升程的二冲程发动机中，以及排气阀。解决方案：该二冲程发动机具有致动器7和8，其能够一次性地一次性地控制进气门4和排气门5中的一个或两个的升程和打开正时的一个或两个发动机旋转。空气流量传感器9和旋转传感器11的信号被输入到控制单元13.燃料喷射喷射器6的燃料量通过进气阀4和排气阀5的操作来协调地控制，的进气阀4和排气阀5的空气流量和转速。版权所有（C）2007，JPO＆INPIT

29. 发明专利

JP2006291913A Variable valve device for internal combustion engine 审中-公开
标题翻译：用于内燃机的可变阀装置
公开(公告)号：JP2006291913A
公开(公告)日：2006-10-26
申请号：JP2005116409
申请日：2005-04-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA MAKOTO , HARA SEINOSUKE
IPC分类号： F01L13/00
摘要： PROBLEM TO BE SOLVED: To provide a variable valve device for an internal combustion engine capable of finely adjusting a lift amount of respective intake valves, and capable of securing smooth operation while sufficiently preventing fluttering of an oscillating cam or a rocker arm occurring in operation by a torsion spring.
SOLUTION: This device is provided with the oscillating cam 5 for opening and closing the intake valve 2 by oscillation force of the rocker arm 14 through a swing arm 27. Spherical pivots 20a to 21b are integrally formed on both ends of push rods 20 and 21 intervening between a cam nose part of the oscillation cam and a forked other end part 14d of the rocker arm. The respective pivots are fitted to a recessed part 13a formed on the cam nose part and a recessed part 57a of an adjusting screw 57 of a lift adjusting mechanism 17 of the other end part of the rocker arm in the housed state. Regarding the pivots, the oscillation cam is energized to the axial direction of the respective push rods by spring force of the respective torsion springs 23 through a pressure receiving pin 22.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于内燃机的可变阀装置，其能够精细地调节各个进气门的升程量，并且能够确保平稳的操作，同时充分防止摆动凸轮或摇臂发生的颤动在扭转弹簧的作用下。解决方案：该装置设置有用于通过摇臂27由摇臂14的振动力打开和关闭进气门2的摆动凸轮5.球形枢轴20a至21b一体形成在推杆的两端 20和21介于摆动凸轮的凸轮前端部分和摇臂的叉形的另一端部14d之间。相应的枢轴装配到形成在凸轮前端部的凹部13a和处于收纳状态的摇臂的另一端部的升降调节机构17的调节螺钉57的凹部57a。关于枢轴，振动凸轮通过相应的扭转弹簧23的压力通过压力接收销22而通过相应推杆的轴向被通电。（C）2007，JPO和INPIT

30. 发明专利

JP2006207407A Valve gear for internal combustion engine 审中-公开
标题翻译：内燃机用阀门
公开(公告)号：JP2006207407A
公开(公告)日：2006-08-10
申请号：JP2005017719
申请日：2005-01-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAMURA MAKOTO , HARA SEINOSUKE
IPC分类号： F01L13/00
摘要： PROBLEM TO BE SOLVED: To provide a valve gear for reducing a manufacturing cost, by simplifying structure of a device and reducing the number of parts.
SOLUTION: A rotary driving force from a drive shaft 3 is transmitted to a drive cam 4, and the valve gear has a rocker arm 14 to which torque of the drive cam 4 and an oscillating cam 5 for opening/closing operating of an intake valve 2 by a rocking force of the rocker arm through a swing arm 3 is provided. Spherical pivots 20a to 21b are integrally formed to each of both end portions of push rods 20, 21 interposed between a cam nose part of the oscillating cam and a biforked other end part 14d of the rocker arm, and recess parts 13a, 14e in which each of pivots is fitted is formed to both of other end parts of the cam nose part of the oscillating cam and the rocker arm. Each oscillating cam is urged in an approximately axial direction of each push rod by a spring force of each torsion spring 23 through pressure receiving pins 22.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过简化装置的结构并减少零件的数量，提供一种减少制造成本的阀门齿轮。解决方案：来自驱动轴3的旋转驱动力传递到驱动凸轮4，并且阀齿轮具有摇臂14，驱动凸轮4的扭矩和用于打开/关闭操作的摆动凸轮5 提供通过摆臂3通过摇臂的摆动力的进气门2。插入在摆动凸轮的凸轮前端部和摇臂的另一端部14d之间的推杆20,21的两端部的一体形成有球面枢轴20a〜21b，以及凹部13a，14e，每个枢轴都装配在摆动凸轮和摇臂的凸轮前端部分的其他端部的两个部分上。每个摆动凸轮通过每个扭簧23通过压力接收销22的弹簧力沿每个推杆的大致轴向方向被推动。（C）2006，JPO＆NCIPI

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