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1. 发明专利

JP2008101611A Variable valve gear for internal combustion engine 审中-公开
标题翻译：用于内燃机的变速阀齿轮
公开(公告)号：JP2008101611A
公开(公告)日：2008-05-01
申请号：JP2007236069
申请日：2007-09-12
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： TAKAGI YUSUKE , ARIMA KAZUKI , SHINDO SHIGETERU
IPC分类号： F01L13/00
摘要： PROBLEM TO BE SOLVED: To expand variable range of lift characteristics in a variable valve gear. SOLUTION: The variable valve gear 1 is provided with an intermediate position retention mechanism capable of retaining a control shaft 12 at an intermediate position between an upper limit position and a lower limit position in a rotatable range, between a flange part 24 of the control shaft 12 and a flange support part 25 of a cam bracket. The intermediate position retention mechanism comprises a stopper pin 32 stored in a stopper pin storage part 31 of the flange support part 25, a recess part 33 formed at a predetermined position on an axial end surface 24a of the flange part 24, and a coil spring 34 energizing the stopper pin 32 in a flange part 24 side, and retains the control shaft 12 at the intermediate position by making a tip of the stopper pin 32 project out of the stopper pin storage part 31 and engage with the recess part 33. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：扩大可变气门齿轮的升降特性的可变范围。解决方案：可变阀齿轮1设置有中间位置保持机构，其能够将控制轴12保持在可旋转范围内的上限位置和下限位置之间的中间位置，在凸缘部分24 控制轴12和凸轮支架的凸缘支撑部25。中间位置保持机构包括：存储在凸缘支撑部25的止动销收纳部31中的止动销32，形成在凸缘部24的轴向端面24a上的预定位置的凹部33，以及螺旋弹簧 34使止动销32向凸缘部24侧通电，并且通过使止动销32的前端突出于止动销收纳部31并与凹部33卡合而将控制轴12保持在中间位置。 P>版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2012137151A Bearing cap and ladder frame 有权
标题翻译：轴承座和梯架
公开(公告)号：JP2012137151A
公开(公告)日：2012-07-19
申请号：JP2010290315
申请日：2010-12-27
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： HOSHIKAWA HIROTOSHI , ARIMA KAZUKI
IPC分类号： F16C9/02 , F02F7/00
CPC分类号： F02F7/0053 , F16C9/02 , F16C35/02
摘要： PROBLEM TO BE SOLVED: To provide a bearing cap which can reduce stress acting on a bulk head from a crankshaft via the bearing cap while securing the rigidity of the bearing cap.SOLUTION: In the bearing cap (11) which rotatably supports the crankshaft by being bolt-fastened to the bulk head (2) of a cylinder block (1), expanded parts (61, 62) outwardly projected from both side faces (33, 34) of the bearing cap are formed at both ends of the bearing cap including a joining face (12) joined with the bulk head (2), and the expanded parts (61, 62) have first expanded parts (25, 26) which are formed at the joining face (12) joined with the bulk head (2), and second expanded parts (36, 37) which are smaller than the first expanded parts (25, 26) in projection amount, and formed at the side of a bolt head.
摘要翻译：要解决的问题：提供一种轴承盖，其可以在确保轴承盖的刚性的同时，通过轴承盖从曲轴上减小作用在散装头上的应力。解决方案：在通过螺栓紧固到气缸体（1）的主体头（2）上可旋转地支撑曲轴的轴承盖（11）中，从两个侧面向外突出的扩展部件（61,62）在所述轴承盖的两端部形成有所述轴承盖（33,34），所述轴承盖包括与所述主体（2）接合的接合面（12），所述扩展部（61,62）具有第一扩张部 26），其形成在与主体头（2）接合的接合面（12）处，以及第二扩展部（36,37），其以突出量小于第一扩张部（25,26），并形成在螺栓头的一侧。版权所有（C）2012，JPO＆INPIT

3. 发明专利

JP2009144687A 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：JP2009144687A
公开(公告)日：2009-07-02
申请号：JP2007325959
申请日：2007-12-18
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ARIMA KAZUKI , SHINDO SHIGETERU , TOMOGANE KAZUTO , TAKAGI YUSUKE
IPC分类号： F02D13/02
CPC分类号： Y02T10/18
摘要： PROBLEM TO BE SOLVED: To surely fix and hold a variable valve gear to a desired intermediate operating angle by a simple configuration for fail-safe or a next start of an internal combustion engine.
SOLUTION: A first variable valve train 5 capable of continuously variably controlling an operating angle determines the operating angle by varying the rotating position of a control shaft 32 by an actuator. An engagement hole 54 is formed in the stopper plate 51 of the control shaft 32. A stopper pin 55 projecting when the supply of oil is cut off is installed on a cylinder head. The stopper plate and the stopper are engageable with each other at a predetermined intermediate operating angle. When a system fails, the stopper pin 55 is made to project, the control shaft 32 is temporarily moved to the large operating angle side, and the stopper pin 55 is engaged with the engagement hole 54 by utilizing the gradual return of the control shaft 32 to the small operating angle side by the reaction force of a valve spring. Consequently, the structure of the stopper is simplified.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：通过用于故障安全或下一次启动内燃机的简单配置，可靠地将可变气门齿轮固定并保持在期望的中间操作角度。解决方案：能够连续可变地控制操作角度的第一可变气门机构5通过致动器改变控制轴32的旋转位置来确定操作角度。一个啮合孔54形成在控制轴32的止动板51中。一个在油的供应被切断时突出的止动销55安装在气缸盖上。止动板和止动件可以预定的中间操作角度彼此接合。当系统发生故障时，止动销55突出，控制轴32临时移动到大的操作角侧，并且止动销55通过利用控制轴32的逐渐返回与接合孔54接合通过阀弹簧的反作用力向小作业角侧。因此，止动器的结构简化。版权所有（C）2009，JPO＆INPIT

4. 发明专利

JP2010203275A Cylinder block for in-line multi-cylinder internal combustion engine 有权
标题翻译：用于直列式多缸内燃机的气缸组
公开(公告)号：JP2010203275A
公开(公告)日：2010-09-16
申请号：JP2009047712
申请日：2009-03-02
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ARIMA KAZUKI
IPC分类号： F02F1/00 , F02F1/10 , F02F1/16
摘要： PROBLEM TO BE SOLVED: To inhibit cross sections of middle cylinders positioned between cylinders at both ends from being deformed in ellipse shapes by a thermal expansion force generated by combustion, in a cylinder block for an in-line multi-cylinder internal combustion engine. SOLUTION: In the cylinder block 1 for the internal combustion engine having the middle cylinders #2, #3 arranged between two cylinders #1, #4 positioned at both ends with respect to a direction of a crankshaft L, wall thicknesses in a direction perpendicular to the crankshaft L of the middle cylinders #2, #3 are made thicker than wall thicknesses in a direction perpendicular to the crankshaft L of the cylinders #1, #4 at both the ends. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：为了抑制位于两端的气缸之间的中间气缸的横截面由于通过燃烧产生的热膨胀力而以椭圆形变形，在用于直列多缸内燃的气缸体中发动机。解决方案：在具有布置在相对于曲轴L的方向位于两端的两个气缸＃1，＃4之间的中间气缸＃2，＃3的内燃机的气缸体1中，使中心圆筒＃2，＃3的与曲轴L垂直的方向比两端的气缸＃1，＃4的曲轴L的垂直方向的壁厚更厚。版权所有（C）2010，JPO＆INPIT

5. 发明专利

JP2008075454A Variable valve gear device of internal combustion engine 有权
标题翻译：内燃机可变阀齿轮装置
公开(公告)号：JP2008075454A
公开(公告)日：2008-04-03
申请号：JP2006252322
申请日：2006-09-19
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： ARIMA KAZUKI
IPC分类号： F01L13/00
CPC分类号： F01L13/0021 , F01L13/0026 , F01L2001/0476 , F01L2820/032
摘要： PROBLEM TO BE SOLVED: To provide a variable valve gear device having a reduced size.
SOLUTION: A control shaft of the variable valve gear device 1 includes: a journal portion 12a rotatably supported by a control shaft bearing portion 23 arranged on a main body side of an internal combustion engine; and a flange portion 24 arranged adjacently to the journal portion 12a and projecting from an outer peripheral surface of the control shaft 12 so as to restrict the control shaft 12 from moving in the axial direction thereof. The flange portion 24 is rotatably supported by a flange receiving portion 25 arranged on the main body side of the internal combustion engine. A stopper projection piece 26 for restricting a range of rotation of the control shaft 12 is formed on an outer periphery of the flange portion 24. The stopper projection piece 26 is projected outwardly in the radial direction of the control shaft. Thus, since the stopper projection piece 26 is formed on the flange portion 24, the size of the variable valve gear device 1 can be reduced as a whole and it is possible to improve the assemblability of the variable valve gar device 1.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种减小尺寸的可变气门齿轮装置。解决方案：可变气门齿轮装置1的控制轴包括：轴颈部分12a，可旋转地由设置在内燃机主体侧的控制轴支承部分23支撑; 以及与轴颈部12a相邻设置并从控制轴12的外周面突出的凸缘部24，以限制控制轴12的轴向移动。凸缘部24由布置在内燃机的主体侧的凸缘接收部25可旋转地支撑。在凸缘部24的外周形成有用于限制控制轴12的旋转范围的止动突起片26.止动突起片26沿着控制轴的径向向外突出。因此，由于止动突起片26形成在凸缘部24上，所以可变阀齿轮装置1的尺寸整体上可以减小，并且可以提高可变阀装置装置1的组装性。版权所有（C）2008，JPO＆INPIT

6. 发明专利

JP2005188285A Variable valve system of internal combustion engine, its lift adjusting device and lift adjusting method 审中-公开
标题翻译：内燃机可变阀系统及其提升装置和提升方法
公开(公告)号：JP2005188285A
公开(公告)日：2005-07-14
申请号：JP2003426621
申请日：2003-12-24
申请人： Nissan Motor Co Ltd , 日産自動車株式会社
发明人： NOHARA TSUNEYASU , AKASAKA YUZO , TOMOGANE KAZUTO , TAKAGI YUSUKE , ISODA KAZUTAKA , ARIMA KAZUKI
IPC分类号： F01L1/18 , F01L3/24 , F01L13/00 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To automate adjusting work of lift characteristics of a variable valve system 1 and to improve its precision.
SOLUTION: This internal combustion engine is furnished with the variable valve system 1 to vary the lift characteristics of intake valves of a plurality of cylinders in accordance with a change of a rotating position of a control shaft 12. The control shaft 12 is constituted by dividing itself into a plurality of control shaft divided bodies 21A, 21B in correspondence with each of the cylinders. The lift characteristics of each of the cylinders are adjusted by adjusting a rotating angle of each of the control shaft divided bodies 21A, 21B toward a standard value by rotating angle adjustment devices 25A, 25B in accordance with measured values of the lift characteristics by lift measurement devices 26A, 26B while rotating a driving shaft 2 by a driving shaft rotation device 27.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：自动调整可变气门系统1的升降特性的工作并提高其精度。解决方案：该内燃机配有可变气门系统1，以根据控制轴12的旋转位置的变化来改变多个气缸的进气门的升程特性。控制轴12是通过将其分成与每个气缸相对应的多个控制轴分隔体21A，21B构成。通过根据升程特性的测量值通过升程测量，通过旋转角度调节装置25A，25B将每个控制轴分割体21A，21B的旋转角度调整到标准值来调节每个气缸的升程特性装置26A，26B，同时通过驱动轴旋转装置27旋转驱动轴2. 版权所有（C）2005，JPO＆NCIPI

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