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公开(公告)号：US6158402A
公开(公告)日：2000-12-12
申请号：US161302
申请日：1998-09-28
申请人： Takashi Taguchi , Sigemi Kobayashi , Toshinari Sonoda , Atsushi Iwamoto , Hirokazu Osaki , Shigemasa Kajiwara , Shigekazu Tanaka , Kazuo Shibata , Masashi Murata , Masahiko Tashiro , Sumiko Watanabe , Kazuhisa Ishizuka
发明人： Takashi Taguchi , Sigemi Kobayashi , Toshinari Sonoda , Atsushi Iwamoto , Hirokazu Osaki , Shigemasa Kajiwara , Shigekazu Tanaka , Kazuo Shibata , Masashi Murata , Masahiko Tashiro , Sumiko Watanabe , Kazuhisa Ishizuka
CPC分类号： F16C9/02 , F02B75/221 , F02F7/0007 , F02B2075/1816 , F02B2275/20
摘要： In an engine block structure in a multi-cylinder engine in which a piston is incorporated from the side of a crank chamber into each of a plurality of cylinders disposed in series in a cylinder block, cylinder axes of the two adjacent cylinders are disposed to extend in such directions that they are gradually spaced apart from each other as proceeding from the side of a valve operating chamber toward the crank chamber as viewed from a direction of arrangement of the cylinders. Thus, a sufficient crankshaft bearing area can be ensured without bringing an increase in number of parts and an increase in size of the engine block.
摘要翻译： 在多缸发动机的发动机缸体结构中，活塞从曲轴室侧并入设置在气缸体中的多个气缸中的每一个中，两个相邻气缸的气缸轴线被设置为延伸 在从气缸的排列方向观察时，从阀操作室侧向曲柄室方向逐渐间隔开的方向。 因此，可以确保足够的曲轴轴承面积，而不会增加零件数量和增加发动机缸体的尺寸。
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公开(公告)号：US5901679A
公开(公告)日：1999-05-11
申请号：US951732
申请日：1997-10-16
申请人： Shigekazu Tanaka , Takashi Taguchi , Shigemasa Kajiwara , Masashi Murata , Atsushi Iwamoto , Toshinari Sonoda , Masahiko Tashiro , Yasuyuki Kimura , Kaoru Aoki , Mitsuo Takashima
发明人： Shigekazu Tanaka , Takashi Taguchi , Shigemasa Kajiwara , Masashi Murata , Atsushi Iwamoto , Toshinari Sonoda , Masahiko Tashiro , Yasuyuki Kimura , Kaoru Aoki , Mitsuo Takashima
CPC分类号： F02F7/0053 , F01M11/0004 , F02B2275/20 , F02F2007/0063 , F02F2200/06 , F05C2201/021 , F05C2201/0439
摘要： In an engine for a vehicle including a bearing cap integral type oil pan which has a plurality of bearing cap sections integrally provided thereon and which is integrally coupled to a cylinder block, connecting bolts are screwed into the bearing cap sections from the cylinder block to integrally couple the cylinder block and the oil pan to each other. An oil pan chamber, which is an as-cast bore made by drawing a die in an axial direction of a crankshaft, is defined to extend continuously in the axial direction of the crankshaft between the bearing cap sections and a bottom wall of the oil pan. Thus, the oil pan can be produced simply, at a low cost, by a casting process and moreover, it is possible to reduce the weight and size of the oil pan and increase the rigidity of the oil pan.
摘要翻译： 在一种用于车辆的发动机中，包括具有一体地设置在其上的多个轴承盖部分的轴承盖一体式油盘，并且其一体地联接到气缸体，连接螺栓从气缸体螺纹连接到轴承盖部分中以一体地 将气缸体和油盘相互连接。 油盘室是通过在曲轴的轴向上拉模而制成的铸造孔，被定义为在轴承盖部分和油盘的底壁之间在曲轴的轴向方向上连续地延伸 。 因此，油底壳可以通过铸造方法简单地以低成本制造，并且还可以减小油盘的重量和尺寸并增加油盘的刚性。
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公开(公告)号：US5845614A
公开(公告)日：1998-12-08
申请号：US972241
申请日：1997-11-18
CPC分类号： F01L1/267 , F01L2105/02
摘要： A valve operating system includes a connection switch-over device provided in a plurality of cam followers. The connection switch-over device has a piston moved in response to a change in hydraulic pressure in a hydraulic pressure chamber. A roller shaft is disposed on at least one of the cam followers and has a roller carried thereon to come into rolling contact with a valve operating cam. In this valve operating system, the hydraulic pressure chamber and a communication passage, which permits an oil supply passage to communicate with the hydraulic pressure chamber, are defined in a particular one of all the cam followers, which moves a smallest amount when the connection switch-over device is in its disconnecting state. The roller shaft, having the roller rotatably carried thereon, is mounted on the cam follower other than the particular one cam follower. Thus, it is possible to avoid an increase in size of the particular one cam follower, and avoid a complicated assembling operation and passage construction. Moreover, the valve operating load is reduced to a minimum by using the roller.
摘要翻译： 阀操作系统包括设置在多个凸轮从动件中的连接切换装置。 连接切换装置具有响应于液压室中的液压变化而移动的活塞。 辊轴设置在至少一个凸轮从动件上，并具有一个承载在其上以与阀操作凸轮滚动接触的辊。 在该阀操作系统中，液压压力室和允许供油通道与液压室连通的连通通道被限定在所有凸轮从动件中的特定的一个中，当连接开关 -over设备处于断开状态。 具有可旋转地承载在其上的辊的辊轴安装在除特定的一个凸轮从动件之外的凸轮从动件上。 因此，可以避免特定的一个凸轮从动件的尺寸的增加，并且避免复杂的组装操作和通道构造。 此外，通过使用辊将阀的操作负荷降低到最小。
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公开(公告)号：US6016779A
公开(公告)日：2000-01-25
申请号：US921255
申请日：1997-08-29
申请人： Hirotomi Nemoto , Shigekazu Tanaka , Shigemasa Kajiwara , Katsuaki Shiiki , Takeshi Gomi , Tetsuya Ishiguro
发明人： Hirotomi Nemoto , Shigekazu Tanaka , Shigemasa Kajiwara , Katsuaki Shiiki , Takeshi Gomi , Tetsuya Ishiguro
CPC分类号： F01L1/267 , F01L1/12 , F01L1/18 , F01L13/0015
摘要： A valve operating system in an internal combustion engine is disclosed, wherein the operational characteristic of an engine valve which is an intake valve or an exhaust valve, can be changed in accordance with the operational state of the engine. In the valve operating system, a power transmitting means comprises an inner wheel, an outer wheel surrounding the inner wheel, and a carrier on which a planetary rotor is rotatably carried. The inner wheel is operatively connected to a cam shaft, and the outer wheel is connected to the engine valve. A rotational-amount control device is connected to the carrier for controlling the rotational amount of the carrier in accordance with the operational state of the engine. Thus, the size of the valve operating system can be reduced, and moreover, the operational characteristics of the engine valve can be finely changed.
摘要翻译： 公开了一种内燃机中的阀操作系统，其中可以根据发动机的运转状态改变作为进气门或排气阀的发动机气门的动作特性。 在阀操作系统中，动力传递装置包括内轮，围绕内轮的外轮和行星转子可旋转地承载在其上的托架。 内轮可操作地连接到凸轮轴，外轮连接到发动机气门。 旋转量控制装置连接到载体，用于根据发动机的操作状态来控制载体的旋转量。 因此，可以减小阀操作系统的尺寸，而且可以精细地改变发动机气门的操作特性。
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公开(公告)号：US4612884A
公开(公告)日：1986-09-23
申请号：US758154
申请日：1985-07-23
申请人： Yoshio Ajiki , Shigemasa Kajiwara
发明人： Yoshio Ajiki , Shigemasa Kajiwara
CPC分类号： F01L1/267 , Y10T74/2101
摘要： An internal combustion engine valve operating mechanism wherein there is a low speed cam corresponding to one intake valve or exhaust valve and having a shape designed for low speed operation as well as a high speed cam of a shape designed for high speed operation. A first rocker arm is in sliding contact with the low speed cam and abuts one intake valve or exhaust valve, a second rocker arm is in sliding contact with the high speed cam and a third rocker arm abuts the other intake valve or exhaust valve, with all three rocker arms pivotably supported by a single rocker shaft adjacent to each other. A first piston for connecting the first and second rocker arms is slidably mounted in the first rocker arm and a second piston for connecting the second and third rocker arms is slidably mounted in the second rocker arm extendable and contractable. A third piston is movably mounted in the third rocker arm and urged by a spring in a direction of abutment with the second piston. An annular engaging groove is formed in the outer surface of the first piston, and the first rocker arm is provided with a connecting and disconnection start controlling mechanisms for being engaged with or disengaged from the groove only when the first rocker arm pivots in a valve opening direction. Consequently, the rocker arm connecting and disconnecting operations are performed at the beginning of a valve closing section ensuring the proper completion of the operation.
摘要翻译： 一种内燃机气门操作机构，其中存在对应于一个进气门或排气门的低速凸轮，并具有为低速运转而设计的形状以及设计用于高速运转的形状的高速凸轮。 第一摇臂与低速凸轮滑动接触并邻接一个进气门或排气阀，第二摇臂与高速凸轮滑动接触，第三摇臂与另一个进气门或排气门相接， 所有三个摇臂由相邻的单个摇臂枢转地支撑。 用于连接第一和第二摇臂的第一活塞可滑动地安装在第一摇臂中，用于连接第二和第三摇臂的第二活塞可滑动地安装在第二摇臂中，该第二活塞可伸缩。 第三活塞可移动地安装在第三摇臂中，并通过弹簧沿与第二活塞邻接的方向推动。 在第一活塞的外表面上形成有环形接合槽，并且第一摇臂设置有仅当第一摇臂在阀开口中枢转时与槽接合或脱离槽的连接和断开启动控制机构 方向。 因此，在闭阀部分的开始执行摇臂连接和断开操作，确保操作的正确完成。
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公开(公告)号：USRE33310E
公开(公告)日：1990-08-28
申请号：US248995
申请日：1988-09-23
申请人： Yoshio Ajiki , Shigemasa Kajiwara
发明人： Yoshio Ajiki , Shigemasa Kajiwara
CPC分类号： F01L1/267 , Y10T74/2101
摘要： An internal combustion engine valve operating mechanism wherein there is a low speed cam corresponding to one intake valve or exhaust valve and having a shape designed for low speed operation as well as a high speed cam of a shape designed for high speed operation. A first rocker arm is in sliding contact with the low speed cam and abuts one intake valve or exhaust valve, a second rocker arm is in sliding contact with the high speed cam and a third rocker arm abuts the other intake valve or exhaust valve, with all three rocker arms pivotably supported by a single rocker shaft adjacent to each other. A first piston for connecting the first and second rocker arms is slidably mounted in the first rocker arm and a second piston for connecting the second and third rocker arms is slidably mounted in the second rocker arm extendable and contractable. A third piston is movably mounted in the third rocker arm and urged by a spring in a direction of abutment with the second piston. An annular engaging groove is formed in the outer surface of the first piston, and the first rocker arm is provided with a connecting and disconnection start controlling mechanisms for being engaged with or disengaged from the groove only when the first rocker arm pivots in a valve opening direction. Consequently, the rocker arm connecting and disconnecting operations are performed at the beginning of a valve closing section ensuring the proper completion of the operation.
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公开(公告)号：US4656977A
公开(公告)日：1987-04-14
申请号：US758153
申请日：1985-07-23
CPC分类号： F01L1/267 , F01L13/0063
摘要： A valve operating mechanism for an internal combustion engine having a pair of intake valves or exhaust valves in each cylinder with a first and a second rocker arm corresponding to the pair of valves and a cam for pivoting the first rocker arm. The rocker arms are provided with a connecting mechanism having a piston assembly which is movable between a position in which both said rocker arms are connected and a position in which both said rocker arms are disconnected from each other whereby either both valves of the pair or only one valve may be selectively actuated. A trigger member in the first rocker arm selectively restricts the movement of the piston and a timing cam engages and actuates the trigger member.
摘要翻译： 一种用于内燃机的气门操作机构，其具有在每个气缸中的一对进气门或排气门，其中第一和第二摇臂对应于该对阀，以及用于枢转第一摇臂的凸轮。 摇臂设置有连接机构，该连接机构具有活塞组件，该活塞组件可在两个所述摇臂连接的位置和两个所述摇臂彼此分离的位置之间移动， 可以选择性地致动一个阀。 第一摇臂中的触发构件选择性地限制活塞的移动，并且定时凸轮接合并致动触发构件。
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公开(公告)号：US6085707A
公开(公告)日：2000-07-11
申请号：US085168
申请日：1998-05-28
CPC分类号： F01L1/267 , F01L13/0015 , F01L2800/00 , F01L2800/11
摘要： In a valve operating system in an internal combustion engine, the operational characteristic of an engine valve which is an intake valve or an exhaust valve can be changed in accordance with the operational state of the engine, the reduction in size thereof can achieved and moreover, the operational characteristic of the engine valve can be finely changed, and the lifted state of the engine valve can be detected simply. A power transmitting device is formed of an inner wheel, an outer wheel and a carrier which rotatably carries a planetary rotor. Among these components forming the power transmitting device, a first component is operatively connected to a cam shaft, and a second component is connected to an engine valve. A rotational amount control device connected to a third component, controls the amount of rotation of the third component in accordance with the operational state of the engine. A first discharge bore is provided in a support shaft supporting the inner wheel and leads to an oil passage, and a second discharge bore provided in the inner wheel, communicates with the first discharge bore. The area of communication of the second discharge bore with the first discharge bore can be changed with a change in the amount of relative angular displacement of the inner wheel relative to the support shaft.
摘要翻译： 在内燃机的气门操作系统中，可以根据发动机的运转状态来改变作为进气门或排气门的发动机气门的动作特性，能够实现减小的尺寸， 可以精细地改变发动机气门的操作特性，并且可以简单地检测发动机气门的提升状态。 动力传递装置由可旋转地承载行星转子的内轮，外轮和托架形成。 在形成动力传递装置的这些部件中，第一部件可操作地连接到凸轮轴，并且第二部件连接到发动机气门。 连接到第三部件的旋转量控制装置根据发动机的操作状态来控制第三部件的旋转量。 第一排放孔设置在支撑内轮并且通向油路的支撑轴中，并且设置在内轮中的第二排出孔与第一排出孔连通。 随着内轮相对于支撑轴的相对角位移量的变化，可以改变第二排出孔与第一排出孔的连通区域。
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公开(公告)号：US5515820A
公开(公告)日：1996-05-14
申请号：US343214
申请日：1994-11-22
申请人： Chihaya Sugimoto , Masakazu Kinoshita , Izumi Sugiyama , Hideki Saito , Shigemasa Kajiwara , Susumu Toki
发明人： Chihaya Sugimoto , Masakazu Kinoshita , Izumi Sugiyama , Hideki Saito , Shigemasa Kajiwara , Susumu Toki
CPC分类号： F01L1/267 , F02B2275/18
摘要： A valve operating mechanism for an internal combustion engine for varying the operation of the valve dependent on engine operating conditions. A first rocker arm movable to follow a first cam and a second rocker arm movable to follow a second cam corresponding to a higher speed operating condition than that of the first cam are pivotally supported on a rocker arm shaft. A first connection switching device capable of switching the connection and disconnection between the third and first rocker arms and a second switching device capable of switching the connection and disconnection between at least one of the first and third rocker arms and the second rocker arm independently from the first connection switching device, are disposed at locations displaced circumferentially relative to the rocker arm shaft. Thus, it is possible to dispose a trigger mechanism and to dispose3 roller followers coaxially with the connection switching device, while avoiding the increase in width of the three rocker arms along their swinging axes.
摘要翻译： 用于内燃机的阀操作机构，用于根据发动机工作条件改变阀的操作。 可移动以跟随第一凸轮的第一摇臂和可移动以跟随对应于比第一凸轮的更高速度操作状态的第二凸轮的第二摇臂枢转地支撑在摇臂轴上。 一种能够切换第三和第一摇臂之间的连接和断开的第一连接切换装置和能够切换第一和第三摇臂和第二摇臂中的至少一个之间的连接和断开的第二开关装置， 第一连接切换装置设置在相对于摇臂轴沿周向偏移的位置处。 因此，可以设置触发机构并配置与连接切换装置同轴的3个滚子从动装置，同时避免三个摇臂沿其摆动轴线的宽度增加。
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公开(公告)号：US5388552A
公开(公告)日：1995-02-14
申请号：US121992
申请日：1993-09-15
申请人： Chihaya Sugimoto , Masakazu Kinoshita , Izumi Sugiyama , Hideki Saito , Shigemasa Kajiwara , Susumu Toki
发明人： Chihaya Sugimoto , Masakazu Kinoshita , Izumi Sugiyama , Hideki Saito , Shigemasa Kajiwara , Susumu Toki
CPC分类号： F01L1/267 , F02B2275/18
摘要： A valve operating mechanism for an internal combustion engine for varying the operation of the valve dependent on engine operating conditions. A first rocker arm movable to follow a first cam and a second rocker arm movable to follow a second cam corresponding to a higher speed operating condition than that of the first cam are pivotally supported on a rocker arm shaft. A first connection switching device capable of switching the connection and disconnection between the third and first rocker arms and a second switching device capable of switching the connection and disconnection between at least one of the first and third rocker arms and the second rocker arm independently from the first connection switching device, are disposed at locations displaced circumferentially relative to the rocker arm shaft. Thus, it is possible to dispose a trigger mechanism and to dispose roller followers coaxially with the connection switching device, while avoiding the increase in width of the three rocker arms along their swinging axes.
摘要翻译： 用于内燃机的阀操作机构，用于根据发动机工作条件改变阀的操作。 可移动以跟随第一凸轮的第一摇臂和可移动以跟随对应于比第一凸轮的更高速度操作状态的第二凸轮的第二摇臂枢转地支撑在摇臂轴上。 一种能够切换第三和第一摇臂之间的连接和断开的第一连接切换装置和能够切换第一和第三摇臂和第二摇臂中的至少一个之间的连接和断开的第二开关装置， 第一连接切换装置设置在相对于摇臂轴沿周向偏移的位置处。 因此，可以避免触发机构和与连接切换装置同轴地配置滚子从动装置，同时避免三个摇臂沿其摆动轴线的宽度增加。
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