公开(公告)号：US06318315B1

公开(公告)日：2001-11-20

申请号：US09363653

申请日：1999-07-30

申请人： Takeya Harada ,  Toshiki Kobayashi ,  Akira Kaburagi

发明人： Takeya Harada ,  Toshiki Kobayashi ,  Akira Kaburagi

IPC分类号： F01L134

CPC分类号： F01L13/0036 ,  F01L1/267 ,  F01L2105/00

摘要： In a valve operating system for an internal combustion engine, wherein connected and disconnected states of cam followers can be switched over from one to another to change the valve operating characteristic of an engine valve, each cam follower includes a cam follower body having a pair of support walls integrally provided thereon and arranged in parallel to sandwich a roller therebetween, and a hollow roller shaft which is fitted and supported at outer peripheries of its opposite ends in through-bores in the support walls, and which has the roller rotatably carried at its intermediate portion. A first groove is defined in an outer peripheral surface of the through-bore in one support wall to extend circumferentially of the through-bore, and a second groove is defined in an outer peripheral surface of the roller shaft at its one end corresponding to the first groove. A C-shaped resilient fastener is mounted in the first and second grooves and is capable of engaging with inner surfaces of the grooves astride them. The switching pin is slidably fitted to inner peripheral surfaces of the roller shafts of adjacent cam followers. With such arrangement, the roller shaft of the rollered cam follower can simply be fixed to the support wall of the cam follower body without caulking equipment, and a protrusion for fixing the roller shaft is not created on an outer surface of the support wall. The roller shaft is also used as a portion of a cam follower connecting mechanism.

摘要翻译： 在用于内燃机的阀操作系统中，其中凸轮从动件的连接和断开状态可以从一个切换到另一个以改变发动机气门的气门操作特性，每个凸轮从动件包括一个凸轮从动体， 支撑壁，其一体设置在其上并平行布置以夹在其间的辊;以及中空辊轴，其在其相对端的外周的外周嵌合并支撑在支撑壁中的通孔中，并且具有可旋转地承载在其上的辊 中间部分。 第一凹槽被限定在一个支撑壁中的通孔的外周表面中，以在通孔的周向延伸，并且第二凹槽限定在辊轴的外周表面中，其一端对应于 第一槽 C形弹性紧固件安装在第一和第二槽中，并且能够跨越它们与槽的内表面接合。 切换销可滑动地安装在相邻凸轮从动件的滚子轴的内周面上。 通过这样的结构，滚动凸轮从动件的滚子轴可以简单地固定在凸轮从动件主体的支撑壁上，而不需要铆接设备，并且在支撑壁的外表面上不产生用于固定滚子轴的突起。 滚轴也用作凸轮从动件连接机构的一部分。

公开(公告)号：US06712031B2

公开(公告)日：2004-03-30

申请号：US10419229

申请日：2003-04-21

申请人： Takeya Harada ,  Toshiki Kobayashi

发明人： Takeya Harada ,  Toshiki Kobayashi

IPC分类号： F01L118

CPC分类号： F01L1/185 ,  F01L1/26 ,  F01L2001/0537 ,  F01L2001/187 ,  F01L2101/00 ,  F01L2103/00 ,  F01L2105/00

摘要： There is provided a support device for a rocker arm, which is capable of suppressing deformation or wear of a washer, and greatly improving the working efficiency in assembling the washer to the rocker arm. The support device supports the rocker arm having a supported portion, for driving an engine valve of an internal combustion engine. A rocker shaft is supported between a pair of shaft holders arranged in the cylinder head, for pivotally supporting the rocker arm thereon via the supported portion. A washer has engaging pieces, and is attached to one of opposed ends of the supported portion of the rocker arm and one of the shaft holders, in a manner interposed between the opposed ends. The one of the opposed ends is formed with an annular engaging portion for having the washer engaged thereon via the engaging piece.

摘要翻译： 提供了一种用于摇臂的支撑装置，其能够抑制垫圈的变形或磨损，并且大大提高将垫圈组装到摇臂上的工作效率。 支撑装置支撑具有支撑部分的摇臂，用于驱动内燃机的发动机气门。 摇臂轴支撑在布置在气缸盖中的一对轴保持器之间，用于通过支撑部分将摇臂枢转地支撑在其上。 垫圈具有接合件，并且以插入在相对端之间的方式附接到摇臂的支撑部分的一个相对端和一个轴保持件中的一个。 相对端中的一个形成有环形接合部分，用于使垫圈通过接合件与其接合。

公开(公告)号：US06644254B2

公开(公告)日：2003-11-11

申请号：US10045050

申请日：2002-01-15

申请人： Takeya Harada ,  Toshiki Kobayashi ,  Noriyuki Yamada

发明人： Takeya Harada ,  Toshiki Kobayashi ,  Noriyuki Yamada

IPC分类号： F01L1300

CPC分类号： F01L1/267 ,  F01L1/024

摘要： A valve train for an internal combustion engine includes a rocker shaft (9) provided with an oil passage, first and second rocker arms (7, 8) having support parts (7a, 8a) provided with bores (7b, 8b) to receive the rocker shaft (9) therein so as to be supported on the rocker shaft (9) for rocking motion, and a rocker arm interlocking mechanism (10) for selectively engaging or disengaging the first and the second rocker arms (7, 8). The first rocker arm (7) is provided with a pressure chamber (33) holding a piston (30) therein, a straight connecting passage 34 connected to the pressure chamber (33) and an oil passage (35)formed in the rocker shaft (9). An open end surface (7b1) of the bore (7b) of a first support wall (7e) of the rocker arm (7) is on an axially outer side of the pressure chamber (33). The straight connecting passage (34) is inclined to the axis of the bore (7b) so that an imaginary passage (39) on an extension of the connecting passage (34) extended toward the open end surface (7b1) intersects the open end surface (7b1). The outermost side surface (7e1) of the first support wall (7e) has an inclined section inclined to the axis of the bore (7b) along the connecting passage (34).

公开(公告)号：US08434458B2

公开(公告)日：2013-05-07

申请号：US12867184

申请日：2009-02-25

申请人： Masaru Asari ,  Naoto Hirayama ,  Aritoshi Imazato ,  Kentaro Yamada ,  Takeya Harada ,  Yoshihiro Fujiyoshi

发明人： Masaru Asari ,  Naoto Hirayama ,  Aritoshi Imazato ,  Kentaro Yamada ,  Takeya Harada ,  Yoshihiro Fujiyoshi

IPC分类号： F02M37/04 ,  F01L1/02

CPC分类号： F01L1/026 ,  F01L1/02 ,  F01L1/022 ,  F01L1/181 ,  F01L1/20 ,  F01L2001/0535 ,  F01L2101/00 ,  F01L2105/00 ,  F02B67/06 ,  F02M39/00

摘要： A timing transmission mechanism (T2) in an engine is formed of a chain transmission system (C) that is formed from a drive sprocket (20) mounted on a crankshaft (4), a driven sprocket (25) mounted on a pump input shaft (24) of a high pressure fuel pump (P), and a chain (22) wound around the drive sprocket (20) and the driven sprocket (25); and a gear transmission system (G) that is formed from a drive gear (26) mounted on the pump input shaft (24) coaxially with the driven sprocket (25) and a driven gear (27) mounted on a camshaft (13b) and meshing with the drive gear (26). This enables a timing transmission mechanism to be provided that can increase the degree of freedom in layout of the high pressure fuel pump without causing any increase in the number of components, the weight, or the backlash.

摘要翻译： 发动机中的定时传动机构（T2）由安装在曲轴（4）上的驱动链轮（20）和安装在泵输入轴上的从动链轮（25）形成的链传动系统（C）形成 （P）的链条（24）和缠绕在驱动链轮（20）和从动链轮（25）周围的链条（22）。 以及齿轮传动系统（G），其由安装在与所述从动链轮（25）同轴的泵输入轴（24）上的驱动齿轮（26）和安装在凸轮轴（13b）上的从动齿轮（27）形成，以及 与驱动齿轮（26）啮合。 这使得能够提供能够增加高压燃料泵的布局的自由度而不会造成部件数量，重量或齿隙的任何增加的定时传动机构。

公开(公告)号：US20110005500A1

公开(公告)日：2011-01-13

申请号：US12867184

申请日：2009-02-25

申请人： Masaru Asari ,  Naoto Hirayama ,  Aritoshi Imazato ,  Kentaro Yamada ,  Takeya Harada ,  Yoshihiro Fujiyoshi

发明人： Masaru Asari ,  Naoto Hirayama ,  Aritoshi Imazato ,  Kentaro Yamada ,  Takeya Harada ,  Yoshihiro Fujiyoshi

IPC分类号： F02M37/06 ,  F01L1/047

CPC分类号： F01L1/026 ,  F01L1/02 ,  F01L1/022 ,  F01L1/181 ,  F01L1/20 ,  F01L2001/0535 ,  F01L2101/00 ,  F01L2105/00 ,  F02B67/06 ,  F02M39/00

摘要： A timing transmission mechanism (T2) in an engine is formed of a chain transmission system (C) that is formed from a drive sprocket (20) mounted on a crankshaft (4), a driven sprocket (25) mounted on a pump input shaft (24) of a high pressure fuel pump (P), and a chain (22) wound around the drive sprocket (20) and the driven sprocket (25); and a gear transmission system (G) that is formed from a drive gear (26) mounted on the pump input shaft (24) coaxially with the driven sprocket (25) and a driven gear (27) mounted on a camshaft (13b) and meshing with the drive gear (26). This enables a timing transmission mechanism to be provided that can increase the degree of freedom in layout of the high pressure fuel pump without causing any increase in the number of components, the weight, or the backlash.

摘要翻译： 发动机中的定时传动机构（T2）由安装在曲轴（4）上的驱动链轮（20）和安装在泵输入轴上的从动链轮（25）形成的链传动系统（C）形成 （P）的链条（24）和缠绕在驱动链轮（20）和从动链轮（25）周围的链条（22）。 以及齿轮传动系统（G），其由安装在与所述从动链轮（25）同轴的泵输入轴（24）上的驱动齿轮（26）和安装在凸轮轴（13b）上的从动齿轮（27）形成，以及 与驱动齿轮（26）啮合。 这使得能够提供能够增加高压燃料泵的布局的自由度而不会造成部件数量，重量或齿隙的任何增加的定时传动机构。

公开(公告)号：US06470841B2

公开(公告)日：2002-10-29

申请号：US09963794

申请日：2001-09-27

申请人： Atsushi Takahashi ,  Takaaki Harasaki ,  Masayasu Tajima ,  Chikara Tanaka ,  Takeya Harada ,  Noriyuki Yamada

发明人： Atsushi Takahashi ,  Takaaki Harasaki ,  Masayasu Tajima ,  Chikara Tanaka ,  Takeya Harada ,  Noriyuki Yamada

IPC分类号： F01M106

CPC分类号： F01L1/267 ,  F01L2105/00 ,  F01M9/105 ,  F01M9/107

摘要： The present invention provides a valve operating system for internal combustion engines, having a roller rolling contacting a valve operating cam, the system being provided with an oil supply passage capable of reducing a pressure loss to a low level even when a flow rate of lubricating oil entering the oil supply passage increases in accordance with a heightened engine speed, improving the lubricating ability with respect to the roller, and attaining a long lifetime of a rocker arm. This valve operating system includes a rocker arm support member provided with an oil passage in an inner portion thereof, a cam shaft provided on a valve operating cam, and a rocker arm which is provided with a roller rolling contacting the valve operating cam, and which is provided in an inner portion thereof with an oil supply passage for supplying a lubricating oil from the rocker arm support member to the roller, the sectional area of the flow passage of the oil supply passage increasing gradually from an opening thereof on the side of the roller toward an opening thereof on the side of the rocker arm support member.

摘要翻译： 本发明提供一种用于内燃机的阀操作系统，其具有与阀操作凸轮相接触的辊滚动，该系统设置有能够将压力损失降低到低水平的供油通道，即使当润滑油的流量 根据提高的发动机转速，进入供油通道增加，提高相对于辊的润滑能力，并且获得摇臂的长寿命。 该阀操作系统包括在其内部设置有油通道的摇臂支撑构件，设置在气门操作凸轮上的凸轮轴和设置有与阀操作凸轮接触的滚子的摇臂， 在其内部设置有用于将润滑油从摇臂支撑构件供给到辊的供油通道，供油通道的流路的截面积从其侧面的开口逐渐增加 在摇臂支撑构件的侧面上朝向其开口滚动。