公开(公告)号：US08413623B2

公开(公告)日：2013-04-09

申请号：US12586225

申请日：2009-09-18

申请人： Yoshihiro Takada ,  Katsuhiro Kubo ,  Yuichi Tawarada ,  Masahiro Nakashima ,  Hiroyuki Natsui

发明人： Yoshihiro Takada ,  Katsuhiro Kubo ,  Yuichi Tawarada ,  Masahiro Nakashima ,  Hiroyuki Natsui

IPC分类号： F01L1/34

CPC分类号： F01L1/185 ,  F01L13/0036

摘要： An internal combustion engine is equipped with a variable valve control system which is operable to selectively actuate an engine valve using one of two cams of a camshaft, by sliding a rocker arm in the axial direction of a rocker-arm shaft. The system is capable of restricting the axial-direction movement of the rocker arm within a predetermined range, using a simple structure without unduly increasing the number of component parts. Position-restriction portions are formed in a rocker arm, and abut on a trigger arm to restrict sliding movement of the rocker arm within a predetermined amount, when the trigger arm is disengaged from the rocker arm.

摘要翻译： 内燃机配备有可变气门控制系统，其可操作以通过在摇臂轴的轴向方向上滑动摇臂来选择性地使用凸轮轴的两个凸轮中的一个来致动发动机气门。 该系统能够使用简单的结构将摇臂的轴向移动限制在预定范围内，而不会不适当地增加部件的数量。 位置限制部分形成在摇臂中，并且当触发臂与摇臂分离时，与摇臂相接触，以将摇臂的滑动运动限制在预定量内。

公开(公告)号：US20090056650A1

公开(公告)日：2009-03-05

申请号：US12228252

申请日：2008-08-11

申请人： Yuichi Tawarada ,  Masashi Furuya ,  Yoshihiro Tajima

发明人： Yuichi Tawarada ,  Masashi Furuya ,  Yoshihiro Tajima

IPC分类号： F01P5/10

CPC分类号： F28D9/0012 ,  F28D9/0043 ,  F28D2021/0089 ,  F28F9/0246

摘要： In an oil cooler, a heat exchange core is housed in a casing including a cylindrical sidewall part in a way that a cooling water passage is formed around a heat exchange core. The heat exchange core includes inlet-side and outlet-side oil passages, and enables oil to be delivered from the inlet-side oil passage to the outlet-side oil passage. Inlet and outlet pipes are connected to the sidewall part. The inlet pipe forms a cooling water inlet passage in communication with the cooling water passage. The outlet pipe forms a cooling water outlet passage in communication with the cooling water passage. Outward of the inlet-side oil passage, an outwardly swelling part is formed in the sidewall part of the casing. This arrangement avoids the oil cooler being constructed in a large size and avoids decreasing the heat exchange efficiency of the oil cooler, and also prevents cavitation and erosion from occurring due to the flow of cooling water in an area corresponding to the inlet-side oil passage.

摘要翻译： 在油冷却器中，热交换芯容纳在包括圆筒形侧壁部分的壳体中，其方式是在热交换芯周围形成冷却水通道。 换热芯包括入口侧和出口侧油路，能够将油从入口侧油路输送到出口侧油路。 入口和出口管连接到侧壁部分。 入口管形成与冷却水通道连通的冷却水入口通道。 出口管形成与冷却水通道连通的冷却水出口通道。 在入口侧油路的外侧，在壳体的侧壁部形成有向外的隆起部。 这种布置避免了油冷却器构造成大尺寸并避免降低油冷却器的热交换效率，并且还防止由于在与入口侧油路对应的区域中的冷却水的流动而发生气蚀和侵蚀 。

公开(公告)号：US20080011280A1

公开(公告)日：2008-01-17

申请号：US11823362

申请日：2007-06-27

申请人： Yuichi Tawarada ,  Takuya Yamasaki ,  Masashi Furuya

发明人： Yuichi Tawarada ,  Takuya Yamasaki ,  Masashi Furuya

IPC分类号： F02B25/06

CPC分类号： F02M35/104 ,  F02F7/006 ,  F02M35/10222

摘要： A breather apparatus for an internal combustion engine which, when casting a cylinder head cover, can improve the fluidity of molten metal and promote gas-liquid separation through effective use of an entire breather chamber. A breather apparatus for an internal combustion engine has a cylinder head cover in which a breather chamber is formed. In the breather chamber, a number of ribs extend from a side wall included in a peripheral wall of the chamber obliquely relative to a direction in which blowby gas flows in through inflow ports. The ribs extend up to where they are continuous with respective fixing bosses. The ribs include projecting lower edge portions which are partly cut out, forming respective concave portions.

摘要翻译： 一种用于内燃机的通气装置，当铸造气缸盖罩时，可以通过有效地使用整个通气室来改善熔融金属的流动性并促进气液分离。 用于内燃机的通气装置具有其中形成有通气室的气缸盖罩。 在通气室中，多个肋从包围在室的周壁的侧壁相对于窜气通过入口流入的方向倾斜地延伸。 肋条延伸到与相应的固定凸台连续的位置。 这些肋包括部分切出的突出的下边缘部分，形成相应的凹部。

公开(公告)号：US07267095B2

公开(公告)日：2007-09-11

申请号：US11527697

申请日：2006-09-27

申请人： Isamu Takahashi ,  Yuichi Tawarada

发明人： Isamu Takahashi ,  Yuichi Tawarada

IPC分类号： F01M1/02 ,  F01P5/10 ,  F02B61/04

CPC分类号： F02B67/06 ,  F02B61/02 ,  F02B2275/08 ,  F02F7/0073 ,  F02F2007/0078

摘要： An internal combustion engine in a power unit includes an oil pump that rotates by a transmission mechanism with an endless chain, and a crankcase with an opening formed by protruding walls of side walls of the crankcase in an axial direction. A drive sprocket is fitted to a main shaft of a gear transmission and a driven sprocket is fitted to a shaft end of a drive shaft of an oil pump. When viewed sideways, the protruding walls and mating faces have overlapping parts that partially overlap the driven sprocket. On the other hand, all the shaft end and the remainder of the driven sprocket are exposed inside the opening when the cover is removed. The resulting configuration improves the working efficiency in fitting an oil pump into the crankcase without reducing the rigidity of the crankcase.

摘要翻译： 动力单元中的内燃机包括由具有环形链的传动机构旋转的油泵，以及具有沿轴向由曲轴箱的侧壁的突出壁形成的开口的曲轴箱。 驱动链轮安装在齿轮传动装置的主轴上，从动链轮装配到油泵驱动轴的轴端。 当侧面观察时，突出的壁和配合面具有与从动链轮部分重叠的重叠部分。 另一方面，当盖子被移除时，所有轴端和从动链轮的剩余部分都暴露在开口内部。 所得到的结构提高了将油泵装配到曲轴箱中的工作效率，而不降低曲轴箱的刚度。

公开(公告)号：US20060144352A1

公开(公告)日：2006-07-06

申请号：US11315251

申请日：2005-12-23

申请人： Yuichi Tawarada ,  Isamu Takahashi

发明人： Yuichi Tawarada ,  Isamu Takahashi

IPC分类号： F01P1/04

CPC分类号： F01P3/08 ,  F01M1/08 ,  F01M11/02 ,  F01P11/04 ,  F01P2050/16

摘要： A cooling structure is a separate member from a structural portion of an engine. An oil injection pipe includes cooling oil injection holes for injecting cooling oil into cylinder bores and is mounted across an engine at a somewhat upper position with respect to a crank shaft and in parallel with the crank shaft. Both ends of the oil injection pipe are fixed through mounting members to right and left side walls of the engine, whereby the pipe is mounted. Two left and right pipe portions are joined together at a central position between the two to constitute the oil injection pipe as a single pipe. At the connection in the central position, the oil injection pipe is connected to an oil supply path. Oil supplied through the oil supply path flows into the left and right pipe portions and is injected from the injection holes into the cylinder bores.

摘要翻译： 冷却结构是与发动机结构部分不同的部件。 注油管包括用于将冷却油喷射到气缸孔中的冷却油喷射孔，并且相对于曲轴并与曲轴平行地安装在发动机相对于发动机的较高位置。 注油管的两端通过安装构件固定在发动机的右侧壁和左侧壁上，由此安装管。 两个左右管部分在两者之间的中心位置处接合在一起，以构成作为单管的注油管。 在中心位置的连接处，注油管连接到供油路径。 通过供油路供给的油流入左，右管部，从喷孔向气缸孔内喷出。

公开(公告)号：US20120252616A1

公开(公告)日：2012-10-04

申请号：US13425482

申请日：2012-03-21

申请人： Yuichi TAWARADA ,  Yoshiaki TSUKADA ,  Osamu EMIZU

发明人： Yuichi TAWARADA ,  Yoshiaki TSUKADA ,  Osamu EMIZU

IPC分类号： F16H7/08 ,  F16K15/00

CPC分类号： F16H7/0848 ,  F15B21/044 ,  F16H2007/0806 ,  F16H2007/0814 ,  F16H2007/0817 ,  F16H2007/0859 ,  Y10T137/7837

摘要： An air bleeding valve includes an annular valve element for removing air from oil contained in a hydraulic circuit of a hydraulic tensioner and for suppressing the removal of the oil. An air bleeding valve body is fitted in an air bleeding valve accommodating hole formed in the hydraulic tensioner. A circumferential groove having a rectangular cross section is formed on an outer circumferential surface of the air bleeding valve body. The annular valve element having a rectangular cross section is fitted in the circumferential groove so as to be movable in an axial direction parallel to the axis of the annular valve element, and displaceable in a radial direction toward and away from the axis of the annular valve element. Such air bleeding valve removes air in a hydraulic circuit while suppressing the removal of oil in the hydraulic circuit during starting operation of an engine.

摘要翻译： 排气阀包括用于从包含在液压张紧器的液压回路中的油中除去空气并且用于抑制油的除去的环形阀元件。 排气阀体装配在形成在液压张紧器中的排气阀容纳孔中。 在排气阀体的外周面上形成具有矩形截面的周向槽。 具有矩形横截面的环形阀元件装配在周向槽中，以能够在平行于环形阀元件的轴线的轴向方向上移动，并且可沿径向朝向和远离环形阀的轴线移动 元件。 这样的排气阀在发动机起动时抑制液压回路中的油的除去而去除液压回路中的空气。

公开(公告)号：US07975662B2

公开(公告)日：2011-07-12

申请号：US12586229

申请日：2009-09-18

申请人： Masahiro Nakashima ,  Yoshihiro Takada ,  Yuichi Tawarada ,  Takuya Warashina

发明人： Masahiro Nakashima ,  Yoshihiro Takada ,  Yuichi Tawarada ,  Takuya Warashina

IPC分类号： F01L1/34

CPC分类号： F01L13/0036 ,  F01L1/02 ,  F01L1/053 ,  F01L1/267 ,  F01L2001/34446 ,  Y10T74/20882 ,  Y10T74/2107

摘要： An internal combustion engine is equipped with a variable valve controlling system, in which the single actuator is disposed in a cylinder head on one side where one ends of the rocker-arm shafts are disposed, while enabling the single actuator to activate the rocker arms irrespective of the arrangement of the rocker-arm shafts. In the internal combustion engine, a hydraulic cylinder of a hydraulic actuator is disposed so as to transverse a timing chamber. Operation elements extend respectively from sidewalls of a plunger in the hydraulic cylinder, and activate respective rocker-arm shafts. In a motorcycle on which the engine is mounted, a frame member of a vehicle frame is disposed outside the hydraulic actuator.

摘要翻译： 内燃机配备有可变气门控制系统，其中单个致动器设置在一侧的气缸盖中，一侧设置摇臂轴的一端，同时使单个致动器能够激活摇臂，而不管 的摇臂轴的布置。 在内燃机中，液压致动器的液压缸设置成横向定时室。 操作元件分别从液压缸中的柱塞的侧壁延伸，并且激活相应的摇臂轴。 在其上安装有发动机的摩托车中，车架的框架构件设置在液压致动器的外部。

公开(公告)号：US20100077978A1

公开(公告)日：2010-04-01

申请号：US12586229

申请日：2009-09-18

申请人： Masahiro Nakashima ,  Yoshihiro Takada ,  Yuichi Tawarada ,  Takuya Warashina

发明人： Masahiro Nakashima ,  Yoshihiro Takada ,  Yuichi Tawarada ,  Takuya Warashina

IPC分类号： F01L1/34 ,  F01L1/18

CPC分类号： F01L13/0036 ,  F01L1/02 ,  F01L1/053 ,  F01L1/267 ,  F01L2001/34446 ,  Y10T74/20882 ,  Y10T74/2107

摘要： An internal combustion engine is equipped with a variable valve controlling system, in which the single actuator is disposed in a cylinder head on one side where one ends of the rocker-arm shafts are disposed, while enabling the single actuator to activate the rocker arms irrespective of the arrangement of the rocker-arm shafts. In the internal combustion engine, a hydraulic cylinder of a hydraulic actuator is disposed so as to transverse a timing chamber. Operation elements extend respectively from sidewalls of a plunger in the hydraulic cylinder, and activate respective rocker-arm shafts. In a motorcycle on which the engine is mounted, a frame member of a vehicle frame is disposed outside the hydraulic actuator.

摘要翻译： 内燃机配备有可变气门控制系统，其中单个致动器设置在一侧的气缸盖中，一侧设置摇臂轴的一端，同时使单个致动器能够激活摇臂，而不管 的摇臂轴的布置。 在内燃机中，液压致动器的液压缸设置成横向定时室。 操作元件分别从液压缸中的柱塞的侧壁延伸，并且激活相应的摇臂轴。 在其上安装有发动机的摩托车中，车架的框架构件设置在液压致动器的外部。

公开(公告)号：US07624713B2

公开(公告)日：2009-12-01

申请号：US11821690

申请日：2007-06-25

申请人： Yuichi Tawarada ,  Tsuyoshi Arima

发明人： Yuichi Tawarada ,  Tsuyoshi Arima

IPC分类号： F01M1/02 ,  G01F23/02

CPC分类号： G01F23/02

摘要： A crankcase having a mounting structure configured to receive an oil level sight glass fitted on a lower outer portion of the crankcase in a through hole formed therein, and a retainer member clamped to an outer surface of the crankcase to prevent the oil level sight glass from falling off. An outwardly protrudingly rib is formed on the outer portion of the crankcase which is engaged with a cut formed on the retainer member to securely position the retainer member on the crankcase. The retainer member includes a scale mark provided thereon, and the oil level sight glass permits visual observation for checking an oil level of oil held in an oil reservoir disposed at the lower portion of the crankcase.

摘要翻译： 一种具有安装结构的曲轴箱，其构造成在形成在其中的通孔中容纳安装在曲轴箱的下部外部的油位观察窗，以及夹持在曲轴箱外表面上的保持构件，以防止油位观察窗 脱落 在曲轴箱的外部形成向外突出的肋，该曲轴箱与形成在保持器构件上的切口接合，以将保持构件牢固地定位在曲轴箱上。 保持器构件包括设置在其上的刻度标记，并且油位观察窗允许目视观察以检查保持在设置在曲轴箱下部的储油器中的油的油位。

公开(公告)号：US20060213478A1

公开(公告)日：2006-09-28

申请号：US11387663

申请日：2006-03-23

申请人： Yuichi Tawarada ,  Hiroyuki Kawakubo

发明人： Yuichi Tawarada ,  Hiroyuki Kawakubo

IPC分类号： F02B75/32

CPC分类号： F16H57/02 ,  F02B61/02 ,  F02B61/06 ,  F16H63/18 ,  F16H2057/0203 ,  F16H2057/02065 ,  F16H2057/02091 ,  F16H2057/02095 ,  Y10T74/19223 ,  Y10T74/19251 ,  Y10T74/19279

摘要： A transmission structure of a power unit for a vehicle includes a clutch mechanism that is provided between a crankshaft and a main shaft, and is installed at the end of the main shaft outside a crankcase. The transmission includes a shift drum for driving shift forks for selectively establishing any of plural speeds. Both ends in an axial direction of the shift drum are rotatably supported by the crankcase. In the transmission structure, a sealed structure dedicated to the shift drum is not required, the number of parts is reduced and the assembly time is reduced. The shift drum, arranged in the maximum outside diameter of the clutch mechanism when viewed in a plane perpendicular to the axis of the main shaft, is assembled in the crankcase from the side of the clutch mechanism.

摘要翻译： 用于车辆的动力单元的传动结构包括设置在曲轴和主轴之间的离合器机构，并且安装在主轴外部的曲轴箱的端部。 变速器包括用于驱动换档叉的换档鼓，用于选择性地建立多个速度的任何一个。 变速鼓的轴向的两端由曲轴箱可旋转地支撑。 在传动结构中，不需要专门用于换档鼓的密封结构，部件数量减少，组装时间减少。 当从垂直于主轴的轴线的平面中观察时，配置在离合器机构的最大外径上的换档鼓从离合器机构的一侧组装在曲轴箱中。