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公开(公告)号：US07363902B2
公开(公告)日：2008-04-29
申请号：US11314080
申请日：2005-12-22
IPC分类号： F02B75/06
CPC分类号： F02B75/32 , F02B75/048
摘要： An internal combustion engine includes a piston (2) and a crankshaft (33). The crankshaft (33) includes: a journal (33A) as a rotation center; a crank pin (33B) that is located eccentrically with respect to the journal (33A) and rotates integrally with the journal (33A), the crank pin (33b) connecting the piston (2) to the crankshaft (33); and a counter weight (33C) that is located eccentrically with respect to the journal (33A) in a direction opposite to the crank pin (33) and rotates uniformly with the journal (33A). A cutout (11) through which the counter weight (33C) passes is formed in a wall (1) of a cylinder bore that accommodates the piston (2) so as to be free to move reciprocally along the wall (1). As a result, the bottom dead center position of the piston can be lowered, and the overall height of the engine can be decreased.
摘要翻译： 内燃机包括活塞（2）和曲轴（33）。 曲轴（33）包括：作为旋转中心的轴颈（33A）; 相对于轴颈（33A）偏心定位并与轴颈（33A）一体旋转的曲柄销（33B），将活塞（2）连接到曲轴（33）的曲柄销（33b） ; 以及相对于所述轴颈（33A）偏心地设置在与所述曲柄销（33）相反的方向并与所述轴颈（33A）均匀旋转的配重（33C）。 在容纳活塞（2）的气缸孔的壁（1）中形成有配重（33C）通过的切口（11），以沿着壁（1）自由地往复运动。 结果，可以降低活塞的下止点位置，并且能够减小发动机的整体高度。
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公开(公告)号：US20050103305A1
公开(公告)日：2005-05-19
申请号：US10982914
申请日：2004-11-08
CPC分类号： F02F3/00 , F02B71/04 , F02B75/048 , F16C3/06
摘要： In an internal combustion engine, a piston reciprocating in a cylinder and a crankshaft are linked with each other by a piston-crank linking mechanism. The crankshaft includes a counterweight. When the piston is located in the proximity of a bottom dead center, an outermost portion of the counterweight crosses an imaginary extension line extended from a piston pin in an axial direction of the piston pin.
摘要翻译： 在内燃机中，在气缸和曲轴中往复运动的活塞通过活塞 - 曲柄连杆机构相互连接。 曲轴包括配重。 当活塞位于下死点附近时，配重的最外部分在活塞销的轴向方向上与从活塞销延伸的假想延伸线交叉。
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13.发明授权公开(公告)号：US06684828B2
公开(公告)日：2004-02-03
申请号：US10115893
申请日：2002-04-05
IPC分类号： F02B7504
CPC分类号： F02B75/048 , F02B75/045
摘要： In a variable compression ratio mechanism for an internal combustion engine employing an upper link, a lower link, and a control link, the lower link includes a crankpin bearing portion into which a crankpin is fitted, a first connecting-pin bearing portion into which a first connecting pin for the upper link is fitted, and a second connecting-pin bearing portion into which a second connecting pin for the control link is fitted. A central connecting portion is provided to connect an axial central portion of at least one of the first and second connecting-pin bearing portions to an axial central portion of the crankpin bearing portion. The central connecting portion has an axial length L1 shorter than each of an axial length L2 of the crankpin bearing portion, an axial length L3 of the first connecting-pin bearing portion, and an axial length L4 of the second connecting-pin bearing portion.
摘要翻译： 在用于使用上连杆，下连杆和控制连杆的内燃机的可变压缩比机构中，下连杆包括曲柄销轴承部分，曲柄销装配到该曲轴销轴承部分中，第一连接销轴承部分 第一连接销用于上连杆，第二连接销轴承部分安装有用于控制连杆的第二连接销。 中心连接部分设置成将第一和第二连接销轴承部分中的至少一个的轴向中心部分连接到曲柄销轴承部分的轴向中心部分。 中心连接部分的轴向长度L1短于曲柄销轴承部分的轴向长度L2，第一连接销轴承部分的轴向长度L3和第二连接销轴承部分的轴向长度L4。
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公开(公告)号：US07290508B2
公开(公告)日：2007-11-06
申请号：US11639216
申请日：2006-12-15
IPC分类号： F02B75/04
CPC分类号： F02B75/048 , F02B75/32
摘要： A lower link for a piston crank mechanism of an internal combustion engine includes an upper section, a lower section, and a crank pin bearing section disposed between the upper section and the lower section, and mounted on a crank pin of a crank shaft. One of the upper section and the lower section is formed with a bolt inserting hole. The other of the upper section and the lower section is formed with an internal thread portion including an open end. One of the bolts passes through the bolt inserting hole, is screwed into the internal thread portion, and includes an end bared from the open end which is formed in a surface perpendicular to a bolt center axis. The other of the upper section and the lower section includes a recessed portion formed in the surface to divert a stress transmitting path.
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公开(公告)号：US20070137608A1
公开(公告)日：2007-06-21
申请号：US11639216
申请日：2006-12-15
CPC分类号： F02B75/048 , F02B75/32
摘要： A lower link for a piston crank mechanism of an internal combustion engine includes an upper section, a lower section, and a crank pin bearing section disposed between the upper section and the lower section, and mounted on a crank pin of a crank shaft. One of the upper section and the lower section is formed with a bolt inserting hole. The other of the upper section and the lower section is formed with an internal thread portion including an open end. One of the bolts passes through the bolt inserting hole, is screwed into the internal thread portion, and includes an end bared from the open end which is formed in a surface perpendicular to a bolt center axis. The other of the upper section and the lower section includes a recessed portion formed in the surface to divert a stress transmitting path.
摘要翻译： 用于内燃机的活塞曲柄机构的下连杆包括设置在上部和下部之间的上部，下部和曲柄销轴承部，并且安装在曲轴的曲柄销上。 上部和下部之一形成有螺栓插入孔。 上部和下部的另一个形成有包括开口端的内螺纹部分。 其中一个螺栓穿过螺栓插入孔，被拧入内螺纹部分，并且包括从垂直于螺栓中心轴线的表面形成的从开口端露出的端部。 上部和下部的另一个包括形成在表面中以转移应力传递路径的凹部。
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公开(公告)号：US07117838B2
公开(公告)日：2006-10-10
申请号：US10982914
申请日：2004-11-08
IPC分类号： F01B30/14
CPC分类号： F02F3/00 , F02B71/04 , F02B75/048 , F16C3/06
摘要： In an internal combustion engine, a piston reciprocating in a cylinder and a crankshaft are linked with each other by a piston-crank linking mechanism. The crankshaft includes a counterweight. When the piston is located in the proximity of a bottom dead center, an outermost portion of the counterweight crosses an imaginary extension line extended from a piston pin in an axial direction of the piston pin.
摘要翻译： 在内燃机中，在气缸和曲轴中往复运动的活塞通过活塞 - 曲柄连杆机构相互连接。 曲轴包括配重。 当活塞位于下死点附近时，配重的最外部分在活塞销的轴向方向上与从活塞销延伸的假想延伸线交叉。
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公开(公告)号：US06595186B2
公开(公告)日：2003-07-22
申请号：US10230066
申请日：2002-08-29
IPC分类号： F01L134
CPC分类号： F02D15/02 , F01L1/34 , F01L1/34406 , F01L13/0021 , F01L13/0026 , F01L2013/0073 , F02B75/048 , F02D13/0219 , F02D15/04 , F02D35/027 , F02D37/02 , F02D41/045 , F02D41/10 , F02D2041/001 , F02D2200/0411 , F02P5/152 , Y02T10/18
摘要： A control system for an internal combustion engine is provided which comprises a compression ratio control mechanism and a control unit for controlling the compression ratio control mechanism. The control unit including an acceleration parameter obtaining section for obtaining an acceleration parameter corresponding to a change of an engine speed, an acceleration determining section for determining whether the engine is in a slow or fast acceleration state on the basis of the acceleration parameter, and a control section for controlling at least one of a compression ratio change speed at which the engine compression ratio during engine acceleration is changed and a compression ratio change start time at which a change of the engine compression ratio during engine acceleration is started, on the basis of whether the engine is in a slow or fast acceleration state. A control method is also provided.
摘要翻译： 提供一种用于内燃机的控制系统，其包括压缩比控制机构和用于控制压缩比控制机构的控制单元。 控制单元包括：加速度参数获取部，用于获得与发动机转速相对应的加速度参数;加速度判定部，其基于加速度参数来判定发动机是否处于缓慢或快速加速状态;以及 用于控制发动机加速中的发动机压缩比改变的压缩比变化速度和开始发动机加速期间的发动机压缩比的变化的压缩比变化开始时间中的至少一个的控制部基于 发动机是否处于缓慢或快速加速状态。 还提供了一种控制方法。
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公开(公告)号：US20070215132A1
公开(公告)日：2007-09-20
申请号：US11717957
申请日：2007-03-14
CPC分类号： F02B75/048 , F16C9/04 , F16C11/045 , F16C2360/22
摘要： A piston crank mechanism has an upper link coupled to a piston by a piston pin, a lower link having a crankpin journal, wherein the crankpin journal is coupled to a crankpin of a crankshaft and is coupled to the upper link by an upper pin, and a control link is coupled to an eccentric cam of a control shaft that is supported by an engine block and coupled to a control pin boss by a control pin. The crankpin journal of the lower link is arranged and dimensioned relative to the upper pin such that a projection area defined by projecting the width of the upper pin along a direction line passing through a center of the piston pin and a center of the upper pin does not obscure an area defined by the crankpin during operation of the crankshaft as viewed in an axial direction of the crankpin.
摘要翻译： 活塞曲柄机构具有通过活塞销联接到活塞的上连杆，下连杆具有曲柄销轴颈，其中曲柄销轴颈联接到曲轴的曲柄销并且通过上销联接到上连杆，并且 控制链路联接到控制轴的偏心凸轮，其由发动机缸体支撑并通过控制销耦合到控制销凸台。 下连杆的曲柄销轴颈相对于上销布置和定尺寸，使得通过沿着穿过活塞销的中心的方向线和上销的中心突出上销的宽度而限定的突出区域 在曲柄销的轴向观察时，在曲轴的操作期间不会模糊由曲柄销定义的区域。
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公开(公告)号：US20060137629A1
公开(公告)日：2006-06-29
申请号：US11296256
申请日：2005-12-08
申请人： Hideaki Mizuno , Kenshi Ushijima , Katsuya Moteki , Takashi Mori
发明人： Hideaki Mizuno , Kenshi Ushijima , Katsuya Moteki , Takashi Mori
CPC分类号： F02B75/048 , F02B75/045
摘要： A lower link for an engine piston crank mechanism includes first and second half members joined by bolts to form a crankpin bearing portion. The first half member includes a first pin boss portion to connect the lower link with a first link which is one of an upper link connected with a piston and a control link having one end mounted swingably on the engine. The second half member includes a second pin boss portion to connect the lower link with a second link which is the other of the upper link and the control link, and an internally threaded portion into which one bolt is screwed. The second half member further includes a load transfer portion which is made greater in rigidity than the internally threaded portion.
摘要翻译： 用于发动机活塞曲柄机构的下连杆包括通过螺栓连接以形成曲柄销轴承部分的第一和第二半部件。 第一半构件包括第一销凸台部分，用于将下连杆与作为与活塞连接的上连杆之一的第一连杆和具有可摆动地安装在发动机上的一端的控制连杆连接。 第二半构件包括第二销凸台部分，用于将下连杆与作为上连杆和控制连杆中的另一个的第二连杆连接，以及内螺纹部分，一螺栓被拧入其中。 第二半部件还包括负载传递部分，该部分的刚度大于内螺纹部分。
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公开(公告)号：US07021269B2
公开(公告)日：2006-04-04
申请号：US10885013
申请日：2004-07-07
申请人： Naoki Takahashi , Kenshi Ushijima , Katsuya Moteki
发明人： Naoki Takahashi , Kenshi Ushijima , Katsuya Moteki
IPC分类号： F02D15/02
CPC分类号： F02B75/048 , F02B75/045
摘要： A lower link of a double link type piston crank mechanism comprises a crank pin bearing housing portion that is adapted to receive a crank pin of a crankshaft and defines a first contour, an upper pin receiving bore portion that is adapted to receive an upper pin of an upper link and defines a second contour, a control pin receiving bore portion that is adapted to receive a control pin of a control link and defines a third contour, and a given portion that has therein an internally threaded bore formed in one of upper and lower half-parts of the lower link and a bored portion formed in the other of the upper and lower half-parts of the lower link, the given portion defining a fourth contour. The upper and lower half-parts are coupled by a bolt that passes through the bored portion and is engaged with the internally threaded bore. The lower link has further radially projected portions that extend radially outward beyond an imaginary minimum reference contour that is provided by connecting outer edge portions of the first, second, third and fourth contours with a continuous line.
摘要翻译： 双连杆式活塞曲柄机构的下连杆包括曲柄销轴承壳体部分，其适于容纳曲轴的曲柄销并限定第一轮廓;上销接收孔部分，适于接收上销销 上连杆并且限定第二轮廓，控制销接收孔部分，其适于接收控制链节的控制销并且限定第三轮廓;以及给定部分，其中具有形成在上部和 下连杆的下半部和形成在下连杆的上半部和下半部中的另一个中的钻孔部分，给定部分限定第四轮廓。 上半部分和下半部分通过穿过钻孔部分并与内螺纹孔接合的螺栓联接。 下连杆具有径向向外延伸超过假想的最小参考轮廓的径向突出部分，该假想最小基准轮廓通过连接第一，第二，第三和第四轮廓的外缘部分与连续线而提供。
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