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公开(公告)号：US07357104B2
公开(公告)日：2008-04-15
申请号：US11717957
申请日：2007-03-14
IPC分类号： F02B75/04
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：US07290507B2
公开(公告)日：2007-11-06
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
IPC分类号： F02B75/04
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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公开(公告)号：US20050005897A1
公开(公告)日：2005-01-13
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
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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公开(公告)号：US06920847B2
公开(公告)日：2005-07-26
申请号：US10756470
申请日：2004-01-14
CPC分类号： F02B75/048 , F02B75/045
摘要： A reciprocating engine with a variable compression ratio mechanism is disclosed. A lubrication system of the engine is improved by controlling an oil pressure according to a compression ratio setting. The lubrication system includes various combinations of control valves and oil passages. The oil relief passage is opened at a high compression ratio setting applied to a low engine load range and is otherwise closed at a low compression ratio setting applied to a high engine load range.
摘要翻译： 公开了一种具有可变压缩比机构的往复式发动机。 通过根据压缩比设定控制油压来提高发动机的润滑系统。 润滑系统包括控制阀和油通道的各种组合。 减压通道以高压缩比设置打开，施加到低发动机负载范围，否则以应用于高发动机负载范围的低压缩比设定关闭。
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公开(公告)号：US07121251B2
公开(公告)日：2006-10-17
申请号：US10924810
申请日：2004-08-25
CPC分类号： F16C11/02 , F02B75/048 , F16H21/32
摘要： A multi-link piston crank mechanism for an internal combustion engine, including a crankshaft having a crank pin, and crank webs connected with each other through the crank pin. A pair of thrust surfaces are formed on the crank webs so as to be opposed in a direction of a center axis of the crank pin. A first link pivotally supported on the crank pin is coupled to a second link through a connection pin located in a space between the thrust surfaces. The connection pin is moveable about the crank pin to form a circular trace along which the thrust surfaces extend. The end surfaces of the connection pin and the thrust surfaces come into mutual contact to prevent the connection pin from falling out of the space between the thrust surfaces.
摘要翻译： 一种用于内燃机的多连杆活塞曲柄机构，包括具有曲柄销的曲轴和通过曲柄销相互连接的曲柄腹板。 一对推力面形成在曲柄腹板上，以便在曲柄销的中心轴线的方向上相对。 枢转地支撑在曲柄销上的第一连杆通过位于推力表面之间的空间中的连接销连接到第二连杆。 连接销可围绕曲柄销移动以形成推力面延伸穿过的圆形轨迹。 连接销和推力面的端面相互接触，以防止连接销从推力面之间的空间掉出。
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公开(公告)号：US20050045120A1
公开(公告)日：2005-03-03
申请号：US10924810
申请日：2004-08-25
CPC分类号： F16C11/02 , F02B75/048 , F16H21/32
摘要： A multi-link piston crank mechanism for an internal combustion engine, including a crankshaft having a crank pin, and crank webs connected with each other through the crank pin. A pair of thrust surfaces are formed on the crank webs so as to be opposed in a direction of a center axis of the crank pin. A first link pivotally supported on the crank pin is coupled to a second link through a connection pin located in a space between the thrust surfaces. The connection pin is moveable about the crank pin to form a circular trace along which the thrust surfaces extend. The end surfaces of the connection pin and the thrust surfaces come into mutual contact to prevent the connection pin from falling out of the space between the thrust surfaces.
摘要翻译： 一种用于内燃机的多连杆活塞曲柄机构，包括具有曲柄销的曲轴和通过曲柄销相互连接的曲柄腹板。 一对推力面形成在曲柄腹板上，以便在曲柄销的中心轴线的方向上相对。 枢转地支撑在曲柄销上的第一连杆通过位于推力表面之间的空间中的连接销连接到第二连杆。 连接销可围绕曲柄销移动以形成推力面延伸穿过的圆形轨迹。 连接销和推力面的端面相互接触，以防止连接销从推力面之间的空间掉出。
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公开(公告)号：US08100098B2
公开(公告)日：2012-01-24
申请号：US12255390
申请日：2008-10-21
申请人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
发明人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
CPC分类号： F02B75/048
摘要： A multi-link engine has a piston coupled to a crankshaft to move inside an engine cylinder. A piston pin connects the piston to an upper link, which is connected to a lower link by an upper link pin. A crank pin of the crankshaft rotatably supports the lower link thereon. A control link pin connects the lower link to one end of a control link, which is connected at another end to the engine block body by a control shaft. The upper link has an upper link axis that forms an angle with the cylinder axis, as viewed along a crank axis direction of the crankshaft, such that the angle reaches a minimum when a crank angle of the engine is within a range where the bottom end of a piston skirt is positioned below a topmost part of the bottom end of the cylinder liner.
摘要翻译： 多连杆发动机具有联接到曲轴以在发动机气缸内移动的活塞。 活塞销将活塞连接到上连杆，上连杆通过上连杆销连接到下连杆。 曲轴的曲柄销可旋转地支撑其上的下连杆。 控制连杆销将下连杆连接到控制链节的另一端，控制链通过控制轴连接到发动机机体。 上部连杆具有与曲轴的曲柄轴方向观察时与气缸轴线形成角度的上连杆轴，使得当发动机的曲轴角度在下端 活塞裙部位于气缸套的底端的最上部的下方。
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公开(公告)号：US08100097B2
公开(公告)日：2012-01-24
申请号：US12255336
申请日：2008-10-21
申请人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
发明人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
IPC分类号： F02B75/04
CPC分类号： F02B75/048
摘要： A multi-link engine has a piston coupled to a crankshaft to move inside an engine cylinder. A piston pin connects the piston to an upper link, which is connected to a lower link by an upper link pin. A crank pin of the crankshaft rotatably supports the lower link thereon. A control link pin connects the lower link to one end of a control link, which is connected at another end to the engine block body by a control shaft. The crank pin has a center arranged on a straight line joining centers of the upper link pin and the control link pin such that an angle formed between the straight line and a horizontal axis that is perpendicular to a center axis of the cylinder and that passes through an axial center of a crank journal is the same for at top dead center and at bottom dead center.
摘要翻译： 多连杆发动机具有联接到曲轴以在发动机气缸内移动的活塞。 活塞销将活塞连接到上连杆，上连杆通过上连杆销连接到下连杆。 曲轴的曲柄销可旋转地支撑其上的下连杆。 控制连杆销将下连杆连接到控制链节的另一端，控制链通过控制轴连接到发动机机体。 曲柄销的中心设置在与上连杆销和控制连杆销的中心连接的直线上，使得在直线与水平轴线之间形成的角度垂直于气缸的中心轴线并穿过 曲柄轴颈的轴心在上止点和下止点处是相同的。
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公开(公告)号：US20090107453A1
公开(公告)日：2009-04-30
申请号：US12255390
申请日：2008-10-21
申请人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
发明人： Naoki Takahashi , Masayuki Tomita , Kenshi Ushijima , Koji Hiraya , Hirofumi Tsuchida , Shunichi Aoyama
IPC分类号： F02B75/32
CPC分类号： F02B75/048
摘要： A multi-link engine has a piston coupled to a crankshaft to move inside an engine cylinder. A piston pin connects the piston to an upper link, which is connected to a lower link by an upper link pin. A crank pin of the crankshaft rotatably supports the lower link thereon. A control link pin connects the lower link to one end of a control link, which is connected at another end to the engine block body by a control shaft. The upper link has an upper link axis that forms an angle with the cylinder axis, as viewed along a crank axis direction of the crankshaft, such that the angle reaches a minimum when a crank angle of the engine is within a range where the bottom end of a piston skirt is positioned below a topmost part of the bottom end of the cylinder liner.
摘要翻译： 多连杆发动机具有联接到曲轴以在发动机气缸内移动的活塞。 活塞销将活塞连接到上连杆，上连杆通过上连杆销连接到下连杆。 曲轴的曲柄销可旋转地支撑其上的下连杆。 控制连杆销将下连杆连接到控制链节的另一端，控制链通过控制轴连接到发动机机体。 上部连杆具有与曲轴的曲柄轴方向观察时与气缸轴线形成角度的上连杆轴，使得当发动机的曲轴角度在下端 活塞裙部位于气缸套的底端的最上部的下方。
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