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公开(公告)号：US20070137606A1
公开(公告)日：2007-06-21
申请号：US11637185
申请日：2006-12-12
CPC分类号： F02B75/32 , F02B75/048 , Y10T74/2174
摘要： A piston-crank mechanism links crankpins of a crankshaft with piston pins of pistons by using a plurality of links. The piston-crank mechanism allows an upward inertia force produced near a top dead center of each piston to be smaller than a downward inertia force produced near a bottom dead center of the piston in order to reduce secondary vibration occurring during operation. In a four-cycle inline four-cylinder internal combustion engine, a total force of inertia forces exerted from adjacent cylinders to each of second and fourth crankshaft bearings becomes a downward force, which reinforces a downward force produced in response to combustion pressure. These second and fourth crankshaft bearings have a rigidity higher than the remaining crankshaft bearings.
摘要翻译： 活塞曲柄机构通过使用多个连杆将曲轴的曲柄销与活塞的活塞销连接起来。 活塞 - 曲柄机构允许在每个活塞的上止点附近产生的向上惯性力小于在活塞的下止点附近产生的向下的惯性力，以减少在操作期间发生的二次振动。 在四冲程在线四缸内燃机中，从相邻气缸施加到第二和第四曲轴轴承中的每一个的总惯性力变为向下的力，这加强了响应燃烧压力产生的向下的力。 这些第二和第四曲轴轴承的刚度比剩余的曲轴轴承高。
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公开(公告)号：US07412958B2
公开(公告)日：2008-08-19
申请号：US11637185
申请日：2006-12-12
CPC分类号： F02B75/32 , F02B75/048 , Y10T74/2174
摘要： A piston-crank mechanism links crankpins of a crankshaft with piston pins of pistons by using a plurality of links. The piston-crank mechanism allows an upward inertia force produced near a top dead center of each piston to be smaller than a downward inertia force produced near a bottom dead center of the piston in order to reduce secondary vibration occurring during operation. In a four-cycle inline four-cylinder internal combustion engine, a total force of inertia forces exerted from adjacent cylinders to each of second and fourth crankshaft bearings becomes a downward force, which reinforces a downward force produced in response to combustion pressure. These second and fourth crankshaft bearings have a rigidity higher than the remaining crankshaft bearings.
摘要翻译： 活塞曲柄机构通过使用多个连杆将曲轴的曲柄销与活塞的活塞销连接起来。 活塞曲柄机构允许在每个活塞的上止点附近产生的向上的惯性力小于在活塞的下止点附近产生的向下惯性力，以减少在操作期间发生的二次振动。 在四冲程在线四缸内燃机中，从相邻气缸施加到第二和第四曲轴轴承中的每一个的总惯性力变为向下的力，这加强了响应燃烧压力产生的向下的力。 这些第二和第四曲轴轴承的刚度比剩余的曲轴轴承高。
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公开(公告)号：US07392781B2
公开(公告)日：2008-07-01
申请号：US11713128
申请日：2007-03-02
IPC分类号： F02B75/32
CPC分类号： F02B75/32 , F02B75/048
摘要： A crankshaft mechanism is disclosed that takes advantage of component makeup and orientation to cancel out inertial force. A crankshaft of the crankshaft mechanism includes at least one counterweight that is arranged in combination with the rest of the mechanism to cancel out the inertial force particularly at a timing in front of a bottom dead center of a piston where the inertial force becomes a maximum.
摘要翻译： 公开了一种曲柄机构，其利用部件构成和取向来抵消惯性力。 曲轴机构的曲轴包括与机构的其余部分组合布置的至少一个配重，特别是在惯性力变为最大的活塞的下止点前的时刻，抵消惯性力。
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公开(公告)号：US08011343B2
公开(公告)日：2011-09-06
申请号：US12183583
申请日：2008-07-31
IPC分类号： F02B75/04
CPC分类号： F02B75/048
摘要： A multi link type piston-crank mechanism comprises an upper link that has one end pivotally connected to a piston of the engine through a piston pin, a lower link that is pivotally connected to the other end of the upper link through an upper pin and rotatably disposed on a crank pin of a crankshaft of the engine; and a control link that has a base end part swingably held by a body of the engine and a leading end pivotally connected to the lower link through a control pin. An axis of the piston pin is offset relative to an axis of the piston in thrust and counter thrust directions. When the piston comes to BDC, a part of the piston takes a position below a lower edge of a corresponding cylinder of the engine and the upper pin is offset relative to the axis of the piston pin in the same direction as a pin offset direction in which the axis of the piston pin is offset in the thrust and counter thrust directions relative to the axis of the piston.
摘要翻译： 多连杆式活塞曲柄机构包括上连杆，其一端通过活塞销枢转地连接到发动机的活塞，下连杆通过上销以可转动的方式连接到上连杆的另一端 设置在发动机的曲轴的曲柄销上; 以及控制连杆，其具有由发动机的主体可摆动地保持的基端部和通过控制销可枢转地连接到下连杆的前端。 活塞销的轴线在推力和反推力方向上相对于活塞的轴线偏移。 当活塞到达BDC时，活塞的一部分位于发动机的相应气缸的下边缘的下方，并且上销相对于活塞销的轴线在与销偏移方向相同的方向上偏移 活塞销的轴线相对于活塞的轴线在推力和反向推力方向上偏移。
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公开(公告)号：US20070204829A1
公开(公告)日：2007-09-06
申请号：US11713128
申请日：2007-03-02
CPC分类号： F02B75/32 , F02B75/048
摘要： A crankshaft mechanism is disclosed that takes advantage of component makeup and orientation to cancel out inertial force. A crankshaft of the crankshaft mechanism includes at least one counterweight that is arranged in combination with the rest of the mechanism to cancel out the inertial force particularly at a timing in front of a bottom dead center of a piston where the inertial force becomes a maximum.
摘要翻译： 公开了一种曲柄机构，其利用部件构成和取向来抵消惯性力。 曲轴机构的曲轴包括与机构的其余部分组合布置的至少一个配重，特别是在惯性力变为最大的活塞的下止点前的时刻，抵消惯性力。
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公开(公告)号：US20090031994A1
公开(公告)日：2009-02-05
申请号：US12183583
申请日：2008-07-31
IPC分类号： F02B75/04
CPC分类号： F02B75/048
摘要： A multi link type piston-crank mechanism comprises an upper link that has one end pivotally connected to a piston of the engine through a piston pin, a lower link that is pivotally connected to the other end of the upper link through an upper pin and rotatably disposed on a crank pin of a crankshaft of the engine; and a control link that has a base end part swingably held by a body of the engine and a leading end pivotally connected to the lower link through a control pin. An axis of the piston pin is offset relative to an axis of the piston in thrust and counter thrust directions. When the piston comes to BDC, a part of the piston takes a position below a lower edge of a corresponding cylinder of the engine and the upper pin is offset relative to the axis of the piston pin in the same direction as a pin offset direction in which the axis of the piston pin is offset in the thrust and counter thrust directions relative to the axis of the piston.
摘要翻译： 多连杆式活塞曲柄机构包括上连杆，其一端通过活塞销枢转地连接到发动机的活塞，下连杆通过上销以可转动的方式连接到上连杆的另一端 设置在发动机的曲轴的曲柄销上; 以及控制连杆，其具有由发动机的主体可摆动地保持的基端部和通过控制销可枢转地连接到下连杆的前端。 活塞销的轴线在推力和反推力方向上相对于活塞的轴线偏移。 当活塞到达BDC时，活塞的一部分位于发动机的相应气缸的下边缘的下方，并且上销相对于活塞销的轴线在与销偏移方向相同的方向上偏移 活塞销的轴线相对于活塞的轴线在推力和反向推力方向上偏移。
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公开(公告)号：US07191741B2
公开(公告)日：2007-03-20
申请号：US10662402
申请日：2003-09-16
申请人： Ryosuke Hiyoshi , Kenshi Ushijima , Yoshiaki Tanaka , Shunichi Aoyama , Katsuya Moteki , Naoki Takahashi
发明人： Ryosuke Hiyoshi , Kenshi Ushijima , Yoshiaki Tanaka , Shunichi Aoyama , Katsuya Moteki , Naoki Takahashi
IPC分类号： F02B75/04
CPC分类号： F16H21/32 , F02B75/048 , F16C9/04 , Y10T74/2142
摘要： A link mechanism usable for a variable compression ratio mechanism of an internal combustion engine includes first and second links pivotally connected by a pin inserted through cylindrical first and second pin boss portions of the first and second links. Each of the first and second pin boss portions includes a circumferentially extending first narrow section, and a circumferentially extending first wide section having an axial wall thickness greater than the axial wall thickness of the first narrow section. The wide sections of the first and second pin boss portions are overlapped in an region extending in the axial direction of the pin.
摘要翻译： 可用于内燃机的可变压缩比机构的连杆机构包括通过插入通过第一和第二连杆的圆柱形第一和第二销凸起部分的销枢转地连接的第一和第二连杆。 所述第一和第二销毂部分中的每一个包括周向延伸的第一窄部分，以及具有大于所述第一窄部分的轴向壁厚度的轴向壁厚的周向延伸的第一宽部分。 第一和第二销凸起部分的宽部分在沿销的轴向方向延伸的区域中重叠。
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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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公开(公告)号：US20090044782A1
公开(公告)日：2009-02-19
申请号：US12188434
申请日：2008-08-08
IPC分类号： F02B75/32
CPC分类号： F02B75/048
摘要： In an internal combustion engine, comprising: an upper link (11) connected via a piston pin (21) to a piston (32) that reciprocates within a cylinder; a lower link (12) attached to a crank pin (33b) of a crankshaft (33) to be free to rotate and connected to the upper link (11) via an upper pin (22); and a control link (13) which is connected to the lower link (12) via a control pin (23) and oscillates about an oscillation central shaft (24), the following equation is established when the piston (32) is at bottom dead center cos(θl+α)
摘要翻译： 在内燃机中，包括：经由活塞销（21）连接到在气缸内往复运动的活塞（32）的上连杆（11）; 附接到曲轴（33）的曲柄销（33b）的下连杆（12），以通过上销（22）自由旋转并连接到上连杆（11）; 以及经由控制销（23）连接到所述下连杆（12）并围绕振荡中心轴（24）振荡的控制连杆（13），当所述活塞（32）处于下死点时，建立以下等式 中心<？in-line-formula description =“In-line Formulas”end =“lead”？> cos（thetal + alpha）
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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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