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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：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：US20060157016A1
公开(公告)日：2006-07-20
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：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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公开(公告)号：US07669559B2
公开(公告)日：2010-03-02
申请号：US11907194
申请日：2007-10-10
IPC分类号： F02B75/04
CPC分类号： F02D15/02 , F02B75/048 , F02D13/023 , F02D13/0269 , F05C2251/048 , Y02T10/142
摘要： In a reciprocating piston engine employing a variable compression ratio mechanism linked to a reciprocating piston for variably adjusting a geometrical compression ratio by varying at least a piston top dead center position, so that the top dead center position obtained at a low geometrical compression ratio is set to be lower than that at a high geometrical compression ratio, responsively to a controlled variable, a controller is configured to set a target compression ratio to a high value at low engine load operation, and to a relatively low value at high engine load operation. A substantially entire area of a crown of the piston, defining a part of a wall surface of a combustion chamber, is formed of a non-metallic material having a higher heat-insulating and heat-reserving property as compared to a base structural material of each of the combustion chamber and the piston.
摘要翻译： 在往复式活塞式发动机中，采用与往复运动活塞连接的可变压缩比机构，用于通过至少改变活塞上止点位置来可变地调节几何压缩比，使得以低几何压缩比获得的上止点位置被设定 低于高几何压缩比时，响应于受控变量，控制器被配置为在低发动机负载操作时将目标压缩比设定为高值，并且在高发动机负载操作下将目标压缩比设定为相对较低的值。 限定燃烧室的壁面的一部分的活塞的顶部的大致整个区域由具有比基础结构材料更高的绝热和耐热性能的非金属材料形成， 每个燃烧室和活塞。
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公开(公告)号：US06647935B2
公开(公告)日：2003-11-18
申请号：US10170683
申请日：2002-06-14
IPC分类号： F01L134
CPC分类号： F02F7/0019 , F01L1/024 , F01L1/34 , F01L13/0021 , F01L13/0026 , F01L2013/0073 , F02B75/048 , F02B2275/18 , F02F2001/245
摘要： In a rockable-cam equipped reciprocating internal combustion engine, a rockable cam is rotatably fitted on the outer periphery of an intake-valve drive shaft that is rotatable in synchronism with rotation of a crankshaft. The rockable cam oscillates within predetermined limits during rotation of the intake-valve drive shaft so as to directly push an intake-valve lifter. As viewed from an axial direction of the crankshaft, an axis of the intake-valve drive shaft is offset from a centerline of the intake-valve stem in a first direction that is normal to both the cylinder centerline and the crankshaft axis and directed from the cylinder centerline to the intake valve side. The crankshaft axis is also offset from the cylinder centerline in the first direction.
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公开(公告)号：US06615773B2
公开(公告)日：2003-09-09
申请号：US10077944
申请日：2002-02-20
IPC分类号： F02D1502
CPC分类号： F02B75/048 , F02B75/045
摘要： In an internal combustion engine of variable compression ratio type, a piston control mechanism is employed which comprises a lower link rotatably disposed on a crank pin of a crankshaft of the engine, an upper link having one end pivotally connected to the lower link and the other end pivotally connected to a piston of the engine, a control link having one end pivotally connected to the lower link; and a position changing mechanism which changes a supporting axis about which the other end of the control link turns. When the piston comes up to a top dead center, a compression load is applied to the control link in an axial direction of the control link in accordance with an upward inertial load of the piston.
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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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