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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：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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4.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：US06877463B2
公开(公告)日：2005-04-12
申请号：US10409093
申请日：2003-04-09
CPC分类号： F02B75/048 , F02B75/045
摘要： A link mechanism of an engine includes: an upper link having a first end connected to a piston pin of a piston; a lower link connected to the upper link via an upper pin having a center, the lower link being connected to a crank pin of a crank shaft; a control shaft extending substantially in parallel with the crank shaft, the control shaft having a rotational center; and a control link including: a first end swingably connected to the control shaft, and a second end connected to the lower link. In a process of the center of the upper pin moving nearer to the axial line of the piston pin, the center of the control pin moves in the upward direction, thus inclining the lower link and allowing the center of the upper pin and the center of the piston pin to move in the downward direction.
摘要翻译： 发动机的连杆机构包括：上连杆，其具有连接到活塞的活塞销的第一端; 下连杆经由具有中心的上销连接到上连杆，下连杆连接到曲轴的曲柄销; 所述控制轴基本上平行于所述曲轴延伸，所述控制轴具有旋转中心; 以及控制连杆，包括：可摆动地连接到所述控制轴的第一端和连接到所述下部连杆的第二端。 在上销的中心更靠近活塞销的轴线的过程中，控制销的中心向上移动，从而使下连杆倾斜，并允许上销的中心和 活塞销向下移动。
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公开(公告)号：US06732682B2
公开(公告)日：2004-05-11
申请号：US10079588
申请日：2002-02-22
IPC分类号： F02D1300
CPC分类号： F02D13/023 , F01L1/34 , F01L13/0026 , F01L2013/0073 , F01L2800/00 , F02B41/04 , F02B75/048 , F02D13/0238 , F02D13/0269 , F02D15/00 , F02D37/02 , F02D2041/001 , F02P5/045 , F02P5/1506 , Y02T10/142 , Y02T10/46
摘要： A control system for an internal combustion engine is provided. The engine includes a compression ratio control mechanism and an ignition timing control system. The control system comprises an engine control for controlling the compression ratio control mechanism and the ignition timing control system so that when the engine is cold, the ignition timing is retarded largely from an MBT point and the compression ratio is set higher than that obtained when the engine is cold and operated at corresponding engine rpm and engine load. A method for controlling such an internal combustion engine is also provided.
摘要翻译： 提供一种用于内燃机的控制系统。 发动机包括压缩比控制机构和点火正时控制系统。 控制系统包括用于控制压缩比控制机构和点火正时控制系统的发动机控制，使得当发动机冷时，点火正时大大地从MBT点延迟，并且压缩比被设定为高于当 发动机冷却并在相应的发动机转速和发动机负荷下运转。 还提供了一种用于控制这种内燃机的方法。
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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：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：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：US07594467B2
公开(公告)日：2009-09-29
申请号：US11680468
申请日：2007-02-28
申请人： Shunichi Aoyama , Kenshi Ushijima , Katsuya Moteki
发明人： Shunichi Aoyama , Kenshi Ushijima , Katsuya Moteki
CPC分类号： F16J1/006 , F16J1/04 , Y10T29/49272
摘要： An internal combustion engine includes a piston adapted to reciprocate in a cylinder. The piston includes a first portion, a second portion, and a third portion. The first portion of the piston forms a crown surface of the piston, the second portion of the piston forms a piston ring groove of the piston with the piston ring groove arranged and configured to receive a piston ring, and the third portion of the piston forms a crankcase side surface of the piston with the crankcase side surface facing a crankcase of the engine. The second portion of the piston is formed of a material having a higher thermal conductivity than a material forming the first portion of the piston and a material forming a third portion of the piston.
摘要翻译： 内燃机包括适于在气缸中往复运动的活塞。 活塞包括第一部分，第二部分和第三部分。 活塞的第一部分形成活塞的冠面，活塞的第二部分形成活塞的活塞环槽，活塞环槽布置并构造成容纳活塞环，活塞的第三部分形成 活塞的曲轴箱侧表面，曲轴箱侧表面面向发动机的曲轴箱。 活塞的第二部分由具有比形成活塞的第一部分的材料更高的热导率的材料和形成活塞的第三部分的材料形成。
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