-
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。
-
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.
-
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.
-
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。
-
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。
-
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。
-
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。
-
8.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。
-
公开(公告)号：US20080087255A1
公开(公告)日：2008-04-17
申请号：US11907194
申请日：2007-10-10
IPC分类号： F02D15/02
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 configured to be linked to a reciprocating piston for variably adjusting a geometrical compression ratio by varying at least a top dead center position of the piston responsively to a controlled variable, a controller is configured to control the variable compression ratio mechanism depending on an engine operating condition. 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： 在采用可变压缩比机构的往复活塞式发动机中，所述可变压缩比机构被配置为连接到往复式活塞，用于通过响应于受控变量改变至少活塞的上止点位置来可变地调节几何压缩比，控制器被配置为控制 可变压缩比机构取决于发动机工作状态。 与燃烧室和活塞的每个的基础结构材料相比，燃烧室的壁面的一部分由具有较高隔热和储热性能的非金属材料形成。
-
公开(公告)号：US20070204747A1
公开(公告)日：2007-09-06
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
IPC分类号： F16J1/04
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。
-
-
-
-
-
-
-
-
-
搜索结果
50 条记录 (耗时 0.025 秒)