-
公开(公告)号：US07228838B2
公开(公告)日：2007-06-12
申请号：US11313683
申请日：2005-12-22
IPC分类号： F02B75/32
CPC分类号： F02B41/04 , F02B75/048
摘要： An internal combustion engine includes a piston reciprocating in a cylinder; a crankshaft; and a multilink piston-crank mechanism linking the piston with the crankshaft. The multilink piston-crank mechanism includes an upper link having a first end connected with the piston by a piston pin; a lower link mounted rotatably on a crankpin of the crankshaft and having a first end connected with a second end of the upper link by a first connection pin; a control link having a first end connected with a second end of the lower link by a second connection pin; a control shaft connected movably with a second end of the control link and configured to rotate in synchronization with the crankshaft and at a half rotational speed of the crankshaft; and a phase adjusting section configured to variably adjust a phase of rotation of the control shaft relative to the crankshaft in accordance with an operating condition of the engine. The multilink piston-crank mechanism is configured to variably control a piston stroke characteristic of the engine.
摘要翻译： 内燃机包括在气缸中往复运动的活塞; 曲轴; 以及将活塞与曲轴连接的多链路活塞曲柄机构。 多链节活塞曲柄机构包括：上连杆，其具有通过活塞销与活塞连接的第一端; 下连杆可旋转地安装在曲轴的曲柄销上，并且具有通过第一连接销与上连杆的第二端连接的第一端; 控制链路，其具有通过第二连接销与所述下连杆的第二端连接的第一端; 所述控制轴与所述控制连杆的第二端可移动地连接并且构造成与所述曲轴同步地旋转并且在所述曲轴的半转速下旋转; 以及相位调整部，其被配置为根据发动机的运行状态可变地调节控制轴相对于曲轴的旋转相位。 多链路活塞 - 曲柄机构构造成可变地控制发动机的活塞冲程特性。
-
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：US5988125A
公开(公告)日：1999-11-23
申请号：US130490
申请日：1998-08-07
申请人： Seinosuke Hara , Yoshihiko Yamada , Keisuke Takeda , Tsutomu Hibi , Akira Ohnuki , Shunichi Aoyama , Makoto Nakamura , Shinichi Takemura , Tetsuro Goto , Katsuya Moteki , Tsuneyasu Nohara
发明人： Seinosuke Hara , Yoshihiko Yamada , Keisuke Takeda , Tsutomu Hibi , Akira Ohnuki , Shunichi Aoyama , Makoto Nakamura , Shinichi Takemura , Tetsuro Goto , Katsuya Moteki , Tsuneyasu Nohara
CPC分类号： F01L1/34 , F01L2013/0073
摘要： A variable valve actuation (VVA) apparatus comprises an eccentric rotary (ER) cam fixed to a driving shaft for rotation therewith, a pivotal valve operating (VO) cam, a rocker arm having a first arm and a second arm, a control rod having an eccentric control cam, and a crank arm. The eccentric control cam supports the rocker arm for pivotal motion. The crank arm interconnects the ER cam and the first arm of the rocker arm. A link interconnects the second arm of the rocker arm and the VO cam.
摘要翻译： 可变气门致动（VVA）装置包括固定到驱动轴以与其一起旋转的偏心旋转（ER）凸轮，枢转阀操作（VO）凸轮，具有第一臂和第二臂的摇臂，具有 偏心控制凸轮和曲柄臂。 偏心控制凸轮支撑摇臂作枢轴运动。 曲柄臂将ER凸轮和摇臂的第一臂相互连接。 链路将摇臂的第二臂和VO凸轮相互连接。
-
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：US20060137632A1
公开(公告)日：2006-06-29
申请号：US11313683
申请日：2005-12-22
IPC分类号： F02B75/04
CPC分类号： F02B41/04 , F02B75/048
摘要： An internal combustion engine includes a piston reciprocating in a cylinder; a crankshaft; and a multilink piston-crank mechanism linking the piston with the crankshaft. The multilink piston-crank mechanism includes an upper link having a first end connected with the piston by a piston pin; a lower link mounted rotatably on a crankpin of the crankshaft and having a first end connected with a second end of the upper link by a first connection pin; a control link having a first end connected with a second end of the lower link by a second connection pin; a control shaft connected movably with a second end of the control link and configured to rotate in synchronization with the crankshaft and at a half rotational speed of the crankshaft; and a phase adjusting section configured to variably adjust a phase of rotation of the control shaft relative to the crankshaft in accordance with an operating condition of the engine. The multilink piston-crank mechanism is configured to variably control a piston stroke characteristic of the engine.
摘要翻译： 内燃机包括在气缸中往复运动的活塞; 曲轴; 以及将活塞与曲轴连接的多链路活塞曲柄机构。 多链节活塞曲柄机构包括：上连杆，其具有通过活塞销与活塞连接的第一端; 下连杆可旋转地安装在曲轴的曲柄销上，并且具有通过第一连接销与上连杆的第二端连接的第一端; 控制链路，其具有通过第二连接销与所述下连杆的第二端连接的第一端; 所述控制轴与所述控制连杆的第二端可移动地连接并且构造成与所述曲轴同步地旋转并且在所述曲轴的半转速下旋转; 以及相位调整部，其被配置为根据发动机的运行状态可变地调节控制轴相对于曲轴的旋转相位。 多链路活塞 - 曲柄机构构造成可变地控制发动机的活塞冲程特性。
-
公开(公告)号：US06684833B2
公开(公告)日：2004-02-03
申请号：US10372975
申请日：2003-02-26
IPC分类号： F01L134
CPC分类号： F01L13/0026 , F01L13/0021 , F01L2105/00
摘要： A swing cam to actuate engine valves is rotatably disposed about a drive shaft. A first eccentric cam is tightly disposed on the drive shaft. A ring-link is rotatably disposed on the first eccentric cam. A second eccentric cam is tightly disposed on a control shaft which rotates to a given angular position in accordance with an operation condition of an associated internal combustion engine. A rocker arm is rotatably disposed on the second eccentric cam. A rod-link extends between the rocker arm and the swing cam. A first connecting pin pivotally connects a first arm portion of the rocker arm with the ring-link. A second connecting pin pivotally connects a second arm portion of the rocker arm with an end of the rod-link. A third connecting pin pivotally connects the other end of the rod-link with the swing cam. The first connecting pin is fixed to either one of the first arm portion of the rocker arm and the ring-link.
摘要翻译： 驱动发动机气门的摆动凸轮围绕驱动轴可旋转地设置。 第一偏心凸轮紧紧地设置在驱动轴上。 环形连杆可旋转地设置在第一偏心凸轮上。 第二偏心凸轮紧紧地设置在控制轴上，该控制轴根据相关联的内燃机的操作状态旋转到给定的角度位置。 摇臂可旋转地设置在第二偏心凸轮上。 杆连杆在摇臂和摆动凸轮之间延伸。 第一连接销将摇臂的第一臂部与环形连杆枢转地连接。 第二连接销将摇臂的第二臂部分与杆连杆的端部枢转地连接。 第三连接销将杆连杆的另一端与摆动凸轮枢转连接。 第一连接销固定在摇臂的第一臂部和环形连杆中的任一个上。
-
公开(公告)号：US20060180118A1
公开(公告)日：2006-08-17
申请号：US11354532
申请日：2006-02-15
CPC分类号： F02B75/048 , F02B75/32 , F02D15/02 , F02D41/009 , F02D41/2474
摘要： A variable compression ratio mechanism that changes the compression ratio according to the rotation angle of a control shaft, wherein a stopper is provided at the highest compression ratio side for regulating the rotation of said control shaft. Then, the output detected by a compression ratio sensor for detecting the rotation angle of said control shaft when said stopper is in an abutted state is read and an adjustment value is learned in order to revise the sensor output based on said detected output.
摘要翻译： 一种可变压缩比机构，其根据控制轴的旋转角度改变压缩比，其中，在最高压缩比侧设置有用于调节所述控制轴的旋转的止动件。 然后，读取通过压缩比传感器检测到的输出，用于在所述止动器处于接合状态时检测所述控制轴的旋转角度，并且学习调整值以便基于所述检测输出修正传感器输出。
-
公开(公告)号：US06561148B2
公开(公告)日：2003-05-13
申请号：US09790723
申请日：2001-02-23
IPC分类号： F01L1300
CPC分类号： F01L13/0026 , F01L13/0021 , F01L2105/00
摘要： A swing cam to actuate engine valves is rotatably disposed about a drive shaft. A first eccentric cam is tightly disposed on the drive shaft. A ring-link is rotatably disposed on the first eccentric cam. A second eccentric cam is tightly disposed on a control shaft which rotates to a given angular position in accordance with an operation condition of an associated internal combustion engine. A rocker arm is rotatably disposed on the second eccentric cam. A rod-link extends between the rocker arm and the swing cam. A first connecting pin pivotally connects a first arm portion of the rocker arm with the ring-link. A second connecting pin pivotally connects a second arm portion of the rocker arm with an end of the rod-link. A third connecting pin pivotally connects the other end of the rod-link with the swing cam. The first connecting pin is fixed to either one of the first arm portion of the rocker arm and the ring-link.
-
公开(公告)号：US07360513B2
公开(公告)日：2008-04-22
申请号：US11354532
申请日：2006-02-15
IPC分类号： F02D15/02
CPC分类号： F02B75/048 , F02B75/32 , F02D15/02 , F02D41/009 , F02D41/2474
摘要： A variable compression ratio mechanism that changes the compression ratio according to the rotation angle of a control shaft, wherein a stopper is provided at the highest compression ratio side for regulating the rotation of the control shaft. Then, the output detected by a compression ratio sensor for detecting the rotation angle of the control shaft when the stopper is in an abutted state is read. An adjustment value is learned in order to revise the sensor output based on the detected output.
摘要翻译： 一种可变压缩比机构，其根据控制轴的旋转角度改变压缩比，其中在最高压缩比侧设置有用于调节控制轴的旋转的止动件。 然后，读取由阻止器处于接合状态时用于检测控制轴的旋转角度的压缩比传感器检测出的输出。 学习调整值以便根据检测到的输出来修改传感器输出。
-
公开(公告)号：USRE43034E1
公开(公告)日：2011-12-20
申请号：US12951545
申请日：2010-11-22
IPC分类号： F01L1/34
CPC分类号： F01L13/0021 , F01L1/344 , F01L13/0026 , F01L2013/0073 , F01L2820/00 , F02B2031/006 , F02D13/0226 , F02F1/18 , F02F3/14 , F05C2203/08 , Y02T10/18
摘要： An engine intake control apparatus for an engine that comprises at least one combustion chamber operatively connected to an intake port and an intake valve associated with each intake port, wherein the intake valve is adapted to open and close the intake port is disclosed herein. The intake control apparatus comprises a variable valve operating mechanism and a controller. The variable valve operating mechanism is configured and arranged to selectively change a valve closing timing and a valve lift amount of the intake valve. The controller is configured and arranged to control the variable valve operating mechanism when the engine is in a low load condition. The valve closing timing is determined such that an actual compression ratio of the engine is reduced relative to the actual compression ratio when the engine is operating in a high load condition. The valve lift amount is smaller when the engine is in the low load condition relative to the valve lift amount when the engine is in the high load condition. A method for controller an engine is also disclosed.
摘要翻译： 一种用于发动机的发动机进气控制装置，其包括至少一个燃烧室，该燃烧室可操作地连接到进气口和与每个进气口相关联的进气门，其中该进气门适于打开和关闭进气口。 进气控制装置包括可变气门操作机构和控制器。 可变气门操作机构被构造和布置成选择性地改变进气门的关闭正时和气门升程量。 控制器构造和布置成在发动机处于低负载状态时控制可变气门操作机构。 确定阀关闭正时，使得当发动机在高负载状态下运行时，发动机的实际压缩比相对于实际压缩比减小。 当发动机处于高负载状态时，当发动机处于低负载状态时相对于气门升程量，气门升程量较小。 还公开了一种用于发动机控制器的方法。
-
-
-
-
-
-
-
-
-
搜索结果
99 条记录 (耗时 0.02 秒)