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1. 发明授权

US06644171B2 Variable compression connecting rod 有权
公开(公告)号：US06644171B2
公开(公告)日：2003-11-11
申请号：US09682682
申请日：2001-10-05
申请人： Joshua Putman Styron , Pravin Sashidharan , V. Durga Nageswar Rao , Yash Andrew Imai
发明人： Joshua Putman Styron , Pravin Sashidharan , V. Durga Nageswar Rao , Yash Andrew Imai
IPC分类号： F01B3114
CPC分类号： F02B75/045 , F02D15/02 , F16C7/06
摘要： A connecting rod assembly is provided for varying a compression ratio of an internal combustion engine having a crankshaft and a piston. The connecting rod assembly includes a first portion adapted to be connected to the crankshaft, and a second portion adapted to be connected to the piston and movable with respect to the first portion. The connecting rod assembly further includes a locking mechanism disposed between the first and second portions. The locking mechanism includes a rotatable locking element that is configured to lock the second portion at a first position relative to the first portion. Furthermore, the first position corresponds to a first compression ratio of the engine.

2. 发明授权

US06668768B2 Variable compression ratio engine 有权
标题翻译：可变压缩比发动机
公开(公告)号：US06668768B2
公开(公告)日：2003-12-30
申请号：US10003355
申请日：2001-11-15
申请人： Joshua Putman Styron , Pravin Sashidharan , V. Durga Nageswar Rao , Yash Andrew Imai
发明人： Joshua Putman Styron , Pravin Sashidharan , V. Durga Nageswar Rao , Yash Andrew Imai
IPC分类号： F02B7502
CPC分类号： F02B75/045 , F02D15/02
摘要： A connecting rod assembly is provided for varying a compression ratio of an internal combustion engine having a crankshaft and a piston. The assembly includes a first portion adapted to be connected to the crankshaft and having a cylindrical aperture. The assembly further includes a second portion adapted to be connected to the piston and movable with respect to the first portion. In addition, the assembly includes a locking element having a cylindrical portion that is disposed at least partially in the cylindrical aperture. The locking element is movable between an unlocked position and a locked position for locking the second portion at a first position relative to the first portion, wherein the first position corresponds to a first compression ratio of the engine.
摘要翻译：提供连杆组件以改变具有曲轴和活塞的内燃机的压缩比。组件包括适于连接到曲轴并具有圆柱形孔的第一部分。组件还包括适于连接到活塞并可相对于第一部分移动的第二部分。另外，组件包括具有至少部分地布置在圆柱形孔中的圆柱形部分的锁定元件。锁定元件可在解锁位置和锁定位置之间移动，用于将第二部分相对于第一部分锁定在第一位置，其中第一位置对应于发动机的第一压缩比。

3. 发明授权

US06394047B1 Connecting rod for a variable compression engine 失效
标题翻译：用于可变压缩发动机的连杆
公开(公告)号：US06394047B1
公开(公告)日：2002-05-28
申请号：US09682263
申请日：2001-08-10
申请人： V. Durga Nageswar Rao , Yash Andrew Imai , Michael Zaitz , Pravin Sashidharan , Daniel James Baraszu
发明人： V. Durga Nageswar Rao , Yash Andrew Imai , Michael Zaitz , Pravin Sashidharan , Daniel James Baraszu
IPC分类号： G05G100
CPC分类号： F16C9/04 , F02B75/045 , F16C7/06 , F16C2360/22
摘要： A variable length connecting rod 13 for changing a compression ratio of an engine is provided. The connecting rod 13 includes a first locking assembly 36 for locking the connecting rod 13 in a first effective length setting corresponding to a high compression ratio. The connecting rod 13 further includes a second locking assembly 38 for releasably locking the connecting rod 13 in a second effective length setting corresponding to a low compression ratio. When a length change is initiated, hydraulic fluid unlocks one of the locking assemblies 36, 38, allowing inertial force to effect the length change during an engine cycle. At completion of a length change, the other locking assembly 36, 38 automatically locks. The locking assemblies 36, 38 are self-contained units that are assembled to a bearing retainer 24.
摘要翻译：提供了用于改变发动机的压缩比的可变长度的连杆13。连杆13包括用于将连杆13锁定在对应于高压缩比的第一有效长度设置中的第一锁定组件36。连杆13还包括第二锁定组件38，用于将连杆13可释放地锁定在对应于低压缩比的第二有效长度设置中。当开始长度变化时，液压流体解锁锁定组件36,38中的一个，允许惯性力在发动机循环期间实现长度变化。在完成长度改变时，另一个锁定组件36,38自动锁定。锁定组件36,38是组装到轴承保持器24的独立单元。

4. 发明授权

US06705255B2 Crankshaft for use with a variable compression ratio system 有权
标题翻译：用于可变压缩比系统的曲轴
公开(公告)号：US06705255B2
公开(公告)日：2004-03-16
申请号：US10064250
申请日：2002-06-25
申请人： George Aristidis Papaioannou , Jeffrey Eliot Chottiner , Joshua Putnam Styron , Pravin Sashidharan , V. Durga Nageswar Rao , Yash Andrew Imai
发明人： George Aristidis Papaioannou , Jeffrey Eliot Chottiner , Joshua Putnam Styron , Pravin Sashidharan , V. Durga Nageswar Rao , Yash Andrew Imai
IPC分类号： F02D1500
CPC分类号： F16C7/06 , F02B75/04 , F02B75/045 , F16C9/04 , F16C23/06 , F16C2360/22
摘要： A crankshaft, for use with a variable compression ratio engine having a connecting rod and a rod bearing, includes a crankpin adapted to be coupled to the connecting rod with the rod bearing disposed between the crankpin and the connecting rod. The crankpin includes a circumferential surface having first and second side surface portions and a main surface portion disposed between the side surface portions. The main surface portion is configured to receive the rod bearing. The first side surface portion has a first aperture disposed at least partially outwardly of the rod bearing when the rod bearing is received on the main surface portion of the crankpin and the crankpin is coupled to the connecting rod. The crankpin further defines, at least partially, a first fluid passage for supplying pressurized fluid to the first aperture, such that the fluid is useable to vary compression ratio of the engine.
摘要翻译：用于具有连杆和杆轴承的可变压缩比发动机的曲轴包括曲柄销，其适于联接到连杆上，杆轴承设置在曲柄销和连杆之间。曲柄销包括具有第一和第二侧表面部分以及设置在侧表面部分之间的主表面部分的圆周表面。主表面部分构造成容纳杆轴承。当杆轴承被容纳在曲柄销的主表面部分上时，第一侧表面部分具有至少部分地设置在杆轴承的至少部分的第一孔，并且曲柄销联接到连接杆。曲柄销至少部分地限定用于将加压流体供应到第一孔的第一流体通道，使得该流体可用于改变发动机的压缩比。

5. 发明授权

US06976456B2 Connecting rod 有权
标题翻译：连杆
公开(公告)号：US06976456B2
公开(公告)日：2005-12-20
申请号：US10604104
申请日：2003-06-26
申请人： Yitzhak Isaac Henig , Jeffrey Eliot Chottiner , Jagadish Sorab , Pravin Sashidharan , Satheesh Makkapati
发明人： Yitzhak Isaac Henig , Jeffrey Eliot Chottiner , Jagadish Sorab , Pravin Sashidharan , Satheesh Makkapati
IPC分类号： F02B75/04
CPC分类号： F16C7/06 , F02B75/045
摘要： An adjustable connecting rod system includes a reliable, rapidly responsive mechanism for varying effective connecting rod length to vary the compression ratio of the engine. The mechanism may employ the momentum of connecting rod components during operation of the engine to provide actuation force to vary connecting rod length. Connecting rod length is preferably controlled by manipulation of fluid-actuated locking members. In a preferred embodiment, hydraulic pressure is applied through the use of engine oil or other hydraulic fluids. The connecting rod preferably employs one or more movable compression members such as roller members or other mechanical components that may be shifted from one position to another with relatively little friction in order to vary the effective length of the connecting rod. The movable compression members may engage surfaces of both the crankpin bearing retainer and the connecting rod body, loaded in compression to transmit forces therebetween.
摘要翻译：可调连杆系统包括一个可靠的，快速响应的机构，用于改变有效的连杆长度以改变发动机的压缩比。该机构可以在发动机操作期间使用连杆组件的动量，以提供致动力来改变连杆长度。连杆长度优选通过操纵流体驱动的锁定构件来控制。在优选实施例中，通过使用发动机油或其它液压流体施加液压。连杆优选地采用一个或多个可移动压缩构件，例如辊构件或其它机械部件，其可以以相对较小的摩擦从一个位置移动到另一个位置，以便改变连杆的有效长度。可移动压缩构件可接合曲柄销轴承保持器和连杆体的两个表面，该表面被加载成压缩以在它们之间传递力。

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