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1. 发明授权

US06568357B1 Variable compression ratio pistons and connecting rods 失效
标题翻译：可变压缩比活塞和连杆
公开(公告)号：US06568357B1
公开(公告)日：2003-05-27
申请号：US09691286
申请日：2000-10-18
申请人： V. Durga Nageswar Rao , Daniel Joseph German , Gary Allan Vrsek , Jeffrey Eliot Chottiner , Mark Michael Madin
发明人： V. Durga Nageswar Rao , Daniel Joseph German , Gary Allan Vrsek , Jeffrey Eliot Chottiner , Mark Michael Madin
IPC分类号： F02B7504
CPC分类号： F02B75/045 , F16C7/04 , F16C7/06 , F16C2360/22 , F16J1/14
摘要： Various embodiments (20; 50; 50; 120) of variable length piston and connecting rod assemblies for imparting a variable compression ratio to an internal combustion engine. The embodiments incorporate novel arrangements of relatively movable parts (32, 34; 60, 62; 84, 86; 124, 126) related by various elastomeric elements (38; 58; 96, 104; 136) and oil passages (42; 116, 118; 140, 142) to change compression ratios.
摘要翻译：用于向内燃机施加可变压缩比的可变长度活塞和连杆组件的各种实施例（20; 50; 50; 120）。这些实施例结合了由各种弹性元件（38; 58; 96,104; 136）和油路（42; 116; 136）相关联的相对可移动部件（32,34; 60,62; 84,86; 124,126） 118; 140,142）以改变压缩比。

2. 发明授权

US06371062B1 Variable compression ratio connecting rods 失效
标题翻译：可变压缩比连杆
公开(公告)号：US06371062B1
公开(公告)日：2002-04-16
申请号：US09691668
申请日：2000-10-18
申请人： V. Durga Nageswar Rao , Daniel Joseph German , Gary Allan Vrsek , Jeffrey Eliot Chottiner , Mark Michael Madin
发明人： V. Durga Nageswar Rao , Daniel Joseph German , Gary Allan Vrsek , Jeffrey Eliot Chottiner , Mark Michael Madin
IPC分类号： F02B7504
CPC分类号： F02B75/045
摘要： A variable length connecting rod assembly for imparting a variable compression ratio to an internal combustion engine. The assembly contains a first part (22; 72), a second part (20; 74), and a third part (34; 70) assembled together to form the large end of the connecting rod assembly and provide a variable length for the connecting rod assembly. The first part is a semi-circular cap. One (20; 74) of the second and third parts is fastened tight to the first part (22; 72). Guides (36, 38, 48; 88, 90, 92) disposed at opposite sides of the large end operatively relate the other (34; 70) of the second and third parts and the fastened parts to provide for relative sliding motion between the other of the second and third parts and the fastened parts over a limited adjustment range to change the length of the connecting rod assembly.
摘要翻译：一种用于向内燃机施加可变压缩比的可变长度连杆组件。组件包括第一部分（22; 72），第二部分（20; 74）和组装在一起以形成连杆组件的大端部并且为连接提供可变长度的第三部分（34; 70）杆总成。第一部分是半圆形帽。第二和第三部分的一个（20; 74）紧紧地紧固到第一部分（22; 72）上。设置在大端的相对侧的导轨（36,38,48; 88,90,92）可操作地将第二和第三部分的另一个（34; 70）和紧固部件相关联，以提供另一个的第二和第三部分和紧固部件在有限的调节范围内以改变连杆组件的长度。

3. 发明授权

US5695199A Piston sealing assembly 失效
标题翻译：活塞密封总成
公开(公告)号：US5695199A
公开(公告)日：1997-12-09
申请号：US213335
申请日：1994-03-14
申请人： V. Durga Nageswar Rao , Daniel Michael Kabat , Daniel Joseph German
发明人： V. Durga Nageswar Rao , Daniel Michael Kabat , Daniel Joseph German
IPC分类号： F16J9/20 , F16J9/22
CPC分类号： F16J9/20
摘要： A sealing assembly that significantly reduces or eliminates blow-by, peristolic pumping and sealing element flutter while, at the same time, reducing to ultra low levels friction between the sealing element and its assembly. The assembly has surfaces in at least one of the bore wall or piston to form a groove facing the other of the wall or piston, the groove having exposed smoothly curved shoulders which face each other. A sealing element is positioned in the groove, the element having smoothly curved side surfaces mateable with the groove shoulders for supporting the element in the groove. The sealing element has an exposed outer surface (crown) which also is smoothly curved with a pair of mirror image shoulders, The crown is effective to tangentially contact the cylinder wall while the element side surfaces each tangentially contact their respective mating groove shoulders. The pair of mating groove shoulders and element side walls each have defined curvatures which are effective to maintain the tangency and transfer any load from the sealing element (resulting from contact between the element crown and the cylinder wall contact) to the groove shoulders in a substantially equal manner regardless of articulation of the element in the groove. The curvature of the groove shoulders side surfaces and crown surfaces all adhere to a tractrix relationship.
摘要翻译：一种密封组件，其显着地减少或消除窜气，绕组泵送和密封元件的振动，同时减少到密封元件及其组件之间的超低水平摩擦。组件在孔壁或活塞中的至少一个中具有表面以形成面向壁或活塞中的另一个的凹槽，凹槽具有彼此面对的平滑平滑的凸起的肩部。密封元件位于凹槽中，该元件具有平滑弯曲的侧表面，与沟槽肩部配合，用于将元件支撑在凹槽中。密封元件具有暴露的外表面（冠），该外表面（冠）也通过一对镜像肩部平滑地弯曲。冠部有效地切向地接触气缸壁，同时元件侧表面每个切向接触它们各自的配合凹槽肩部。一对配合凹槽肩部和元件侧壁各自具有限定的曲率，其有效地保持切向并将任何来自密封元件的负载（由元件表冠和气缸壁接触之间的接触产生）传递到凹槽肩部，基本上不管元件在凹槽中的连接如何，均等。沟槽肩部侧面和表面表面的曲率全部贴合在一起。

4. 发明授权

US06167856A Low friction cam shaft 失效
标题翻译：低摩擦凸轮轴
公开(公告)号：US06167856A
公开(公告)日：2001-01-02
申请号：US08115974
申请日：1993-09-03
申请人： Vemulapalli Durga N. Rao , Harry Arthur Cikanek , Daniel Joseph German , Daniel Michael Kabat
发明人： Vemulapalli Durga N. Rao , Harry Arthur Cikanek , Daniel Joseph German , Daniel Michael Kabat
IPC分类号： F01L116
CPC分类号： C10M111/04 , C10M2201/00 , C10M2201/003 , C10M2201/0403 , C10M2201/041 , C10M2201/0413 , C10M2201/042 , C10M2201/0423 , C10M2201/0433 , C10M2201/05 , C10M2201/053 , C10M2201/0603 , C10M2201/061 , C10M2201/0613 , C10M2201/0623 , C10M2201/0653 , C10M2201/066 , C10M2201/0663 , C10M2201/08 , C10M2201/0803 , C10M2201/081 , C10M2201/082 , C10M2201/084 , C10M2201/0853 , C10M2201/0863 , C10M2201/0873 , C10M2201/1006 , C10M2201/1023 , C10M2201/1033 , C10M2201/1053 , C10M2201/123 , C10M2201/16 , C10M2201/18 , C10M2217/0403 , C10M2217/0415 , C10M2217/042 , C10M2217/0425 , C10M2217/043 , C10M2217/0435 , C10M2217/0443 , C10M2217/0453 , C10M2217/0465 , C10N2240/02 , C23C4/00 , C23C4/18 , F01L1/042 , F01L1/047 , F01L1/0532 , F01L1/08 , F01L1/143 , F01L1/16 , F01L1/20 , F01L3/04 , F01L3/08 , F01L3/22 , F01L2001/0475 , F02B2275/18 , Y10T74/2107
摘要： A low friction cam shaft for actuating at least one valve of an internal combustion engine includes a shaft member extending longitudinally, at least one cam secured to the shaft member, the cam being made of a plurality of density metal materials and having an outer surface impregnated with a solid film lubricant that has an affinity for oil and promotes rapid formation of a stable oil film to reduce friction therebetween.
摘要翻译：用于致动内燃机的至少一个阀的低摩擦凸轮轴包括纵向延伸的轴构件，固定到轴构件的至少一个凸轮，凸轮由多个密度金属材料制成并具有外表面浸渍具有对油具有亲和性的固体膜润滑剂，促进稳定的油膜的快速形成，以减少它们之间的摩擦。

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