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1. 发明申请

US20120234285A1 PISTON FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：内燃机活塞
公开(公告)号：US20120234285A1
公开(公告)日：2012-09-20
申请号：US13422992
申请日：2012-03-16
申请人： Rishikesh VENUGOPAL , Donald W. STANTON , Bhargav RANGANATH , Thomas GEYER
发明人： Rishikesh VENUGOPAL , Donald W. STANTON , Bhargav RANGANATH , Thomas GEYER
IPC分类号： F02F3/28
CPC分类号： F02B23/0669 , F02B23/0651 , F02B23/0693 , F02B23/0696 , F02B2275/14 , Y02T10/125
摘要： A piston and an engine are provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of combustion chamber features. More particularly, configuration parameters for a piston crown and a piston bowl located within the piston crown are provided. The piston bowl configuration results in a combustion process that yields decreased heat transfer to a cylinder head of the internal combustion engine as well as reduced NOx emissions.
摘要翻译：提供了一种活塞和发动机，其包括各种精确的配置参数，包括燃烧室特征的尺寸，形状和/或相对定位。更具体地，提供了位于活塞冠内的活塞冠和活塞碗的配置参数。活塞碗结构导致燃烧过程，其产生对内燃机的气缸盖的热传递减少以及减少的NOx排放。

2. 发明申请

US20130167806A1 PISTON AND COMBUSTION CHAMBER 有权
标题翻译：活塞和燃烧室
公开(公告)号：US20130167806A1
公开(公告)日：2013-07-04
申请号：US13339039
申请日：2011-12-28
申请人： Rishikesh VENUGOPAL , John M. DEUR , Jason W. MACKEY
发明人： Rishikesh VENUGOPAL , John M. DEUR , Jason W. MACKEY
IPC分类号： F02F3/26 , F02M61/14
CPC分类号： F02B23/101 , F02M61/14 , Y02T10/125
摘要： A piston and an engine are provided that includes various precise configuration parameters, including dimensions, shape and/or relative positioning of the combustion chamber features, resulting in a combustion process that yields improved mixing of fuel and intake air and increased uniformity of load on the engine pistons. The piston provides a piston bowl with a concave curvilinear portion that may be semi-spherical and extends inwardly to a depth; an angled surface extends inwardly from the crown surface to intersect the concave curvilinear portion at an edge at a depth; and a curved surface that extends inwardly from the crown surface to intersect the concave curvilinear portion at a tangent at a depth. The angled surface may be part of a frusto-conical surface that may extend from both sides of the angled surface to an area proximate the curved surface.
摘要翻译：提供了一种活塞和发动机，其包括各种精确的构造参数，包括燃烧室特征的尺寸，形状和/或相对定位，导致燃烧过程，其产生改进的燃料和进气的混合以及在发动机活塞。活塞提供具有凹形曲线部分的活塞碗，其可以是半球形的并且向内延伸到一个深度; 倾斜表面从冠表面向内延伸，以在深度的边缘处与凹曲线部分相交; 以及弯曲表面，其从冠表面向内延伸以在深度处切线处与凹曲线部分相交。成角度的表面可以是截头圆锥形表面的一部分，其可以从成角度表面的两侧延伸到靠近弯曲表面的区域。

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