发明名称 |
PISTON HAVING COMBUSTION BOWL AND ENGINE USING SAME |
摘要 |
A piston for balancing combustion efficiency and smoke generation with NOx production includes a combustion face forming a combustion bowl having a compound curvature increased in sharpness in a radially outward direction. An outer bowl surface defines a large radius of curvature adjacent an inner bowl surface, and a medium radius of curvature adjacent a cylindrical wall surface. The inner bowl, outer bowl, and wall surfaces together contour the combustion bowl, such that a diameter of the combustion bowl is about 124 mm so as to establish a bowl to bore ratio of about 0.71 in a direct injection compression ignition engine with a compression ratio of about 15:1 to 17:1. |
申请公布号 |
EP2997245(A4) |
申请公布日期 |
2016.12.28 |
申请号 |
EP20140797255 |
申请日期 |
2014.05.01 |
申请人 |
Caterpillar Inc. |
发明人 |
NESS, Aaron;COULIER, Scott;KAMMERDIENER, Thomas;KILKENNY, Jonathan |
分类号 |
F02F3/26;F02F3/28;F02M61/14 |
主分类号 |
F02F3/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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