公开(公告)号：US08056531B2

公开(公告)日：2011-11-15

申请号：US12822296

申请日：2010-06-24

申请人： Zheng Xu ,  Jianwen James Yi ,  Steven Wooldridge ,  David Bruce Reiche ,  Neal James Corey ,  Stephen George Russ ,  Steven Paul Penkevich ,  Claudia Olivia Lyer

发明人： Zheng Xu ,  Jianwen James Yi ,  Steven Wooldridge ,  David Bruce Reiche ,  Neal James Corey ,  Stephen George Russ ,  Steven Paul Penkevich ,  Claudia Olivia Lyer

IPC分类号： F02B5/00 ,  F02F3/00

CPC分类号： F02B23/104 ,  F02B2023/103 ,  F02B2075/125 ,  F02D13/0207 ,  F02D13/0219 ,  F02M61/1806 ,  F02M69/045 ,  Y02T10/123 ,  Y02T10/125 ,  Y10T29/49249

摘要： A combustion system for a direct-injection, spark-ignition engine is disclosed. A side-mounted fuel injector located outboard the intake valves directs multiple fuel jets into a shallow, spherical bowl formed in a domed piston. Both good mixing to facilitate good air utilization with early injection and an ignitable mixture at the spark plug with late injection to facilitate cold start are provided with such a combustion system. Because the bowl is smooth and shallow, the surface area of the combustion chamber is less than with a deeper bowl of complicated shape. Lowering surface area in the combustion chamber leads to improved fuel economy.

摘要翻译： 公开了一种用于直喷式火花点火发动机的燃烧系统。 位于进气阀外侧的侧面安装的燃料喷射器将多个燃料喷射器引导成形成在圆顶活塞中的浅的球形碗。 这种燃烧系统具有良好的混合以促进早期注射时的良好空气利用和具有晚期注射的火花塞的可点燃混合物以促进冷启动。 由于碗平滑浅，所以燃烧室的表面积比较深的碗形复杂。 降低燃烧室中的表面积导致改进的燃料经济性。