公开(公告)号：US07699041B2

公开(公告)日：2010-04-20

申请号：US12001434

申请日：2007-12-11

申请人： Michael J. Colletti ,  Kristopher J. Duell ,  Donald Borraccia

发明人： Michael J. Colletti ,  Kristopher J. Duell ,  Donald Borraccia

IPC分类号： F02M69/46

CPC分类号： F02M55/025 ,  F02M65/003 ,  F02M2200/8084

摘要： A fuel distribution tube for a direct injection fuel rail assembly includes an elongate cylindrical conduit, a plurality of first scalloped features that receive fuel injector sockets formed in the conduit, and plurality of second scalloped features that receive mounting bosses formed in the conduit. The scalloped features are designed to closely match the outer radii of the injector sockets and the mounting bosses. The scalloped features provide necessary dimensional control to injector sockets and mounting bosses and fuel passage from the fuel distribution tube to the fuel injector sockets. The scalloped features enable a leak test of the braze joints of the fuel rail assembly. By providing a direct injection fuel rail assembly that includes the fuel distribution tube having scalloped features formed in the conduit, optimization of true position location of fuel injector sockets and improved braze joints are enabled.

摘要翻译： 用于直接喷射燃料轨道组件的燃料分配管包括细长的圆柱形导管，多个第一扇形特征，其容纳形成在导管中的燃料喷射器插座，以及多个第二扇形特征，其接收形成在导管中的安装凸台。 扇形特征被设计成紧密地匹配喷射器插座和安装凸台的外半径。 扇形特征为喷油器插座和安装凸台以及从燃料分配管到燃料喷射器插座的燃料通道提供必要的尺寸控制。 扇形特征使得能够对燃料导轨组件的钎焊接头进行泄漏测试。 通过提供包括形成在管道中的具有扇形特征的燃料分配管的直接喷射燃料轨道组件，能够实现燃料喷射器插座和改进的钎焊接头的真实位置位置的优化。