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公开(公告)号：US07699041B2
公开(公告)日：2010-04-20
申请号：US12001434
申请日：2007-12-11
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。
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公开(公告)号：US20090144959A1
公开(公告)日：2009-06-11
申请号：US12001435
申请日：2007-12-11
IPC分类号： B23K1/00
CPC分类号： F02M55/025 , F02M65/003 , F02M2200/8084 , Y10T29/49393 , Y10T29/49826
摘要： A method for assembling a direct injection fuel rail of an internal combustion engine includes the steps of: designing a fuel distribution tube having a first radius, mating a fuel rail component having a second radius that is different from the first radius with the fuel distribution tube, forming at least one projection point where the fuel rail component contacts the fuel distribution tube, consuming the at least one projection point during a resistance welding process, and forming a temporary bond between the fuel rail component and the fuel distribution tube. By intentionally mismatching the radii of fuel rail components, projection points are created that can be consumed during a resistance welding process. As the projection points are consumed, a temporary bond is formed between the fuel distribution tube and the fuel rail component, and a braze joint gap is optimized, which enables formation of a high quality braze joint.
摘要翻译： 一种用于组装内燃机的直接喷射燃料轨的方法，包括以下步骤：设计具有第一半径的燃料分配管，将具有与第一半径不同的第二半径的燃料轨组件与燃料分配管 形成至少一个投影点，其中所述燃料轨道部件接触所述燃料分配管，在电阻焊接过程期间消耗所述至少一个投影点，以及在所述燃料轨道部件和所述燃料分配管之间形成临时结合。 通过有意地使燃料轨道部件的半径不匹配，产生可在电阻焊接过程中消耗的投影点。 当投影点消耗时，在燃料分配管和燃料轨道部件之间形成临时粘结，并且优化钎焊接缝间隙，从而能够形成高品质的钎焊接头。
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公开(公告)号：US20090145504A1
公开(公告)日：2009-06-11
申请号：US12001434
申请日：2007-12-11
IPC分类号： F16L9/02
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。
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