公开(公告)号：US07337652B2

公开(公告)日：2008-03-04

申请号：US10691318

申请日：2003-10-22

申请人： David M. Shamine

发明人： David M. Shamine

IPC分类号： G01M3/04 ,  G01M3/16

CPC分类号： F02M55/002 ,  F02M63/0225 ,  F02M65/00

摘要： A leak diagnostic strategy for an engine equipped with a high pressure common rail fuel system includes a plurality of separate leak lines. Each of the leak lines is constructed and positioned to capture fuel leaking from one of several different high pressure spaces associated with the fuel system. Once a leak is detected, the location of the leak can be diagnosed by opening different leak diagnostic ports until fuel is evacuated from the system. Each of the leak diagnostic ports is associated with one of the leak lines. The system allows for quick determination of a leak location without cumbersome testing or partial dismantlement of engine related subsystems and components.

摘要翻译： 配备有高压共轨燃料系统的发动机的泄漏诊断策略包括多个单独的泄漏管线。 每个泄漏管线被构造和定位以捕获从与燃料系统相关联的多个不同高压空间之一泄漏的燃料。 一旦检测到泄漏，可以通过打开不同的泄漏诊断端口来诊断泄漏的位置，直到燃料从系统中排出。 每个泄漏诊断端口与泄漏线之一相关联。 该系统允许快速确定泄漏位置，而无需繁琐的测试或部分拆除发动机相关的子系统和部件。

公开(公告)号：US06928984B1

公开(公告)日：2005-08-16

申请号：US10769076

申请日：2004-01-30

申请人： David M. Shamine ,  Albrecht M. Ritter

发明人： David M. Shamine ,  Albrecht M. Ritter

IPC分类号： F02M55/00 ,  F02M55/02

CPC分类号： F02M55/025 ,  F02M55/005 ,  F02M55/02

摘要： High pressure fluid systems, such as those found in common rail fuel systems for engines, often need a low pressure containment system to appropriately address the possibility of fuel leakage around the engine. In addition, such high pressure systems also often require flow to go from one location, such as the common rail, to another location, such as a fuel injector, while undergoing a direction change because of spacial constraints around the engine. The present invention utilizes an elbow component with valve surfaces on its two faces that are oriented at about 90° with respect to one another. When the elbow component is fastened to the head with first fasteners and fastened to a flow limiter housing in another direction with second fasteners, a quill tube is compressed between the valve surface on the elbow component and a similar conical seat on a fuel injector in one direction while also compressing a short tube and flow limiter between the other valve surface of the elbow component and the common rail. The low pressure containment system is sealed with O-rings. The high pressure connection can be serviced without dismantling other engine components.

摘要翻译： 高压流体系统，例如用于发动机的共轨燃料系统中的那些，通常需要一个低压容纳系统，以适当地解决发动机周围的燃料泄漏的可能性。 此外，由于发动机周围的空间限制，这种高压系统还经常需要从一个位置（例如共轨）流向另一位置，例如燃料喷射器，同时由于空间限制而进行方向改变。 本发明利用弯管部件，其两个表面上的阀表面相对于彼此以大约90°的方向定向。 当弯头部件用第一紧固件紧固到头部并且用另一个紧固件固定到另一个方向上的流动限制器壳体时，套筒管被压缩在肘部件上的阀表面和燃料喷射器之间的类似的锥形座 方向，同时在弯管部件的另一个阀表面和共轨之间压缩短管和流量限制器。 低压容纳系统用O形圈密封。 高压连接可以在不拆卸其他发动机部件的情况下进行维修。