Abstract: A leak detection device includes a body having at least one fluid input that receives a fluid leak, at least one drain fluidly coupled with a container, and at least one sensor conduit input fluidly coupled with at least one sensor. The fluid input is located above the drain but below the sensor conduit input. The body includes an internal conduit that is fluidly coupled with and extends between the fluid input, the drain, and the sensor conduit input. The internal conduit includes a lower branch that extends below the fluid input to the drain. The internal conduit includes an upper branch that separately extends in the body above the sensor conduit input to the drain. The lower branch includes a reduced flow portion below the fluid input and the sensor conduit input but above the drain.

Abstract: A configuration is provided for a fuel injector for a common rail fuel system. In one example, the fuel injector may include a housing, an inner chamber enclosed by the housing, and a flow limiting valve. The flow limiting valve may be arranged at a downstream end of the inner chamber and also enclosed by the housing. This configuration may allow the fuel injector housing to have sufficient wall strength to withstand high pressure fuel injection and may allow effective fuel supply cut off when fuel cut off is demanded.

Abstract: Various systems and methods are provided for adjusting operating parameters of an internal combustion engine. In one example, a system may include adjusting an amount of advance of a fuel injection timing of a plurality of fuel injectors of an internal combustion engine relative to top dead center (TDC) responsive to engine output demand, where, as the engine output demand increases, the amount of advance first decreases and then increases. In this way, an amount of vehicle emissions may be decreased while an amount of fuel consumption is decreased.

Abstract: A configuration is provided for a fuel injector for a common rail fuel system. In one example, the fuel injector may include a housing, an inner chamber enclosed by the housing, and a flow limiting valve. The flow limiting valve may be arranged at a downstream end of the inner chamber and also enclosed by the housing. This configuration may allow the fuel injector housing to have sufficient wall strength to withstand high pressure fuel injection and may allow effective fuel supply cut off when fuel cut off is demanded.

Abstract: Various systems and methods are provided for adjusting operating parameters of an internal combustion engine. In one example, a system may include adjusting an amount of advance of a fuel injection timing of a plurality of fuel injectors of an internal combustion engine relative to top dead center (TDC) responsive to engine output demand, where, as the engine output demand increases, the amount of advance first decreases and then increases. In this way, an amount of vehicle emissions may be decreased while an amount of fuel consumption is decreased.

Abstract: A leak detection device includes a body having at least one fluid input that receives a fluid leak, at least one drain fluidly coupled with a container, and at least one sensor conduit input fluidly coupled with at least one sensor. The fluid input is located above the drain but below the sensor conduit input. The body includes an internal conduit that is fluidly coupled with and extends between the fluid input, the drain, and the sensor conduit input. The internal conduit includes a lower branch that extends below the fluid input to the drain. The internal conduit includes an upper branch that separately extends in the body above the sensor conduit input to the drain. The lower branch includes a reduced flow portion below the fluid input and the sensor conduit input but above the drain.

Abstract: A method for repairing damage to a fuel pump assembly of a locomotive is provided that includes identifying a void within a fluid cavity of a fuel pump assembly. After identifying the void within the fluid cavity of the fuel pump assembly, the void is cleaned with a cleaning product, and a filler material is inserted within the void. Then the filler material is laser welded to repair the void. After being laser welded, the fluid cavity of the fuel pump assembly is honed.

Abstract: A locomotive engine control system includes one or more processors operably connected to fuel supply devices. The fuel supply devices are configured to supply fuel into different corresponding cylinders of an engine. The one or more processors are configured to monitor a fuel quantity injected into the cylinders of the engine before and after communication of an overfuel control signal. The overfuel control signal commands the fuel supply device corresponding to a first cylinder of the cylinders to supply excess fuel into the first cylinder. Responsive to the fuel quantity that is monitored not decreasing after the communication of the overfuel control signal, the one or more processors are configured to determine that the fuel supply device corresponding to the first cylinder is defective, and may generate one or more control signals indicative of the fuel supply device corresponding to the first cylinder being defective.

Abstract: A method for repairing damage to a fuel pump assembly of a locomotive is provided that includes identifying a void within a fluid cavity of a fuel pump assembly. After identifying the void within the fluid cavity of the fuel pump assembly, the void is cleaned with a cleaning product, and a filler material is inserted within the void. Then the filler material is laser welded to repair the void. After being laser welded, the fluid cavity of the fuel pump assembly is honed.

Abstract: A locomotive engine control system includes one or more processors operably connected to fuel supply devices. The fuel supply devices are configured to supply fuel into different corresponding cylinders of an engine. The one or more processors are configured to monitor a fuel quantity injected into the cylinders of the engine before and after communication of an overfuel control signal. The overfuel control signal commands the fuel supply device corresponding to a first cylinder of the cylinders to supply excess fuel into the first cylinder. Responsive to the fuel quantity that is monitored not decreasing after the communication of the overfuel control signal, the one or more processors are configured to determine that the fuel supply device corresponding to the first cylinder is defective, and may generate one or more control signals indicative of the fuel supply device corresponding to the first cylinder being defective.