GM Locomotive Engineering

A type of locomotive with a 16-cylinder, two-stroke, 'V' configuration internal combustion engine.

The arrangement of cylinders in the GM locomotive's engine, with two banks of cylinders forming a 'V' shape.

The ratio of the volume of the cylinder when the piston is at the bottom of its stroke to the volume when it is at the top of its stroke.

The volume of air displaced by the piston in one complete stroke.

The maximum continuous electrical current that the traction alternator can output.

A part of the locomotive that converts mechanical energy from the engine into electrical energy for the traction motors.

A type of locomotive with two bogies, each with three axles, and a total of six axles.

A device that helps to brake a locomotive by using the engine's power to resist motion.

A part on a locomotive that provides a stable platform for lifting the locomotive.

The main control center for all electrical systems on a GM locomotive.

A pump that moves fuel from the tank to the engine.

Electric motors used to start the locomotive engine.

A separate cabinet that manages the locomotive's traction control system.

A blower that circulates air to cool the traction motors.

A blower that circulates air to cool the main generator and companion alternator.

The large, powerful diesel engine driving the locomotive.

The system that delivers fuel to the engine, ensuring it runs smoothly.

A panel that contains circuit breakers for the generator field, traction control blowers (TCC1 and TCC2), and other electrical components.

A panel with jacks used for testing and measuring voltages in the GM locomotive's electrical system.

A system that provides an interface between the control computer and the locomotive crew, consisting of a display screen and keypad.

A cabinet that houses key electrical components, including the main control panel (with relays and resistors), computer power supply, digital voltage regulator module (DVR), and other elements.

A control computer that manages locomotive operations, receiving inputs from various systems and controlling the power output.

A control system for the traction motors, it allows the locomotive to accelerate and brake smoothly.

The main generator of the locomotive, responsible for producing electricity for the traction motors.

A compartment that houses the TCC, dynamic breaking grids, cooling fans, and electronic blowers.

A compartment containing the traction generator, traction motor blower, and associated components.

The minimum oil pressure required for a GM locomotive engine to function properly. It ranges from 8-12 PSI at idle and 25-29 PSI at full speed.

A safety feature that automatically shuts down the engine if there is insufficient oil pressure, preventing damage.

A filter specifically designed for the turbocharger, protecting its bearings and other lubricated parts from wear and tear.

This system ensures the turbocharger is lubricated before engine startup and cools down after shutdown, preventing damage due to heat.

A valve that releases excess oil pressure back into the engine sump, preventing damage due to excessive pressure.

The system that draws fuel from the tank, filters it, pressurizes it, and injects it into the engine in the correct amount and in atomized form.

A fuel tank, a fuel pump, filters, and fuel lines.

A strainer located within the fuel tank that separates foreign particles before the fuel reaches the pump.

It ensures a consistent fuel supply to the engine, even at different speeds and loads.

The first filter in the fuel feed system, usually with a bypass valve and sight glass.

The pressure at which the primary fuel filter's bypass valve opens, allowing fuel to flow directly to the engine.

A second filter located on the engine, usually spin-on type.

It prevents unfiltered fuel from reaching the injectors, which could damage them.

The injectors are supplied with fuel through manifolds located on the engine.

The process by which fuel is finely dispersed into tiny droplets before entering the engine.