A fuel system is disclosed that is capable of operating in multiple combustion modes. A method is also disclosed of operating a dual fuel engine in conjunction with the fuel system. The method may include detecting a performance parameter of gaseous fuel in the fuel system. The method may also include selecting a combustion mode from a plurality of combustion modes based on the performance parameter. The method may further include injecting gaseous fuel and liquid fuel into at least one cylinder of the engine according to an injection timing corresponding to the selected combustion mode.

Railroad cars with countermeasure structures that minimize the likelihood of deflagration and detonation hazards in gaseous hydrogen fuel storage and supply component in one or more of the compartments of such railroad cars.

Railroad cars with countermeasure structures that minimize the likelihood of deflagration and detonation hazards in gaseous hydrogen fuel storage and supply component in one or more of the compartments of such railroad cars.

A fuel deck for on-board storage and delivery of gaseous fuel for a locomotive. The fuel deck is formed between the engine deck and the trucks of the locomotive. The fuel deck includes a base for riding on the trucks, a ceiling configured to separate the fuel deck from the engine deck, and one or more support structures extending between the base and the ceiling. The support structures are configured to support the load from the engine deck, and separate the base from the ceiling to form a fuel storage compartment that is adapted to store one or more fuel tanks that contain the gaseous fuel. A fuel system including one or more fuel tanks is also provided, where each fuel tank may have more than one inlet/outlet port for enabling faster refilling or distribution of the gaseous fuel, among other considerations.

A fuel tank is configured to be selectively coupled to a chassis of the locomotive based on an anticipated change in axle load capacity of a railroad. The fuel tank includes a body, a coupling device, and a lifting adapter. The coupling device is configured to releasably couple the body to the chassis of the locomotive. The lifting adapter is configured to releasably engage with a lifting implement of a machine.

A fuel tank is configured to be selectively coupled to a chassis of the locomotive based on an anticipated change in axle load capacity of a railroad. The fuel tank includes a body, a coupling device, and a lifting adapter. The coupling device is configured to releasably couple the body to the chassis of the locomotive. The lifting adapter is configured to releasably engage with a lifting implement of a machine.

Various methods and systems are provided for a vehicle. In one example, a vehicle comprises a first fuel tank configured to store a first fuel, and a second fuel tank configured to store a second fuel, both the first fuel tank and the second fuel tank disposed in the vehicle, a multi fuel engine disposed in the vehicle, the multi fuel engine configured to combust the first fuel and the second fuel, a fuel injection system configured to inject the first fuel into the multi fuel engine, and a conduit configured to route the second fuel from the second fuel tank to the multi fuel engine.

Various methods and systems are provided for a vehicle. In one example, a vehicle comprises a first fuel tank configured to store a first fuel, and a second fuel tank configured to store a second fuel, both the first fuel tank and the second fuel tank disposed in the vehicle, a multi fuel engine disposed in the vehicle, the multi fuel engine configured to combust the first fuel and the second fuel, a fuel injection system configured to inject the first fuel into the multi fuel engine, and a conduit configured to route the second fuel from the second fuel tank to the multi fuel engine.

Various methods and systems are provided for supplying gaseous natural gas to a rail vehicle. In one embodiment, a method of receiving fuel for use by a first vehicle comprises sending a request from the first vehicle to a remote liquid fuel container to convert a portion of the fuel in the liquid fuel container that is in a first, liquid phase from the first, liquid phase to a second, gaseous phase.

Various methods and systems are provided for supplying gaseous natural gas to a rail vehicle. In one embodiment, a method of receiving fuel for use by a first vehicle comprises sending a request from the first vehicle to a remote liquid fuel container to convert a portion of the fuel in the liquid fuel container that is in a first, liquid phase from the first, liquid phase to a second, gaseous phase.