Abstract: A system includes dual fuel injector disposed centrally on a cylinder has a first set of one or more nozzles for injecting a methanol stream and a second set of one or more nozzles for injecting a second fuel. The spark plug is disposed adjacent to the dual fuel injector and in the fluid communication with the main combustion chamber. The methanol tank is fluidly connected to a first set of one or more orifices of the dual fuel injector. The second fuel tank is fluidly connected to a second set of one or more orifices of the dual fuel injector. A first methanol stream is fed to a dual fuel injector. A second methanol stream is reformed in an onboard methanol reformer, producing a reformer effluent stream. The first fuel and the second fuel are combusted in a main combustion chamber of the methanol-fueled engine.

Abstract: A method for injecting nitrogen into an internal combustion engine cylinder includes moving a piston back and forth in a cylinder and injecting pure nitrogen into a combustion chamber during the compression stroke. The method includes injecting the fuel and nitrogen into different regions to create a stratified gas environment, igniting the fuel, and releasing exhaust emissions. An engine system for injecting nitrogen into an internal combustion engine includes a cylinder, a first intake line, one or more nitrogen injectors, and a fuel injector. An engine system for injecting nitrogen into an internal combustion engine includes a cylinder, an intake line, and a multi-nozzle injector with a fuel nozzle and a nitrogen nozzle.

Abstract: A method for injecting nitrogen into an internal combustion engine cylinder includes moving a piston back and forth in a cylinder and injecting pure nitrogen into a combustion chamber during the compression stroke. The method includes injecting the fuel and nitrogen into different regions to create a stratified gas environment, igniting the fuel, and releasing exhaust emissions. An engine system for injecting nitrogen into an internal combustion engine includes a cylinder, a first intake line, one or more nitrogen injectors, and a fuel injector. An engine system for injecting nitrogen into an internal combustion engine includes a cylinder, an intake line, and a multi-nozzle injector with a fuel nozzle and a nitrogen nozzle.

Abstract: A gasoline compression ignition engine, a vehicle and a method of operating a gasoline compression ignition engine. An inlet air management system includes a membrane-based separator and an exhaust gas recirculation flowpath that cooperate to deliver a nitrogen enriched air stream to the engine to help reduce exhaust gas emissions. The separator segregates the incoming air into the nitrogen enriched air stream as well as an oxygen enriched air stream such that the latter can be used for various engine load conditions, as well as for supplemental air for a cabin or related passenger compartment within a vehicle that is powered by the engine.

Abstract: A gasoline compression ignition engine, a vehicle and a method of operating a gasoline compression ignition engine. An inlet air management system includes a membrane-based separator and an exhaust gas recirculation flowpath that cooperate to deliver a nitrogen enriched air stream to the engine to help reduce exhaust gas emissions. The separator segregates the incoming air into the nitrogen enriched air stream as well as an oxygen enriched air stream such that the latter can be used for various engine load conditions, as well as for supplemental air for a cabin or related passenger compartment within a vehicle that is powered by the engine.