There is disclosed a method of operating an engine assembly, including: driving a load with an internal combustion engine and an output of a turbine section, the turbine section driven by combustion gases from an exhaust the internal combustion engine; and injecting fuel upstream of the turbine section and downstream of the exhaust of the internal combustion engine. An engine assembly having a secondary injector for injecting fuel upstream of the turbine section and downstream of the combustion engine is also disclosed.

An engine line is described herein that includes a first engine including a front end accessory drive system and a second engine including a greater number of cylinders than the first engine and a front end accessory drive system. The engine line further includes a generator, in different manufacturing arrangements, mounting to each of the front engine accessory drive systems in the first and second engines in a common location.

An engine line is described herein that includes a first engine including a front end accessory drive system and a second engine including a greater number of cylinders than the first engine and a front end accessory drive system. The engine line further includes a generator, in different manufacturing arrangements, mounting to each of the front engine accessory drive systems in the first and second engines in a common location.

A generator set is disclosed. The generator set may include a liquid-cooled engine and an alternating current (AC) generator coupled to the liquid-cooled engine. The generator set may include an AC fan associated with the liquid-cooled engine and connected to the AC generator via a relay and an engine control module (ECM) associated with the liquid-cooled engine and connected to the AC fan via the relay. The generator set may include an engine temperature sensor associated with the liquid-cooled engine and connected to the ECM via a first circuit and an engine air temperature sensor associated with the liquid-cooled engine and connected to the ECM via a second circuit.

A generator set is disclosed. The generator set may include a liquid-cooled engine and an alternating current (AC) generator coupled to the liquid-cooled engine. The generator set may include an AC fan associated with the liquid-cooled engine and connected to the AC generator via a relay and an engine control module (ECM) associated with the liquid-cooled engine and connected to the AC fan via the relay. The generator set may include an engine temperature sensor associated with the liquid-cooled engine and connected to the ECM via a first circuit and an engine air temperature sensor associated with the liquid-cooled engine and connected to the ECM via a second circuit.

A fluid circuit for a trucking vehicle having a transport refrigeration unit is provided. The fluid circuit includes a first regulator assembly defining a first fuel inlet that is arranged to receive fuel from a first fuel tank and a first fuel outlet that is arranged to provide fuel to a first engine. The first regulator assembly having a first heat exchanger assembly defining a first coolant inlet that is arranged to receive coolant from a cooling system associated with the first engine and a first coolant outlet that is arranged to provide coolant to the cooling system.

Methods and systems are provided for an engine including cams having different lobe profiles. In one example, cams of a first cam group drive a plurality of deactivatable cylinder valves and cams of a second cam group drive a plurality of non-deactivatable cylinder valves. The cams of the first cam group include a different lobe profile relative to cams of the second cam group.

Methods and systems are provided for an engine including cams having different lobe profiles. In one example, cams of a first cam group drive a plurality of deactivatable cylinder valves and cams of a second cam group drive a plurality of non-deactivatable cylinder valves. The cams of the first cam group include a different lobe profile relative to cams of the second cam group.

A hydrogen fueled powerplant including an internal combustion engine that drives a motor-generator, and has a two-stage turbocharger, for an aircraft. A control system controls the operation of the motor-generator to maintain the engine at a speed selected based on controlling the engine equivalence ratio. The control system controls an afterburner, an intercooler and an aftercooler to maximize powerplant efficiency. The afterburner also adds power to the turbochargers during high-altitude restarts. The turbochargers also include motor-generators that extract excess power from the exhaust.

A hydrogen fueled powerplant including an internal combustion engine that drives a motor-generator, and has a two-stage turbocharger, for an aircraft. A control system controls the operation of the motor-generator to maintain the engine at a speed selected based on controlling the engine equivalence ratio. The control system controls an afterburner, an intercooler and an aftercooler to maximize powerplant efficiency. The afterburner also adds power to the turbochargers during high-altitude restarts. The turbochargers also include motor-generators that extract excess power from the exhaust.