Methods and systems are provided for an oil heater of a hybrid electric vehicle. The oil heater comprises a metal foam comprising a plurality of pores. The oil heater is activated during a regenerative braking event where an oil temperature is less than a predefined temperature.

A method according to an exemplary aspect of the present disclosure includes, among other things, periodically adjusting powertrain operation of an electrified vehicle equipped with an internal combustion engine to progressively influence oil quality of oil of the internal combustion engine.

An assembly includes a valve integration unit attached to a transmission oil heater. The valve integration unit includes a valve mechanism and a housing having first to sixth fluid ports for oil input and output. The interior space of the housing has three portions, including a second portion defining a valve chamber and a third portion defining a bypass flow passage between the first and second portions. The valve mechanism has a temperature responsive actuator and first, second and third valve members. The movement of the first and second valve members is actuated by the temperature responsive actuator. The third valve member and the third valve opening are located in the second portion of the interior space. The third valve member is actuatable in response to a pressure differential between the first and second portions of the interior space.

Systems and apparatuses include a generator set including an alternator, a transmission coupled to the alternator and structured to receive power from an engine, and an oil heating system including an oil pan structured to provide lubricating oil to the engine and including an oil outlet and an oil inlet, a plurality of immersion heaters positioned at least partially within the oil pan, a return line positioned within the oil pan, coupled to the oil inlet, and including a plurality of apertures for providing oil into the oil pan, each aperture aligned with a corresponding one of the plurality of immersion heaters, and a pump receiving oil from the oil outlet, and providing oil to the oil inlet.

A heat transfer system for a vehicle including an axle assembly having a carrier housing. A sump defined by the carrier housing contains a fluid lubricant. The heat transfer system further includes a heat exchanger within the sump. The heat exchanger is in fluid communication with a battery cooling unit.

An exemplary fluid heating method includes, among other things, operating an engine of a vehicle to heat an engine fluid during a drive cycle if the vehicle is in a fluid maintenance mode, and heating the fluid prior to the drive cycle if the vehicle is in the fluid maintenance mode and the vehicle is electrically coupled to a grid power source. An exemplary fluid heating assembly includes, among other things, an engine of an electrified vehicle, and a fluid heater that is activated to heat a fluid of the engine in response to the electrified vehicle being in a fluid maintenance mode when electrically coupled to a grid power source.

A turbocharger includes a housing and a rotor with a shaft that is housed within the housing. The turbocharger also includes a bearing structure that supports rotation of the shaft within the housing and a locating fastener that retains the bearing structure in a position relative to the housing. Furthermore, the turbocharger includes a heating system coupled to the locating fastener and that is configured for selectively heating the locating fastener.

A heat transfer system for a vehicle including an axle assembly having a carrier housing. A sump defined by the carrier housing contains a fluid lubricant. The heat transfer system further includes a heat exchanger having one or more electrically conductive elements. The electrically conductive elements are at least partially disposed within the carrier housing. Additionally, an electrical power source is in electrical connection with the heat exchanger.

An unmanned aerial vehicle has an internal combustion engine, and a fuel and lubrication system comprising a fuelling system for fuelling the engine and a lubrication system for delivering lubricating oil to the engine. The fuelling system comprises a fuel reservoir from which fuel can be delivered to the engine. The fuel reservoir comprises a main tank and a header tank. The lubrication system comprises an oil tank. The oil tank is accommodated internally within the main tank to provide an integrated assembly. The arrangement provides for warming of lubrication oil for the UAV engine using several available heat sources. Further, the arrangement facilitates a configuration and layout intended to minimise or negate any undesirable moments of inertia for the UAV during flight as fuel and oil is consumed.

An engine oil state control device for controlling a fuel mixture ratio of a fuel mixed in an engine oil of an engine on which a predetermined combustion control is performed includes comprising a fuel mixture ratio acquisition part configured to acquire the fuel mixture ratio, and an oil temperature rise control part configured to perform an oil temperature rise control for increasing an evaporation rate of the fuel mixed in the engine oil if the fuel mixture ratio is equal to or greater than a first threshold.