Abstract: A propulsion system includes an engine having an engine output shaft, and an electric motor assembly including an electric motor having an output gear fixed to rotate with a driveshaft, and a disconnect clutch. The electric motor assembly further includes a common housing positioned around the electric motor and the disconnect clutch, and a fluid system including a fluid circuit for cooling and lubrication of the electric motor and the disconnect clutch. Related methodology including operating a propulsion system in a motor-only mode, an engine-only mode, and a hybrid mode is also disclosed.

Abstract: A propulsion system includes an electric motor assembly having an electric motor, a driveshaft, and a disconnect clutch. The disconnect clutch is structured to couple the driveshaft to an engine output shaft. The propulsion system further includes a fluid system having a cooling and lubrication fluid circuit fluidly connected to a first pump, and a clutch actuation fluid circuit fluidly connected to a second pump. The cooling and lubrication fluid circuit is fluidly connected to the clutch actuation fluid circuit via at least one of respective pump outgoing conduits from the first pump and the second pump or respective pump supply conduits to the first pump and the second pump. Related operating methodology is also disclosed.

Abstract: A machine is provided. The machine includes a frame and an engine provided on the frame. The machine includes a generator drivably coupled to the engine. The machine includes an inverter communicably connected to the generator. The machine also includes an electric motor communicably connected to the inverter. The machine further includes a tank coupled to the frame. The tank includes at least one face and is configured to receive the inverter thereon.

Abstract: An engine is disclosed. The engine may have an engine block with a front end, a back end opposite the front end in a length direction, a first side, a second side opposite the first side, a top, and a bottom opposite the top. The engine may also have at least one cylinder head connected to the top of the engine block, and a first heat exchanger mounted at the first side of the engine block and configured to receive a flow of raw coolant and a flow of fresh coolant. The engine may further have a second heat exchanger mounted at the first side of the engine block, between the first heat exchanger and the top. The second heat exchanger may be configured to receive a flow of fresh coolant from the first heat exchanger and a flow of combustion air.

Abstract: An engine is disclosed. The engine may have an engine block with a front end, a back end opposite the front end in a length direction, a first side, a second side opposite the first side, a top, and a bottom opposite the top. The engine may also have at least one cylinder head connected to the top of the engine block, and a first heat exchanger mounted at the first side of the engine block and configured to receive a flow of raw coolant and a flow of fresh coolant. The engine may further have a second heat exchanger mounted at the first side of the engine block, between the first heat exchanger and the top. The second heat exchanger may be configured to receive a flow of fresh coolant from the first heat exchanger and a flow of combustion air.