An engine-driven welding generator that monitors fuel level is provided. The engine-driven welding generator comprises a fuel level monitoring system configured to measure a remaining fuel level in a fuel tank of the engine-driven welding generator, determine a rate of fuel usage of an engine of the engine-driven welding generator, and calculate a remaining run time of the engine based on the remaining fuel level and the rate of fuel usage of the engine.

A vehicle includes a generator for supplying power to a load; and one or more controllers, programmed to responsive to detecting a fuel level reaching a predefined critical value, stop the generator and instruct a second vehicle to start to generate power, the vehicle serving as a pass-through conduit between the load and the second vehicle.

A portable generator includes a combustion engine. The portable generator includes an electric generator coupled to the combustion engine. The portable generator can include a load bank. When the electric generator operates at a first voltage and generates less than a threshold amount, the load bank is coupled to the electric generator in a first configuration. When the electric generator operates at a second voltage that is different than the first voltage, the load bank is coupled to the electric generator in a second configuration that is different than the first configuration.

In an embodiment, an integrated ground support system for an aircraft is described herein, the system including a frame on which the system is arranged as a singular assembly. An engine, drive train, alternator, bleed air unit, one or more electrical components, and air cycle machine are mounted on the frame. The engine operates at a first operational state associated with a first rotational speed that is independent of a frequency associated with electrical power, if only the electrical power is to be used by the aircraft, and the engine operates at a second operational state associated with a second rotational speed, different from the first rotational speed, that is a function of a pressure associated with bleed air or the conditioned air, if the electrical power and one of the bleed air or the conditioned air are to be used simultaneously by the aircraft.

An internal combustion engine-based system includes an internal combustion engine. The internal combustion engine-based system includes an engine interrupt connected to the engine. The engine interrupt is configured to selectively stop the operation of the engine. The internal combustion engine-based system includes a controller in communication with the engine interrupt. The internal combustion engine-based system includes a carbon monoxide detector in communication with the controller. The controller uses the engine interrupt to stop the operation of the engine when the carbon monoxide detector provides the controller with signals that are representative of a carbon monoxide level proximate the internal combustion engine that together form a trend of building carbon monoxide amounts over a set time interval.

Power system radiators and power systems having radiators are disclosed. An example power system includes: an engine; a generator configured to generate electrical power from mechanical power provided by the engine; power conversion circuitry configured to convert the electrical power from the generator to welding-type power; and a housing enclosing the engine, the generator, and the power conversion circuitry; and a radiator assembly configured to cool the engine and comprising a heat exchanger oriented substantially horizontally when the power system is installed.

An automated system for managing temperature and reducing crankcase oil dilution in an internal combustion engine. The system includes a rotatable shutter plate having an open portion, a closed portion and a peripheral rim, the peripheral rim having a frictional surface thereon; a motor having a rotatable shaft having a pinion affixed at one end thereof for engagement with the frictional surface of the peripheral rim of the rotatable shutter plate; and a temperature sensor for monitoring a temperature indicative of engine warm-up and sending a signal to a controller; wherein the rotatable shutter plate is structured and arranged to at least partially occlude an air inlet to or outlet from the internal combustion engine when rotated in response to a signal received from the controller. A method of reducing crankcase oil dilution and managing temperature in a spark-ignited engine operating on middle-distillate fuel and a portable engine or engine-generator combination having multi-fuel capability are also provided.

A work machine that can discharge water collected inside a casing to the outside, reduce leakage of noise, and reduce entry of foreign matter from outside. The work machine includes a bottom portion cover forming a portion of a casing, and the bottom portion cover includes: at least two ribs and a bead (strengthening structure portions) that are formed substantially perpendicular to a bottom surface of the bottom portion cover; and a drain hole located in a connecting portion connecting the bottom surface of the bottom portion cover and a water-discharging rib among the at least two ribs. An upper portion of the water-discharging rib is located over the drain hole.

An internal combustion engine-based system includes an internal combustion engine. The internal combustion engine-based system includes an engine interrupt connected to the engine. The engine interrupt is configured to selectively stop the operation of the engine. The internal combustion engine-based system includes a controller in communication with the engine interrupt. The internal combustion engine-based system includes a carbon monoxide detector in communication with the controller. The controller uses the engine interrupt to stop the operation of the engine when the carbon monoxide detector provides the controller with signals that are representative of a carbon monoxide level proximate the internal combustion engine that together form a trend of building carbon monoxide amounts over a set time interval.

A power generating apparatus and vector control method thereof are provided. The apparatus includes a rotor with plurality of symmetric phase windings, a stator with a single phase winding, sensors and an excitation control device. Current sensors on the stator side and on the rotor side are configured to measure the amplitudes of the load current and the phase current of the rotor respectively. A position sensor is configured to measure the angle of the rotor. The excitation control device is configured to regulate the engine speed responsive to load power. The excitation control device also generates a modulating signal in accordance with the target voltage vector of the rotor and the slip angle and regulates the excitation current in the phase windings of the stator with the modulating signal.