There is disclosed a power generation assembly (300) for powering a transport refrigeration system (TRS) (52) of a vehicle (10), the power generation assembly (300) comprising: a torque converter (402) having an engine side input (404) and a transmission side output (406); a power take-off device (302) coupled to the engine side input (404) of the torque converter (402), the power take-off device (302) having a rotary output; a permanent magnet generator (304) having a rotor (420) directly coupled to the power take-off device (302) for power generation; wherein the power generation assembly (300) is configured to be housed in an engine bay (210) of a vehicle (10), and is configured to generate at least 8 kW of power when the engine side input (404) has a rotational speed of 500 rpm.

A radial engine-generator includes an electric power generator and a radial engine. The radial engine-generator can be a mobile and portable unit, and is employable as a primary or back-up source of electric power at data centers, manufacturing facilities, electric vehicle charging stations, medical facilities, telecommunications, and residential neighborhoods, among many other applications. The electric power generator and radial engine are coupled together. The radial engine includes, among other components, multiple cylinders, multiple cylinder heads, and multiple overhead camshaft assemblies. The overhead camshaft assemblies are located at the cylinder heads and each include one or more camshafts. The camshaft(s) receive rotational drive input from a crankshaft of the radial engine. In certain implementations, camshaft carrier assemblies can be provided to support components of the overhead camshaft assemblies.

A volumetric expander comprising a casing having a general inlet and outlet, a piston operating inside the casing and adapted to define an expansion chamber with variable volume, a main shaft connected to the piston, and a valve for selectively opening and closing an inlet and an outlet of the expansion chamber allowing: a condition of introduction of the working fluid in the expansion chamber, a condition of expansion of the working fluid in the expansion chamber, and a condition of discharge of the working fluid from said expansion chamber. The casing defines a discharge chamber in direct communication with the general outlet and configured for being put in direct fluid communication with the outlet of the expansion chamber during the condition of discharging the working fluid from the expansion chamber itself. The casing comprises an auxiliary inlet which is in communication with the discharge chamber of the casing and with the general outlet; the auxiliary inlet is configured for enabling the working fluid to directly enter the casing.

A bearing assembly with a consumer of electrical energy and at least one energy generating device, has a first component and a second component, which are arranged so as to be movable repetitively relative to one another. The energy generating device has at least one electrical conductor arranged in a loop shape and at least one permanent magnet, wherein the electrical conductor is arranged on the first component, and the permanent magnet is arranged on the second component.

A vehicle may include an electromechanical energy recovery system and be configured to perform a method for its operation.

The generator device of electrical energy with permanent magnets, particularly for the supply of electrical loads and/or batteries of vehicles, connectable to at least a driving shaft of a motor, comprises: a rotor element rotating around an axis of rotation; a stator element contained inside the rotor element, or containing the rotor element, and coaxial to the rotor element, the stator element having a plurality of stator slots; a plurality of stator windings of a conductive material arranged at each of the stator slots and connected to a power supply line; a plurality of permanent magnets having a first side associated with the rotor element and a second side facing the stator element; wherein the permanent magnets are associated with the rotor element in a configuration of the Halbach array type to define a magnetic coupling to the stator windings wherein the magnetic field flow at the second side of each of the permanent magnets is substantially greater than the flow of the magnetic field at the first side of each of the permanent magnets.

A standby generator includes an internal combustion engine, an alternator, and a controller. The internal combustion engine includes an engine housing, an engine block, and a crankshaft. The engine housing at least partially covers the engine block. The engine block includes a cylinder. The crankshaft is configured to rotate about a vertical crankshaft axis in response to movement by the cylinder. The alternator includes a stator, as well as a rotor that is configured to rotate with the rotation of the crankshaft to produce electrical power. The controller includes an inverter that is configured to receive electrical power from the alternator and output alternating current electrical power. The controller extends at least partially above the engine housing.

A flywheel assembly for a renewable energy generation system includes a flywheel housing defining a cavity therein, a flywheel rotatably disposed within the cavity of the flywheel housing, where the flywheel is simultaneously formed from the same component as the flywheel housing, a magnetic levitation disk defining opposed upper and lower surfaces, the upper surface supporting the flywheel and the lower surface including a first plurality of magnets disposed thereon, and a base plate having a second plurality of magnets disposed on a surface thereof that is facing the first plurality of magnets, the second plurality of magnets having a polarity that is opposite of a polarity of the first plurality of magnets such that the magnetic force of the first and second plurality of magnets urges the magnetic levitation disk away from the base plate.

An adaptor is disclosed for connecting a rotating electrical machine 12 to a prime mover 10. The adaptor comprises at least one air outlet. The adaptor is arranged to provide an increase in a cross-sectional area of air flow towards the outlet. In this way part of the dynamic pressure can be converted into additional static pressure rise through steady expansion of the air flow cross-section. This in turn may help to improve the overall amount of cooling air passing through the machine for a given fan input power.

An electrical machine, e.g., a power generator such as an alternator for a motor vehicle, is disclosed. The electrical machine includes a rotor and a stator, and the rotor is non-rotatably secured to a shaft having a shaft end that protrudes out of the rotor. A belt pulley is arranged at the shaft end for coupling to a drive. A bearing is non-rotatably secured to the shaft between the belt pulley and the rotor. A spacer ring is non-rotatably secured to the shaft between the belt pulley and the bearing. A gap which encircles the shaft is disposed between the belt pulley and the spacer ring, and between the spacer ring and the bearing, respectively. A plurality of blades directed radially outwards are arranged in at least one of the respective gaps. The blades convey incoming contaminated air to the outside and protect the respective gap against dirt.