The present invention relates to a motor vehicle rotary electric machine (100) drive assembly, the drive assembly comprising a rotor shaft (2) extending along a longitudinal axis (X) and a connecting piece (4) providing connection between the shaft and the torque transmission system comprising a bore (41) for the passage of the rotor shaft, the drive assembly being characterized in that the bore comprises a first wall (41a) extending axially and a cylindrical second wall (41b) extending axially in alignment with the first wall, and in that the rotor shaft comprises: —a first surface (21) extending axially and cooperating with the first wall of the bore to centre the connecting piece around the rotor shaft; and—a second cylindrical surface (22) extending axially and provided with knurling, with a diameter (A) greater than the diameter (A′) of the second wall of the bore, the connecting piece being force-fitted onto the rotor shaft by means of the knurling.

A battery management apparatus for a vehicle includes a battery, an alternator, a battery detection unit, a battery controller generating an initial state of charge by using initial state information of the battery at startup, generating an internal resistance of the battery using a voltage value and a current value of the battery, generating a first state of charge by using a driving state information of the battery, a battery charging efficiency, and the initial state of charge when the startup is off, generating a second state of charge by using the off state information of the battery when the off time after the start-off is greater than or equal to the reference time, and resetting the battery charging efficiency based on the first and second state of charge, and a vehicle controller for receiving the battery charging efficiency from the battery controller, and controlling the alternator based thereon to charge the battery.

An alternator includes an exciter field device generating an exciter magnetic field in a first air gap, an exciter armature device configured to rotate with respect to the exciter magnetic field and impart a first voltage in a first set of coils at the first air gap, a main stator device including a second set of coils, and a rotor field device configured to be energized by the first current in the first set of coils and generate a main magnetic field that imparts a second voltage on the main stator device at a second air gap. The main stator device and the exciter field device lie in on a common plane normal to an axis of rotation, and the exciter armature device is inwardly spaced from the exciter field device, main stator device, and the rotor field device.

There is provided a combustion engine and an electric generator. The combustion engine comprises an engine housing, a cylindrical member configured to rotate about an axis within a cavity of the engine housing, a piston, and an engagement section for engaging the piston. The piston is mounted to the engine housing and the engagement section is mounted to the cylindrical member, or the piston is mounted to the cylindrical member and the engagement section is mounted to the engine housing, such that the piston and the engagement section periodically rotate past one another as the cylindrical member is rotated within the engine housing. The piston engages the engagement section as they rotate past one another, the engagement forcing the piston to compress gases in a combustion chamber, which fire to drive the rotation of the cylindrical member. The electric generator may be driven by the combustion engine.

A method of generating electric power includes expanding a flow of exhaust gas from a combustion process as the exhaust gas passes through a turbo-expander disposed on a turbo-crankshaft. The flow of exhaust gas from the turbo-expander is routed through an absorber section of an open cycle absorption chiller system. Water from the exhaust gas is absorbed via a first refrigerant solution disposed in the absorber section as the exhaust gas passes through the first refrigerant solution and out of the absorber section. The flow of exhaust gas from the absorber section is compressed as the exhaust gas passes through a turbo-compressor disposed on the turbo-crankshaft. Electrical power is generated from a bottoming cycle generator disposed on the turbo-crankshaft.

A diesel generator with an improved load capacity according to one embodiment may include a generator body including a field magnet and an armature, and configured to convert rotational energy of a diesel engine main body into electric energy; and an automatic voltage regulator configured to control power supplied to a field winding and to control output voltage of the generator body. The automatic voltage regulator is driven by a power supplier configured to supply constant voltage or current based on power storage and conversion. According to the present disclosure, the diesel generator may have a load capacity without a PMG.

A bottoming cycle power system includes a turbine generator and an open cycle absorption system. The turbine-generator includes a turbo-expander and turbo-compressor disposed on a turbo-crankshaft. The turbo-expander is operable to rotate the turbo-crankshaft as a flow of exhaust gas from a combustion process passes through the turbo-expander. The turbo-compressor is operable to compress the flow of exhaust gas after the exhaust gas passes through the turbo-expander. The open cycle absorption chiller system includes an absorber section that is operable to receive the flow of exhaust gas from the turbo-expander. The absorber section includes a first refrigerant solution that is operable to absorb water from the exhaust gas as the exhaust gas passes through the first refrigerant solution. The absorber section is also operable to route the flow of exhaust gas to the turbo-compressor after the flow of exhaust gas has passed through the first refrigerant solution.

A two cycle-opposed piston, two cycle, homogenous charge compression ignition engine with cylinder sets, each cylinder set having a first cylinder with an intake port; a second cylinder coaxially aligned with the first cylinder and having an exhaust port; a first piston engaged within the first cylinder; a second piston engaged within the second cylinder; a combustion chamber formed between the first piston and the second piston; a first cam mechanically engaged with the first piston; a mechanical device to convert reciprocating motion to rotational motion connected to the second piston; and a charge pump connected to the intake port by an intake passage.

In a combined power system, a rotating shaft of a rotating electric machine includes a hollow cylindrical outer shaft and an inner shaft inserted into the hollow interior part of the outer shaft. The inner shaft includes a projecting distal end exposed from the outer shaft. On the projecting distal end, a rotational parameter detector, a retaining member and a restraining member are disposed. The retaining member supports the rotational parameter detector at the projecting distal end. Further, the inner shaft is restrained to the outer shaft by the restraining member.

The invention was conceived to facilitate in the advancement in internal combustion engine driven generators. Generators today consist of either an inverter generator design or a synchronous alternator design. Both designs have their advantages and disadvantages. The inverter generator offers very precise AC power output, lower noise level, and lower fuel consumption rates but can’t handle heavy inductive loads well. The synchronous alternator offers slightly less precise AC power output, greater noise level, higher fuel consumption rates but can power heavy inductive loads very well.

The invention incorporates both, known inverter generator design and known synchronous alternator design, connected to an internal combustion engine, to form a hybrid generator design. The hybrid dual generator/alternator design makes it possible for the invention to capitalize on all the advantages of both inverter generator and synchronous alternator designs, while eliminating all the disadvantages of both inverter generator and synchronous alternator designs.