Abstract: An auxiliary power system includes an engine balance system, an integrated alternator/starter, a thermal management system, noise-vibration-harshness control system, an emissions/fuel economy system, an APU master control unit, and a vehicle control system.

Abstract: An electrically controlled actuator includes a rotor detachably mounted on a rotating shaft, and a stator disposed around the rotor. A fluid flow plate is mounted on the rotating shaft and opens/closes a fluid passageway. A spiral spring is mounted on one end of the rotating shaft. When the rotor is rotated, the fluid flow plate regulates a fluid flow in the fluid passageway. An electrical control current is received in the actuator and is converted to a magnetic torque to rotate the rotor, while the spiral spring is increased in tension. The spiral spring opposes the rotation of the rotor so as to control the position of the fluid flow plate. The rotor includes two symmetric tips extended from two curved outer surfaces at two leading edges of the rotor. An air gap is defined between the inner surfaces of the stator and the outer surfaces of the rotor. The air gap becomes narrower when the rotor is rotated into a space between two poles of the stator.

Abstract: An integrated power system includes an engine/generator power supply integrated with storage batteries to provide household-like AC power. For a small load demand, the storage batteries are used to provide electricity. For a large load demand, the engine/generator starts to supply electricity. The engine/generator also recharges the storage batteries if the load demand is smaller than the engine/generator maximum load capacity. For a larger load demand, both the engine/generator and the storage batteries supply electricity in parallel. The engine speed is variable for various loads. The bigger the load, the higher the engine speed is required to produce the necessary power and keep a constant high DC voltage.

Abstract: An electric switch includes a plurality of moveable contacts and a plurality of stationary contacts which firmly contact with the moveable contacts in a normal closed position by a spring, such as a leaf spring or a compression spring. The electric switch further includes a locking member which is disposed between two adjacent moveable contacts. When a "fault" current passes through the moveable contacts and the stationary contacts, a repulsive force is caused at the contact tips such that it tends to open the contact between the moveable and stationary contacts. The "fault" current also causes adjacent moveable contacts to attract to each other thus has tendency to open the contact. The locking member which is disposed between the neighboring moveable contacts engages with the moveable contacts so as to maintain the contact between the moveable contacts and the stationary contacts. The locking member has two oblique surfaces, one on each side, to face to the moveable contacts.

Abstract: A method and apparatus for reducing electromagnetic emissions from switching-type battery chargers safely and at low cost. The method and apparatus generally comprises enclosing the battery charger in a conductive metal case, electrically and physically isolating the low voltage, high current output components from the remainder of the circuitry, reducing the loop area of the output circuit, use of ferrite beads on various conductors, use of an output common-mode inductor wound within a ferrite core, use of inductors and transformers having foil windings, and use of a fusible resistor to protect internal circuitry. The battery charger includes a secondary assembly printed circuit board and a primary assembly printed circuit board which are supported in a spaced apart, substantially parallel arrangement.

Abstract: A system for regulating fuel flow in a fuel line from a supply of fuel to an engine, comprising: a fuel regulator disposed in the fuel line intermediate of the engine and the fuel supply regulating the flow of fuel to the engine; vacuum lockoff apparatus, disposed in the fuel line intermediate of the fuel regulator and the fuel supply and connected to the engine by an air passageway, sensing a partial vacuum condition at the engine, the vacuum lockoff means allowing flow of fuel in the fuel line when a partial vacuum condition is sensed and prohibiting flow of fuel in the fuel line when the partial vacuum condition is no longer sensed; one way check valve, disposed intermediate of the engine and the vacuum lockoff means in the air passageway, maintaining partial vacuum condition at the vacuum lockoff means; and bypass valve means, connected to the air passageway so as to provide an air passageway bypassing the one way check valve, for allowing restricted flow of air to the vacuum lockoff apparatus whereby the

Abstract: An engine driven generator set system includes a generator which includes a rotor and a stator which rotate in opposite directions so that vibratory roll torques are eliminated during generator set operation.

Abstract: A circuit and a method for controlling excitation current to the field winding of a generator or motor. An uncontrolled current source supplies sufficient excitation current to maintain the generator output voltage at a level slightly below the seated voltage when no load is present. A controlled current source compensates for generator loading to supply additional excitation current sufficient to raise the output voltage to approximately the rated voltage.

Abstract: An auxiliary power system includes an engine balance system, an integrated alternator/starter, a thermal management system, noise-vibration-harshness control system, an emissions/fuel economy system, an APU master control unit, and a vehicle control system.

Abstract: An engine generator set apparatus including an internal combustion engine including a drive shaft driving an electrical generator, the engine and the generator being disposed along a longitudinal axis. A housing substantially enclosing the engine and generator, the housing including air inlets and air outlets. A fan drawing outside ambient air through the air inlets in the housing and along an inlet air pathway, the generator being axially disposed intermediate of the fan and the engine.

Abstract: A generator engine set includes a brush partition for separating a space defined between an air blower housing and an enclosure into two areas so that an air flow from one area to the other area is substantially prohibited. The brush partition includes a flexible bristle portion and a rigid spline portion. The spline portion is retained in a receiving member on an outer surface of the air blower housing by a clip. The bristle portion extends toward the enclosure and engages an inner surface of the enclosure. Accordingly, a warmed air flow is prohibited from recirculating back into cooling air inlets.

Abstract: An electrical generator system integrated controller device utilizing PID control and capable of regulating voltage or current, and frequency simultaneously. The device utilizes a micro-controller (30.1) to monitor the engine generator set (20), then determines the appropriate signal to deliver to the electrical generator set (20) to regulate the engine throttle (21) and the generator (22) field windings. The micro-controller (30.1) also provides for real and reactive load sharing with additional generator sets (40) while also providing for an integrated circuit interrupter module (500) to open the line from the generator (22) to the load bus (42). Additionally, serial communications (34) are provided as well as displays (35), meters (37), and operator input (36). Finally, the permissive paralleling module (700) provides that the engine electrical generator set (20) will not be allowed to be connected to the load bus (42) until standards of voltage and phase have been achieved for a set period of time.

Abstract: A multiple-cylinder combustion engine includes a counter rotating system eliminating any vibratory pitch, yaw, and roll torques. The net angular momentum of all rotating parts in the engine is equal to zero. The multiple-cylinder combustion engine activates or deactivates the number of the cylinders without any additional pitch, yaw, and roll torques.

Abstract: The present invention is directed to an auxiliary power unit for use with a vehicle, typically a truck. The truck has a cab and a sleeper to which the auxiliary power unit provides auxiliary air conditioning and heating. The truck also has a cab evaporator, a sleeper evaporator, a compressor, a condenser, and a plurality of refrigerant lines, a cab heater, a sleeper heater, and a plurality of coolant lines. The auxiliary power unit has an auxiliary evaporator and a plurality of auxiliary refrigerant lines. The auxiliary evaporator is arranged in series with the sleeper evaporator and the sleeper heater. The auxiliary refrigerant lines are separate and distinct from the truck's plurality of refrigerant lines. The auxiliary power unit also has a plurality of auxiliary coolant lines which are interconnected with the truck's plurality of coolant lines.

Abstract: A power supply assembly for converting input power into desired output power comprises a plurality of printed circuit boards each having oppositely facing front and back major surfaces. The back major surfaces of the first and second circuit boards are substantially devoid of the electrical components. The power supply assembly further includes a heat sink disposed adjacent to the first and the second circuit boards, an electrically conducting spline member, which is disposed between the first and second circuit boards, being attached to the heat sink, and a plurality of connectors electrically connecting the first and second circuit boards.

Abstract: A method and apparatus for reducing electromagnetic emissions from switching-type battery chargers safely and at low cost. The method and apparatus generally consists of enclosing the battery charger in a conductive metal case, electrically and physically isolating the low voltage, high current output components from the remainder of the circuitry, reducing the loop area of the output circuit, use of ferrite beads on various conductors, use of an output common-mode inductor wound within a ferrite core, use of inductors and transformers having foil windings, and use of a fusible resistor to protect internal circuitry.

Abstract: The present invention is directed towards an electrical switch. The switch has a first board to which input and output leads are attached proximate one end of a plurality of buses on the first board. Proximate the other ends of the plurality of buses are electrical contacts. The switch also has a second board which is interchangeably attachable to the first board. The second board includes a plurality of electrical buses that are selectively arranged to electronically connect the contacts on the first board. The connections electrically connect the input and output leads on the first board to provide a predetermined arrangement of electrical connections.

Abstract: A dynamo assembly comprising a stator assembly and rotor assembly as shown. The preferred rotor assembly comprises two end caps, a single wire strand, a collector ring assembly and a plurality of laminants. The two end caps are preferably identical to one another, and oriented with the wire wrapped in two coils therearound. The laminants are supported between the two end caps, in a skewed manner. An advantageous arrangement for engagement between the collector ring assembly and wire held on the end caps is provided. A unique method of molding the collector ring assembly without internal inserts is also disclosed.

Abstract: An apparatus as a secondary vibration isolation system for use in mounting a mechanism having a vibrating element, a housing and a primary vibration isolation system to a separate structure. The apparatus is comprised of a hanging element attached to the separate structure, a secondary vibration isolator for dampening the vibration transmitted from the mechanism to the separate structure, and a securing element to secure the mechanism to the hanging element so that the secondary vibration isolator is positioned between the mechanism and the hanging element.