Abstract: An energy efficient vehicle and a disc-type dynamic motor thereof are disclosed. The vehicle comprises front wheels and rear wheels, and a gasoline engine is assembled in the vehicle for driving a generator producing power. The power is transported to a capacitor battery via a circuit control system and then to disc-type dynamic motors, which are assembled with the rear wheels, from the capacitor battery via two power lines respectively, whereby the disc-type dynamic motors directly driving the vehicle travelling at high-speed and high torque via the wheels. Accordingly, the energy efficient vehicle does not include transmission devices, such as the clutch, the transmission, the power transmission shaft, and the differential. The power produced by the generator is directly provided to the disc-type dynamic motors to drive the vehicle travelling and is enough to drive the disc-type dynamic motors, so the vehicle does not need to stop for charging.

Abstract: A wind turbine generator comprising a rotor, a stator and an air gap between a gap-delimiting region of the stator and a gap-delimiting region of the rotor; wherein the rotor and/or the stator are deformable under operational loads and configured in such a way that the air gap resulting from the presence of operational loads is more uniform than the air gap in the absence of operational loads. A method for optimizing an air gap between a gap-delimiting region of a stator and a gap-delimiting region of a rotor of a wind turbine generator, said rotor and/or said stator being deformable under operational loads and said optimization consisting in that the air gap resulting from the presence of the set of operational loads is more uniform than the air gap in the absence of the set of operational loads.

Abstract: Provided is a double-rotor type motor including: a stator; a double-rotor that is positioned at a certain gap on an outer surface and an inner surface of the stator; a rotor support on which the double-rotor is integrally formed and a plurality of air passages are radially penetratively formed; and a heat dissipation unit that is integrally formed with the rotor support and that forcibly ventilates outer air into the air passages during rotation of the rotor, to thereby dissipate heat generated from the stator. Thus, outer air may be forcibly ventilated to the stator, to thereby improve the heat dissipation efficiency of the stator.

Abstract: A ground tether circuit is provided for a power circuit that includes a power source, at least one load and at least one rectifier. The ground tether circuit includes an adjustable voltage converter connected to the rectifier. The adjustable voltage converter includes a positive power switch, a negative power switch, an inductor, a current sensing device and a controller.

Abstract: A relay for a toy track set, the relay having, a first actuator in a first plane; a second actuator in a second plane vertically elevated from the first plane; a conduit fluidly coupling the first actuator to the second actuator; and a release mechanism moveably secured to the first actuator for movement between a first position and a second position wherein movement of the release mechanism from the first position towards the second position causes the first actuator to force a fluid through the conduit, wherein the fluid forced through the conduit by the first actuator causes the second actuator to actuate a second release mechanism, wherein the first actuator is coupled to a first vehicle track segment and the second actuator is coupled to a second vehicle track segment.

Abstract: Disclosed herein is a relay for a toy track set, the relay having: a first actuator; a second actuator; an object coupling the first actuator to the second actuator, the object being releasably received on the first actuator and the object has a mechanism configured to retract a cord into the object, the cord being secured to the second actuator at one end and the mechanism at the other end; a trigger moveably secured to the first actuator for movement between a first position and a second position wherein movement of the trigger from the first position towards the second position actuates the mechanism of the object and the object moves towards the second actuator as the mechanism of the object retracts the cord into the object; and a trigger moveably secured to the second actuator for movement between a first position and a second position wherein movement of the trigger from the first position towards the second position launches an object from the second actuator, wherein the trigger secured to the second

Abstract: A relay for a toy track set, the relay having a first actuator, a second actuator and a conduit fluidly coupling the first actuator to the second actuator. The first actuator having a release mechanism moveably secured thereto for movement between a first position and a second position wherein movement of the release mechanism from the first position towards the second position causes the first actuator to force a fluid through the conduit, wherein the fluid forced through the conduit by the first actuator causes the second actuator to actuate a second release mechanism.

Abstract: An elevated toy train track is formed from multiple platform sections (12, 14, 16, 18) and a stabilizing ring (48) that are attachable together to form a ring-like structure (10). Each platform section has at least two lateral sides (34, 36), where one lateral side (34) has ridges (42) and the other lateral side (36) has slots (46). During assembly, the ridges (42) on one platform section are placed in snug engagement with complementary slots (46) of an adjacent platform section, until all platform sections are joined together. The stabilizing ring (48) is attached, using threaded fasteners (60), to the joined platform sections (12, 14, 16, 18) to form the ring-like structure (10). A train track (20) is attached to the ring-like structure, or can be integrally molded to the platform sections. The structure is attachable to the central pole (64, 66) of a Christmas tree, thus providing an elevated toy train track.

Abstract: An electrical machine with a discoidal structure comprising rotor and stator discs disposed coaxially and having at least two axial air gaps between the rotor and stator discs. The widths of the axial air gaps are measured and sent to a control unit for being compared so that an offset signal can be generated based on the difference between the widths of the axial air gaps. The offset signal is supplied to a drive module for driving a balancing means in order to cancel an axial magnetic force exerted on either the rotor or stator discs. The deterioration of the electrical machine can be reduced.

Abstract: An outer-rotor type electric rotary machine comprises a shaft fixed to a stationary unit, a motor stator, a motor rotor, a cylindrical rotor frame, and first and second brackets attached to rotary members, respectively. At least one of the first and second brackets includes a plurality of heat-radiating fins mounted on its outer peripheral surface, and a plurality of heat-absorbing fins mounted on its inner peripheral surface.