An integrated direct drive motor system for industrial use includes an outer rotor motor axially aligned with, and coupled to, a rotating drum, with no transmission or clutch mechanism between the two so that the drum is effectively an extension of the outer rotor of the motor. An adapter coupler attaches to the motor and the drum to allow the motor to directly drive the drum. In one exemplary embodiment, a flexible curtain is spooled vertically by the drum to control an industrial high-speed roll-up door. In another exemplary embodiment, an endless-loop belt is driven by a horizontally-oriented drum to control an industrial conveyor system. Various embodiments of the integrated direct drive motor system and various method of operation are disclosed.

A tensioner for a hybrid electric vehicle adjusts tension of the belt which is provided to synchronize rotation of a pulley of a starting motor shaft and rotation of a pulley of a crankshaft. The tensioner for a hybrid electric vehicle may include: a base arm, a driving arm pivotably connected with the base arm, and a driven arm pivotably connected with the base arm. The tensioner further includes an actuator operating so as to autonomously vary an entire length so that one end thereof is fixed to the base arm and the other end thereof is connected with the driving arm; a first pulley rotatably connected with the first pulley connecting portion or the driving arm and rolling while contacting the belt; and a second pulley rotatably connected with the second pulley connecting portion of the driven arm and rolling while contacting the belt.

A generator system may include a belt configured to support a transportation load. The belt may be located between a first road segment and a second road segment of a road, wherein movement of the belt may generate motive power. The generator system may also include a generator operatively connected to the belt and configured to convert at least a portion of the motive power into electric energy. The generator system may further include an automatic transmission box configured to translate the at least a portion of the motive power to the generator.

The rotary electrical machine comprises, in front, a pulley (3) secured to a shaft (9) of a rotor (20) passing through the front bearing (1a) of a housing. The bearing includes a base, having a nose (18) for mounting a front ball bearing (7) for rotating the shaft (9), and air inlets (15) defined by arms belonging to an outwardly opening area connecting a peripheral strip of material from the base to the nose (18) in order to shift the nose (18) toward the front in accordance with the central body of a device (100) for adjusting the tension of a belt received in the groove (31) of the pulley (3) and attached onto the housing (1a, 1b). The adjustment device (100) comprises at least one idler (200, 201) for tensioning the belt and a central opening (102) enabling passage of air through the air inlets (15).

A cleaner capable of adjusting tension of a belt to connect or disconnect power between a motor and a wheel in the cleaner including the belt transmitting a driving force of the motor to the wheel is provided. A cleaner according to the present disclosure includes a cleaner body, a wheel which movably supports the cleaner body with respect to a floor, a traveling drive motor which is disposed in the cleaner body, a first pulley which is rotated by a driving force of the traveling drive motor, a second pulley which is rotated when the first pulley rotates and rotates the wheel, a belt which connects the first pulley and the second pulley, and a clutch which adjusts tension of the belt to connect or disconnect power between the first pulley and the second pulley.

A treadmill may include a deck, a first pulley incorporated into the deck, a second pulley incorporated into the deck, a tread belt surrounding the first pulley and the second pulley, a motor in mechanical communication with at least one of the first pulley and the second pulley to move the tread belt in a first direction, and a runaway mitigation mechanism in at least indirect mechanical communication with the motor. The runaway mitigation mechanism at least mitigates a motor runaway condition.

An electric circulatory leverage drive method and apparatus to replace industrial motors in a variety of applications. The invention includes a hubless magnetic gyroscope that creates leveraged rotational torque/horsepower from its perimeter, that is propelled by a circulatory field double helix coil assembly located proximate to the magnetic gyroscope, and that produce both phasing electromagnetic energy in one of its two strands while the second strand returns the unused portion of the electromagnetic fields to the power source as electricity to increase overall efficiency. Connected to the hubless gyroscope is a means to transfer rotation from the gyroscope to the end use. The present invention is capable of replacing conventional electric motors with a more efficient, compact and lightweight alternative.

A treadmill can include a deck, a first pulley incorporated into the deck, a second pulley incorporated into the deck, a tread belt surrounding the first pulley and the second pulley, a drive motor in mechanical communication with at least one of the first pulley and the second pulley to move the tread belt in a first direction, a runaway load component in electrical communication with the drive motor. The runaway load component draws electrical power generated by the drive motor during a runaway motor condition.

A motor assembly may comprise: a motor rotor shaft; and a flange attached to the motor rotor shaft, at least a part of an inner surface of the flange contacted with a first part of a circumferential surface of the motor rotor shaft, wherein the motor rotor shaft comprises: a toothed pulley directly machined on a second part of the circumferential surface of the motor rotor shaft to be coupled with a drive belt, the toothed pulley of the motor rotor shaft having a diameter smaller than the first part of the motor rotor shaft contacting the flange; and a step part disposed between the first and second parts of the motor rotor shaft, the step part of the motor rotor shaft having a diameter gradually increasing from the toothed pulley to the first part of the motor rotor shaft contacting the flange.

According to one embodiment, a rotating electrical machine includes an annular winding, L (L is an arbitrary integer) stator magnetic poles, and L rotor magnetic poles having the same polarity. The L stator magnetic poles are disposed apart from each other in a rotational direction and facing the winding. The L rotor magnetic poles have the same polarity as each other. The L rotor magnetic poles are disposed apart from each other in the rotational direction and configured to face the L stator magnetic poles If an order of the fundamental wave component of a torque pulsation is N, M (ML) distances between centers of the adjacent poles between pole centers in one set of either the L stator magnetic poles or the L rotor magnetic poles are combinations of (, +.sub.1/M, +.sub.12/M, . . . , and +.sub.1(M1)/M), and .sub.1 satisfies the relationship (180/N)<.sub.1<(540/N) in the notation of electrical angle.