36results about How to "Reduce power transmission losses" patented technology

Microscopic batteries, integratable or integrated with and integrated circuit, including a MEMS microcircuit, and methods of microfabrication of such microscopic batteries are disclosed.

A single-band type metallic belt wound between annular V-grooves of a drive pulley and a driven pulley is provided. The metallic belt includes a metal endless band having at least one layer, and a plurality of metal push blocks engaged and superimposed on the band in a manner enabling sliding in a longitudinal direction of the band. The push block includes a body formed by bending a single wire material and subsequently performing pressing so as to have two outer side surfaces defining side contact surfaces that are inclined to respectively make frictional contact with two inner surfaces of the annular V-grooves. A pair of pillars respectively extend along extensions of the two contact surfaces of the body and have an outer surface that is continuous with the side contact surfaces of the body. A pair of opposed hooks extend. The outer side surface of the push block that makes frictional contact with the V-grooves include an oil film breaking portion. An opening is defined by the pair of hooks, and a band holding surface is formed on the body in the opening. The band is inserted in the opening of each push block and held on the band holding surface. A metal retainer is arranged on an outer surface of the band in a manner engageable with the pair of hooks to ensure engagement between the band and the push blocks. A ring is attached to the outer surface of the retainer to prevent deformation of the retainer.

This invention discloses a direct drive spindle assembly including a main fork formed by a base and a parallel pair of spaced fork arms and rotated about a first rotational axis. Moreover, the direct drive spindle assembly includes a first drive established by a hollow housing, a first motor stator and a first motor rotor, wherein the first motor rotor coupled with the base of the main fork drives the main fork to rotate about the first rotational axis. Furthermore, the direct drive spindle assembly includes a second drive contained in a room between the fork arms of the main fork and established by a second motor stator concentric with a second rotational axis, a second motor rotor and a rotor transmission ring, wherein the second rotational axis is perpendicular to the first rotational axis and the second motor stator is coupled with the fork arms of the main fork. In addition, the direct drive spindle assembly includes a spindle box having an orthogonal cross structure. A first arm of the rotor transmission ring is coupled with the second motor rotor and a second arm of the structure is connected to a spindle head. The feature of the present invention is that after the second drive is fit in the room between the above-mentioned paired fork arms of the main fork and then combined with the base of the main fork and firmly locked in the right position, the whole structure can achieve preferred precision.

The generator of the present invention is a complete 220V or 120V AC solar electrical generator that is ready to be directly connected to utility power grid, and more than one of the generators can be connected in parallel to power the grid or to power an isolated electrical system. The generator is integrated with a solar panel that converts solar energy into electrical energy, a Max Power Point Tracking (MPPT) controller that dynamically adjust the output power of the generator to maximize the power of the solar energy, a high efficiency low harmonic digital signal process (DSP) technology based synthetic DC to AC converter that provides 220V or 120V AC power, a synchronizing controller that enables the generator to be connected to the utility power grid or connected to other generators, a power factor compensation unit that reduces the reactive power to improve power quality, a protection unit to prevent the generator from hazardous accident, an energy meter that measures the energy generated by the solar panel and the energy feed into the utility power grid, and a communication unit that sends the parameters such as the voltage, the current, the temperature of the solar panel, the efficiency and related data of MPPT, the timing of AC power and the other information about the generator to the other generators and central controller and receives the information and control commands from the other generators and central controller through AC wire or wirelessly. The generator can be optionally to be equipped with proper battery for some isolated applications.

A linear transfer mechanism includes a guide member, a transfer carriage movable along a horizontal linear transfer path provided on the guide member, and a drive mechanism provided with a drive pulley and an output belt wound around the drive pulley for reciprocating movement in a reciprocating movement section in parallel to the transfer path. The transfer mechanism also includes a drive source for driving the drive pulley. The transfer carriage is connected with the output belt of the drive mechanism by a connecting member. Both the drive mechanism and the drive source are supported by the guide member.

A vehicle motive power transmission apparatus includes: a planetary gear device; an oil pump for sucking oil present in an apparatus case; a one-way clutch that transmits normal-direction rotation output of the planetary gear device to the oil pump, but does not transmit reverse-direction rotation output of the planetary gear device to the oil pump; an oil tank which is provided in the apparatus case, and which is provided with a first introduction portion that receives oil that is splashed upward as a gear in the apparatus case rotates in a normal direction, and a second introduction portion that receives oil that is splashed upward as the gear rotates in a reverse direction; and an oil passageway that supplies the planetary gear device with oil present in the oil tank or oil sucked by the oil pump.

Provided is a charging and discharging device that does not need to use a high voltage capacitor even if a shielding switch is provided in an assembled battery for the sake of convenience of maintenance, and the like. The charging and discharging device includes: capacitors for connecting control terminals of adjacent circuit blocks, the shielding switch interposed between the adjacent battery modules, and a transformer interposed between the control terminals corresponding to the adjacent battery modules.

A power unit which makes it possible to reduce power transmitted from a prime mover to a driven part via an electrical path, to thereby increase the efficiency of driving the driven part. A first rotating machine of the power unit inputs and outputs energy between a stator and first and second rotors thereof, via magnetic circuits formed by generation of a rotating magnetic field, and the rotating magnetic field, and the rotors rotate while maintaining a linear relation in which respective differences in rotational speed between the rotating magnetic field and the second rotor, and between the second and first rotors are equal. The rotors are mechanically connected to a prime mover and a transmission, respectively. A second rotating machine of the power unit is mechanically connected to a drive part without via the transmission, and electrically connected to the stator.

A vehicle includes a vehicle interior, a battery provided below the vehicle interior with a floor panel in between, a front room provided in front of the vehicle interior with a dashboard in between, a charging port disposed in the front room, and a junction box which electrically connects a first power line extending from the charging port and a second power line extending from a power line connection portion of the battery. The junction box is disposed on a virtual line connecting the charging port and the power line connection portion in a side view.

A running toy having: a direct current motor for steering which is remote controlled; and a steering arm to change a direction of a wheel, the steering arm being operated from side to side with respect to a vehicle body by a power of the direct current motor for steering, wherein a rack tooth is formed on the steering arm, the direct current motor for steering is allowed to perform a normal rotation and a reverse rotation, and a pinion gear which meshes the rack tooth is attached to a shaft of the direct current motor for steering via a centrifugal clutch.

The invention relates to a hub drive device for a vehicle and a hub drive vehicle. The hub drive device comprises a motor, a first retarding stage, a second retarding stage and a hub. The torque of the motor is transmitted to the hub through the first retarding stage and the second retarding stage, wherein the first retarding stage and the second retarding stage are designed into planetary gear transmission mechanisms with the same rotating axis, and the torque output end of the first retarding stage and the torque input end of the second retarding stage are in anti-torque connection. A rotorof the motor also has the same rotating axis as that of the first retarding stage and that of the second retarding stage, and the rotor is in transmission connection with the first retarding stage. The hub has the same rotating axis as that of the second retarding stage, that of the first retarding stage and that of the rotor, and the hub penetrates through the second retarding stage, the first retarding stage and the rotor in sequence. According to the hub drive device and the hub drive vehicle,a large transmission ratio can be obtained through a short transmission chain, energy loss is reduced, and the whole compactness and the stability of the hub drive device are improved.

The invention discloses a low-loss power cable. The low-loss power cable comprises a conductor material layer, an XLPE insulating layer, a metal shielding layer, a wrapping lining layer and a flame-retardant outer sheath layer which are sequentially arranged from inside to outside. The invention further discloses a manufacturing method of the low-loss power cable. The manufacturing method comprises the following steps: S1, forwardly and backwardly twisting high-strength low-loss conductor material wires to form a conductor material layer of the power cable; S2, pulling microporous modified cross-linked polyethylene out of the surface of the conductor material layer through extrusion equipment to serve as the XLPE insulating layer; S3, winding an Al-Si alloy ribbon outside the XLPE insulating layer as a metal shielding layer; and S4, extruding a layer of modified polytetrafluoropropene in the periphery of the metal shielding layer to serve as a wrapping lining layer. The invention alsodiscloses an application of the low-loss power cable in a high-speed railway cable and/or a submarine cable. The cable has the characteristics of low resistance loss, low dielectric loss, low sheath loss and the like.