121 results about "Stator" patented technology

A non-rotary case to which the motor stator of an inwheel motor is fixed is connected to a knuckle which is a part around the wheel of a vehicle by a first elastic member, a rotary case to which the rotor of the motor is fixed and rotatably connected to the non-rotary case through a bearing is connected to the wheel by a second elastic member so as to float-mount the inwheel motor to parts around the wheel.

A large convoluted space, such as a multi-story concourse of an airport is isolated and a chemical or biological agent in the concourse is deactivated. A plurality of deactivation gas sources (100) introduce a deactivation gas at multiple points along the concourse. Fans (66, 106) circulate the deactivation gas, sensors (110) sense concentrations of the deactivation gas at numerous points around the concourse and exhaust fans (66) exhaust air, spent deactivation gas, and some deactivation gas. A control processor (84) controls the generators, the circulation fans, and the exhaust fans in accordance with the gas concentrations sensed by the sensors to increase and decrease deactivation gas concentration in selected subregions of the concourse by increasing or decreasing generation, increasing or decreasing exhausting, or altering flow patterns among subregions.

A motor. The motor includes a stator, a rotor, a top magnetic structure, and a bottom magnetic structure. The stator is disposed in a frame. The rotor is also disposed in the frame, corresponding to the stator. The rotor comprises a shaft, extended axially from the rotor. The shaft does not contact the stator or the frame. The bottom magnetic structure is at the bottom of the frame. The top magnetic structure is on the top of the frame. The top and bottom magnetic structures are opposite to each other in an axial direction. Magnetic attraction generated between the first magnetic structure and the second magnetic structure attracts and positions the shaft therebetween such that the first magnetic structure, the second magnetic structure, and the shaft are coaxially aligned.

A motor includes a base, a stator, a bearing, a positioning member and a rotor. The base includes a shaft tube. The stator is mounted around the shaft tube. The bearing is received in the shaft tube. The positioning member is fixed to an end of the shaft tube and has a pressing portion to prevent movement of the bearing in the shaft tube. A plurality of retaining plates is formed on the positioning member. Each retaining plate has a retaining end. The rotor includes a shaft having an annular groove formed in an outer periphery thereof. The retaining ends of the retaining plates are in the annular groove to avoid departure of the rotor from the base. Consequently, by a single-component design of the positioning member, departures of the rotor and the bearing are both avoided.

In a method of manufacturing a self-start synchronous motor for preventing deterioration of permanent magnets used in a rotor, and also for enhancing the efficiency of the self-start synchronous motor, the self-start synchronous motor comprising a stator having a stator core and windings wound around the stator core, and a rotor having an outer diameter slightly smaller than an inner diameter of the stator and arranged inside of the stator. The rotor is provided with a rotor core, a plurality of conductor bars embedded in the outer peripheral portion of the rotor core over an entire periphery thereof, end rings provided on opposite end sides of the conductor bars and constituting a squirrel cage conductor in cooperation with the conductor bars, and a plurality of permanent magnets embedded in the rotor core and arranged at a position inner than that of an inner peripheral surface of the conductor bars. Further, the conductor bars and the end rings are electrically and mechanically joined together through frictional agitation joint.

Cooling of the end windings on a stator of the electric motor can be made more uniform if a physically-compliant, thermally-conductive cap is placed over the end windings. In one embodiment, a liquid coolant is sprayed on the outside of the cap. The cap serves to make the temperature more uniform in the end windings. In an alternative embodiment, a cover is placed over the cap with a coolant jacket formed between the cap and the cover. A coolant, such as transmission fluid or engine coolant, can be circulated in the coolant jacket.

An improved axial gas bearing for a gas-driven NMR MAS sample rotor is disclosed that utilizes inward flow with a low rotational component over a rotor conical end. A conical flow region is formed between the rotor conical end and a conical stator bearing surface such that the included angle defining the stator surface is not less than the included angle defining the rotor conical end. Gas is injected radially inward with a significant axial rearward component from a number of small holes at high velocity from the periphery into the conical flow region. Compared to the radial velocity components, the tangential flow components of the injected gas are small and preferably opposed to the direction of the rotor rotation. The high and accelerating negative radial velocities may result in significant Bernoulli effect, such that the mean axial pressure over the conical rotor end may be less than atmospheric pressure for a given axial clearance, but as the clearance decreases, the hydrostatic effects exceed the Bernoulli effects and the mean axial pressure over the conical rotor end may then exceed atmospheric pressure by a substantial amount. Thus, a self-stabilizing axial bearing is formed with improved stability and stiffness for rotor surface speeds up to at least 80% of the speed of sound. Motive power required to spin the rotor may be provided by a radial-inflow microturbine at the opposite end of the rotor in a way that is readily compatible with automatic sample change.

A stator includes a stator core that has at least one tooth which extends radially inward from the stator core and has a shape of a quadrangular prismoid, an insulator that is made of a resin, and a coil that is formed by winding a rectangular wire around the tooth via the insulator. The insulator has a thickness which varies depending on a relative positional relationship between the rectangular wire and the tooth, or the coil is formed in a staircase configuration to conform to the quadrangular prismoid shape of the tooth and the insulator has a varying thickness to conform to the staircase configuration.

A wind power station comprises a wind rotor; a transmission mechanically coupled to the wind rotor; an asynchronous generator having a generator rotor mechanically coupled to the transmission, and a generator stator electrically coupled to a power grid; and a protection unit protecting the generator and the transmission against accidental breakdowns of an alternating voltage provided by the power grid. The Protection unit includes at least one choke electrically arranged between the power grid and the generator stator, and a synchronous electrical machine electrically coupled to the choke.

A method for assembling a gas turbine engine is provided. The method comprises coupling a first turbine nozzle within the engine, coupling a second turbine nozzle circumferentially adjacent the first turbine nozzle such that a gap is defined between the first and second turbine nozzles and providing at least one spline seal including a substantially planar body. The method also comprises forming at least one catch to extend outward from the body portion of the at least one spline seal, and inserting the at least one spline seal into a slot defined in at least one of the first and second turbine nozzles to facilitate reducing leakage through said gap, such that a portion of the at least one spline seal is received within a recess defined within the turbine nozzle slot to facilitate retaining the at least one spline seal within the turbine nozzle slot.

A flow discouraging system includes a stator assembly, a rotor assembly, and a plurality of fingers. The stator assembly includes one or more stationary components forming a side wall, the side wall including an annular groove defined by an outer axially-extending surface, an inner axially-extending surface, and a radial surface extending between the outer and inner axially-extending surfaces. The rotor assembly is disposed adjacent to and spaced apart from the stator assembly to form a portion of a cavity and includes an annular rim extending at least partially into the annular groove. The plurality of fingers is disposed in the annular groove and extends from the one or more stationary components the annular rim.

The invention discloses a motor stator heat radiation structure. A motor comprises a housing, a stator core disposed in the housing and a motor winding wound on the stator core. The housing is internally provided with multiple heat conduction pipes each with two enclosed ends, the housing is provided with multiple vertical cooling channels, an upper horizontal radiating pipe and a lower horizontal radiating pipe of each heat conduction pipe are embedded into the stator winding, and vertical cooling pipes of the heat conduction pipes are disposed in the cooling channels. According to the invention, the heat conduction pipes are additionally arranged for heat dissipation, the original heat dissipation effect of the motor for the stator core is maintained, at the same time, heat generated by the stator winding is directly brought into the water channel of the housing by the heat conduction pipes through the end portion of the stator winding, and finally cooling media in the cooling channels bring the heat of the motor out. Under the condition that an original motor structure is not substantially changed, the heat dissipation performance of the whole motor is improved, the structure is simple, the cost is quite low, and the stability and the safety of the motor are greatly improved.

The invention discloses a stator for a motor, a manufacturing method thereof, the motor and a compressor. The stator comprises a stator core and a stator winding. A plurality of stator grooves are formed on the stator core at intervals in the peripheral direction. The stator winding comprises a plurality of stator conductors. Each stator conductor is roughly in a U shape. The two ends of all the stator conductors are inserted into the stator grooves respectively and connected with one another to form the stator winding. The stator conductors are arranged in the radial direction of the stator core. The number of slots of each pole and each phase of the motor is q, wherein the q is larger than and equal to 2. According to the stator for the motor, the stator winding including the roughly-U-shaped stator conductors is adopted, the stator conductors are arranged in the radial direction of the stator core, the number of the slots of each pole and each phase of the motor is larger than or equal to 2, when the motor with the stator is applied to the compressor, the energy efficiency of the compressor can be improved, and the vibration noise of the compressor is lowered.

Disclosed are an electric motor and a simplified variable speed drive system which renders the use of filtering components in a motor drive circuit unnecessary and increases torque transfer from permanent magnets of the rotor to the output shaft. The motor includes a fluid gap between the rotor and the stator configured to receive a cooling fluid, such a refrigerant. A plurality of radially-abutting, bread loaf-shaped magnets having a flat base are respectively fixed to a plurality of longitudinally oriented mounting facets provided on the shaft to provide maximum torque transfer from the magnets to the shaft. An eddy shield disposed between the faceted shaft and the magnets thermally shunts high frequency harmonics from the magnets to the shaft and cooling fluid. The rotor components are mechanically secured by a sleeve disposed around the rotor.

An enhanced counter-rotating electric motor and an associate propulsion system for use with a water-vehicle includes a motor housing, a stator within the housing that rotates about a central axis in one direction, an armature within the stator that rotates about the central axis in an opposite direction from the stator, a first axel that is secured to the stator and extends out from the housing, a second axel that is secured to the armature and extends out from the housing, water-tight rotational seals about each of the two axels, a centrifugal-force-balancing electrical connection mechanism that supplies functioning electrical communication between the motor and external electrical circuitry while operating the motor, and a propeller secured to each said axel.

The invention discloses a high-shear reactor with a feed distribution device. The high-shear reactor comprises a reactor shell, wherein a first feed pipe is arranged on the top wall of the reactor shell; a stator substrate is arranged on the inner surface of the lateral wall of the reactor shell; stator gear rings are arranged on the lower surface of the top wall of the reactor shell and the lower surface of the stator substrate; a main transmission shaft is arranged along the central line of the reactor shell; a rotor substrate is arranged on the main transmission shaft; a rotor gear ring is arranged on the upper surface of the rotor substrate; the stator gear rings and the rotor gear ring are engaged with each other; a discharge port is arranged on the lower end of the reactor shell; the inner surface of the innermost gear ring of a primary stator gear ring is fixedly connected on the periphery of the feed distribution device which is connected with a second feed pipe; and the second feed pipe passes through and is arranged on the top wall of the reactor shell. The reactor is suitable for a quick reaction system by which solid can be generated, can prevent quick growth of solid particles from plugging the reactor, and is particularly suitable for preparing organic isocyanate.

The present invention is a method and apparatus used to transmit information to the surface from a subsurface location during the process of drilling a bore hole comprising a pressure pulse generator or “pulser” coupled to a sensor package, a controller, an active electromagnetic system for subsurface collision avoidance, and a battery power source all of which reside inside a short section of drill pipe close to the bit at the bottom of the bore hole being drilled wherein the apparatus or “MWD Tool” can be commanded from the surface to make a measurement of desired parameters and transmit this information to the surface by encoding data in pressure pulses generated by a pulser valve that includes a stator and a rotor which may be open and closed to create pressure pulses.

In a stator manufacturing method to manufacture a stator in which divided-core assemblies are arranged in a cylindrical shape, each of which includes a divided-core member having a teeth portion on which a coil is wound. In this method, the divided-core assemblies are inserted in the cylindrical shape into a fixed mold, resin sheets containing glass fibers or carbon fibers are disposed on coil-end portions of the cylindrically-arranged divided-core assemblies, and a slide part of a movable mold applies pressure to and molds the resin sheets, thereby combining the divided core assemblies into a single unit. The movable mold is operated to position the divided-core assemblies in place by a cylindrical part and then apply pressure to and mold the resin sheets by the slide part.

Full automatic washing machine, and method for controlling the same, the full automatic washing machine including a spinning tub 2 movably fitted in an outer tub 1, a pulsator 3 rotatably fitted in the spinning tub 2 to be rotatable independent from the spinning tub 2, a spinning shaft 5 rotatably supported on a shaft bearing case 20 for transmission of a rotating power to the spinning tub 2, a washing shaft 4 for transmission of the rotating power to the pulsator 3, a BLDC motor 7 having a rotor 7b and a stator 7a for rotating the rotor 7b as power is applied to the stator 7a, and a clutch mechanism for switching a power transmission path of the BLDC motor 7 either to the washing shaft 4 or to the spinning shaft 5 in correspondence to a washing cycle, or a spinning cycle, thereby permitting noiseless, and stable switching of the rotation power within a short time when the rotating power is transmitted to the pulsator or the spinning tub from a driving part having the stator and the rotor.

The invention relates to a motor punching manufacture apparatus and a stator punching and rotor punching sorting device thereof. The stator punching and rotor punching sorting device comprises a punching conveyer channel for horizontally conveying a stator punching and a rotor punching, the tail end of a conveying travel of the punching conveyer channel is provided with a stator punching exit, the channel bottom of the punching conveyer channel is provided with a rotor punching discharge port upstream of the stator punching exit, with the rotor punching discharge port used for passing a rotor punching from top to bottom, and the rotor punching discharge port is less than the stator punching in size; the problem that manual sorting of stator punchings and rotor punchings results in high labor intensity and low sorting efficiency is solved.

The invention relates to a small centrifugal water pump with an impeller directly driven by an internal rotor motor, comprising the motor and a pump structure, wherein the motor comprises a rotor, a stator core surrounding the rotor and a winding installed on the stator core; the pump structure comprises the impeller rotatably coupled with the rotor on the same axis and a scroll surrounding the impeller and also comprises a metal body which is in tight contact with the stator core and is provided with an inner cavity; the end face at the side of the metal body, facing the scroll, is vertical to the axis and is provided with at least 2 interfaces penetrating through the inner cavity; the end face at the side of the scroll, facing the motor, is vertical to the axis and is provided with openings penetrating through the inner cavity of the scroll; the number of the openings is same as that of the interfaces; the end face at the side of the metal body, facing the scroll, is in butt joint with the end face at the side of the scroll, facing the motor; and the interfaces and the openings are connected one to one. Due to the design, conduit connection in the traditional technology is eliminated, the complexity of the structure and processing and mounting is reduced, the problem of water leakage caused by conduit ageing and joint loosening can be eliminated, and the reliability is improved.

The invention discloses a strip steel feeding device for motor stator and rotor production, and relates to the field of strip steel rolling. The strip steel feeding device comprises a supporting tableand unrolling mechanisms. The supporting table is supported through a bracket. The unrolling mechanisms comprise the left unrolling mechanism and the right unrolling mechanism which are distributed on the two sides of the supporting table in a mirror image manner. A rotating motor is arranged at the lower end of the supporting table. A concaved gear groove is formed in the lower end face of the supporting table. Rotating bearings are embedded in the left end face and the right end face of the supporting table, and a drive shaft is arranged between the two rotating bearings in a penetrating manner and penetrates from the interior of the supporting table. A left tensioning adjusting mechanism and a right tensioning adjusting mechanism which are distributed in a mirror image manner are arranged on the front face of the supporting table. The strip steel feeding device is both high in steel feeding efficiency and steel feeding stability, the production efficiency is improved, assembling and disassembling are convenient, and use flexibility is high.