146results about How to "Solve the problem of temperature rise" patented technology

The invention discloses an integrative rotatable type adsorber. The adsorber comprises a circular inner cylinder and a circular outer cylinder which have the same mandrel, wherein the middle of the inner cylinder is provided with a baffle plate. The structure of the integrative rotatable type adsorber is equivalent to that of a double-tank adsorber; the center of a top cover (29) of the inner cylinder is provided with a rotating shaft (32), and the rotating shaft (32) is connected with driving equipment by an outlet (3) of the rotating shaft on a top cover (7) of the outer cylinder; the inner side of a bottom cover (25) of the outer cylinder is provided with an annular roller groove (21) which has the same mandrel with the outer cylinder, and an outer layer of the bottom cover of the inner cylinder is provided with a roller (20) matched with the roller groove (21); and a cylinder body (9) of the outer cylinder is provided with a magnetron (27). The adsorption and the recovery of oil gas are realized by the rotatable type adsorber through utilizing the processes of microwave heating and low-vacuum integrated desorption. According to the adsorber, the integration of adsorption and desorption is realized, the structure is simple, and the miniaturization of equipment is realized.

The invention discloses a low-pressure casting method for an automobile motor casing. The low-pressure casting method for the automobile motor casing includes the following steps that (1) a sand core structure of a spiral water channel is manufactured; (2) the sand core structure is placed on a lower mold body of a die-casting mold; (3) the automobile motor casing with the sand core structure of the spiral water channel is cast through a low-pressure casting device; (4) heat treatment is conducted on the automobile motor casing, then sand is vibrated out, and the automobile motor casing is provided with the complete spiral water channel; and (5) holes formed in the original sand core structure portion of the sidewall of the automobile motor casing are filled up through welding, so that the complete automobile motor casing with the spiral water channel is formed. The invention further discloses a motor casing structure. Through the low-pressure casting method for the automobile motor casing, the aluminum alloy low-pressure casting process is adopted and the spiral water channel is cast through the sand core of the spiral water channel, so that the cooling effect on a motor is guaranteed, the service life of the motor is greatly prolonged, the requirement for long-time working of an automobile can be met, and the weight of the whole motor is reduced by about 60%.

The invention discloses a locked rotor frequency conversion control method and device for drive motors. By means of the locked rotor frequency conversion control method and device, entry and exit of locked rotor frequency conversion are judged through the locked rotor rotating speed zone bit and the locked rotor torque zone bit, and therefore the temperature rise problem of a drive controller in the blocked rotor process is effectively solved. Thus, the time spent when a drive motor outputs large torque is prolonged as much as possible, and the load requirement is guaranteed. Meanwhile, the entry time and the exit time of locked rotor frequency conversion are staggered, the vehicle shaking problem under the critical working condition is solved, and driving safety and comfort are ensured.

The invention discloses an oil gas adsorber which comprises an adsorber top cover (16), an adsorber main body (1) and an adsorber bottom cover (3) that are connected through bolts (14), wherein the adsorber top cover (16) is provided with an emptying hole (17), and the adsorber main body (1) comprises a composite adsorbing material (11) and a circulating water jacket (12); the circulating water jacket (12) is provided with a circulating water jacket water inlet (8) and a circulating water jacket water outlet (13); the adsorber bottom cover (3) is provided with an oil gas inlet (2), a drain outlet (4), a vacuum pump port (5), a pressure sensor (6) and a pressure meter (7); and the composite adsorbing material (11) is a mixture of foam metal and an adsorbing agent. In the invention, heat radiation is enhanced through the foam metal, the circulating cooling / heating water jackets is additionally arranged outside the oil gas adsorber to enhance heat transfer, thus the temperature rise problem in the adsorber and the temperature drop problem in a desorber can be effectively solved.

The invention discloses a magneto-electric speed regulator. The magneto-electric speed regulator comprises a permanent-magnet rotor and an electric-magnetic rotor and also comprises a current controller, wherein a uniform and fixed circumferential air gap is formed between the permanent-magnet rotor and the electric-magnetic rotor. By the magneto-electric speed regulator, speed regulation can be achieved on the condition of fixing the air gap, excessively large eddy current can be fed back to power utilization equipment or a power grid, and the problems of temperature rise and efficiency are solved.

The invention relates to a three-degree-of-freedom permanent-magnet spherical motor. The three-degree-of-freedom permanent-magnet spherical motor comprises a base 4, a stator shell 6, universal balls 8, a spherical rotor body 5, an output shaft 2 and stator coils 7, wherein the stator shell 6 is fixed on the base 4, a rotor 5 is of a spherical shape and is fixedly connected with the output shaft 2, a cylindrical groove is formed in an equator position of the rotor and is used for embedding a permanent magnet, threaded holes are formed in the stator shell 6, a part of threaded holes are used for fixing the stator coils 7 by stator coil frames, the other part of threaded holes are used for fixing the stator coils 7 by combined stator coil frames 9, each combined stator coil frame 9 is in threaded connection with the universal ball 8 used for supporting the rotor, each universal ball 8 comprises a support tray 13, the support tray 13 is in threaded connection with the combined stator coil frame 9, a steel ball 14 is arranged in the support tray, and a nylon ball 15 is arranged on the steel ball 14.

The invention discloses a double-redundancy six-phase moment motor for a precision instrument and device, and a control method thereof. The motor is an AC permanent magnetic synchronous servo motor, is formed by assembling stators and a rotor, and is characterized in that the stator and the rotor employ a double-stator and single-rotor structure. A double-stator structure is as follows: double stators employ a splicing type structure and are provided with two independent stator windings; the two independent stator windings share one permanent magnet; the housing of the motor stators is provided with cooling grooves, the two sides of the housing are provided with sealing grooves, through a cooling system, the operation temperature of the stator can be reduced, and the output power of the motor is improved; and the two independent stator windings are controlled by a control system so as to realize individual operation of one of the stator windings and parallel operation of the two stator windings. According to the invention, through double-redundancy control, when a certain control system fails, the other system can still work normally, such that the system reliability is improved. The motor and the method provided by the invention can also be applied to other high-precision instruments and devices.

The invention relates to high-pressure large-current dry compressed air insulated metal closed switch equipment, solving the problems of environment pollution and poor heat dissipation property when SF6 gas is used as an insulation medium. The switch equipment is characterized in that an upper seal plate, a left seal plate, a right seal plate and a back seal plate of a gas tank are provided with radiating fins; a three-station switch is connected with a solid sealed pole post through a copper connecting piece; a copper connecting radiating fin is installed outside the copper connecting piece; a radiating through hole is processed on the outlet end of the moving contact of the solid sealed pole post; the front part of the epoxy resin insulation shell of the solid sealed pole post is provided with a convection notch; an anti-cracking gap is reserved between the epoxy resin shell and the static contact end outlet seat of the solid sealed pole post; and a U-shaped radiating bus is mounted at the tail end of the solid sealed pole post. The equipment disclosed by the invention has the beneficial effects of improving the distribution of electric fields while realizing radiation, meeting the requirement of dry compressed air insulated metal closed equipment which takes clean and dry compressed air as an insulation medium and has the voltage of 40.5kV and current of more than 2000A and realizing energy conservation and environment protection.

The invention provides a diaphragm-free type device for circularly electrolyzing hypochlorous acid and sodium hypochlorite. The device comprises a water softener, a water storage tank, a sodium chloride storage tank, a water supply pump, a saline water conveying pump, a diaphragm-free type electrolytic cell, a hypochlorous acid and sodium hypochlorite storage tank and an electrical control system. The device is characterized in that the diaphragm-free type electrolytic cell is provided with a cooling electrolyte flow-in opening and an electrolyte flow-out opening; an electrolyte output pump, a heat exchanger and an electrolyte input pump are sequentially connected between the electrolyte flow-out opening and the cooling electrolyte flow-in opening; the electrical control system comprises a touch screen, a PLC control module and a rectifier; and control circuits are arranged among the PLC control module, the touch screen, the rectifier, the water softener, the water supply pump, the saline water conveying pump, a conductive electrode of the diaphragm-free type electrolytic cell, the heat exchanger, the electrolyte output pump and the electrolyte input pump. The diaphragm-free type device is high in electrolytic reaction speed, high in hypochlorous acid and sodium hypochlorite yield, high in conversion rate and low in running cost.

The invention relates to a photovoltaic power generation device, in particular to a photovoltaic power generation component junction box. The photovoltaic power generation component junction box adopts the following technical scheme that the photovoltaic power generation component junction box comprises a box body, a diode chip set provided with at least one bypass diode, a packaging body used for packaging the diode chip set, and radiating fins that are used for radiating the bypass diodes, are in electrical insulation with the bypass diodes, and extend out of the box body. According to the photovoltaic power generation component junction box, the heat of the bypass diodes is led out of the junction box, so that the radiating performance of the bypass diodes is improved, and the problem of temperature rise of the bypass diodes in the prior art is solved effectively.

The invention discloses a motor cooling structure of an immersed pump. The motor cooling structure comprises a sealing member, a cooling coil, a circulation impeller, a circulation guide vane and an adjusting device, wherein the adjusting device is communicated with a motor shell; the cooling coil is installed outside the motor shell and immersed inside an sucking channel of the pump body; the upper end of the cooling coil is communicated with the sealing member and the lower end is communicated with the adjusting device; the sealing member is a hollow shell with a reinforced circulation chamber; and a circulation impeller and a circulation guide vane are installed inside the reinforced circulation chamber. The motor cooling structure has the benefits that the motor temperature rising problem is solved; the cooling liquid has a lubrication function to the motor; the motor has strong circulation stability and can work for a long term without changing the cooling liquid; so that the cooling condition of the motor is significantly improved and the period for changing the cooling liquid is prolonged; and the axial load of a main pump bearing is reduced, so that the reliability and the stability of the motor operation are effectively improved. As a result, the operation environment of the motor is improved, the service lives of components and maintenance period of equipment are prolonged; and the expense of a whole project is saved.

The invention relates to a self-pretightening double-row tapered roller bearing which is mainly applied in the steel industry and is used on the roll of a rolling mill. The bearing comprises two single-race outer rings, an inner ring, precompression springs, a retainer and a roller. Eight to sixteen precompression springs are installed in grooves on the two end surfaces of each outer ring. The retainer, the roller and the inner ring form a double-row tapered inner assembly. The double-row tapered inner assembly and the single-race outer rings form a complete bearing. The inner ring is provided with an inclined key groove which is used to position a structure. The invention has the advantages that the axial loading requirement is well satisfied and the problems of uneasy clearance control, bearing inner ring creep, short service life and temperature rise are effectively solved.

A water-cooling pre-heating heating body comprises a heating pipe, a water outlet pipe and electrode clamping hoops. The heating pipe is a quartz pipe, the outer surface of the heating pipe is coated with an electric heating coating, the two ends of the electric heating coating are coated with electrodes, the electrode clamping hoops are arranged on the electrodes, and the heating pipe is connected with the water outlet pipe. The water-cooling pre-heating heating body is characterized in that the heating pipe is installed in a radiating shell, the radiating shell comprises at least one heating cavity and a pre-heating cavity, the two ends of the heating pipe are fixed to the inside of the heating cavity of the radiating shell through sealing rings, a water inlet of the pre-heating cavity is communicated with a water inlet pipe, and a water outlet of the pre-heating cavity is communicated with the heating pipe. The water-cooling pre-heating heating body is compact in structure and convenient to install; by means of a cold water pre-heating mode, heat radiation emitted outside by the heating pipe is collected, water is pre-heated, energy is saved, heat power is improved, the problem of temperature rising of the heating pipe is effectively solved, the power density of an electrothermal film can be increased and the size of the heating pipe is reduced.

The invention relates to medical instruments, in particular to a cooling device of an implantable heart assisting blood pump. The cooling device comprises a pump system and a driving system. The pumpsystem is provided with the blood pump and a pump case, and the driving system is provided with a stator and a rotor. The cooling device is characterized by further comprising heat directional conducting parts and vacuum heat insulating parts; the heat directional conducting parts are located on the periphery of the stator of the blood pump, and the vacuum heat insulating parts are located in thepump case of the blood pump. The heat directional conducting parts directionally conduct heat generated by the stator of the blood pump into blood. Outward radiation of the heat is reduced through thevacuum heat insulating parts, temperature rise of the surface of the blood pump is reduced, and heat damage to tissue is avoided. Meanwhile, as the specific heat capacity of the blood is very large and the heat dissipation function of the surface of the human body is very strong, the heat cannot cause increase the temperature of the blood. Vacuum is formed between the vacuum heat insulating layers, so that outward radiation of the heat is reduced. The problem of temperature rise of an implantable artificial heart-heart ventricle assisting system is effectively solved, and the temperature riseis completely within the human body physiological range after the implantable blood pump is implanted in the body.

The invention discloses a test system and method for influences of harmonic waves on the temperature rise and the loss of parallel capacitors. The method is characterized by including the following steps that first, a harmonic source is adjusted so that the harmonic source can give out a fundamental wave voltage equal to the rated voltage of the capacitors and harmonic voltages different in time number and content, and the temperature and the voltage and current values of the capacitors are observed and recorded; second, it is guaranteed that the total voltage effective value output by the harmonic source is equal to the rated voltage of the capacitors according to the constant-voltage method calculation formula, and the temperature and the voltage and current values of the capacitors are observed and recorded; third, it is guaranteed that the total fundamental wave and harmonic current effective value output by the harmonic source is equal to the rated current of the capacitors according to the constant-current calculation formula, and the temperature and the voltage and current values of the capacitors are observed and recorded. Through the system and method, the influences of harmonic waves on the temperature rise and the loss of the parallel capacitors can be scientifically and effectively tested, the change conditions of the temperature rise and the loss of the parallel capacitors under the condition of different harmonic waves are obtained, and test data are comprehensive and high in accuracy.

The invention relates to a heat conduction insulating adhesive tape and a preparation method thereof. The heat conduction insulating adhesive tape comprises a substrate layer, a heat conduction adhesive layer and a release film layer which are arranged successively from bottom to top, wherein the substrate layer is a non-woven fabric substrate or a composite fiber fabric substrate; and the heat conduction adhesive layer comprises an adhesive, a nanometer heat conduction filler, a heat stabilizer, an antioxidant, a plasticizer, a coupling agent and a solvent. As the non-woven cloth or compositefiber cloth is preferred as the material of the substrate layer, and together with the nanometer heat conduction filler used in the heat conduction adhesive layer, high insulation and high thermal conductivity of the adhesive tape are comprehensively realized; when a conventional insulating adhesive tape is replaced by the heat conduction insulating adhesive tape provided by the invention, both the insulation can be ensured and the problem of temperature rise of a device can be solved, the operation stability of a product can be improved, and the service life of the product can be prolonged;and meanwhile, the adhesive tape is simple in preparation method process, short in process procedure, common in use equipment, low in raw material price and applicable to on-batch production and use.

The invention relates to the improvement of a speed-increasing gearbox of a wind driven generator, which is characterized in that: a gear transmission has 3 to 4 stages, wherein the last stage is a planetary gear transmission; the former stages are all double-circular-arc cylinder herringbone spiral gear transmissions. Compared with the conventional generally-used speed-increasing gearbox which mainly uses the planetary gear transmission, because the low-speed stages (1 to 3 stages) adopt double-circular-arc cylinder herringbone spiral gears with high transmission efficiency and a subsequent stage adopts the planetary gear transmission, the advantages of the double-circular-arc cylinder herringbone spiral gear transmission and the planetary gear transmission are combined together, thus the effective one-off life is long, the transmission efficiency is high and the volume is small; and moreover, the double-circular-arc cylinder herringbone spiral gear is used for the speed-increasing gearbox of the wind driven generator for the first time.

The invention relates to an automatic bearing bush boring mill system, and belongs to the field of boring mills. The automatic bearing bush boring mill system particularly comprises a feeding conveying belt, a cleaning machine, a cleaning manipulator, a machining conveying belt, a feeding manipulator, a mill body, a discharging conveying belt, a discharging manipulator, a storage disk, a sensor, a programmable logic controller (PLC) control module and an alarm module. The feeding conveying belt is used for conveying bearing bushes to the cleaning machine. After the cleaning machine cleans the bearing bushes, the cleaning manipulator places the bearing bushes onto the machining conveying belt. The machining conveying belt conveys the bearing bushes to the feeding device. The feeding manipulator is used for putting the bearing bushes on the machining conveying belt on the mill body. The mill body comprises a pushing air cylinder and a die fixing device. A blank die can be taken out and replaced conveniently and rapidly. After machining, a servo motor controls the blank die to move upwards. A second time of boring of the bearing bushes is not needed. A boring cutter can retreat in any position to prepare for the next cycle.

In the invented power device, the rectifier / filter, the circuit changer and the current converter are combined so as to reduce the size and raise the power supply efficiency. The power device includes rectifier / filter, the DC / DC circuit changer and the DC / AC current converter. The rectifier / filter is connected to the AC input end in order to convert the AC to DC. The DC / DC circuit changer and the DC / AC current converter supply the power concurrently, and their one end is connected to the output end of the rectifier / filter as same time. The DC / DC circuit changer converts the input DC voltage to the fixed lowered DC voltage in order to supply the power to the system. The DC / AC current converter converts the DC voltage to the higher AC voltage to supply the power to luminous tubes.

The invention discloses a nano-fluid based solar electricity and heat combined utilization device. A PV / T heat collecting plate, a heat exchange water tank, a first nano-fluid box, a first peristaltic pump, a first flow-meter and a first thermocouple are connected in sequence through a first pipeline to form a circle; and the PV / T heat collecting plate, the heat exchange water tank, a second nano-fluid box, a second peristaltic pump, a second thermocouple and a second flow-meter are connected in sequence through a second pipeline to form a circle. As the solar photoelectricity utilization and photo-thermal utilization are combined organically, the nano-fluid based solar electricity and heat combined utilization device not only solves the temperature rise problem of a solar cell panel, but also can utilize the afterheat generated by the solar radiation and accordingly increases the comprehensive utilization efficiency of the solar energy. In addition, as the nano-fluid has a selective absorption characteristic for the solar radiation, almost all the near infrared and infrared radiation can be absorbed, and the photoelectric conversion efficiency of a solar cell is further increased.

The invention discloses a uniaxial tension compression system. A hydraulic cylinder (7) is arranged just above a lower pressure head 6; a loading head (8) is arranged at the lower end of a piston of the hydraulic cylinder (7); a probe of a linear variable differential transformer (9) is downwards vertical and is contacted with the upper end of the piston of the hydraulic cylinder (7); the oil inlet of a servo valve (11) is connected with the oil outlet of a variable plunger type hydraulic pump (18); the oil return outlet of the servo valve (11) is connected with the oil return port of the variable plunger type hydraulic pump (18); a branch pipe (26) is connected to a second oil pipe (17'); the branch pipe (26) is connected with an oil nozzle (24) at the bottom of an energy accumulator shell (20); a capsule bag (22) is arranged in the energy accumulator shell (20); and the exterior of the capsule bag (22) is filled with hydraulic oil (25). According to the system disclosed by the invention, a fixture stress concentration effect is avoided, a test piece is completely in a stretched state in the test process, which is consistent with the experimental purpose, and the acquired test data is very intuitive, real and reliable.

The invention discloses a multifunctional safe guillotine which mainly comprises following circuits, opening and closing of the guillotine are identified by an opening and closing instruction and controlled by a control circuit so that opening and closing manners of the guillotine are restriction mode control. A zero-past pulse instruction signal is obtained by a zero-past sampling circuit, thereby an impact phenomenon of voltage and current is not generated on the circuit when the guillotine is opened or closed, and the instruction signal provides a count time for work time sequence of an arc suppression circuit and an operation circuit; an automatic switch between a contactless work mode and a contact work mode is timely done by a count control circuit, the arc suppression, operation circuits and a closing control circuit, so that the guillotine is in the contactless work mode when turning on and turning off power source to avoid generation of an impact phenomenon of electric arc and current; the guillotine is in the contact work mode when being in normal operation, thereby solving a problem of temperature increase during operation process. A safe locking function and a plurality of protection functions further increase safety and reliability for the usage of the guillotine.

The invention provides a motor, belongs to the technical field of motors, and aims to solve the problems of poor heat dissipation and large influence of temperature rise on performance of the motor of the existing motor. The motor comprises a shell, a stator and a rotor component, wherein the stator and the rotor component are arranged in the shell; the rotor component comprises a rotating shaft and a winding arranged on the rotating shaft; the two ends of the rotating shaft protrude out of the shell; one end of the rotating shaft is provided with an outer flan blade; an inner fan blade is also arranged on the rotating shaft in a sleeving manner; the inner fan blade is positioned on one side of the winding and is arranged in the shell. The motor has the advantages of good heat dissipation effect, low motor temperature rise and superior performance.

The invention discloses a method for preparing AgSnO2 contact material by a spray co-deposition reaction, which comprises the following steps: 1, processing of Ag2O powder; 2, preparation of alloy fusant; 3, preparation of composite material by the spray co-deposition reaction; 4, in situ chemical processing of the composite material; and 5, preparation of sliver rear earth oxide contact materialby extrusion, rolling and drawing. The method of the invention has easy control, less pollution, and low production cost and can realize the industrialization production. The prepared AgSnO2 contact material has higher processability compared with the AgSnO contact material prepared by using a powder metallurgy method, an internal oxidation method and chemical precipitation process and the like, has fresh reaction interface of Ag and SnO2, can preferably solve the problem of temperature rising of the contact material and improve the comprehensive property of the material.

An edge-lit backlight device is disclosed in the present disclosure. The edge-lit backlight device comprises a light guide plate, light sources and a backplate. The light guide plate comprises two wedged plate portions and a rectangular plate portion, the two wedged plate portions are disposed at two sides of the rectangular plate portion respectively, and the wedged plate portions and the rectangular plate portion each comprise a light incident surface and a bottom surface. The light sources are disposed adjacent to the light incident surfaces of the wedged plate portions and the rectangular plate portion respectively. A liquid crystal display (LCD) is also disclosed in the present disclosure. The edge-lit backlight device and the LCD of the present disclosure are simple in structure, allow for regional control functions and can dissipate heat generated by the light sources in a timely and efficient way.

The invention discloses a lockable magnetic powder clutch type automatic six-gear gearbox which comprises a lockable magnetic powder clutch and electric stud type joint devices of all gears. The lockable magnetic powder clutch and the electric stud type joint devices of all gears are controlled to be powered on and powered off, and thus gear shift control over all the gears is achieved. The lockable magnetic powder clutch type automatic six-gear gearbox has the beneficial effects of being high in transmission efficiency, compact in structure, capable of achieving dynamic power shift, free of mechanical or hydraulic gear shift components and the like.

The invention relates to a lithium-ion power battery, comprising a laminated battery cell (16). The laminated battery cell (16) comprises negative pole pieces (9), positive pole pieces (10) and insulating diaphragms (7), wherein, the negative pole pieces (9) and the positive pole pieces (10) are sequentially arrayed at intervals and are separated by the insulating diaphragms (7); the negative pole pieces (9) are all connected with negative pole lug connectors (21) by fixing parts (20); the positive pole pieces (10) are all connected with positive pole lug connectors (22) by the fixing parts (20); paper clip films (8) are filled between the positive pole pieces (10) and the insulating diaphragms (7) connected at both sides; the paper clip films (8) are filled between the outermost insulating diaphragm (7) and the outermost negative pole piece (9); a heat conduction film (6) is filled outside the outermost insulating diaphragm (7). The lithium-ion power battery features lower internal resistance, high discharge rate, high charge efficiency, long cycle life and high safety.

The invention discloses a terminating electrode head structure for an assemble cell. The structure is formed by sequentially overlapping a base part, an insulating part and a top part. The structure is easy to assemble and has smooth surface after assembling. The base part and the top part are safely separated. In addition, the insulating part shields the main body of the base part, and only first and second interconnecting pieces are exposed, therefore reducing the short circuit risk of the base part and the top part due to false touch of metal objects. Two sides of the base part and that of the top part are respectively equipped with the first and second interconnecting pieces and connecting sheets. According to the invention, connection points are dispersed by a multipoint design, which is of great importance for the assemble cell with large quantity of electricity. Therefore, the temperature-rise problem caused by heating due to high single point impedance can be solved.

The invention discloses a centrifugal compressor bearing with the center provided with a central hole. At least one row of gas supply holes are peripherally arranged on the bearing and communicated with the central hole, and gas chambers are arranged on the inner wall of the bearing at outlets of the gas supply holes. The centrifugal compressor bearing utilizes high-pressure gaseous refrigerant led out from a condenser to lubricate bearing kinematic pairs at two ends of a motor shaft, so that a compressor can simultaneously adapt to operations at extremely high speed and extremely low speed, operating range is enlarged, the refrigerant is utilized for cooling the bearing kinematic pairs, the problem of temperature rising of the bearing kinematic pairs is solved thoroughly, and operating stability is improved. Besides, the invention further discloses a centrifugal compressor using the bearing and an air conditioning system using the bearing.