89results about How to "Small capacity" patented technology

A support shaft provides lubrication to a journal bearing during windmilling operation of a gear set. A primary oil pump provides oil from an oil supply during driven operation of the fan, and a secondary oil pump provides oil from an internal sump during windmilling operation of the fan. During driven operation of the fan, oil is pumped with the primary oil pump through a primary oil flow path to an outer surface of the support shaft. During windmilling fan operation, oil is pumped from an internal sump with a secondary oil pump through the secondary oil flow path. The secondary oil flow path has a smaller flow capacity, and the secondary oil pump is a smaller capacity pump.

The invention discloses a large-capacity battery converter and control method thereof. The converter of the invention comprises several branch single stage type DC/AC converter modules parallel to one another. Each battery cluster (Battery Cluster BC) converges energy to an AC bus via each branch single stage type DC/AC converter module to be transformed in voltage in order to connect to an AC grid or to operate independently with load. The invention solves the circular current and uniform current problems brought by serial and parallel connection of the battery cluster, and adopts the technology of module combination and alternate balance to effectively improve the system efficiency under low power and power quality at the AC and DC sides and to realize balanced use of the battery cluster. Each battery branch can conduct intelligent charge and discharge management and the control function and the protection function are configured independently to ensure the largest availability of the system. The invention has simple structure, small volume, small energy loss, easy modularization, high reliability, small output harmonic wave, good system expansibility and low requirement to insulating ability of the converter and can operate with reduced capacity when the unit is in failure. The control method of the large-capacity battery converter of the invention is convenient and simple in operation and easy in realization.

A small-sized ink jet printer capable of printing on various types of recording mediums at a lower cost, is provided. This is an ink jet printer that carries out printing by depositing UV ink which is curable by irradiation of an ultraviolet ray, on a recording medium, and irradiating ultraviolet rays on the recording medium. The printer has an UV irradiating unit to enable irradiation of an ultraviolet ray on the UV ink deposited on the recording medium. The UV irradiating unit has either a semiconductor laser or an LED, which enables emitting light the peak wavelength of which includes any one of wavelengths in an ultraviolet range which allow to cure the UV ink.

he invention relates to a foam cement insulation board and a preparation method thereof, and provides a foam cement insulation board containing industrial solid wastes and a preparation method thereof. The foam cement insulation board is composed of a mixture A and a mixture B. The mixture A comprises 55-65% of cement, 10-20% of gypsum powder, 8 -15% of hydrogen peroxide,3-4% of a flocculant, 1-2% of a water reducing agent, 1-2% of a coagulant, 2-3% of a cement waterproof agent, 1-2% of lithium carbonate, 1-2% of fiber, and 1-2% of solid master batch. The mixture B comprises 35-47% of a base material, 35-39% of a magnesium chloride solution, 10-15% of magnesium oxide, 2-5% of a binding agent, 2-3% of industrial hydrogen peroxide, 1-2% of lanthanide rare earth and 5-7% of an additive. The Foam cement insulation board provided by the invention has advantages of fireproof, waterproof, light weight, compressive and flexural resistance and high strength, and effectively utilizes industrial solid waste, facilitates environmental protection, and truly realizes turning wastes into treasures.

This invention disclosed is a comprehensive power quality controller for substation in the electric power system and includes a Thyristor Controlled Reactor (TCR), pure tuned passive filter Z_f, additional inductor L active power filter (APF), and a coupling transformer. The Thyristor Controlled Reactor (TCR) provides inductive reactive power and controls the active power filter (APF) as the current source, it is connected with the additional inductor L_a in parallel via the coupling transformer, then connected to the passive filter Z_f in serial to consist a hybrid power filter system, which is connected to the power grid via the circuit breaker or thyristor. The comprehensive filter system provides required capacitive reactive power and filters the harmonic produced by the load and TCR system itself. Because the capacity of the active power filter (APF) is very small which is less than 1% of the harmonic source capacity, so it is a solution with low cost but simple and reliable control mode. It can suppress influence on the passive filter by the “background harmonic” of the substation and prevent the resonance occurred between the passive filter and power grid impedance.

The invention discloses high-strength PVC (Polyvinyl Chloride) awning cloth which is formed by coating both sides of gridding cloth with PVC coatings. According to a raw material formula, each PVC coating comprises the following components in parts by weight: 80 parts of PVC paste resin, 70-90 parts of dioctyl phthalate, 55-65 parts of calcium carbonate, 3-6 parts of chlorinated paraffin, 3-6 parts of a stabilizer, 3-10 parts of de-aromatic solvent oil, 1-8 parts of a vinylpyridine bonding agent, 7-20 parts of flame retardant mortar, 3-8 parts of titanium dioxide, 0.1-0.8 part of an anti-UV (Ultraviolet) agent and 2-30 parts of heat insulation powder. The heat insulation powder is a mixture prepared from hollow glass beads and polyvinyl acetate according to the weight part ratio of 100: (1-5). Compared with the prior art, the awning cloth has the advantages that the tensile strength is up to 3,300N/30mm, the ultraviolet reflectivity and infrared ray blocking rate are up to 95%, and the favorable mechanical property stability is kept after an ageing test is ended.

This invention relates to a portable tea set with observation window, which is comprised by upper cap, tealeaves vessel, teacup and lower cap, featuring in: said tealeaves vessel is equipped with a one-body molded U-shaped filter sieve and an observation window outside, so that you can observe how tea is prepared and U-shaped filter sieve can filter tealeaves and tea water automatically, besides, bottom of tealeaves vessel and internal screw thread of lower cap can interact with top of teacup and bottom of external screw thread, thus, whole tea set can be assembled as required, in addition, owing to its small capacity and combination of whole structure, such tea set is portable and convenient to prepare tea water; meanwhile, it can separate tealeaves from tea water, so that tealeaves shall not be soaked in high temperature water for long time, quality of tealeaves can be preserved accordingly.

An automatic transmission for a hybrid vehicle includes a hydraulic circuit (110) having a source of pressurized fluid (112), an actuation circuit (114) that delivers pressurized fluid to actuate components of the transmission, and a cooling circuit (116) used to cool components of the transmission. The source of pressurized fluid includes a first pump (134) that is operatively driven by the internal combustion engine of the hybrid vehicle and a second pump (136) that is operatively driven by the electric motor (138). The second pump (136) acts to supply pressurized fluid to the cooling circuit (116) when the first pump (134) is operatively driven by the internal combustion engine under certain predetermined conditions.

The invention relates to an autoclaved aerated concrete building block and a preparation method thereof, in particular to an autoclaved aerated concrete building block containing industrial solid waste and a preparation method thereof. The autoclaved aerated concrete building block containing industrial solid waste comprises, by weight percent, 35%-47% of base material, 35%-39% of magnesium chloride solution, 10%-15% of magnesium oxide, 2%-5% of binder, 2%-3% of industrial hydrogen peroxide, 1%-2% of lanthanide rare earth, and 5%-7% of additive. The autoclaved aerated concrete building block has the advantages of fire prevention, water proofing, moth prevention, lightness, crush resistance, bending resistance, high strength, moss avoidance and the like. The proportion of the materials determines the water proofing and moth prevention. The fire prevention meets the standard (class A) of nonflammable materials. The crush resistance is larger than 53Mpa. The bending resistance is larger than 80Mpa. In addition, the industrial solid waste is effectively utilized, wastes are utilized, environment is protected, and the wastes are turned into wealth.

The invention provides an electric promoting eluting and removing device and an electric promoting eluting and removing method for soil heavy metal based on an electric geotextile. An eluting agent is applied to heavy metal polluted soil and the eluting agent and soil are uniformly mixed through a plowing machine, so that the heavy metal in the soil is desorbed into a soil solution through eluting; EKG electrodes are buried into the soil at intervals in parallel and are used as anode and cathode materials of electrodynamics; an interval electrifying manner is adopted under the potential gradient of 0.2V/cm-4V/cm, so that the heavy metal with positive charges in the farmland soil is desorbed into the soil solution through eluting, and is enriched to a cathode under the action of an electric field; then the heavy metal is transferred out of the soil under the action of circulating washing of electrode liquid; and the washed electrode liquid is treated and then is circularly used for washing an electrode. By adopting the electric promoting eluting and removing device and method, the effect of chemical eluting can be improved and the discharging of an eluent is promoted; and meanwhile, the problem of soil acidification and alkalization in an electric remediation process is effectively avoided, and the electrode can be conveniently and rapidly mounted and used in field.

An exemplary switching power supply circuit includes at least a power input terminal, a power control chip, and a soft start circuit. The power input terminal is configured for receiving an operating voltage applied to the switching power supply circuit, and the power control chip is configured for modulating a pulse width of an output current of an optical coupler in the soft start circuit to gain a pulse width voltage of the switching power supply circuit. The soft start circuit includes a first resistor, a second resistor, a capacitor, and a transistor performing an amplifying function.

The invention provides an array pulse load power supply circuit and a control method thereof. The power supply circuit comprises an input offset module, a storage battery, n isolated DC-DC modules, noutput offset modules and n pulse loads; positive poles and negative poles of all the output offset modules are respectively connected with the positive pole and the negative pole of the storage battery, positive poles and negative poles of input ends of all the isolated DC-DC modules are respectively connected with the positive pole and the negative pole of the storage battery, positive poles andnegative poles of output ends of all the isolated DC-DC modules are respectively connected with positive poles and negative poles of the corresponding pulse loads, and positive poles and negative poles of all the output offset modules are respectively connected with positive poles and negative poles which are output by the corresponding isolated DC-DC modules. The circuit can improve the power supply quality of pulse load equipment and reliability of the power supply storage battery and prolongs the service life of the storage battery, the response speed is superior to that of a device whichadopts the same device to achieve charge-discharge control, the response speed is superior to that of simple linear control, and the circuit can completely compensate for the input current impact on the power supply storage battery.

A transfer feeder 41 for a transfer press 1 comprises a pair of bars 14 provided on a moving bolster 30 in parallel with a work transfer direction, a feed carrier 52 held by the bars 14 and movable in the work transfer direction, a clamp carrier 62 held by the feed carrier 52 and movable in the direction of clamp, and a lift carrier 72 supported by the clamp carrier 62 and movable in the direction of lift. Since a large drive mechanism is unnecessary, simplification of the construction can be enhanced. Further, since the whole of a transfer feeder 41 is provided on a moving bolster 30, the moving bolster 30 in its entirety can be carried out of the transfer press 1, thus facilitating die exchanging operation.

A web drive system that integrates storage spaces provided by multiple Internet sites into a single imaginary drive usable as a storage of a mobile terminal. The web drive system includes: a web drive interface for connecting a mobile terminal controller to an imaginary drive to form a web drive; a user information manager for managing user information necessary to have access to the individual Internet sites; a user information storage for storing the user information; an Internet site interface for automatically logging onto the individual Internet sites; a storage space integration manager for managing the information data to be stored/restored; a space allocation information storage for storing space allocation information indicating the capacity of the storage space of the web drive and the location of the Internet site that stores the information data; and a storage mode selector for selecting the mode of storing the information data.

The invention provides a portable large capacity power source unit, which comprises a battery; a multi-joint compatible power supply interface port used to supply power to the battery; a multi-joint compatible power discharging interface port used to make the battery discharge electricity; a circuit board controlling the charge and discharge of the battery and a shell capable of holding the battery, the multi-joint compatible power supply interface port, the multi-joint compatible power discharging interface port and the circuit board. The portable large capacity power source unit is able to adopts a polymer lithium battery, thus the invention has the advantages of the small volume, light weight, convenient carry and able to be placed in the pocket to supply power for the portable electronic equipment at any time as well as any place. The battery is provided with a temperature-rise protection inductive control system of overcharge, overdischarge and overcurrent inside, thus prolonging the service life and improving the application safety.

The invention discloses a variable frequency air conditioner compressor counter electromotive force protection circuit. According to the variable frequency air conditioner compressor counter electromotive force protection circuit, an IPM module is connected in parallel with a protection circuit; when a compressor stops or is powered off instantly, the real-time power supply voltage of the IPM module is the sum of power supply voltage in a normal state and a counter electromotive force; when the real-time power supply voltage is larger than the value of voltage at two ends of an electrolytic capacitor, a diode on the protection circuit is turned on, so that the electrolytic capacitor is charged; and when the real-time power supply voltage is smaller than the value of the voltage at the two ends of the electrolytic capacitor, the diode on the protection circuit is not turned on, and the electrolytic capacitor performs discharging on a power consumption element on the protection circuit. The electrolytic capacitor can be charged, so that the counter electromotive force of the compressor can be absorbed, and therefore, the value of voltage at two ends of the IPM module can be limited to a low-voltage-value range; overvoltage protection is realized based on the cooperation of the small-sized electrolytic capacitor and the diode, and the size and capacitance value of the electrolytic capacitor are both small, and therefore, the structure of the protection circuit can be simplified, and production cost and use cost can be decreased.

A variable transfer rate control coding apparatus which can distribute codes of an amount most suitable to the contents of a moving picture to be recorded and to a recording medium, on which information is recorded by this transfer rate coding apparatus, by obtaining an amount of codes to be temporarily generated in each unit period of time by a temporary or tentative coding, and then storing a temporary transfer rate (namely, a value of the temporary amount of codes to be generated in each unit period of time), and setting a target transfer rate (namely, a target value of an amount) of codes to be sent in each unit period of time from a total of the temporary transfer rates and the recordable capacity of the recording medium and next performing an actual or real coding according to the target transfer rates.

A device for printing a document, such as an HTML document, in which data to be incorporated into an output image can be described in the form of reference to an outside source, the device being capable of smooth printing a large document using a small memory. A document structural information manager creates document structural information which describes a structure of document elements, based on a result of analysis on an HTML document carried out by a document analyzer. During asynchronous downloading of substantial data of each document element, should work memory shortage occur, a memory manager unloads substantial data of a document element with a latter order at which to be incorporated into an output among those in the work memory, and saves the unloaded substantial data in an HDD. Thereafter, when data becomes no longer necessary as a result of being printed, the memory manager deletes the data from the work memory and reloads data saved in the HDD back to the work memory.

Disclosed is an ultra thin optical scanning device for a portable information device, which includes an LED as a light source and totally reflects light from an object-side surface to form an image, thereby increasing a contrast ratio of the image and improving the resolution thereof. The ultra thin optical scanning device includes a light emitting device that emits light for sensing an object, an object-side surface contacting the object and totally reflecting the light emitted from the light emitting device, an image formation part collecting the light totally reflected by the object-side surface, and transmitting the light, and a light receiver part forming an image by using the light transmitted by the image formation part.

A modularized card reader is disclosed. The modularized card reader comprises a base and several card-reading units, wherein a memory card receiving opening and a transmission interface are disposed respectively on the base and the card-reading units for assembling and stacking thereof by using an assembly device on the transmission interface so as to form a selective type all-in-one card reader. Therefore, the users can gather up the same type or the different types of small capacity memory cards to form a lager capacity memory card according to the desired amount or type of their practical requirement. Thus, the older memory card will not be discarded any more and can be used persistently. It complies with economic benefits and environmental protection. Moreover, the modularized card reader complied with the future development can be used persistently, and therefore provided with superior utilization.

The invention discloses flame-retardant lithium ion battery electrolyte with functions of flame retardance and even incombustibly. The electrolyte contains ethylene diphthalimide derivative used as additive, the structural formula of the ethylene diphthalimide derivative is as follows: in the structural formula, R is halogen, alkyl, a phenyl group, a biphenylyl group, a phenylate group, a haloalkane group, a halogeno benzene group and a halogenated biphenyl group, wherein the halogen is F, C1 or Br, and halogenating is primary, disubstituted or trisubstituted. Through adding the flame-retardant additive in the lithium ion battery electrolyte, flame-retardant property of the electrolyte can be increased greatly, and further the flame-retardant additive seldom affects other properties of lithium ion batteries such as capacity, circulation properties and the like.

The invention discloses a sintered porous brick and a preparation method thereof. The sintered porous brick comprises the following components in percentage by weight: 68-70 percent of shale and 32-30percent of tailing powder (sewage and sludge). The preparation method comprises the following steps: (1) mining and transporting; (2) processing raw materials; (3) forming; and (4) drying and roasting. The product eliminates the lag production process of the traditional clay sintered brick so as to greatly improve the product quality. A great quantity of cultivated land is saved and the land resources are effectively protected due to the change of the raw materials. Meanwhile, a great quantity of bits of wood (bits of bamboo) greatly improves the environment definitely.

The invention discloses a sintered porous brick and a preparation method thereof. The sintered porous brick comprises the following components in percentage by weight: 91-93 percent of shale and 9-7 percent of bits of wood (bits of bamboo). The preparation method of the sintered porous brick (shale) comprises the following steps: (1) mining and transporting; (2) processing raw materials; (3) forming; and (4) drying and roasting. The product eliminates the lag production process of the traditional clay sintered brick so as to greatly improve the product quality. The change of the raw materialssaves a great quantity of cultivated land and effectively protects the land resources. Meanwhile, using a great quantity of bits of wood (bits of bamboo) greatly improves the environment definitely.

The invention discloses an active harmonic management device. The device comprises an instruction current operational circuit and a compensating current generation circuit. The instruction current operational circuit is used for detecting harmonic wave and reactive power current components in compensating load currents, and the compensating current generation circuit is used for generating actual compensating currents according to an instruction signal of the compensating currents, wherein the instruction signal is obtained according to the instruction current operational circuit. The compensating current generation circuit comprises a main circuit, a driving circuit and a current tracking and controlling circuit. The active harmonic management device has the advantages that dynamic compensation is achieved, harmonic waves changeable in frequency and size and changeable reactive power can be compensated, and response to changes of a compensated object is rapid; the harmonic waves and the reactive power can be compensated at the same time, and the intensity of the compensated reactive power can be continuously adjusted; influences caused by power grid impedance are small, and harmonic vibration between the active harmonic management device and the power grid impedance is not prone to occurring; changes of power grid frequencies can be tracked, so that the compensating performance is not affected by the changes of the power grid frequencies.