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1858 results about "Energy recycling" patented technology

Energy recycling is the energy recovery process of utilizing energy that would normally be wasted, usually by converting it into electricity or thermal energy. Undertaken at manufacturing facilities, power plants, and large institutions such as hospitals and universities, it significantly increases efficiency, thereby reducing energy costs and greenhouse gas pollution simultaneously. The process is noted for its potential to mitigate global warming profitably. This work is usually done in the form of combined heat and power (also called cogeneration) or waste heat recovery.

Energy recovery system

An energy recovery system for a machine is disclosed. The energy recovery system may have a pump configured to provide a flow of pressurized fluid. The energy recovery system may also have a first fluid actuator with a first chamber and a second chamber and being configured to receive the pressurized fluid, a second fluid actuator with a third chamber and a fourth chamber and being configured to receive the pressurized fluid, and a first valve fluidly connected between the pump and the first and second actuators. The energy recovery system may additionally include an isolation unit with a first selectively restrictable passageway fluidly connecting the first chamber, the third chamber, and a first outlet of the first valve, and a second selectively restrictable passageway fluidly connecting the second chamber, the fourth chamber, and a second outlet of the first valve, as well as an energy recovery unit in fluid communication with the isolation unit. The isolation unit may be configured to direct a flow of pressurized fluid from the second actuator to the energy recovery unit. The energy recovery unit may be configured to convert the flow of pressurized fluid to a first mechanical power output.
Owner:CATERPILLAR INC

Load-lifting apparatus and method of storing energy for the same

A load-lifting apparatus has one or more prime power sources, one or more energy storage systems and regenerative braking. Regenerative energy is recovered when the load-lifting apparatus lowers its load. The elements of the prime power sources, energy storage devices and electrical components may be distributed to provide stability for the load-lifting apparatus. The general power architecture and energy recovery method can be applied to cranes, rubber-tired gantry cranes, overhead cranes, mobile cranes, ship-to-shore cranes, container cranes, rail-mounted gantry cranes, straddle carrier cranes and elevators. In such an architecture, the energy storage system helps alleviate the power rating requirement of the prime power source with respect to the peak power requirement for lifting a load.
Owner:MI JACK CANADA

Power output changing-over method and control system for power assembly of mixed powder car

The invention is a power output switching method and control system of power assembly of mixed power saloon car. It can switch the power output and manage system energy, and according to state switching boundary value and result judgment of data collection, makes the power assembly switch to the states such as reclaiming plugging energy; charging accumulator by engine; electric driving; mixed driving; engine driving; etc to make coordination treatment. Its control system includes main chip, as well as switch quantity conditioning circuit, analogue quantity conditioning circuit, pulse signal conditioning circuit, CAN bus interface, D / A converting circuit, drive isolating circuit, etc, where they are all connected with the main chip. It can make the output torque realize fast smooth switch in a large range, and heightens the energy using efficiency.
Owner:TSINGHUA UNIV

Fresh air conditioner

The invention relates to the field of heating ventilation air conditioners, in particular to an improved air treatment method and a fresh air conditioner device. The invention improves the problems of traditional fresh air treatment and air conditioners and particularly emphasizes that a plate-type air-air heat exchanger and indirect water evaporative cooling are used for recycling energy of sensible heat and latent heat in air exhaust in the fresh air treatment process of damp and hot regions in summer and condensed water is directly evaporated on an evaporator to improve the working condition of a compressor. Under the condition of quantificationally supplying outdoor fresh air, the energy efficiency ratio of the fresh air conditioner is increased, the thermal pollution, damp pollution and noise pollution of the fresh air conditioner to environments are reduced, the indoor air quality is improved, and meanwhile, the fresh air conditioner provides the manufacture, installation and using convenience for a local region all-air central air conditioner. The fresh air conditioner provided by the invention and a design and manufacture method of the fresh air conditioner are applicable throughout the year in various regions, particularly in the damp and hot regions; and the fresh air system provides controlled, comfortable and healthy air environments for indoor activity space of people and air conditioner environments for technology for processing, storage and the like.
Owner:张洪

Shock Absorbing System For Energy Recycling

A shock absorber is provided in the present invention. The shock absorber includes a resilient element; a gear set comprising a first non-return gear and a second non-return gear; and an electric generator driven by the first non-return gear to generate a power when the resilient element is compressed and driven by the second non-return gear when the resilient element is loosened.
Owner:NAT TAIWAN UNIV

Energy recovery and reuse methods for a hydraulic system

A method provides several modes for recovering hydraulic energy produced by an overrunning load acting on cylinders connected in parallel to a machine component. In one mode, fluid from first chambers in both cylinders is routed into the accumulator, while other fluid is directed into second chambers of those cylinders. In a different mode, fluid is routed from the first chamber of only one cylinder into the accumulator, and fluid from the first chamber of the other cylinder goes into the second chambers of both cylinders. Yet another mode comprises routing fluid from the first chambers of both cylinders into the second chambers of both cylinders. In still another mode, fluid from the first chambers of both cylinders goes into the return conduit while the second chambers of both cylinders receive fluid from a supply conduit. Several modes of reusing the recovered energy are described.
Owner:HUSCO INT INC

High-efficiency lignite low-temperature dry distillation quality-enhancing process by using dry distillation coal gas as heat-carrying medium

The invention relates to a low-temperature dry distillation process for coal, in particular to a high-efficiency lignite low-temperature dry distillation quality-enhancing process by using dry distillation coal gas as a heat-carrying medium. The process comprises a coal-preparing flow, a drying flow, a dry distillation flow, a heat source flow, a coal gas and tar processing flow and a semicoke cooling transfer flow; in the process, vapor self-generated by a drying tower is used as a drying medium, the coal gas of a generator is taken as a heat source to heat the self-generated dry distillation coal gas, and serves as a dry distillation medium, and the coal gas of the generator is used as fuel of a hot air furnace; the dry distillation semicoke is cooled in a cooling mode of drying fume exhaust plus semi water spraying; and condensation water is used for coke-quenching water, a gasifier of the coal gas of the generator and a tar cooling agent. The process has the advantages of producing high-index dry coal and dry semicoke, high-heating value coal gas and high-quality tar, having a flawless and high-efficiency energy recycling system, not using outside nature water, hardly discharging water to the outside, saving huge cost for sewage treatment, creating the maximum economic benefits for customers and having quite strong competitive power on economy, technology and market.
Owner:NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY

One-piece organic light emitting diode display device with an energy-recycling feature and high contrast

This invention is an electricity generating organic light-emitting display device (OLED) consisting of vertically stacked layers including an organic light emitting device (OLED), an insulation layer, a solar cell and thin film transistors. The device can reduce the reflection of ambient light, improve the contrast of the signal, and enhance sun-light readability by allowing the ambient light to be absorbed by the solar cells. Furthermore, additional power will be generated by the solar cell through absorption of ambient light and backward emission of OLEDs. The device, without using the polarizer, can exhibit low reflectance characteristics over the visible region and high display contrast.
Owner:NAT TAIWAN UNIV

Electrohydraulic-combined brake control method of battery electric vehicle

The invention discloses an electrohydraulic-combined brake control method of a battery electric vehicle and belongs to the technical field of electric vehicle control. During braking of an electric vehicle, stability of a vehicle body is guaranteed, part of braking energy can be recycled during braking by the aid of reversible power characteristics of a wheel hub motor, charging strategy can be optimized according to the size of electric current generated, kinetic energy consumed during braking can be converted into electric energy to be stored, and the purpose of increasing continuous driving range can be achieved. Relevant signals measured by a sensor and about a brake pedal, travel speed, wheel speed, brake cylinder pressure, battery end voltage, battery charging current, torque of a motor and the like are transmitted to a control system, the status of the vehicle body, wheels and a battery are monitored in real time by a controller, different barking requirements, energy recycling process braking security maintenance are realized by adjusting motor electromagnetic braking torque and hydraulic mechanical braking torque through an electrohydraulic-combined system, and higher efficiency can be achieved in utilization of energy of the electric vehicle.
Owner:嘉兴智德睿控新能源有限公司

Hardware-in-loop test bed of hybrid car brake coordination control system

The invention discloses a hardware-in-loop test bed of a hybrid car brake coordination control system, which comprises a driver operation test system (1), a hydraulic brake test system (48), a data processing module (46) a model simulation test system and a motor brake test system (19), wherein, a hydraulic control valve (58) in the hydraulic brake test system (48) is a test object and can be replaced by other hydraulic valves to be tested for testing hydraulic work characteristic. A permanent magnet synchronous motor (34) in the motor brake test system (19) is the test object and can be replaced by other motors to be tested for testing energy recycling characteristic. A brake operation mechanism in the driver operation test system (1) is the test object and can be replaced by other operation mechanisms to be tested for testing the relation of master cylinder pressure, footplate stroke and footplate force. The hardware-in-loop test bed of the hybrid car brake coordination control system can carry out the integral performance test of the hybrid car brake control system which comprises hardware and control strategy.
Owner:JILIN UNIV

Control method for low-voltage power source management system of new-energy vehicle

ActiveCN105730272AImprove braking energy recoveryIncrease workloadCharging stationsElectric powerLower limitNew energy
The invention discloses a control method for a low-voltage power source management system of a new-energy vehicle. Through DC / DC output voltage control, the braking energy recycling rate of the vehicle can be increased, and the driving comfort and safety of the vehicle can be improved; high and low voltage electric energy is reasonably distributed, and the travel mileage of the vehicle is prolonged. The method is mainly characterized in that the power source management system adjusts the DC / DC output voltage according to different work modes and the state of an accumulator SOC of the vehicle, and the purpose of whole vehicle power source management is achieved. The method includes the steps that firstly, an upper limit value SOC_TOP of the low-voltage accumulator SOC is set to be a, a ranges from 85% to 90%, a lower limit value SOC_BOTT of the low-voltage accumulator SOC is 80%, a bottom limit value SOC_DOWN of the low-voltage accumulator SOC is b, b ranges from 60% to 70%, the low-voltage accumulator is charged by increasing the DC / DC output voltage and discharged by decreasing the DC / DC output voltage through a whole vehicle control unit, and the accumulator SOC is controlled between SOC_TOP and SOC_BOTT. The method mainly comprises control methods in a static charging mode, a Key-on mode, a high-voltage electric energy lacking and braking mode and a fault mode.
Owner:CHINA FIRST AUTOMOBILE

A pressure energy-recycling generation device for a natural gas pipe network

The invention provides a pressure energy-recycling generation device for a natural gas pipe network. The device can efficiently transform the pressure energy in the natural gas pipe network into electricity, thereby realizing recycling. The operation state of the generation device can be automatically real-time monitored by combining a PLC and a solenoid valve, a pressure transmitter, a leakage detector and a sealing machine pry. The device can automatically forewarn and interlock to shut off when conditions like excess pressure and gas leakage occur, so the device has superior security and stability. The device can produce outstanding economic benefit, and has important meaning to reducing resource waste and accelerating establishment of resource-saving and environmentally friendly society.
Owner:JIANGSU AEROSPACE HEWLETT ENVIRONMENTAL PROTECTION TECH

Hybrid electric vehicle complete vehicle system as well as multi-energy control system and control method thereof

The invention relates to a full vehicle system of hybrid vehicles, a multi-energy control system of the full vehicle system, and a corresponding multi-energy control method. The full vehicle system of hybrid vehicles comprises a multi-energy controller system, a motor main body system, an energy storage main body and control system, an engine and a full-vehicle electric-mechanical system. Based on the control system, the invention discloses an energy control method including special processing strategy and algorithm for multi-energy information, energy control of full hybrid vehicle under power-assisted torsional moment, energy control of full hybrid vehicle under energy recovery mode, temperature control strategy of an energy storage unit, and automatic start / stop of the engine. A high-voltage battery of the energy storage unit configured in the full hybrid vehicle has higher work efficiency and higher service life when subjected to the control scheme of the invention, and the full vehicle of the invention meets various index such as the design economy, power performance and emission performance.
Owner:CHERY AUTOMOBILE CO LTD

Combined-type diesel engine waste heat energy recycling system

The invention discloses a multi-grade waste heat energy cascade recycling system for a diesel engine, and particularly relates to a combined-type diesel engine waste heat energy recycling system. The waste heat energy recycling system is structurally characterized in that a high-temperature Rankine cycle system is composed of a working medium pump, a thermoelectric generator, an EGR heat exchanger, an exhaust heat exchanger, a steam turbine, a condenser and the like of a high-temperature system; a low-temperature Rankine cycle system is composed of a working medium pump, an EGR heat exchanger, an exhaust heat exchanger, the cylinder body cooling water heat exchanger, the supercharged air heat exchanger, a steam turbine, a condenser and the like of a low-temperature system. A middle electrical machine is arranged between a turbine motor and a supercharger; the waste heat of cooling water, supercharged air, exhausted gas, EGR recirculated waste gas and the like are utilized, and through the high-temperature and low-temperature organic Rankine cycles, thermoelectric power generation, turbine direct power generation and the like, heat exchange can be carried out between various kinds of waste heat generated by the diesel engine and working media sequentially according to the grade. Due to arrangement of the middle electrical machine, the expansion ratio of the exhausted gas can be improved, and excess pressure energy of the exhausted gas can be directly recycled. Full recycling of multi-grade waste heat energy of an internal combustion engine can be achieved, irreversible losses of the system are reduced, the fuel economical efficiency is effectively improved, and therefore the aims of saving energy and reducing emissions are achieved.
Owner:TIANJIN UNIV

Algal fungi synergistic ecological type microbial fuel cell and method for generating electricity by utilizing water purification

The invention discloses an algal fungi synergistic ecological type microbial fuel cell and a method for generating electricity by utilizing water purification. The fuel cell consists of a fuel cell body, a water inlet distribution system, an anaerobic reaction area, a wetland ecological anode area and an algal fungi symbiotic cathode area. A cation exchange resin is added into a matrix, straw biological carbon is adopted in the wetland matrix, the conductivity is improved, and the internal resistance is reduced; an algal ecological cathode is constructed, and energy conservation and low carbon are realized; and moreover, a deep anaerobic zone is increased on the lower layer of the anode area and adapts to sewage feeding of high-concentration COD, the height of the cell body is increased, and the electrical activity of the cell is improved. The ecological wetland and the microbial fuel cell are combined, a wetland ecological anode and an algal fungi symbiotic oxygen-releasing ecological cathode are constructed, the ecological type microbial fuel cell is formed, and sewage treatment and energy recycling are realized.
Owner:HARBIN INST OF TECH

Fault handling system and handling method of lithium ion power battery system

ActiveCN105691226AImprove energy management efficiencyEasy to useElectric devicesVehicular energy storagePower batteryLithium
The invention relates to a fault handling system of a lithium ion power battery system. The fault handling system mainly comprises a power battery, a motor, a charger, a DC / DC assembly, a No.1 fuse, a battery assembly, a No.2 fuse, and a battery management system. The invention further relates to a fault handling method. The method comprises the steps of when the power battery is out of order, dividing power battery faults into 8 grades according to the damage degree of the power battery faults to the power battery and a vehicle; effectively controlling the charge and discharge power of the power battery from the point of power control; and controlling the charge power of the charger to the power battery, the charge power of vehicle energy recycling to the power battery, the discharge power of the power battery to the motor, and the discharge power of the power battery to the DC / DC. The power battery fault handling method is provided from the point of charge and discharge power control which is the most important for new energy vehicles, and good application value for power battery safety and reliability improvement, and popularization of lithium ion power batteries in new energy vehicles is achieved.
Owner:CHINA FIRST AUTOMOBILE

Hydraulic double-motor driving electronic hydraulic braking system

A hydraulic double-motor driving electronic hydraulic braking system comprises a braking pedal, a braking master cylinder, a secondary master cylinder, a liquid storage tank, a pedal displacement sensor, a hydraulic pressure sensor, an electronic control unit ECU, a first electronic control linear moving module and a second electronic control linear moving module for performing active control on hydraulic braking force and pedal force of the system, an electronic stability control module ESC for regulating the hydraulic braking force of each wheel cylinder, a tee joint for connecting hydraulic pipelines between the braking master cylinder and the inlet of the electronic stability control (ESC) module as well as between the secondary master cylinder and the inlet of the ESC module. According to the invention, the pedal force of a driver can be utilized for pressure establishing, the active control on the pedal force is realized while a pedal force simulator with a complex structure is omitted, braking pedal feel is ensured, the braking intention of the driver can be correctly reflected, the active control on hydraulic pressure is realized, the braking requirement of a vehicle is met, maximum braking energy recycling can be realized, the control is precise, and the response speed is high.
Owner:TONGJI UNIV

Tubular pyrohydrolysis treatment method and device for sludge

The invention provides a tubular pyrohydrolysis treatment method and device for sludge. The device consists of five main systems, namely a feeding system, a modification system, a dehydration system, a heat exchange system, and a purification system; and by adopting a catalyst injecting mode, the sludge is directly heated with medium pressure steam and is subjected to pyrohydrolysis at medium temperature, the remaining heat in the hydrolysis process is fully recycled, and a liquid-solid mixture is obtained, so not only supports of controllable components are provided for a compound fertilizer, but also a filter cake which is subjected to liquid-solid separation has an adjustable moisture content, namely the moisture content of the raw sludge can be reduced to 40 to 60 percent from about 80 percent. Compared with the prior art, the device has the advantages that: the structure is simple, the device can be continuously and stably operated, the sludge pyrohydrolysis temperature is 210 to 250 DEG C, the reaction time is 10 to 20 minutes, the reduction and harmless treatment of the sludge can be economically, quickly and effectively achieved, the sludge can be treated on a large scale, and a novel approach is provided for the sludge treatment and the energy recycling of equipment.
Owner:安徽合协生态环境科技有限公司

Energy recoverable wheel motor

ActiveUS7624830B1Energy can transferAuxillary drivesElectric devicesFlywheelStator
A vehicle energy recovery system has an axle, a wheel affixed to the axle so as to rotate with a rotation of the axle, a flywheel assembly mounted in or adjacent to the wheel so as to be rotatable independently of the rotation of the axle, a stator positioned in proximity to the flywheel assembly, a brake disk affixed to the axle and extending radially outwardly therefrom, and an energy transfer system cooperative with the brake disk for transferring energy from the brake disk to the flywheel assembly. A pair of calipers are respectively mounted adjacent opposite sides of the brake disk. The energy transfer system can be an induction stator or rotor positioned adjacent to the brake disk.
Owner:WILLIAMS KEVIN

Energy recovering circuit with boosting voltage-up and energy efficient method using the same

There is disclosed an energy recovering circuit with boosting voltage-up and an energy efficient method using the same that are capable of boosting the voltage factor of an energy recovered from the panel to rapidly re-appl it to the panel, to thereby reduce the charging time of a panel capacitor and improve its energy recovery efficiency. An energy recovering circuit according to the present invention includes a voltage boosting circuit for boosting a voltage factor of an energy recovered from a panel and supplying the boosted energy to the panel. An energy efficient method according to the present invention includes steps of recovering an energy from a panel to a closed loop; and a controlling the closed loop in order to supplying the energy with its voltage factor boosted to the panel.
Owner:LG ELECTRONICS INC

Motor vehicle energy recovery, storage, transfer and consumption system

An energy conversion apparatus and method using recovered energy sources including motor vehicle kinetic energy (deceleration and shock) and wind resistance, supplemented by liquefied air transferred to the vehicle and by solar radiation thereto. The energy sources are combined, as available, to drive a compressor for supplying intake working fluid of a motor vehicle prime mover, wherein liquefied air provides pre-compression cooling of an atmospheric air portion of the working fluid. The liquefied air is made by recovered energy, stored and transferred between vehicles and between vehicles and stationary sites. In a hybrid version of the vehicle, exhaust heat from a combustion engine part of the prime mover increases working fluid temperature in a gas expander part, thereof; the engine and expander operating independently or together for improved vehicle propulsion efficiency.
Owner:KAUFMAN JAY STEPHEN

Electric car and torque analysis method and system thereof

The invention discloses an electric car and a torque analysis system and method thereof. The torque analysis method comprises the following steps that according to the speed of the car, the opening degree of an acceleration pedal and the rotating speed of a driving motor, initial required torque T1 of the driving motor when the acceleration pedal is stamped is obtained; according to the opening degree of the acceleration pedal and the opening degree changing rate of the acceleration pedal, a first required torque compensation coefficient K1 is determined; according to the T1 and the K1, an ideal required torque T3 of the driving motor is obtained; according to the T3, the maximum driving torque of the driving motor and the maximum feedback torque of the driving motor, the final required torque of the driving motor is obtained. According to the torque analysis method of the electric car, it can be ensured that the torque is slowly increased when a user stamps the pedal in the using process and rapidly decreased when the user loosens the acceleration pedal, torque feedback can be performed so as to improve the energy recycling efficiency, and the user experience can be improved.
Owner:BEIJING BORGWARD AUTOMOBILE CO LTD

Projecting device with energy recycling function

A projecting device with energy recycling function comprises a power system, a light source, an optical engine, a lens and an energy recycling module. The light source which receives power from the power system is for generating a beam of light. The optical engine which receives power from the power system is for guiding the light generated by the light source. The lens is for receiving the light guided by the optical engine to generate a projecting image, and the light forms a light path from the light source to the lens via the optical engine. The energy recycling module is for recycling at least one of heat energy and light energy generated by at least one of the light source and the optical. engine.
Owner:BENQ CORP

Double-barrel water cooled wall type radiation waste boiler with adjusting function and industrial application thereof

The invention discloses a recycling technology for sensible heat of high-temperature and high-pressure gasified products which are coal-gasified by an entrained flow bed, is particularly applicable for a waste boiler flow gasification furnace or a half waste boiler flower gasification furnace of a gasification island of an integrated gasification combined cycle (IGCC) power generation system, and provides a double-barrel water cooled wall type radiation waste boiler with an adjusting function. The double-barrel water cooled wall type radiation waste boiler consists of a flange connected with the gasification furnace, a shell for bearing high temperature and high pressure, an inner-layer water cooled wall, an outer-layer water cooled wall, a screen type water cooled wall, a soot blower and a slag pool positioned at the bottom, and comprises a water-spraying temperature reduction device with the adjusting function. Dust and slag which are carried by most air flows are caught and collected by the slag pool, and synthesized gas flows out from the single side of the radiation waste boiler. High-pressure water entering the radiation waste boiler recycles the sensible heat of the high-temperature and high-pressure gasified products and is converted into saturated high-pressure steam discharged from the outlet of the water cooled wall. By the double-barrel water cooled wall type radiation waste boiler, the high-position sensible heat of the gasified products can be recycled effectively, so the whole energy utilization efficiency can be improved; the double-barrel water cooled wall type radiation waste boiler has the characteristics of safe running, reliability and controllability, and is a clean and efficient energy recycling technology.
Owner:EAST CHINA UNIV OF SCI & TECH

Dual-damping and dual-power-generating combined damping device

The invention relates to a dual-damping and dual-power-generating combined damping device comprising a magnetorheological damping temperature difference power generating type damper and an electromagnetic damping temperature difference power generating type damper which are spaced by a magnetic isolating material and a sealing material to form working spaces independent from each other. The magnetorheological damping temperature difference power generating type damper and an electromagnetic damping temperature difference power generating type damper form a synergistic dual-damping damping and synergistic dual-power-generating working mode. The device is of a novel device structure formed by integration, the objective of optimizing and improving comprehensive performance of the device is achieved, and the device is applicable to damping of automobiles, trains, ships, tanks, airplanes, machinery, projects and bridges and vibrating energy recycling for power generation.
Owner:CHINA UNIV OF GEOSCIENCES (WUHAN)

Energy Recovering Method and System in Hydraulic Lift Device of Battery Operated Industrial Trucks

An energy recovering system in a hydraulic lift device of a battery operated industrial truck. With the system, working oil can be supplied to other hydraulic actuators while energy recovering operation is performed by the hydraulic lift device, occurrence of pressure pulsation in the working oil can be prevented, and energy recovering efficiency is increased. The hydraulic lift device comprises a lift cylinder (1) for lifting a fork F, an electric motor (4) rotated by power supply from a battery (5), a hydraulic pump (3) for supplying pressurized oil to the lift cylinder (1), a control valve (14) disposed in a pressurized oil supply path (23), and a controller (17). The controller (17) controls the opening of the control valve (14) and rotation speed of the electric motor (4) which functions as an electric generator driven by the hydraulic pump (3) rotated by the action of the pressurized oil returning from the lift cylinder (1) when a load is lowered so that the generated electricity charges the battery (5) to recover the potential energy of the load.
Owner:NIPPON YUSOKI

Energy recycling in clock distribution networks using on-chip inductors

A clock distribution network for an integrated circuit includes a clock driver for generating a clock signal having a selected clock frequency, a clock net coupled to the clock driver wherein the clock net has a capacitive reactance, and an inductor coupled to the clock net wherein the inductor has an inductive reactance that is substantially equal to the capacitive reactance of the clock net at the selected clock frequency to minimize clock driver output current.
Owner:AVAGO TECH WIRELESS IP SINGAPORE PTE

Determining method of high pressure of refrigeration cycle apparatus

It is an object of the present invention to reduce the constraint that the density ratio is constant as small as possible, and to obtain high power recovering effect in a wide operation range by using an expander which is operated in accordance with a flowing direction of refrigerant. A determining method of a high pressure of a refrigeration cycle apparatus in which a refrigeration cycle uses carbon dioxide as refrigerant and has a compressor, an outdoor heat exchanger, an expander and an indoor heat exchanger, and the refrigeration cycle including a bypass circuit provided in parallel to said expander, and a control valve which adjusts a flow rate of refrigerant flowing through said bypass circuit, said compressor being driven by power recover by said expander, wherein if an optimal high pressure of a first refrigeration cycle flowing through said expander and a second refrigeration cycle flowing through said bypass circuit is defined as Ph, and a bypass amount ratio flowing through said bypass circuit in said Ph is defined as Rb0, and a maximum refrigeration cycle efficiency of said first refrigeration cycle in said Ph is defined as COPe, and a maximum refrigeration cycle efficiency of said second refrigeration cycle in said Ph is defined as COPb, the optimal high pressure Ph which maximizes (1-Rb0)xCOPe+Rb0xCOPb is determined.
Owner:PANASONIC CORP

Independent pressure regulating device and method of natural gas expander

The invention relates to the field of natural gas pressure regulation and pressure energy recycling, and particularly provides an independent pressure regulating device and an independent pressure regulating method of a high-precision natural gas expander. The device comprises a natural gas system, a control system and a monitoring terminal, wherein the natural gas system is used for reducing pressure of natural gas in an upstream high-pressure pipe network and recycling pressure energy and is used for introducing the natural gas of which the pressure is reduced and the pressure energy is recycled to a downstream lower-pressure pipe network, the control system comprises a center controller which is used for regulating corresponding parameters when the pressure is reduced and the pressure energy is recycled, and the monitoring terminal is used for receiving data transmitted by the center controller and sending a data read request to the center controller. According to the pressure regulating device and the pressure regulating method, the pressure energy of the natural gas is recycled, and additionally, high-precision pressure regulation of the natural gas is realized only by utilizing the independent expander without a pressure regulating valve.
Owner:BEIJING UNIV OF CIVIL ENG & ARCHITECTURE

Electric variable speed drive apparatus with brake energy recovery function for vehicles

This invention relates to electrical gear drive device with braking and recycling function and relates to one electrical adjusting stepless gear, wherein, The device comprises clutch, motor fly wheel, double rotor gear and electrical liquid braking; the double electrical gear inner rotor end is connected to eh motor fly wheel; the one end of the middle rooter is connected to the clutch passive disc bus; the electrical liquid braking device is connected to motor fly wheel through gear or to the motor curved axis; the said middle rotor is connected to the gear output axis through gear.
Owner:BEIJING AUTOMOBILE RES GENERAL INST
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