Patent application number | Description | Published |
20110094897 | Hydrogen Storage Device - A hydrogen storage device includes a first casing and a second casing. A hydrogen storage material is disposed in a receiving space formed inside the first casing. The second casing encloses the first casing such that the first and second casings jointly form an outer flow channel structure. Furthermore, the first casing has a surface extended inward of the first casing to form a recess. By disposing a baffle inside the recess, a curved inner flow channel structure is formed in the recess of the first casing. With this simple structure, a heat exchange substance can exchange heat with the hydrogen storage material, which is disposed inside the receiving space, via both the outer flow channel structure and the curved inner flow channel structure. Therefore, the heat exchange rate can be increased to accelerate the storage and release of hydrogen. | 04-28-2011 |
20110156665 | LINEAR MODULATION VOLTAGE TRANSFORMER CIRCUITRY - A linear modulation voltage transformer circuitry includes a power stage unit, a voltage division unit, a linear modulation unit, an error amplifier, and a recursive controller. The power stage unit adapts an input voltage and outputs a first voltage to the voltage division unit, which outputs a divided voltage. The linear modulation unit receives the divided voltage, compares it with a control voltage, and outputs an error voltage signal to the error amplifier, which amplifies the error voltage signal as an error gain control signal. The recursive controller receives and modulates the error gain control signal and outputs the modulation error gain control signal to the power stage unit as a reference signal so as for the power stage unit to modulate the first voltage. Thus, the first voltage can be varied in real time via the linear modulation unit to meet load demands. | 06-30-2011 |
20110160928 | RANDOM CONTROLLED FUEL CELL POWER MODULE - The present invention discloses a random controlled fuel cell power module. The random controlled fuel cell power module includes a power module system, a current detection unit, and a random control unit. The power module system is composed of at least two parallel-connected DC/DC converters, for providing the power for a load. The current detection unit detects a load current value of the load. The random control unit reads the load current value and randomly assigns a control mode to activate the DC/DC converters according to the load current value, so that the DC/DC converters can be equally used. Therefore, the failure rate of the DC/DC converters is reduced, the life of the power module system is relatively prolonged, and the stability of the power module system is simultaneously increased. | 06-30-2011 |
20110171552 | AIR-COOLED FUEL CELL STRUCTURE WITH AIR-GUIDING ELEMENT - An air-cooled fuel cell structure with an air-guiding element is provided. The air-cooled fuel cell structure includes a fuel cell module, a fan cover, an electric fan, and the air-guiding element. The fan cover has a first opening and a second opening. The first opening of the fan cover is hermetically coupled to a first end portion of the gas flow channels of the fuel cell module. The electronic fan is disposed above the second opening of the fan cover. The air-guiding element is disposed in the fan cover. The air-guiding element guides gas flow in the fan cover to ensure uniform distribution of the gas flow in the gas flow channels of the fuel cell module. Thus, the temperature difference inside the fuel cell module can be reduced and the efficacy of the fuel cell module can be raised. | 07-14-2011 |
20110192732 | HYDROGEN STORAGE DEVICE - The present invention discloses a hydrogen storage device. The hydrogen storage device includes a first casing, at least one hydrogen container, at least one stress buffering unit, and a second casing. The hydrogen container is set inside the first casing. The stress buffering unit is set between the hydrogen container and the first casing. The second casing surrounds the first casing forming a second space to contain heat transfer media, thereby controlling the temperature of the hydrogen container. While the hydrogen storage materials loaded in the hydrogen container absorb hydrogen gas, the stress buffering unit can eliminate the stress caused by the volume expansion of the hydrogen storage materials so as to prevent the first casing from distortion and deformation. Thus, the hydrogen gas can be stored efficiently and safely. | 08-11-2011 |
20110200906 | PARALLEL FUEL CELL ELECTRICAL POWER SYSTEM - A parallel fuel cell electrical power system is provided. The parallel fuel cell electrical power system includes a plurality of fuel cell electrical power modules and a direct-current bus (DC bus). Each of the fuel cell electrical power modules has a fuel-cell stack, a current switch, and a reverse current protection element. The DC bus electrically connects the output end of the plurality of fuel cell electrical power modules and makes one fuel cell electrical power module electrically connect to another fuel cell electrical power module in parallel, such that the fuel-cell stacks with a fixed power capacity are combined to effectively output a variety of voltages for a load. | 08-18-2011 |
20110223511 | FUEL CELL STACK WITH UNIFORM GAS DISTRIBUTION IN MAIN FLOW CHANNELS THEREOF - A fuel cell stack with uniform gas distribution in main flow channels thereof includes a cell stack and an anti-eddy current unit. The cell stack is composed of a plurality of cell units and has an admission flow channel for importing fuel gas. The anti-eddy current unit is provided in the cell stack and situated at the admission end of the admission flow channel to promote fuel gas distribution uniformly in the cell units, thereby increasing the electric power generation efficiency of the fuel cell stack. | 09-15-2011 |
20110244353 | METHOD OF OBTAINING OPTIMAL DESIGN FOR A HEADER OF FUEL CELL STACK AND FUEL CELL STACK WITH AN OPTIMALLY DESIGNED HEADER - A method of obtaining an optimal design for a header of a fuel cell stack and a fuel cell stack with an optimally designed header are provided. The method includes providing a fuel cell stack and obtaining an optimal design for a header of the fuel cell stack. The fuel cell stack is composed by stacking multiple fuel cell units such that header openings thereof are connected to form a header. A control unit is inserted in one side of each header opening to individually control the widths of the header openings and consequently the flow rate of fuel gas passing therethrough. Thus, fuel gas distribution in the fuel cell stack is rendered uniform, and the efficiency of electric power generation by the fuel cell stack is improved. The header openings with the ideal widths define a curvilinear structure which constitutes the optimal design for the header. | 10-06-2011 |
20110250517 | GASEOUS FUEL SUPPLY SYSTEM FOR A FUEL CELL - The present invention discloses a gaseous fuel supply system for a fuel cell. The gaseous fuel supply system includes a first valve, a filter element, at least one pressure adjusting element, a first pipeline, a second valve, a flow rate detector, and a check valve. The first valve makes connection to a gaseous fuel supply source, and the filter element makes connection to the outlet of the first valve. The pressure adjusting element controls the gas pressure of fuel gas. The first pipeline makes connection between the pressure adjusting element and the second valve. The flow rate detector and the check valve are made connection sequentially after the second valve. In virtue of the plural detectors used in the gaseous fuel supply source, once an abnormal phenomenon is detected, the first valve and the second valve will be turned off by a control unit to enhance the safety of the fuel cell. | 10-13-2011 |
20110265981 | SYSTEM FOR RECYCLING THERMAL ENERGY GENERATED FROM A FUEL CELL MODULE - The present invention discloses a system for recycling thermal energy generated from a fuel cell module. The system includes the fuel cell module, a thermal module, a heat-recycle module, and a control module. The thermal module includes a heat transfer apparatus. In addition, the thermal module connects with the fuel cell module, and the heat-recycle module connects with the heat transfer apparatus. The control module detects a starting signal of the fuel cell module and controls the thermal module and the heat-recycle module. Thereby, the thermal energy generated from the fuel cell module is transferred to the heat-recycle module. | 11-03-2011 |
20120006049 | SPLIT SOLID ADSORPTION COOLING SYSTEM - A split solid adsorption cooling system is disclosed. The split solid adsorption cooling system includes a first adsorption unit, a second adsorption unit, and a shell-and-tube heat exchanger. The first and the second adsorption units are connected to each other via a first pipeline and a second pipeline of the shell-and-tube heat exchanger. While adsorption and desorption take place alternately in the first and the second adsorption units, the temperature of the first and the second pipelines is lowered, thereby decreasing the temperature of water flowing in the shell-and-tube heat exchanger. In addition, the manufacturing costs of the split solid adsorption cooling system can be lowered because the shell-and-tube heat exchanger need not be operated in a vacuum environment. Furthermore, as the shell-and-tube heat exchanger is separate from the first and the second adsorption units, the overall system volume is reduced. | 01-12-2012 |
20120006503 | VENTILATION SYSTEM FOR TUNNEL ENGINEERING - The present invention discloses a ventilation system for tunnel engineering. The ventilation system is for use in a tunnel having at least one first shaft and at least one second shaft. The ventilation system includes a heat collecting device, a cooling device, and at least one piping system. The piping system is connected to the heat collecting device and the cooling device. A portion of the piping system coils inside the first and second shafts. Increasing the temperature in the first shaft and/or decreasing the temperature in the second shaft introduces ambient air into the tunnel via the first and second shafts by natural convection, thereby decreasing and maintaining the temperature in the tunnel and renewing air therein. The ventilation system advantageously features low power consumption and low manufacturing costs and is fit for use in long-distance tunnel engineering that requires multi-point installation of the ventilation system. | 01-12-2012 |
20120007543 | SYSTEM OF A PLURALITY OF PARALLEL-CONNECTED FUEL CELL CONVERTER DEVICES AND METHOD FOR CONTROLLING THE SYSTEM - A system of a plurality of parallel-connected fuel cell converter devices and a method for controlling the system are provided. The system includes a plurality of fuel cell converter devices, a parallel connection unit, a power control unit, a Mux control unit, and a master controller. The output ends of the plurality of fuel cell converter devices are connected in parallel by the parallel connection unit. The master controller reads signals from the power control unit and the Mux control unit and determines accordingly which fuel cell converter devices need to be turned on to meet the requirement of a load. The method includes the steps of estimating a load, determining the number of the fuel cell converter devices to be turned on, calculating an output power, discharging, and charging. Thus, the plurality of fuel cell converter devices is controlled to output the required power of the load. | 01-12-2012 |
20120007544 | SYSTEM OF A PLURALITY OF SERIES-CONNECTED FUEL CELL CONVERTER DEVICES AND METHOD FOR CONTROLLING THE SYSTEM - A system of a plurality of series-connected fuel cell converter devices and a method for controlling the system are provided. The system includes a plurality of fuel cell converter devices, a series connection unit, a power control unit, a Mux control unit, and a master controller. The output ends of a plurality of fuel cell converter devices are connected in series by the series connection unit. The master controller reads signals from the power control unit and the Mux control unit and determines accordingly which fuel cell converter devices need to be turned on to meet the requirement of a load. The method includes the steps of estimating a load, determining the number of the fuel cell converter devices to be turned on, calculating an output power, discharging, and charging. Thus, a plurality of fuel cell converter devices is controlled to output the required power of the load. | 01-12-2012 |
20120013190 | GRID-CONNECTED POWER CONVERSION CIRCUITRY AND POWER CONVERSION METHOD THEREOF - A grid-connected power conversion circuitry and a power conversion method thereof are disclosed. A DC-DC converter converts a renewable energy into a stable and constant DC power. A DC-AC inverter inverts the DC power into an AC power. The duty cycle of the DC-DC converter is adjusted based on a feedback signal related to the DC power, thereby stabilizing the output of the DC-DC converter. The duty cycle of the DC-AC inverter is adjusted based on a feedback signal related to the AC power as well as the phase angle of grid power that is in turn detected by a phase angle processor. Consequently, the AC power can be synchronized with the grid power in frequency. Therefore, the grid system provides auxiliary power when the renewable energy is insufficient, and the AC power output by the DC-AC inverter is synchronized with the grid power in frequency. | 01-19-2012 |
20120019071 | BACKUP POWER SYSTEM WITH FUEL CELL AND CONTROL METHOD THEREOF - A backup power system with a fuel cell and a control method thereof are provided. The control method includes the steps of: setting a default variation value; determining whether power interruption has happened to a grid power module; determining whether a load is functioning; performing a limiting step; and controlling the output of a fuel cell system. With the control method, the fuel cell system functions as a backup power system configured for grid power, and the fuel cell system generates power in response to variation of the load. | 01-26-2012 |
20120085111 | ADSORPTION REFRIGERATOR WITH THERMOSTATIC CONTROL - An adsorption type refrigerator with thermostatic control includes a first vacuum chamber, a second vacuum chamber, a third vacuum chamber, and a passage structure. The first vacuum chamber accommodates a first adsorption bed, a first condenser, and a first evaporator, and the second vacuum chamber accommodates a second adsorption bed, a second condenser, and a second evaporator. The third vacuum chamber contains a third evaporator. The passage structure guides hot water into the first adsorption bed and guides cold water into the second adsorption bed simultaneously, or guides the cold water into the first adsorption bed and guides the hot water into the second adsorption bed simultaneously. According to the ambient temperature or the temperature of ice water produced by the adsorption refrigerator, the cold water is stopped being guided into the first or the second adsorption bed timely, thereby ceasing the refrigeration temporarily and achieving the thermostatic control. | 04-12-2012 |
20120102988 | METHOD FOR CONTROLLING ADSORPTION AIR CONDITIONING EQUIPMENT - The present invention discloses a method for controlling an adsorption air conditioning equipment. To execute consecutive programs, the adsorption air conditioning equipment performs the steps of: selecting one of a plurality of operation programs according to an execution sequence such that the selected operation program acts as an executable operation program; enabling at least two adsorption beds to operate in response to an executed operation program; switching to the next operation program in the execution sequence according to the operation time of the executed operation program such that the next operation program acts as the next executable operation program; controlling the switching of a plurality of valves according to the executed operation program; enabling the adsorption beds to operate in response to the executed operation program; and switching and executing the operation programs repeatedly until all the operation programs in the execution sequence are completely executed. | 05-03-2012 |
20120102990 | ADSORPTION TYPE REFRIGERATOR THAT AUTOMATICALLY DETERMINES SWITCHOVER POINT - The present invention discloses an adsorption type refrigerator that automatically determines the switchover point. The adsorption type refrigerator includes a first vacuum chamber, a second vacuum chamber, a third vacuum chamber and a waterway structure. The waterway structure is connected to a first adsorption bed in the first vacuum chamber and a second adsorption bed in the second vacuum chamber. The waterway structure simultaneously conveys hot water into the first adsorption bed and cold water into the second adsorption bed, or simultaneously conveys cold water into the first adsorption bed and hot water into the second adsorption bed so as to allow the first and the second adsorption beds to conduct adsorption and desorption alternatively. This alternation creates pressure variation in the three vacuum chambers, which is then utilized to automatically determine the switchover point at which the refrigerator can provide and maintain a cold, stable environment. | 05-03-2012 |
20120104989 | CHARGE-CONTROLLING SYSTEM AND METHOD THEREFOR - A charge-controlling system and a method therefor are applicable to a backup power system having a fuel-cell-based power supply and a battery. The charge-controlling system includes a bidirectional converter, a feedback circuit, a voltage controller, a PWM generator, a switch unit and an over-charging protection circuit. The feedback circuit generates a feedback signal corresponding to an output voltage of the bidirectional converter. The voltage controller generates a control voltage according to the feedback signal and a constant voltage, such that the PWM generator generates a PWM signal based on the control voltage. The over-charging protection circuit controls operation of the switch unit according to the feedback signal and a saturation voltage of the battery. When the switch unit electrically connects the bidirectional converter and the PWM generator, the bidirectional converter charges the battery with the power generated by the fuel-cell-based power supply according to the PWM signal. | 05-03-2012 |
20120105206 | FUEL-CELL-BASED COGENERATION SYSTEM WITH RADIO FREQUENCY IDENTIFICATION SENSORS - The present invention discloses a fuel-cell-based cogeneration system with radio frequency identification (RFID) sensors. The fuel-cell-based cogeneration system with RFID sensors includes the fuel-cell-based cogeneration system and an RFID data processing system. The RFID data processing system captures data of the temperature and flow rate from the RFID sensors, while the system data are in turn converted into RFID signals. The RFID data processing system transmits a control signal generated from the RFID signal to control the operation of the fuel-cell-based cogeneration system. Since the RFID transmission technology, the sensor error caused by wires is consequently reduced. Furthermore, overall sensitivity and accuracy of the RFID sensors are increased, which leads to an accompanying increase in the stability of the operating system. | 05-03-2012 |
20120169127 | POWER SUPPLY SYSTEM AND FUEL CELL BACKUP POWER SYSTEM THEREOF - A power supply system and a fuel cell backup power system thereof are provided. The power supply system includes: a mains power supply module for providing mains electricity to a load, and a fuel cell backup power system for providing electricity to the load while the mains electricity provided by the mains power supply module is insufficient. The fuel cell backup power system includes a fuel cell system, a power conditioning module, a battery, and a controller. The fuel cell system and the battery output first and second electrical energy, respectively. The controller defines a plurality of output power requirement levels for the fuel cell system, reads the power required by the load, and adjusts the output ratio between the first and the second electrical energy in a stepwise manner according to the output power requirement levels so as to meet the power required by the load. | 07-05-2012 |
20120170336 | POWER CONVERSION CIRCUIT - The present invention discloses a power conversion circuit. A control module controls a pulse width modulation regulator to regulate a duty cycle of a DC-DC converter according to the direct current link voltage of the DC-DC converter and the output current and voltage of a renewable power supply. The control module also controls the pulse width modulation regulator to regulate a duty cycle of a DC-AC inverter according to the direct current link voltage of the DC-DC converter, output voltage of a utility power supply, and the output current and voltage of the renewable power supply. | 07-05-2012 |