Patent application number | Description | Published |
20110262820 | FUEL CELL SYSTEM HAVING A REFORMER - A fuel cell system includes a fuel cell stack, an oxidizer supply unit, a reformer, a fuel tank, and a water tank. The reformer generates a hydrogen-containing reformed gas reformed from hydrocarbon-based fuel and supplies it to the fuel cell stack. The fuel tank supplies the hydrocarbon-based fuel to the reformer. The water tank supplies water to the reformer. The reformer includes a reforming unit configured to have a reforming reaction generated therein, a combustion unit configured to supply heat energy to the reforming unit, and a carbon monoxide reduction unit configured to reduce the concentration of carbon monoxide in a reformed gas discharged from the reforming unit. A combustion gas pipe is connected to the combustion unit. A reformed gas pipe is disposed between the reforming unit and the carbon monoxide reduction unit. At least one of the combustion gas pipe and the reformed gas pipe is configured to pass through the inside of the water tank or to raise a temperature of the water tank through contact with the water tank, thereby preventing the freezing of the water tank. | 10-27-2011 |
20110318664 | FUEL CELL SYSTEM AND DRIVING METHOD FOR THE SAME - A fuel cell system including a fuel cell stack having a plurality of unit cells is provided. A method of driving the fuel cell stack is also provided. The method may include supplying a fuel to a fuel cell stack, supplying an oxidizer to the fuel cell stack, controlling supply of the fuel and the oxidizer to operate the fuel cell stack, calculating a total operation time of the fuel cell, and/or varying a stack activation period in which the oxidizer is blocked to the fuel cell stack according to the total operation time and a stack activation cycle of which the stack activation period is generated. | 12-29-2011 |
20120003553 | FUEL CELL SYSTEM AND DRIVING METHOD OF THE SAME - A method of driving a fuel cell system is disclosed. The method of driving the fuel cell system may include supplying water to a reformer by pressing a pump pipe to pressing members to move the pressing members in a first direction, stopping power generation including stopping a supply of fuel and oxidant to the reformer, and discharging water in the reformer by moving the pressing members in a second direction opposite to the first direction while pressing the pump pipe with the pressing members. A fuel cell system is also disclosed. The fuel cell system includes a reformer, a fuel cell stack and a water transferring pump. The water transferring pump includes pressing members and a pump pipe. The pump pipe is in fluid communication with a water transferring pipe. | 01-05-2012 |
20130059216 | FUEL CELL SYSTEM - A fuel cell system is disclosed. The fuel cell system may include a fuel cell stack configured for generating electrical energy by a reaction of an oxidant and a fuel, a recovery unit including a first gas liquid separator configured for separating a by-product discharged by the fuel cell stack into a first gas and a first liquid, a first heat exchanger configured for cooling the first gas supplied by the first gas liquid separator, and a second gas liquid separator configured for separating a by-product supplied by the first heat exchanger into a second gas and a second liquid, and a remover unit fluidly connected to the second gas liquid separator and configured for removing the second gas from the recovery unit. | 03-07-2013 |
20130059220 | FUEL CELL SYSTEM AND DRIVING METHOD THEREOF - A fuel cell system for supplying power to a load includes: a plurality of fuel cell stacks; a plurality of DC/DC converters coupled to the plurality of fuel cell stacks; and a stack controller for estimating performance of the respective fuel cell stacks according to current amounts of the plurality of fuel cell stacks, and for controlling power converting efficiency of the respective DC/DC converters according to the performance of the fuel cell stacks to control output power generated by the fuel cell stacks. | 03-07-2013 |
20130241464 | FUEL CELL HYBRID SYSTEM AND METHOD FOR CHARGING RECHARGEABLE BATTERY THEREOF - A fuel cell hybrid system extends a cycle-life of a rechargeable battery by charging the rechargeable battery with voltage lower than the maximum charging voltage of the rechargeable battery by a predetermined level. | 09-19-2013 |
20140308569 | BATTERY PACK - A battery pack includes a plurality of secondary batteries, the plurality of secondary batteries including at least a first secondary battery and a second secondary battery, a first pack case having an accommodating portion on which the plurality of secondary batteries are mounted, and a plurality of bus-bars electrically connecting the plurality of secondary batteries together, the bus-bars having a “⊂” shape, the plurality of bus-bars including at least a first bus-bar and a second bus-bar, the first bus-bar being coupled to an end of the first secondary battery, the second bus-bar being coupled to an end of the second secondary battery and facing the first bus-bar. | 10-16-2014 |
Patent application number | Description | Published |
20080264743 | DAMPER EQUIPPED WITH RELATIVE DISPLACEMENT DETECTING SENSOR - The present invention relates to a cylinder which has hollow portion therein; a piston rod which is inserted through an upper side of the cylinder and has a groove pattern having plurality of convex portions and concave portions which are alternately formed; a piston valve which is connected with a lower end of the piston rod so as to be reciprocated in the cylinder and has a fluid passing hole which is formed in an up and down direction; a rod guide which closes up an upper end of the cylinder tightly and guides an up-down movement of the piston rod and which has a through-hole at a side portion thereof; and a sensor module which is installed to the rod guide so as to detect a movement of the piston rod by using a variation in magnetic field generated when the piston rod is moved. | 10-30-2008 |
20080265876 | SENSOR MODULE FOR DETECTING RELATIVE DISPLACEMENT AND METHOD OF DETECTING MOVING DIRECTION USING THE SAME - The present invention relates to a sensor module for detecting a relative displacement of an object having a groove pattern with alternately formed projection and depression, which comprises a magnet for generating a magnetic field; a giant magneto resistance (GMR) sensor installed between the magnet and the object to detect a variation in the magnetic field and output an electric signal; a signal processing part for processing the output signal from the GMR sensor to output a square wave; and a housing for supporting the magnet the GMR sensor and the signal processing part, and a method of detecting a moving direction using the same. | 10-30-2008 |
20090071772 | SENSOR MODULE COMPRISING ACCELERATION SENSOR AND RELATIVE DISPLACEMENT SENSOR, DAMPER AND ELECTRONICALLY CONTROLLABLE SUSPENSION SYSTEM COMPRISING THE SAME, AND METHOD OF CONTROLLING VEHICLE MOVEMENT USING THE SAME - The present invention relates to a sensor module comprising a relative displacement sensor and an acceleration sensor, and a damper equipped with the same. The damper comprises a cylinder which is formed with a hollow portion therein; a piston rod which is inserted through an upper portion of the cylinder; a piston valve which is connected with an end of the piston rod so as to reciprocate in the cylinder, and which is formed with a fluid passing hole formed to be passed through the piston valve up and down; a rod guide which air-tightly closes an upper end of the cylinder and has a though-hole in which the piston rod is inserted; and a sensor module which is provided with an acceleration sensor for detecting an acceleration at least in a z-axial direction and a displacement sensor for detecting a displacement of the piston rod and which is coupled with the rod guide. | 03-19-2009 |
20100006381 | PISTON VALVE ASSEMBLY AND DAMPER INCLUDING THE SAME - A piston valve assembly for a damper includes: a core assembly including a solenoid coil; an upper plate on the core assembly, the upper plate including a first through; a lower plate under the core assembly, the lower plate including a second through hole; and a flux ring surrounding the core assembly, the upper plate and the lower plate, the flux ring including a plurality of slots on an outer surface thereof. | 01-14-2010 |
20100263971 | DAMPER FOR CONTINUOUSLY VARIABLY ADJUSTING DAMPING FORCE - Disclosed is a damper for continuously variably adjusting a damping force that includes: a cylinder; a piston rod that is inserted into the cylinder and moves back and forth; a piston valve that is coupled to a bottom portion of the piston rod and moves back and forth in the cylinder according to the movement of the piston rod; a MR fluid that fills the cylinder and moves between a tension space over the piston valve and a compression space below the piston valve; and a volume compensation means that is located in the cylinder and compensates for a volume change of an inner space of the cylinder due to the movement of the piston rod, the volume compensation means including: a floating plunger that is configured to be below the piston valve and capable of moving up and down; a coil spring that is coupled to a bottom surface of the floating plunger and supports the floating plunger; and a support cup that is fixed onto the cylinder, coupled to a bottom portion of the coil spring to support the coil spring, and forms a buffer space, along with the floating plunger, between the support cup and the floating plunger. | 10-21-2010 |
20120074625 | AIR SPRING TYPE SUSPENSION - An air spring type suspension includes: a cylinder including an air chamber; an outer tube surrounding the cylinder and constituting a buffer chamber outside the cylinder, the buffer chamber connected to the air chamber; a damper capable of being inputted into and outputted from the air chamber; a piston rod in the air chamber and inserted into the damper; and an accumulator module constituting a control chamber connected to the buffer chamber, wherein a single closed space is constituted by the air chamber, the buffer chamber and the control chamber, and wherein a pressure change of the air chamber is induced by a pressure change of the control chamber. | 03-29-2012 |