摘要:
A stack for a fuel cell includes a first collecting plate having a first electric polarity, a second collecting plate having a second electric polarity different from the first electric polarity, and at least one electricity generator located between the collecting plates. The at least one electricity generator is for generating electric energy due to electrochemical reaction between hydrogen and oxygen to be collected by the collecting plates. Coupling members press the at least one electricity generator in an airtight connection between the collecting plates. A terminal member protrudes from the second collecting plate and is electrically connected to the first collecting plate and insulated from the second collecting plate, such that the terminal member is used as a first terminal having the first polarity. The second collecting plate or a second terminal member may also be used as a second terminal having the second polarity.
摘要:
A pump for a fuel cell of a noise suppression and vibration proof structure and a fuel cell system using the same. The pump includes a housing including a metal housing main body and an inlet hole and an outlet hole for receiving and discharging a fluid and a pump inserted into the housing and including an inlet pipe through which the fluid is received and an outlet pipe that passes through the outlet hole and through which the received fluid is discharged with predetermined pressure. Therefore, the noise and vibration of the pump are reduced.
摘要:
A method and an apparatus for water management in a direct methanol fuel cell system using a heat exchanger and including a pipe for connecting a cathode outlet of a fuel cell stack with a mixer. The method includes: measuring an output voltage and/or an output current of the fuel cell stack; extracting a concentration value of the mixed fuel corresponding to the measured output voltage and/or current from a look-up table; comparing the extracted concentration value of the mixed fuel with a reference concentration value; and forcibly cooling a fluid flowing in a pipe for a time period by a heat exchanger coupled to the pipe when the extracted concentration value of the mixed fuel is higher than the reference concentration value.
摘要:
There are provided a pump of a noise suppression and vibration proof structure and a fuel cell system using the same. The fuel cell system includes at least one electricity generator including an electrolyte membrane and an anode and a cathode attached to the both surfaces of the electrolyte membrane to generate electricity energy by the electrochemical reaction between fuel containing hydrogen and oxidant supplied to the anode and the cathode, a fuel supplying unit including a pump for supplying the oxidant to the electricity generator, and a fixed frame that is provided on a lower frame and to which the pump is fixed. The pump is separated from the lower frame and is fixed to and combined with the fixed frame by the belt-shaped fixing member on the side surface of the fixing frame with a buffering member interposed. Therefore, it is possible to reduce the noise and vibration of the pump.
摘要:
A fuel tank and a cap device for the fuel tank. The fuel tank is connected to a fuel cell and includes a tank body having a fuel opening and a pin hole for maintaining an inside pressure, a floater positioned on a surface of the fuel stored in the tank body, and an air pipe connected to the pin hole and an upper part of the floater. The cap device includes a cap body having an inside transfer path for connecting an inlet opening for introducing the fuel and an outside transfer pipe, a fixed outer cap including a connector for fixing a discharge opening into which the transfer pipe is inserted, and an elastic opening/closing section in which the cap body is elastically compressible by the connector, and wherein the inside transfer path opens during the compression.
摘要:
A fuel cell system comprises an electricity generation section for generating electrical energy through electrochemical reaction of hydrogen and oxygen, a fuel supply section including a fuel pump arranged in a fuel tank for providing fuel, an oxidizer supply section including an oxidizer supply pump for providing an oxidizer to the electricity generation section, and a pump fixing accessory for connecting the fuel pump and the oxidizer supply pump to the body plate of a fuel cell, and for absorbing vibration generated by driving of one of both pumps. The pump fixing accessory comprises a vibration absorbing section for absorbing the vibration generated by the driving of the pump(s), a first connection section having one end connected to the vibration absorbing section and another end connected to the pump(s), and a second connection section having one end connected to the vibration absorbing section and another end connected to the body plate of the fuel cell.
摘要:
A simulator for developing an acoustic detector of underwater vehicle precisely verifies performance of an acoustic detector by simulating an actual underwater environment, including target signal, applied to an underwater vehicle. The simulator an I/O communication unit for receiving information required for simulating an underwater environment from an acoustic detector and an motion simulator; a signal generator for receiving the information from the I/O communication unit to calculate a digital signal model; a D/A converter for converting the digital signal model into an analog signal; a signal conditioner for generating a signal similar to the signal of an actual underwater environment by controlling frequency and gain of the analog signal; and a remotely controlled computer for loading an OS to the signal generator and displaying various operation status.
摘要:
An apparatus for use with an elevator car is operable to selectively lock an elevator car door. The apparatus verifies that the elevator car door is closed, locks the elevator car door, and verifies that a lock is engaged. Once conditions are met, the apparatus signals an elevator controller that the elevator car can move through a hoistway. The apparatus further ensures that passengers can safely disembark from the elevator car by detecting the position of the elevator car relative to a designated landing zone within the hoistway, and confirming the elevator car is stopped at a landing zone prior to disengaging the lock. The apparatus thus ensures that the elevator car door remains closed while the elevator car is in motion or between landing zones.
摘要:
A pixel and an organic light emitting display using the pixel capable of displaying an image of uniform luminance. A pixel circuit is coupled with at least one scan line and at least one data line. The pixel circuit first charges a voltage corresponding to a first data signal across at least one capacitor when the first data signal is supplied from the data lines, and second charges the at least one capacitor when a current as a second data signal is provided. The pixel circuit controls an amount of current supplied to a second power supply from the first power supply through the organic light emitting diode according to the voltage charged in the at least one capacitor. Accordingly, an image of uniform luminescence may be displayed.
摘要:
Provided is a micro-column electron beam apparatus including: a base; an electron lens bracket on which an electron lens modulate can be fixed, mounted in a central portion of the base; an electron beam source tip module vertically disposed on the electron lens module; a pan spring plate stage module that is mounted over the base, supports the electron beam source tip module at a central portion thereof, and includes a three-coupling pan spring plate portion including first through third spring units that are coupled to the electron beam source tip module in three directions on a plane perpendicular to the vertical axis, which vertically passes the center of the electron beam source tip module, to elastically support the electron beam source tip module in three directions; a first piezoelectric actuator coupled to the pan spring plate stage module to move the electron beam source tip module along a first axis perpendicular to the vertical axis; and a second piezoelectric actuator coupled to the pan spring plate stage module to move the electron beam source tip module along a second axis perpendicular to the vertical axis and the first axis.