Abstract:
Hydrogen-rich reformate gas is produced by a fuel reformer (2) from fuel vapor containing hydrocarbon, which is produced by a fuel vaporizer (6), by means of a partial oxidation reaction and a steam reforming reaction. A fuel injector (8, 9) supplies fuel to the fuel vaporizer (6), and an air injector (8a) supplies air to the fuel vaporizer (6). A glow plug (13) partially oxidizes the air-fuel mixture inside the fuel vaporizer (6). By controlling the air supply amount in relation to the fuel supply amount to obtain an excess air factor corresponding to a predetermined rich air-fuel ratio, a part of the air-fuel mixture in the fuel vaporizer (6) is partially oxidized, and the remaining fuel vapor is heated by the oxidation heat. As a result, the partial oxidation reaction and steam reforming reaction in the fuel reformer (2) are performed with a favorable balance.
Abstract:
The required RAM capacity is reduced by dividing an interleaving RAM in a baseband modulator into a plurality of areas and having the read side and the write side use some common areas on a time-sharing basis.
Abstract:
An electron beam detector detects a peak of a spectrum, and when a peak position is deviated from a reference position on the electron beam detector, a controller for controlling an electron beam position on the electron beam detector is used to correct a deviation. An electron energy loss spectrum is measured while controlling correction a deviation between an electron beam position on a specimen, and a peak position of the spectrum, and a spectrum measuring with the electron beam detector.
Abstract:
A comparator compares a control voltage obtained by amplifying the difference between an output voltage of a DC voltage outputting circuit and a reference voltage, with the voltage between both ends of a sense resistor. The result of this comparison is input to the reset terminal "R" of a flip-flop circuit as a reset signal. For example, if a light load is connected to the DC voltage outputting circuit, the control voltage to be output to the comparators via an amplifier will drop and the output voltage of the DC outputting circuit will rise. Therefore, a threshold voltage is provided to another comparator to which the control voltage is input, and a set pulse signal is not output to the set terminal "S" of the flip-flop circuit if the control voltage is not equal to or higher than the threshold voltage. As a result, the average value of the control voltage can be raised by the value of the threshold voltage, and the voltage rising of the DC voltage outputting circuit can be suppressed in comparison with the conventional system, thereby improving a load regulation.
Abstract:
A disk loading mechanism includes disk cartridge positioning pins integrally formed in the base of a chassis portion thereof. In addition, at one side of the base of the chassis, a hooked portion is provided for securing a printed ciruit board to a lower side of the chassis. In addition, the base plate of the chassis mounts a damper fox smoothly controlling slider movement in a recess such that an overall height of the unit is reduced. According to such construction, reliable operation is assured with a reduced number of parts, such that manufacturing complexity and costs can be significantly reduced.
Abstract:
A specimen cartridge fashioned of a good thermal conductor, with an outer frame being fashioned of heat insulating material, and with a connecting rod being fashioned of a poor thermal conductor. A temperature distribution of the specimen is uniform and a temperature drift is reduced, with a thermal expansion of a specimen cartridge tilting rod not affecting the tilting angle, thereby making it possible to perform various highly accurate observations and measurements with an electron microscope.
Abstract:
A method of forming by CVD technique a layer of material with good uniformity and reproducibility on the surfaces of a plurality of substrates supported within the reaction chamber. The feature of the invention is that a gaseous mixture containing a reaction gas is supplied into the reaction chamber from the inlet of the reaction chamber and the auxiliary gas nozzle provided between the inlet and the exhaust in a predetermined control manner. Moreover, part of the gaseous mixture within the reaction chamber is sampled from the gas flow for the measurement of the concentration of the reaction gas, and from the measured results is determined the rate of gas supply from the auxiliary gas nozzle.
Abstract:
For implementing a stop control which extracts a current from a fuel cell and consumes a cathode side oxygen at a system stop, the current extraction from the fuel cell is ended in a state that a certain quantity of oxygen smaller than when the current extraction is started remains on a cathode side of the fuel cell. With this, the hydrogen movement to the cathode side after the system stop can be effectively suppressed and thereby a cathode internal hydrogen concentration at the system start can be kept low, thus making it possible to properly process the cathode side hydrogen at the system start.
Abstract:
Deterioration at the start-up and deterioration during the leaving period are suppressed in a good balance. As a system shutdown process, a controller (30) causes consumption of the air (oxygen) present in an oxidant electrode of a fuel cell stack (1) (oxygen consumption control). Further, after the termination of the oxygen consumption control, the controller (30) performs control to set a medium pressure hydrogen valve (13) and a hydrogen pressure adjustment valve (14) in a closed state. The controller (30) thereby causes hydrogen to be held in a passage located between the medium pressure hydrogen valve (13) and the hydrogen pressure adjustment valve (14). During a system shutdown period, a predetermined amount of hydrogen (medium pressure hydrogen) held in the hydrogen supply passage (L1) at a position between the medium pressure hydrogen valve (13) and the hydrogen pressure adjustment valve (14) can be supplied to the fuel electrode of the fuel cell stack (1) through a bypass passage (L2).
Abstract:
A position sensor cord includes a hollow insulator formed of a restorable rubber or a restorable plastic, and two linear resistive members. Each of the two linear resistive members includes a linear insulator and a conductive layer provided around a circumference of the linear insulator. The conductive layer is formed of a conductive rubber or a conductive plastic. The two linear resistive members are arranged in no electrical contact with each other and along an inner surface of the hollow insulator. One of the two linear resistive members may be replaced with one linear conductive member.