摘要:
A fuel cell system includes: a fuel cell to which a reaction gas is supplied to generate electricity; a circulating system which returns unreacted reaction gas discharged from the fuel cell to an upstream of the fuel cell to thereby circulate the unreacted reaction gas; a discharge device which discharges the unreacted reaction gas from the circulating system; a first pressure detector which detects a pressure at a downstream of the discharge device; and a controller which controls an amount of discharged gas to be discharged from the circulating system by the discharge device, based on the pressure detected by the first pressure detector.
摘要:
A pressure roller support member that rotatably supports a pressure roller is supported to a fixing unit case so as to be capable of swaying. A spacer member is supported to the pressure roller support member so as to be capable of swaying. A spacer section is formed at an end of the spacer member. When the spacer member sways, the spacer section moves between a first position where the spacer section is clamped between the fixing unit case and the pressure roller support member and a second position where the clamp between the fixing unit case and the pressure roller support member is released.
摘要:
A fuel cell system includes: a fuel cell that generates an electric power and heat by a reaction of a reaction gas; a heat exchanger; a coolant circuit for a coolant between the fuel cell and the heat exchanger; a coolant circulating pump for circulating the coolant in the coolant circuit; and a drive motor for driving the coolant circulating pump, the coolant receiving and carrying the heat to the heat exchanger by the coolant circuit, the coolant circulating pump, and the drive motor. A rotational speed of the drive motor is controlled according to an upper limit of the rotational speed of the drive motor which may be determined on the basis of a cooling capacity of the heat exchanger, a speed of the vehicle mounting the fuel cell system, a generated electric power, and a flow rate of the reaction gas.
摘要:
There is provided a fuel cell for generating a electric power by a reaction of a reaction gas, a reaction gas flow path through which the reaction gas passes, purge section for purging the reaction gas flow path with a purging gas, a purge judging section for judging as to whether or not a purging operation by the purge section is required, and a failure detecting section for detecting a failure of a judgment support device. When the failure of the judgment support device is detected by the failure detecting section, there action gas flow path is purged by the purge section when stopping the power generation of the fuel cell.
摘要:
A fuel cell system includes a fuel cell having a fuel gas flow path and an oxidant gas flow path; a compressor for supplying humidified air to the oxidant gas flow path; a back-pressure regulating valve for controlling pressure of humidified air in the oxidant gas flow path; a pressure sensor for measuring the pressure of the humidified air in the oxidant gas flow path; and a control section for controlling the compressor and the back-pressure regulating valve. In this system, the pressure of humidified air in the oxidant gas flow path is regulated to become equal or approximate to a target pressure by the back-pressure regulating valve. When the pressure difference between the pressure measured by the pressure sensor and the target pressure is larger than a predetermined pressure difference, the control section corrects operating conditions of the compressor, so that the measured pressure becomes the target pressure.
摘要:
There has been such a drawback that it is difficult to accurately estimate the location of mobile station MS in a mobile communication system. To solve the problem, according to the mobile communication system of the present invention, a mobile station and several base station cooperate for estimation. First the base stations BS in which the mobile station is laid and other base stations adjacent thereto each measure the receipt levels of the radio wave radiated by the mobile station to notify the position manage center of the receipt levels. Second the position manage center instructs the mobile station to control the radio wave pursuant to the receipt levels in such a fashion the receipt levels are stabilized; finally. Third each base station measure the distance between the base station and the mobile station based upon the propagation time of the radio wave to inform the position manage center of the distance. Finally, the position manage center estimates the location of the mobile station based upon a point or several points given by the circles defined using the distances.
摘要:
A sheet feeding device includes a sheet cassette which accommodates stacked sheets. The sheet feeding device further includes a pickup roller, a separation pad, a separating roller pressing the sheet against the separating pad and a holder arm which holds the pickup roller and the separating roller. The sheet feeding device still further includes an urging member configured to urge the separating roller toward the separating pad and includes a supporting portion configured to support a specific portion of the holder arm. When the sheet cassette is removed, the support portion supports the specific portion of the holder arm at a supporting position and the pickup roller is positioned at an upper position.
摘要:
An image forming device includes a casing formed with an opening, a pivot member pivotably disposed in the casing so as to be selectively opened and closed, a cover disposed outward of the pivot member, a lock mechanism that maintains a closed state of the pivot member, and a link mechanism. When a first force is applied on the cover to open the cover beyond a predetermined angle, the link mechanism transmits the first force as a second force to the pivot member. The second force is in an opening direction of the pivot member.
摘要:
A fuel cell system includes a control device for setting an oxygen-containing gas operating pressure target value on the cathode side using a relative pressure relative to atmospheric pressure, setting a fuel gas operating pressure target value on the anode side using an absolute pressure, and controlling a power generation current of the fuel cell using as command values the relative pressure and the absolute pressure. The control device controls operation of the entire fuel cell system.
摘要:
An object of the present invention is to provide a fuel cell system in which a noise and a vibration of a compressor can be suppressed. In order to achieve the above object, the present invention provides a fuel cell system including a fuel cell; a compressor for supplying an oxidant gas to the fuel cell, having a first rotational speed region within which as a rotational speed increases, a noise becomes greater than a predetermined value, and a second rotational speed region within which as the rotational speed increases, the noise becomes equal to or less than the predetermined value; and a compressor controller for controlling the compressor by calculating a command rotational speed for commanding the compressor based on a required amount of power generation.