摘要:
A gas control and operation method of a fuel cell system for improved water and gas distribution is disclosed. The present invention provides for a mechanization of a fuel cell system that allows control of the anode reactant and anode effluent through the anode portions of the fuel cell system to improve water and gas distribution on the anode side of the fuel cells that increases the voltage stability of the fuel cells.
摘要:
A de-packaging system for removing film and bands from packages includes a first conveyor configured to move packages. The de-packaging system also includes a loading station for loading packages onto the conveyor, and a film cutting station associated with the first conveyor. The film cutting station includes a cutter having an elongated cutting element that can be heated to cut film on packages. A band cutting station includes a cutter for cutting bands wrapped around packages. A clamp device includes a clamp configured to clamp bands on packages for removal of the bands. The de-packaging system further includes a second conveyor having an upstream end adjacent a downstream end of the first conveyor. A device applies force to packages to move packages from the first conveyor to the second conveyor, and at least one friction member strips film from packages as they are moved from the first conveyor to the second conveyor.
摘要:
A method and apparatus for preventing or at least reducing condensation in a cathode exhaust conduit of a fuel cell is disclosed. The method includes introducing air into the fuel cell through an air intake conduit, removing an exhaust stream from the fuel cell through the cathode exhaust conduit and introducing excess air into the cathode exhaust conduit to prevent or reduce condensation of the exhaust stream in the cathode exhaust conduit. The apparatus includes an air intake conduit for introducing air into the fuel cell, a cathode exhaust conduit for distributing the exhaust stream from the fuel cell and an excess air diversion conduit providing fluid communication between the air intake conduit and the cathode exhaust conduit for diverting air from the air intake conduit and the cathode exhaust conduit.
摘要:
A process for the coating of the flow channels of a cylindrical, honeycomb form catalyst carrier with a dispersion coating through filling of the vertically oriented flow channels with a fill quantity of the coating dispersion through the bottom face of the catalyst carrier and subsequent downward emptying and clearance extraction of the flow channels, as well as drying and calcination of the catalyst carrier, by the following steps:a) filling of the flow channels with a fill quantity that is about 10% greater than the empty volume of the flow channels, so that the coating dispersion goes over the upper face of the catalyst carrier after completion of the filling cycle,b) removal of the excess coating dispersion at the top before emptying of the flow channels andc) emptying and clearance extraction of the flow channels through an extraction impulse, which is generated by connection of a vacuum tank with the bottom face of the catalyst carrier,whereby the time between the beginning of the fill cycle and the end of the emptying and clearance extraction amounts to no more than 5 seconds.
摘要:
A cylinder in a rotary printing press is inked with a highly viscous printing ink. An open ink duct is provided with a doctor blade that is supported negatively on the cylinder. A reserve of printing ink is added to the ink duct and is formed into an ink roll. A regular and intensive inking of the cylinder results with only very low ink circulation.
摘要:
A printing unit of a rotary printing press utilizes a "waterless" planographic printing plate which is fastened on a printing cylinder. This "waterless" planographic printing plate receives ink from a short inking unit and directly prints a material to be printed. An additional printing cylinder, that is also equipped with a "waterless" planographic printing plate, acts as the counterpressure cylinder.
摘要:
A method and apparatus for inking a "waterless" planographic printing plate utilizes an ink application unit and a separating agent application unit. These two units supply conventional ink and a separating agent either directly or indirectly to the planographic printing plate.
摘要:
Calibration of sensors of the type used for the cutaneous determination of blood oxygen and carbon dioxide levels is facilitated by providing separate sensor units, alternatively and removably connectable to a calibration device and to the measuring devices with which they are used for such determinations. The sensor units contain, in addition to a sensor electrode, a data memory in which is stored calibration data generated when the sensor unit is connected to the calibration device. The calibration device can provide a plurality of calibration stations, each capable of supplying a standard gas to a connected sensor and, in response to signals from the sensor exposed to the standard gas, generating data signals representing the calibration of the sensor, which signals are transmitted to the data memory of the sensor unit. Upon connection of the sensor unit to the measuring device, the calibration data from the data memory of the sensor unit are used as a calibration base for measurements by the sensor.
摘要:
A gas control and operation method of a fuel cell system for improved water and gas distribution is disclosed. The present invention provides for a mechanization of a fuel cell system that allows control of the anode reactant and anode effluent through the anode portions of the fuel cell system to improve water and gas distribution on the anode side of the fuel cells that increases the voltage stability of the fuel cells.