摘要:
A fuel-cell stack includes a laminate having a plurality of unit cells laminated and accommodated in a box-like casing. The casing includes pairs of side plates arranged at the sides of the laminate and formed of a metal plate having a first thickness, and a plurality of hinge plates spot-welded to both ends of the side plates and formed of a metal plate having a second thickness greater than the first thickness. Of spot-welding electrodes, the spot-welding electrode has an end face formed with a concave. With the spot-welding electrode being arranged on the side of the hinge plate and with the hinge plate and the side plate being in press contact by the spot-welding electrodes, energization is carried out for welding.
摘要:
The present invention relates to a process for producing an optically active 1-alkyl-substituted 2,2,2-trifluoroethylamine, which is an important intermediate of medicines and agricultural chemicals, and which is represented by the formula [3] [in the formula R represents a lower alkyl group of a carbon and * represents an asymmetric carbon], or its salt by subjecting an optically active imine represented by the formula [1] to an asymmetric reduction under hydrogen atmosphere using a metal catalyst of Group VIII to convert it into an optically active secondary amine represented by the formula [2] and then by subjecting the secondary amine or its salt to hydrogenolysis. [Chem. 23]
摘要:
A ball bearing in which the heat value in an inner ring is decreased and the heat value in an outer ring is brought closer to the heat value in the inner ring by making the radius of curvature for the inner ring groove larger, and defining the radius of curvature for the outer ring groove as 50.5% to 53.0% of the ball diameter. The arrangement of the present invention suppresses the heat value in the entire ball bearing and extends the bearing life at a reduced cost without using a large flow rate lubrication method or a preloading method such as constant preloading. In addition, a decrease in heat generation, seizing resistance and wear resistance can be attained further by optimizing a relation between the raceway groove and the ball diameter, by optimizing the number of balls, by controlling the ingredient composition for the material of the bearing ring, and by forming a hard deposition film on the surface of the raceway groove. Thus, according to the present invention, a ball bearing having a long life is provided even during high speed rotation at a dmn value of 2,000,000 or more.
摘要:
A suction chuck and an inner cup are rotated in unison with each other to spread a coating solution uniformly over a planar object in the inner cup under centrifugal forces. Vent holes defined in an outer cup lid which closes an outer cup are held out of communication with vent holes defined in a ring-shaped closure member, so that the interior space in the outer cup is kept out of communication with the exterior space around the outer cup. The concentration of a solvent in the outer cup remains so high that no mist is produced in the outer cup. After the planar object has been coated and before the outer cup lid is opened, the ring-shaped closure member is turned to align the vent holes in the outer cup lid with the vent holes in the ring-shaped closure member, breaking any vacuum in the outer cup with ambient air introduced through the vent holes into the outer cup. Thereafter, the outer and inner cup lids are opened, and the coated planar object is taken out.
摘要:
A control system for opening or closing an opening-closing member when a foreign material is caught by the opening-closing member. The event that the opening-closing member catches the foreign material is decided on the basis of a driving state of a motor for driving the opening-closing member such as a power window. For example, the event that the event of catching the foreign material is decided when a driving acceleration or a driving velocity is less than a predetermined threshold X or Y, respectively. Each of the thresholds X and Y is set basically on the basis of the previous driving acceleration and velocity of the opening-closing member. The thresholds X and Y are corrected on the basis of a condition exerting an influence upon the driving state of the motor, for example, on the basis of a driving voltage or a resistance to a sliding movement of the opening-closing member.
摘要:
The purpose of the present invention is to improve the performance properties of the cable terminal end assembly and to make its configuration compact. A cable having signal wires and a ground wire are arranged laterally in a casing which is provided with a coupling section for coupling to the electrical device. The signal wires and the ground wires are separated by an insulation plate, and extend out from the ends of the cable into the casing. Signal wires and ground wires are bonded, to specific respective contact strips disposed inside the coupling section. The electrical connections inside the casing are molded with moulding. The advantage of the assembly configuration is that the cables are arranged laterally to house many cables compactly in the casing, and the insulation plate eliminates any possibility of shorting between the signal and ground wires, and signal distribution to the device is made possible, without the necessity for such costly parts as printed circuit board, by customized selection of the contact strips to be joined to the signal wires and to the ground wires in accordance with the requirements of the device.
摘要:
A electric storage device and a controller are disposed efficiently without obstructing ventilation, with a vehicle size equivalent to that of a normal shovel. A hybrid construction machine includes a device case which internally accommodates an electric storage device and a controller, and the device case is provided in a space above an upper frame, in a front portion of the upper frame and on the opposite side of two vertical plates from the cabin, and constitutes up-and-down steps which are formed in a rearward-ascending step shape so as to be able to be ascended and descended.
摘要:
A slewing-type working machine includes: a slewing motor which is a hydraulic motor for slewing; a variable-displacement hydraulic pump; a slewing operation device including an operation member; a control valve controlling the slewing motor based on an operation signal thereof; a pump regulator; a relief valve letting excess fluid to a tank; operation detectors detecting an operation direction and amount of the operation member; a motor rotational speed detector; and a controller controlling a discharge flow rate of the hydraulic pump. The controller obtains a deviation between a target rotational speed of the slewing motor obtained from a slewing operation amount and an actual rotational speed detected by the motor rotational speed detector, and controls the discharge flow rate to make the deviation closer to 0.
摘要:
A multi-core processor includes a monitored processor core whose process result is to be monitored; a monitoring processor core group including two or more monitoring processors which can perform a process for monitoring the monitored processor core; an evaluating part configured to evaluate a processing load of the monitoring processor core group; and a controlling part configured to make the monitoring processor core group perform the process for monitoring the monitored processor core in a distributed manner if the processing load of the monitoring processor core group evaluated by the evaluating part is low, and make the monitoring processor of the monitoring processor core group perform the process for monitoring the monitored processor core if the processing load of the monitoring processor core group evaluated by the evaluating part is high, the monitoring processor performing a process whose priority is relatively low.
摘要:
To provide a rolling bearing which is superior in preventing electrolytic corrosion, suitable for use in applications where torque reduction of the bearing is required by reducing an amount of lubricant used or by using a lubricant having a low viscosity, and has superior acoustic characteristics and durability, a rolling element according to the present invention is made of an alumina-zirconia composite material including an alumina component and either a zirconia component or a yttria-zirconia component containing 1.5 to 5 mol % of yttria, a mass ratio of the alumina component to the zirconia component or the yttria-zirconia component being 5:95 to 50:50.