Abstract: Disclosed is a control system for a hydrogen addition internal combustion engine that uses hydrocarbon fuel and hydrogen gas as combustion fuel. The control system includes fuel property judgment means for judging the property of hydrocarbon fuel; and addition ratio increase means that, when the hydrocarbon fuel is found to be heavy, increases the ratio of hydrogen gas addition to the hydrocarbon fuel. When the hydrocarbon fuel is found to be heavy, the control system increases the ratio of hydrogen gas addition to the hydrocarbon fuel. It is therefore possible to inhibit the combustion state from deteriorating due to the use of heavy fuel, thereby offering good emission and driveability.

Abstract: There is provided a printed board machining apparatus that is capable of improving machining efficiency without hampering machining accuracy. The printed board machining apparatus includes a pressure foot which is provided with a port whose one end is opened at a lower surface of the pressure foot facing a stiffening plate, and whose other end is connected to a compressed gas source to blow out gas from the port at a pressure which does not interfere with the pressure foot pressurizing the stiffening plate and printed boards in machining the printed boards. It is noted that the gas is blown out during a period of time at least when the pressure foot and the stiffening plate are moving relatively in the horizontal direction.

Abstract: There is provided a laser machining apparatus, and a laser machining method using the same. The laser machining apparatus has a body portion having a plurality of laser irradiating sections and work mounting sections, a supplying stocker for supplying workpieces, and a discharging stocker for discharging the workpieces. The apparatus further comprises a supply-side transfer unit having work retaining tables capable of attracting/releasing the workpieces and being of the same number as the laser irradiating sections, and moving in vertical and horizontal directions, and a discharge-side transfer unit having work retaining tables capable of attracting/releasing the workpieces and being of the same number as the laser irradiating sections, and moving in vertical and horizontal directions.

Abstract: In a machining method and a machining apparatus, prior to machining, an NC control unit makes an X-axis drive unit move a table based on examination conditions specified in advance. Thus, the NC control unit obtains a stabilization time required from the command-reach time of a poisoning command and till the stabilization of position response of the table within a predetermined allowable range. Likewise, for moving a drill in a Y-axis direction, the NC control unit obtains a stabilization time required till the stabilization of position response within a predetermined allowable range. At the time of machining, the drill is moved in a Z-axis direction to cut into a printed wiring board as soon as the obtained stabilization time has passed.

Abstract: In a laser beam machining apparatus, a work supply station is disposed on one side of a laser beam machining apparatus body, and a work holding station is disposed on the other side of the laser beam machining apparatus body. Each of the work supply station and the work holding station is provided with a means for removing a work vertically and positioning the work w in a horizontal state on a machining table. A stocker including works disposed therein is disposed in the work supply station, and a stocker including no work disposed therein is disposed in the work holding station, so that a surface of a work w disposed in the stocker is machined, and the machined work is disposed in the stocker. When the machining of the works disposed in the stocker has been finished, the stocker is rotated through 180 degrees about a vertical axis by a lifter. Then, a back of the work is machined according to a procedure reverse from the above-described machining procedure.

Abstract: There is provided a method and a device capable of holding a sheet-like workpiece without wrinkles. The sheet-like workpiece holding method has steps of mounting the sheet-like workpiece in a state in which almost no tensile force is applied thereon on a machining table, pressing out wrinkles of the sheet-like workpiece by lowering a pressing member whose surface facing to the workpiece protrudes in the shape of a convex lens toward the workpiece so that the workpiece is pressed against the machining table, retaining the sheet-like workpiece on the machining table by means of sunction while continuously pressing the sheet-like workpiece by the pressing member and releasing the pressing force of the pressing member while retaining the sheet-like workpiece.

Abstract: The invention provides an active mass damper by use of which a machining apparatus can be downsized. The active mass damper includes a support unit for supporting a weight movably and horizontally, a motor for driving the weight, and a controller for controlling the motor. A torque command signal to be given to a motor of an X-table and a torque command signal to be given to a motor of a Z-table are put into the controller of the active mass damper so that the motor for driving the weight can be driven by feed-forward control using the torque command signals and feedback control based on the displacement of the weight.

Abstract: To provide a display panel having such a structure that a color filter is unlikely to suffer a damage due to a heat treatment in a reducing atmosphere in the fabrication process for display device. A display panel (anode panel AP) comprises a fluorescent region formed on a substrate, and an electrode (anode electrode) formed on the fluorescent region, wherein electrons emitted from an electron source penetrate the electrode and collide with the fluorescent region to allow the fluorescent region to emit light to obtain a desired image, wherein a color filter and a color filter protective film are formed in this order from the side of the substrate between the substrate and the fluorescent region.

Abstract: There is provided a laser machining apparatus for sheet-like workpieces that allows an installation area to be reduced and that may be readily controlled. The laser machining apparatus comprises a Y-table movable in X- and Y-plane directions orthogonal to a laser beam irradiated from an f? lens, a supply reel for holding a supply-side roll in which a sheet-like workpiece is rolled in a roll and capable of supplying the sheet-like workpiece, and a take-up reel for holding a take-up side roll in which the sheet-like workpiece whose machining has been finished is rolled up in a roll and capable of taking up the sheet-like workpiece. Machining is carried out by fixing the sheet-like workpiece in the machining area on the movable table and by irradiating the laser beam while relatively moving the movable table to the laser beam. Here, at least one of the supply reel and the take-up reel is disposed on the movable table.

Abstract: The invention provides an active mass damper by use of which a machining apparatus can be downsized. The active mass damper includes a support unit for supporting a weight movably and horizontally, a motor for driving the weight, and a controller for controlling the motor. A torque command signal to be given to a motor of an X-table and a torque command signal to be given to a motor of a Z-table are put into the controller of the active mass damper so that the motor for driving the weight can be driven by feed-forward control using the torque command signals and feedback control based on the displacement of the weight.

Abstract: A control apparatus is provided for a vehicle including an internal combustion engine and a continuously variable transmission capable of controlling an output speed of the engine. A controller of the control apparatus determines a first operating point at which a total fuel consumption amount is minimized as an optimal operating point, such that the total fuel consumption amount is obtained by adding an amount of a fuel consumed by an exhaust purifying device disposed in an exhaust system to an amount of a fuel consumed by the engine for generating a required output. The controller then controls an engine load and also controls a speed ratio of the transmission so that the engine operates at the optimal operating point.

Abstract: In a laser beam machining apparatus, a work supply station is disposed on one side of a laser beam machining apparatus body, and a work holding station is disposed on the other side of the laser beam machining apparatus body. Each of the work supply station and the work holding station is provided with a means for removing a work vertically and positioning the work w in a horizontal state on a machining table. A stocker including works disposed therein is disposed in the work supply station, and a stocker including no work disposed therein is disposed in the work holding station, so that a surface of a work w disposed in the stocker is machined, and the machined work is disposed in the stocker. When the machining of the works disposed in the stocker has been finished, the stocker is rotated through 180 degrees about a vertical axis by a lifter. Then, a back of the work is machined according to a procedure reverse from the above-described machining procedure.

Abstract: The Coriolis mass flow meter of this invention comprises two parallel curved flow tubes 1 and 2, a drive unit 15, and a pair of vibration sensors 16 and 17. An inlet-side manifold 24 dividing the flow of a fluid being measured into the two flow tubes 1 and 2 from the inlet thereof, and an outlet-side manifold 25 joining the fluid flows flowing in the two flow tubes 1 and 2 to discharge from the fluid outlet thereof are mechanically connected to a meter body 30 only at the inlet side of the inlet-side manifold 24 and at the outlet side of the outlet-side manifold 25, respectively. With this arrangement, the effects of vibration transmitted from the meter body 30 and all structures connected thereto can be reduced at the joint parts between the inlet-side and outlet-side manifolds 24 and 25 that serve as vibration fulcrums.

Abstract: The present invention relates to a laser beam machining apparatus which enables plural sheets of work to be mounted so as to be simultaneously processed, and which has a small size, even in the case where the number of sheets of work is increased.

Abstract: A control apparatus is provided for a vehicle including an internal combustion engine and a continuously variable transmission capable of controlling an output speed of the engine. A controller of the control apparatus determines a first operating point at which a total fuel consumption amount is minimized as an optimal operating point, such that the total fuel consumption amount is obtained by adding an amount of a fuel consumed by an exhaust purifying device disposed in an exhaust system to an amount of a fuel consumed by the engine for generating a required output. The controller then controls an engine load and also controls a speed ratio of the transmission so that the engine operates at the optimal operating point.

Abstract: There is provided a spindle unit having a pressure foot whose machining efficiency may be improved even when compressed air is used as means for pressing the pressure foot. The spindle unit having the pressure foot comprises a rotor shaft provided within a base rotatably and movably along an axis, a collet chuck provided at one end of the rotor shaft, a linear motor for moving a movable element rotatably connected with the rotor shaft and movably provided within the base along the axis together with the rotor shaft to move a drill closer to or apart from the workpiece, a rotary motor for rotating the rotor shaft, a pressure foot disposed in front of the edge of the collet chuck and is capable of pressing down the workpiece, and air cylinders for connecting the movable element with the pressure foot so as to be relatively movable by a predetermined degree and for pressing the pressure foot in the direction separating from the collet chuck.

Abstract: There is provided a laser machining apparatus, and a laser machining method using the same, which allows an installation area thereof to be reduced while improving working efficiency. The laser machining apparatus has a body portion having a plurality of laser irradiating sections and work mounting sections, a supplying stocker for supplying workpieces, and a discharging stocker for discharging the workpieces. The apparatus further comprises a supply-side transfer unit having work retaining tables capable of attaching/detaching the workpieces and of the same number with the laser irradiating sections, and moving the work retaining tables in the vertical and horizontal directions, and a discharge-side transfer unit having work retaining tables capable attaching/detaching the workpieces and of the same number with the laser irradiating sections, and moving the work retaining tables in the vertical and horizontal directions.

Abstract: There is provided a printed board machining apparatus that is capable of improving machining efficiency without hampering machining accuracy. The printed board machining apparatus comprises a pressure foot which is provided with a port whose one end is opened to a lower surface thereof facing to a stiffening plate and whose other end is connected to a compressed gas source to blow out gas from the port at pressure which does not interfere the pressure foot from pressurizing the stiffening plate and printed boards in machining the printed boards. It is noted that the gas is blown out during a period of time at least when the pressure foot and the stiffening plate are moving relatively in the horizontal direction.

Abstract: A method and apparatus for controlling an internal combustion engine. A target cylinder torque required of one of a plurality of cylinders is individually calculated in accordance with a target engine torque, and a timing for opening and closing each of a plurality of intake and exhaust valves in each of the plurality of cylinders is determined in accordance with the target cylinder torque. Thereby the torque of the internal combustion engine is individually controlled for each of the plurality of cylinders.

Abstract: Two flow tubes 1 and 2 of a Coriolis mass flow meter are formed into an arch shape, with the tubes bent in only one direction. Entry-side and exit-side manifolds 25 are smoothly bent from the inlet of the entry-side manifold and the outlet of the exit-side manifold to joints connecting the two flow tubes to the manifolds, and connected to the flow tubes 1 and 2 at the joints at a predetermined angle in the same direction. By making the flow tubes into a parallel arched tube structure having good stress distribution and shock resistance, effects on the flow meter of external oscillations, installation conditions, piping stresses and thermal stresses can be reduced.