Abstract: A turbocharger is provided with a rotor shaft and a semi-floating bearing arranged in a bearing chamber and rotatably supporting the rotor shaft. The semi-floating bearing has a pair of bearing portions located at two longitudinal ends. A region between the pair of bearing portions in an outer peripheral surface of the semi-floating bearing and an inner peripheral surface of the bearing chamber constitute an outside oil feed chamber to supply a lubricant oil to outer peripheral surfaces of the pair of bearing portions. A groove extending in a circumferential direction is formed in the outer peripheral surface of at least one of the bearing portions. An oil feed passage to supply the lubricant oil to the outside oil feed chamber and a discharge passage opposed to the groove and configured to discharge the lubricant oil in the groove downward are formed in the bearing housing.

Abstract: A flow rate adjustment method for a variable geometry turbocharger may include steps as follows. An adjustment apparatus drives an actuator to an abutment position where a power transmission member abuts a stopper. The apparatus acquires the abutment position opening amount based on an opening detection sensor's signal. The apparatus drives the actuator until the detection amount attains a pre-set amount, moving the power transmission member to a temporary control position. The apparatus acquires a temporary control position flow rate. It is acquired when an adjustment gas inflow apparatus causes the adjustment gas to flow into an exhaust turbine, and a flow rate measurement sensor measures the flow rate of the adjustment gas. The apparatus obtains a correction amount based on a difference between the temporary control position flow rate and a real control position flow rate, which is a proper flow rate corresponding to the pre-set amount.

Abstract: An optical fiber for a sensor that can measure a current or a voltage precisely is provided. The optical fiber for the sensor 10 comprises: an FBG 12 wherein a refractive index of a core changes periodically; a metal layer 13 for sheathing the FBG 12; and a pair of electrodes 14 and 15 provided at the metal layer 13. The electrodes 14 and 15 are connected to an object to be measured in desired positions. Current flowing through the metal layer 13 is calculated based on variation in Bragg wavelength of the FBG 12.

Abstract: An optical fiber for a temperature sensor and a power device monitoring system that can measure temperatures at different measurement positions by a simple construction are provided. An optical fiber for the sensor 10 comprises a temperature assurance FBG 20 and temperature measurement FBGs 30 as FBGs wherein the refractive index of a core changes periodically. Wavelength band of light incident to the optical fiber for the sensor 10 includes Bragg wavelengths of the temperature assurance FBG 20 and the temperature measurement FBGs 30. The power device monitoring system 1 measures temperatures of the temperature assurance FBG 20 and the temperature measurement FBGs 30 based on their Bragg wavelengths.

Abstract: A turbocharger is provided with a rotor shaft and a semi-floating bearing arranged in a bearing chamber and rotatably supporting the rotor shaft. The semi-floating bearing has a pair of bearing portions located at two longitudinal ends. A region between the pair of bearing portions in an outer peripheral surface of the semi-floating bearing and an inner peripheral surface of the bearing chamber constitute an outside oil feed chamber to supply a lubricant oil to outer peripheral surfaces of the pair of bearing portions. A groove extending in a circumferential direction is formed in the outer peripheral surface of at least one of the bearing portions. An oil feed passage to supply the lubricant oil to the outside oil feed chamber and a discharge passage opposed to the groove and configured to discharge the lubricant oil in the groove downward are formed in the bearing housing.

Abstract: An organic electroluminescent display panel includes a substrate, a plurality of first electrodes forming parallel stripes on the substrate, a plurality of electrical insulating partitions intersecting the first electrodes, an organic electroluminescent layer formed on the first electrodes and the partitions, a plurality of second electrodes located on the organic electroluminescent layer, and a sealing film. The second electrodes form stripes parallel with the partitions. An organic electroluminescent element is formed at each intersection of the first and second electrodes. The sealing film covers exposed portions of the first electrodes, the organic electroluminescent layer, the partitions, and the second electrodes. Each partition has an inverse tapered portion with a widened distal end.

Abstract: A liquid crystal display device (40) may comprise a liquid crystal display unit (20), a backlight (10), and a negative voltage generating circuit (30). The backlight (10) may be disposed at the posterior of the liquid crystal display unit (20). The backlight (10) may include an organic EL element (13). The negative voltage generating circuit (30) preferably supplies negative voltage to the liquid crystal display unit (20) and supplies reverse voltage to the organic EL element (13).

Abstract: A light emitting device (10) may comprise a constant current source (12), a first organic electroluminescent element (16), switches (14, 20), and a second organic electroluminescent element (18). The first organic electroluminescent element (16) may be connected to the constant current source (12). The switches (14, 20) may switch the direction of a voltage applied from the constant current source (12) to the first electroluminescent element (16). The second organic electroluminescent element (18) may be connected in parallel with the first organic electroluminescent element (16). When reverse voltage is applied to the first organic electroluminescent element (16), electric current from the constant current source (12) flows to the second organic electroluminescent element (18) and the second organic electroluminescent element (18) generates an electric potential.

Abstract: In an automatic cleaning device for use in the thermoplastics extrusion plastometer including a piston cleaning unit, a conveying unit, a cylinder cleaning unit and a die cleaning unit. The piston cleaning unit cleans the surface of the piston at plasticity testing positions. The conveying unit moves the cylinder from the plasticity testing position to a cylinder cleaning position and to a die cleaning position. The cylinder cleaning unit cleans the interior surface of the cylinder at a cylinder cleaning position. Finally, the die cleaning unit cleans the interior surface of the die at the die cleaning position.

Abstract: A tensile tester especially useful for colored specimens having pairs of projector-optic arrangements for detecting the presence of bench marks on a specimen and each including an ultraviolet lamp projector and an optic arrangement incorporating a detector for receiving luminescent rays emitted by the bench marks on the specimen upon being irradiated ultraviolet light from the projector. Support structure and a drive arrangement are provided for causing the projector optic arrangements to pursue automatically the bench marks controlled by detection of luminescent rays by means of the detectors in the optic arrangements. Elongation detectors are provided for transmitting respective displacement signals of the arrangements in response to the operation of the support and drive arrangements. An arithmetic unit of elongation is provided differences for receiving the signals from the elongation detectors and indicating the difference in spacing between the bench marks.