Abstract: In this shock absorber, a piston includes a first piston body, a second piston body, and a piston band. The first piston body includes a first passage, a second passage, a first seat, and a second seat. The first seat communicates with the first passage and on which a first damping valve is placed. A second damping valve is placed on the second seat. The second piston body includes a third passage, a fourth passage, a third seat, and a fourth seat. The third seat communicates with the fourth passage and on which a third damping valve is placed. A fourth damping valve is placed on the fourth seat.

Abstract: Provided is an abnormality diagnosis device capable of diagnosing an abnormality of a motor without setting many parameters. An abnormality diagnosis device includes a current measuring unit that measures a load current of the motor; a frequency analyzing unit that performs frequency analysis of the load current; and a deterioration degree calculating unit that calculates a degree of deterioration by adding up a preset number of intensity values from top in a preset frequency range.

Abstract: An insertion determination unit (16) for precisely calculating a ground insulation resistance component of a leakage current regardless of the presence or absence of an inverter determines whether an inverter (3) is inserted between a commercial power system (2) and a three-phase motor (5). A resistance component leakage current calculation unit (18) calculates a ground insulation resistance component of a leakage current on the basis of a calculation procedure corresponding to the result of the above determination.

Abstract: An insertion determination unit (16) for precisely calculating a ground insulation resistance component of a leakage current regardless of the presence or absence of an inverter determines whether an inverter (3) is inserted between a commercial power system (2) and a three-phase motor (5). A resistance component leakage current calculation unit (18) calculates a ground insulation resistance component of a leakage current on the basis of a calculation procedure corresponding to the result of the above determination.

Abstract: A state monitoring system for a rotating machine includes: a sensor head; a preamplifier; a main unit; and a temperature sensor The sensor head includes: an acceleration sensor configured to measure vibrations of the motor and output a vibration value; and a temperature sensor configured to measure a surface temperature of the motor and output a rotating machine surface temperature value. The main unit includes: a processor configured to compare a current vibration value with a determination threshold value and determine the state of the motor; a display unit configured to display the vibration value, the rotating machine surface temperature value, and the ambient temperature value; an output unit configured to output a determination result of the processor; and a communication unit configured to receive the determination threshold value from a host system and transmit the current vibration value and the determination result to the host system.

Abstract: A supply plate has a proximal end supported by a pivot shaft disposed parallel to a position-fixed shaft and a position-movable shaft. A position-movable shaft support member is pressed toward the position-fixed shaft so the first and second rolls are pressed at the contact point under a predetermined pressure. A link arm supported by a fulcrum shaft is pressed to a surface of the position-movable support member that faces the position-fixed shaft. The fulcrum shaft and the pivot shaft are connected. The contact point is shifted as the position-movable shaft support member moves toward the position-fixed shaft, and the pivot shaft is rotated around the axis line by the link arm, the fulcrum shaft, and the link mechanism based on the movement of the position-movable shaft support member, so the slant angle of the supply plate is automatically changed and the supply plate is directed to the contact point.

Abstract: A device for purification of exhaust gas including: an exhaust gas passage 15 connected to an internal combustion engine 10; a particulate matter trapping device 30 which is disposed in the exhaust gas passage 15, and which traps particulate matters in exhaust gas; ozone supply means 40 which is connected to the exhaust gas passage 15 and on an upstream side of the particulate matter trapping device 30, and which can supply ozone to the particulate matter trapping device 30; and an NO oxidizing catalyst 20 which is disposed in the exhaust gas passage 15 and on an upstream of the ozone supply means 40, and which oxidizes NO in the exhaust gas.

Abstract: A composite material includes an aggregate which contains a first metal particle constituting a core and second metal oxide particulates surrounding the first metal particle and having an average primary particle diameter ranging from 1 to 100 nm.

Abstract: An infrared sensor switch of the invention comprises an infrared sensor with a detection range, and a controller that uses the sensor to try to detect whether or not a person is present in the detection range and controls an ON or OFF state of a corresponding load unit based on each detection result obtained from the sensor. The switch further comprises a sensor block comprising the sensor, and a housing that is mounted in a wall and retains the block so that the center axis of the detection range can be rotated about a horizontal axis and as well as rotated up to at least 40 degrees downward from a forward direction of 0 degrees.

Abstract: A supply plate, which guides a material grain to a contact point between first and second rolls supported by a position-fixed shaft and a position-movable shaft respectively, has a proximal end portion supported by a pivot shaft in a relatively non-rotatable manner, the pivot shaft being disposed parallel to the position-fixed shaft and the position-movable shaft. A position-movable shaft support member that supports the position-movable shaft in a rotatable manner around the axis line is pressed toward the position-fixed shaft by a pressing mechanism so that the first and second rolls are pressed at the contact point to each other under a predetermined pressure. A link arm, which has a proximal end portion supported in a relatively non-rotatable manner by a fulcrum shaft parallel to the pivot shaft, is pressed to a surface of the position-movable support member that faces the position-fixed shaft. The fulcrum shaft and the pivot shaft are operatively connected to each other through a link mechanism.

Abstract: A device for purification of exhaust gas including: an exhaust gas passage 15 connected to an internal combustion engine 10; a particulate matter trapping device 30 which is disposed in the exhaust gas passage 15, and which traps particulate matters in exhaust gas; ozone supply means 40 which is connected to the exhaust gas passage 15 and on an upstream side of the particulate matter trapping device 30, and which can supply ozone to the particulate matter trapping device 30; and an NO oxidizing catalyst 20 which is disposed in the exhaust gas passage 15 and on an upstream of the ozone supply means 40, and which oxidizes NO in the exhaust gas.

Abstract: A composite material includes an aggregate which contains a first metal particle constituting a core and second metal oxide particulates surrounding the first metal particle and having an average primary particle diameter ranging from 1 to 100 nm.

Abstract: An infrared sensor switch of the invention comprises an infrared sensor with a detection range, and a controller that uses the sensor to try to detect whether or not a person exists in the detection range and controls on and off of a corresponding load unit based on each detection result obtained from the sensor. The switch further comprises a sensor block provided with the sensor, and a housing that is put in a wall and retains the block so that the center axis of the detection range can be rotated about a horizontal axis and rotated up to at least 40 degrees downward from a forward direction of 0 degree.

Abstract: A contacting step, in which a mixture gas, including a fuel and steam, is contacted with a reactor bed, including a reforming catalyst and a carbon dioxide adsorbent, thereby converting the mixture gas into hydrogen and adsorbing co-generating carbon dioxide onto the carbon dioxide adsorbent, and a heating step, in which the reactor bed is heated, thereby desorbing the adsorbed carbon dioxide from the carbon dioxide adsorbent and regenerating a carbon dioxide adsorption capacity thereof, are carried out alternately. The resulting CO is converted into H2 and CO2, and the converted CO2 is absorbed by the carbon dioxide adsorbent and is adsorbed outside the equilibrium system. Accordingly, methane is inhibited from co-generating. Hence, the reformed fuel gas is mostly composed of H2 and is free from methane, and the reaction temperature limitation, i.e., from 700 to 900° C., in the steam reforming reaction is not applicable any more.

Abstract: An exhaust gas purifying catalyst, for reducing nitrogen oxides and ammonia in an exhaust gas of an internal combustion engine, in an oxidizing atmosphere, is provided. The exhaust gas purifying catalyst comprises a first catalyst having zeolite carrying platinum and copper thereon. Preferably, the exhaust gas purifying catalyst further comprises a second catalyst having zeolite carrying copper thereon. Preferably, the second catalyst is arranged upstream of the first catalyst, with respect to the exhaust gas flow.

Abstract: Disclosed herein is a method and sensor for easily detecting the thermal history (or the change in state by heat) of a specimen. The sensor is made up of a pair of electrodes 1, 1, a diffusion layer 2 of insulating material disposed between the electrodes, and an electrically conductive metal 3. The electrodes are electrically isolated from each other in the beginning. As the sensor experiences heat history, the electrically conductive metal diffuses into the diffusion layer 2, thereby changing the resistance of the diffusion layer. When in use, the sensor is placed in or near the atmosphere to which the specimen is exposed. In response to the change of the specimen by heat, the electrically conductive metal 3 diffuses into the diffusion layer 2 to such an extent that the electrical resistance across the electrodes extremely decreases after a certain period of time. Thus it is possible to detect the deterioration or life of the specimen by monitoring the change in electrical resistance of the sensor.