Abstract: A water electrolysis system produces hydrogen gas at a higher pressure than oxygen gas. A Peltier cooler is disposed between a gas-liquid separator and a back pressure valve in a hydrogen gas flow path, and cools and dehumidifies the hydrogen gas. A temperature sensor measures a temperature in the vicinity of the Peltier cooler, and outputs a temperature measurement value. A pressure sensor measures a pressure of the hydrogen gas between a cathode and the back pressure valve in the hydrogen gas flow path, and outputs a pressure measurement value. A control unit controls a cooling temperature by the Peltier cooler, in a manner so that the temperature measurement value becomes a target temperature that exceeds the freezing point of water corresponding to the pressure measurement value. At least a portion of the target temperature becomes lower as the pressure measurement value increases.

Abstract: In a water electrolysis system and a control method therefor, when a depressurizing process is performed, pressure reducing valves for high pressure reduce the pressure of a high pressure hydrogen. A first pressure detecting sensor detects, as a first pressure, a pressure of the high pressure hydrogen on a more upstream side than the pressure reducing valves for high pressure. A second pressure detecting sensor detects, as a second pressure, a pressure of the high pressure hydrogen on a more downstream side than a first pressure reducing valve of the pressure reducing valves for high pressure. Based on the first pressure or the second pressure, a controller controls a degree of opening of a depressurization control valve.

Abstract: A water electrolysis system includes a water electrolysis device; a water circulation circuit section including a water circulation pump; an antifreeze circulation circuit section including an antifreeze circulation pump; and a heat exchanger configured to perform heat exchange between the water circulation circuit section and the antifreeze circulation circuit section. Before water electrolysis is started by the water electrolysis device, a control device of the water electrolysis system circulates water by driving the water circulation pump and sets the antifreeze circulation pump to an operationally stopped state.

Abstract: In a water electrolysis system and a control method therefor, when a depressurizing process is performed, pressure reducing valves for high pressure reduce the pressure of a high pressure hydrogen. A first pressure detecting sensor detects, as a first pressure, a pressure of the high pressure hydrogen on a more upstream side than the pressure reducing valves for high pressure. A second pressure detecting sensor detects, as a second pressure, a pressure of the high pressure hydrogen on a more downstream side than a first pressure reducing valve of the pressure reducing valves for high pressure. Based on the first pressure or the second pressure, a controller controls a degree of opening of a depressurization control valve.

Abstract: A water electrolysis system produces hydrogen gas at a higher pressure than oxygen gas. A Peltier cooler is disposed between a gas-liquid separator and a back pressure valve in a hydrogen gas flow path, and cools and dehumidifies the hydrogen gas. A temperature sensor measures a temperature in the vicinity of the Peltier cooler, and outputs a temperature measurement value. A pressure sensor measures a pressure of the hydrogen gas between a cathode and the back pressure valve in the hydrogen gas flow path, and outputs a pressure measurement value. A control unit controls a cooling temperature by the Peltier cooler, in a manner so that the temperature measurement value becomes a target temperature that exceeds the freezing point of water corresponding to the pressure measurement value. At least a portion of the target temperature becomes lower as the pressure measurement value increases.

Abstract: A water electrolysis system is equipped with a water electrolysis device, a water supply passage, a hydrogen supply passage, a gas-liquid separator, a first water drainage passage, a first water drainage valve, a second water drainage valve, a determination unit, and a valve control unit. In a method of stopping operation of the water electrolysis system, in a water drainage step, in the case that the determination unit determines that operation of the water electrolysis device has been stopped, the first water drainage valve is controlled to be placed in a valve open state, thereby draining liquid water from the gas-liquid separator into the first water drainage passage.

Abstract: A water electrolysis system includes a water electrolysis unit; a housing; a ventilation device configured to cause air to flow inside a space of the housing; and a heating device provided on an upstream side of a water electrolysis device in a flow path of the air. A control device controls operation of the ventilation device based on ventilation temperature information detected by a ventilation temperature sensor provided above the water electrolysis device. Furthermore, the control device controls operation of the heating device based on heating temperature information of a heating temperature sensor provided between the heating device and the water electrolysis device in the flow path.

Abstract: A water electrolysis system includes a water electrolysis device; a water circulation circuit section including a water circulation pump; an antifreeze circulation circuit section including an antifreeze circulation pump; and a heat exchanger configured to perform heat exchange between the water circulation circuit section and the antifreeze circulation circuit section. Before water electrolysis is started by the water electrolysis device, a control device of the water electrolysis system circulates water by driving the water circulation pump and sets the antifreeze circulation pump to an operationally stopped state.

Abstract: A water electrolysis system is equipped with a water electrolysis device, a water supply passage, a hydrogen supply passage, a gas-liquid separator, a first water drainage passage, a first water drainage valve, a second water drainage valve, a determination unit, and a valve control unit. In a method of stopping operation of the water electrolysis system, in a water drainage step, in the case that the determination unit determines that operation of the water electrolysis device has been stopped, the first water drainage valve is controlled to be placed in a valve open state, thereby draining liquid water from the gas-liquid separator into the first water drainage passage.

Abstract: A storage capacity management system for a battery provided in a vehicle having an electric motor as a drive source includes a deteriorated state estimating unit that estimates a deteriorated state of the battery, a zone setting unit that sets a storage capacity where the battery can be used into a plurality of zones in accordance with a deteriorated state of the battery, a charged state calculating unit that calculates a charged state of the battery, a zone determination unit that determines to which zone of the plurality of zones set by the zone setting unit the charged state of the battery belongs, and a control instructing unit that instructs to execute a control associated with the charge or discharge of the battery in accordance with the zone determined by the zone determination unit.

Abstract: A storage capacity management system for a battery provided in a vehicle having an electric motor as a drive source includes a deteriorated state estimating unit that estimates a deteriorated state of the battery, a zone setting unit that sets a storage capacity where the battery can be used into a plurality of zones in accordance with a deteriorated state of the battery, a charged state calculating unit that calculates a charged state of the battery, a zone determination unit that determines to which zone of the plurality of zones set by the zone setting unit the charged state of the battery belongs, and a control instructing unit that instructs to execute a control associated with the charge or discharge of the battery in accordance with the zone determined by the zone determination unit.

Abstract: A control apparatus for an internal combustion engine that is startable by a motor driven by electric power supplied by an electric storage device, includes: a starting mode selection device for selecting either a first mode or a second mode as starting mode of the internal combustion engine; a control device for setting an output mode during outputting the electric power to the motor from the electric storage device, according to a result selected by the starting mode selection device, wherein the control device is adapted to set a flat mode, corresponding to the first mode, in which a predetermined electric power is continuously output and a pulse mode, corresponding to the second mode, in which electric power that varies with amplitude greater than a predetermined amplitude is output.

Abstract: A control apparatus for an internal combustion engine that is startable by a motor driven by electric power supplied by an electric storage device, includes: a starting mode selection device for selecting either a first mode or a second mode as starting mode of the internal combustion engine; a control device for setting an output mode during outputting the electric power to the motor from the electric storage device, according to a result selected by the starting mode selection device, wherein the control device is adapted to set a flat mode, corresponding to the first mode, in which a predetermined electric power is continuously output and a pulse mode, corresponding to the second mode, in which electric power that varies with amplitude greater than a predetermined amplitude is output.

Abstract: With a tag holding member and a device including the tag holding member, a commodity product can be detected by a detector even if the product is taken out of a packaging case. A holding member with a tag member includes a holding part having a groove for engaging with an upper end part of a chassis and a projection for engaging in an opening of the chassis, whereby the engaging part is engaged with and held by the upper side face and the opening of the chassis with high precision. The tag member is provided at a higher position than the upper end part of the chassis, and a distance from the outer cover can be set optionally. The holding member is held at the side face part of the chassis and covered with the outer cover, therefore the member can be held inside the commodity product.

Abstract: With a tag holding member and a device including the tag holding member, a commodity product can be detected by a detector even if the product is taken out of a packaging case. A holding member with a tag member includes a holding part having a groove for engaging with an upper end part of a chassis and a projection for engaging in an opening of the chassis, whereby the engaging part is engaged with and held by the upper side face and the opening of the chassis with high precision. The tag member is provided at a higher position than the upper end part of the chassis, and a distance from the outer cover can be set optionally. The holding member is held at the side face part of the chassis and covered with the outer cover, therefore the member can be held inside the commodity product.

Abstract: An optical disk apparatus for a double-sided optical disk has an optical pickup unit for reproducing information from the optical disk, and base members carrying driving unit for shifting the pickup unit and a guide mechanism for guiding the movement of the pickup unit. The drive of the pickup unit is conducted through a timing belt, and different reduction systems are used for reproducing operation of the optical pickup unit and for the shifting of the optical pickup unit from one to the other sides of the disk, by the operation of a switching mechanism for effecting switching between these reduction systems, such that, during the reproduction, the optical pickup unit is moved finely to provide a high resolution, whereas the shifting of the optical pickup unit from one to the other side of the disk is effected at a high speed. The motor as the power source therefore can operate at a low speed, thus reducing levels of vibration and noise.

Abstract: A pickup arm device comprising a rotary bearing having a mounting bed rotatable about both the vertical and horizontal axes, and an arm assembly consisting of an arm, a cartridge mounting head shell at one end thereof, a rider weight at the other end thereof and a mount or saddle which is formed between the ends thereof and adapted to be slidably mounted on the mounting bed of the rotary bearing, whereby the arm assembly including a cartridge may be easily replaced.

Abstract: In magnetic tape copying method and apparatus wherein a slave tape heated to a temperature near the Curie point and a master tape having a signal recorded thereon are put together with their magnetic surfaces in contact with each other and then cooled, an improvement of reheating the slave tape, after the completion of the transfer, under a smaller tension than that applied during the transfer at a temperature lower than the Curie point to prevent the occurence of skew distortion on a reproduced picture due to deformation with the passage of time of the slave tape.