Abstract: A semiconductor device includes a lead frame, an oscillator, an integrated circuit and first bonding wires. The oscillator includes plural terminals separated from each other by a predetermined distance, and that is mounted to an oscillator mounting region formed on a first face of the lead frame. The oscillator mounting region has a narrower width than the distance between the plural terminals. The integrated circuit is mounted to a second face of the lead frame, which is on an opposite side to the first face. The first bonding wires connect the plural terminals of the oscillator to terminals of the integrated circuit.

Abstract: A semiconductor device includes an oscillator that oscillates at a specific frequency, a semiconductor integrated circuit that integrates a temperature sensor that detects a peripheral temperature, and a controller that is electrically connected to the oscillator and that corrects temperature dependent error in the oscillation frequency of the oscillator based on the temperature detected by the temperature sensor and a sealing member that integrally seals the oscillator and the semiconductor integrated circuit.

Abstract: A boiler system includes a boiler group provided with a plurality of boilers and a controller for controlling a combustion state of the boiler group. The boiler group has a varied steam flow set to indicate reserve power corresponding to expected increase of a steam flow due to a sudden variation of a required load, and an increase minimum load factor set to indicate a load factor for output of a steam flow corresponding to the required load only from the combusting boilers with no increase of the number of combusted boilers. The controller increases the number of the combusted boilers when a total reserve steam flow of the combusting boilers is not more than the varied steam flow and the load factor of each of the combusting boilers is not lower than the increase minimum load factor.

Abstract: Each of the boilers has a unit steam flow U and a maximumly varied steam flow. The controller includes a deviation calculator for calculating a deviation amount between a necessary steam flow and an output steam flow, a boiler selector for selecting the plurality of boilers in the order of load factors, and an output controller for varying the steam flow of the boiler selected first by the boiler selector by the unit steam flow U for an amount corresponding to the maximumly varied steam flow when the deviation amount is at least the maximumly varied steam flow, and varying the steam flow of the selected boiler by the unit steam flow U for an amount corresponding to the deviation amount when the deviation amount is less than a maximumly increased steam flow.

Abstract: The invention improves system efficiency with no waste of heat held by a stopped boiler. A boiler system includes a boiler group having a plurality of boilers and a controller for controlling a combustion state of the boiler group. The controller includes a heat release determiner for determining whether or not the plurality of boilers includes a boiler releasing heat, a boiler increase determiner for determining, when the heat releasing boiler starts combustion and the heat releasing boiler and the other combusting boilers are combusted at equal load factors, whether or not the load factor is higher than a predetermined load factor, and an output controller for combusting the heat releasing boiler when the load factor is determined to be higher than the predetermined load factor.

Abstract: A boiler system includes a boiler group provided with a plurality of boilers and a controller for controlling a combustion state of the boiler group. The boiler group has a varied steam flow set to indicate reserve power corresponding to expected increase of a steam flow due to a sudden variation of a required load, and an increase minimum load factor set to indicate a load factor for output of a steam flow corresponding to the required load only from the combusting boilers with no increase of the number of combusted boilers. The controller increases the number of the combusted boilers when a total reserve steam flow of the combusting boilers is not more than the varied steam flow and the load factor of each of the combusting boilers is not lower than the increase minimum load factor.

Abstract: To prevent the decline in the volumetric efficiency and the decline in the performance of the heat pump having the reciprocating compressor integrated therein by decreasing the temperature of discharge gas in the reciprocating compressor with a simple construction, a heat pump unit 1 constituting a heat pump cycle in which the reciprocating compressor 3, a condenser 5, an expansion valve 7 and an evaporator 8 are interposed in a refrigerant circulating path 2,comprises a refrigerant-liquid returning path 9 for returning a portion of the refrigerant liquid having been condensed by the condenser 5 to a discharge chamber provided in a cylinder top assembly 20 of the reciprocating compressor 3 so that a portion of the refrigerant liquid is supplied to the discharge chamber 36 via the refrigerant-liquid returning path 9 and a discharge gas passageway 36a is cooled by evaporative latent heat of the refrigerant liquid.

Abstract: A semiconductor device includes: an oscillator including external terminals disposed on a first face with a specific distance along a first direction; an integrated circuit including a first region formed with first electrode pads along one side, and a second region formed with second electrode pads on two opposing sides of the first region; a lead frame that includes terminals at a peripheral portion, and on which the oscillator and the integrated circuit are mounted such that the external terminals, the first and second electrode pads face in a substantially same direction and such that one side of the integrated circuit is substantially parallel to the first direction: a first bonding wire that connects one external terminal to one first electrode pad; a second bonding wire that connects one terminal of one lead frame to one second electrode pad; and a sealing member that seals all of the components.

Abstract: A semiconductor device includes: an oscillator including external terminals disposed on a first face with a specific distance along a first direction; an integrated circuit including a first region formed with first electrode pads along one side, and a second region formed with second electrode pads on two opposing sides of the first region; a lead frame that includes terminals at a peripheral portion, and on which the oscillator and the integrated circuit are mounted such that the external terminals, the first and second electrode pads face in a substantially same direction and such that one side of the integrated circuit is substantially parallel to the first direction; a first bonding wire that connects one external terminal to one first electrode pad; a second bonding wire that connects one terminal of one lead frame to one second electrode pad; and a sealing member that seals all of the components.

Abstract: A controller includes a program for controlling a group of boilers having boilers with a plurality of staged combustion positions. The program is arranged to control the boilers and the combustion positions such that a total load following evaporation amount obtained by summing up load following evaporation amounts of the respective boilers comprising the group of boilers becomes equal to or more than a setup load following evaporation amount which is an evaporation amount that the group of boilers is to follow.

Abstract: A storage medium stores a program which, when executed by a controller, causes the controller to control a boiler group including boilers each of which has a plurality of stepwise combustion positions. The program includes the steps of calculating a number of a presently combustion shiftable boilers, a number of their combustion positions, or a gross evaporation quantity, calculating a deviation quantity between a set physical quantity and a present time physical quantity, calculating a ratio between the deviation quantity and a control width that corresponding to the set physical quantity, and calculating the combustion subject boilers and their combustion positions based on the number of the combustion shiftable boilers, the number of their combustion positions, or the gross evaporation quantity and the ratio.

Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.

Abstract: A semiconductor device includes an oscillator that oscillates at a specific frequency, a semiconductor integrated circuit that integrates a temperature sensor that detects a peripheral temperature, and a controller that is electrically connected to the oscillator and that corrects temperature dependent error in the oscillation frequency of the oscillator based on the temperature detected by the temperature sensor and a sealing member that integrally seals the oscillator and the semiconductor integrated circuit.

Abstract: A semiconductor device includes: an oscillator including external terminals disposed on a first face with a specific distance along a first direction; an integrated circuit including a first region formed with first electrode pads along one side, and a second region formed with second electrode pads on two opposing sides of the first region; a lead frame that includes terminals at a peripheral portion, and on which the oscillator and the integrated circuit are mounted such that the external terminals, the first and second electrode pads face in a substantially same direction and such that one side of the integrated circuit is substantially parallel to the first direction; a first bonding wire that connects one external terminal to one first electrode pad; a second bonding wire that connects one terminal of one lead frame to one second electrode pad; and a sealing member that seals all of the components.

Abstract: A semiconductor device includes a lead frame, an oscillator, an integrated circuit and first bonding wires. The oscillator includes plural terminals separated from each other by a predetermined distance, and that is mounted to an oscillator mounting region formed on a first face of the lead frame. The oscillator mounting region has a narrower width than the distance between the plural terminals. The integrated circuit is mounted to a second face of the lead frame, which is on an opposite side to the first face. The first bonding wires connect the plural terminals of the oscillator to terminals of the integrated circuit.

Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.

Abstract: A two-stage screw compressor has a low-pressure stage screw compressor and a high-pressure stage screw compressor integrally constructed. Compression space is formed by a male rotor and a female rotor, and operation gas is fed for compression to the compression space. A method of supplying lubrication oil prevents degradation of volumetric efficiency caused by return of lubrication oil, coming from a bearing and a shaft sealing device, to the low-pressure stage screw compressor. As a result, refrigeration capacity is improved and the amount of the lubrication oil is reduced.

Abstract: In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.

Abstract: A controller includes a program for controlling a group of boilers having boilers with a plurality of staged combustion positions. The program is arranged to control the boilers and the combustion positions such that a total load following evaporation amount obtained by summing up load following evaporation amounts of the respective boilers comprising the group of boilers becomes equal to or more than a setup load following evaporation amount which is an evaporation amount that the group of boilers is to follow.

Abstract: A storage medium stores a program which, when executed by a controller, causes the controller to control a boiler group including boilers each of which has a plurality of stepwise combustion positions. The program includes the steps of calculating a number of a presently combustion shiftable boilers, a number of their combustion positions, or a gross evaporation quantity, calculating a deviation quantity between a set physical quantity and a present time physical quantity, calculating a ratio between the deviation quantity and a control width that corresponding to the set physical quantity, and calculating the combustion subject boilers and their combustion positions based on the number of the combustion shiftable boilers, the number of their combustion positions, or the gross evaporation quantity and the ratio.