Abstract: A heat exchanger includes a plurality of principal heat exchange sections and auxiliary heat exchange sections. Each of the auxiliary heat exchange sections is in series connection to a corresponding one of the principal heat exchange sections. The number of the flat tubes constituting each of the heat exchange sections is compared to the number of the flat tubes constituting a corresponding one of the auxiliary heat exchange sections, creating a tube number ratio, wherein the first principal heat exchange section, which is lowermost, has the smallest tube number ratio. Consequently, discharge of liquid refrigerant from a lower portion of the first principal heat exchange section is accelerated during defrosting, thereby shortening the time required for defrosting.

Abstract: The humidifier includes a humidification section which vaporizes water to produce humidified air, and a fan which produces in an air passage an air flow delivering the humidified air to the outside. The humidifier further includes a sterilized water producing section which produces sterilized water, an ultrasonic irradiator which produces sterilizing mist through ultrasonic irradiation of the sterilized water, an auxiliary passage through which the sterilizing mist is delivered to the outside, and an operation switching mechanism. The operation switching mechanism is switched between a first operation mode in which the air passage and the auxiliary passage communicate with each other to introduce the sterilizing mist into the air passage, and a second operation mode in which communication between the air passage and the auxiliary passage is blocked.

Abstract: A compressor includes compression and drive mechanisms disposed in a casing having a cylindrical member. The compression mechanism includes a cylinder main body, an end surface member attached to the cylinder main body, a muffler main body attached to the end surface member, an intake hole communicating with the compression chamber and extending in a direction crossing the drive shaft, and a circular hole located radially outside the compression chamber and extending in a direction parallel to the drive shaft. The circular hole opens to a space inside the casing. At least a part of the circular hole is located within an area defined by extending the intake hole in a plan view. A method of producing a compressor includes inserting a positioning pin into the circular hole of the compression mechanism and pressing an inlet tube into the intake hole from outside of the cylindrical member.

Abstract: When power consumption of a load is smaller than a first threshold, a switch element of each of one or more circuits is made nonconductive to supply power from all of the one or more circuits to the load. When the power consumption of the load is larger than the first threshold, the switch element of at least one of the one or more circuits is made intermittently conductive to supply power from all of the one or more circuits to the load.

Abstract: Provided is a method for easily and safely removing, from a reactor, a catalyst used in a reaction that is performed using hydrogen fluoride in the presence of the catalyst. In a reaction performed in a reactor containing at least hydrogen fluoride and a catalyst, the catalyst is removed through a process comprising a heating step of performing heat-treatment so that the ambient temperature of the reactor is 80° C. or more after completion of the reaction, and a purge step of flowing inert gas into the reactor to discharge the hydrogen fluoride to the outside of the reactor after completion of the reaction.

Abstract: A water treatment vessel (10) causes electric discharge in water stored therein to produce a sterilizing factor. The water treatment vessel (10) moves in accordance with the level of water in a reservoir (30) to be switched between a discharging state where the water treatment vessel (10) and the reservoir (30) have no communication, and a pair of electrodes (16, 17) are immersed in water in the water treatment vessel (10) to cause the electric discharge, and a draining state where the pair of electrodes (16, 17) come out of water in the water treatment vessel (10) to stop the electric discharge, and water flows out of the water treatment vessel (10) into the reservoir (30). The water supplier (20) supplies water to the water treatment vessel (10) in the draining state, and stop the supply of water to the water treatment vessel (10) in the discharging state.

Abstract: When refrigerant gas leaks in an indoor unit, the leaked refrigerant gas locally accumulates in an area of the indoor space. This air conditioner includes an indoor unit having one or more outlets, and an outdoor unit connected to the indoor unit, wherein a flammable refrigerant or a mildly flammable refrigerant is used. The air conditioner includes a refrigerant gas sensor disposed in the indoor unit. When refrigerant gas is detected by the refrigerant gas sensor, a control is performed such that air is blown from the one or more outlets at a minimum air speed or higher, said minimum air speed being preset in accordance with the rated cooling capacity of the air conditioner.

Abstract: A discharge duty that is a duty at which a switch is conductive takes a value obtained by dividing a product of a crest value of a single-phase AC voltage and a square of a cosine value of a phase of the single-phase AC voltage by a both-end voltage across a capacitor. A sum of a product of a rectifying duty that is a duty at which a converter is conductive and a rectified voltage output from the converter and a product of the both-end voltage and the discharge duty varies in a period that is a half of the period of the single-phase AC voltage.

Abstract: A harmonic component extraction unit obtains a command value of compensating current from a harmonic component of the load current. A difference current generation unit obtains a deviation between the compensating current and a value obtained by leading a phase of the command value by a predetermined phase difference. A current controller generates a control signal based on output of the difference current generation unit. A driving signal generation circuit generates, based on the control signal, a driving signal driving a parallel active filter.

Abstract: The present invention aims to provide a method of producing a fluoropolymer, especially a fluoropolymer essentially including a tetrafluoroethylene or chlorotrifluoroethylene unit, at a higher polymerization rate with improved efficiency, the method being capable of improving the moldability in extrusion molding and suppressing discoloration. The method of producing a fluoropolymer of the present invention includes producing a fluoropolymer by polymerizing tetrafluoroethylene or chlorotrifluoroethylene in the presence of a peroxydicarbonate. The peroxydicarbonate is represented by the formula: R—O—C(?O)—O—O—C(?O)—O—R wherein R's may be the same as or different from each other and individually represent a C4 alkyl group or alkoxy alkyl group.

Abstract: The present invention relates to an air conditioner that adjusts room temperature to a set temperature, and the problem to be solved thereby is to reduce the frequency of occurrence of situations in which the room temperature does not approach the set temperature. In the air conditioner, a target suction pressure is set to a value obtained by subtracting, from an evaporation pressure of an indoor heat exchanger, a pressure loss estimation value from an inlet of the indoor heat exchanger to a suction port of a compressor so that an evaporation temperature of the indoor heat exchanger is maintained constant. The displacement of the compressor is controlled so that the suction pressure becomes equal to the target suction pressure. A deviation determination unit determines whether the room temperature is stabilized at a temperature deviated from the set temperature.

Abstract: The present invention provides compound of formulae (A1), (A2), (B1), (B2), (C1) and (C2) which can form a layer having water-repellency, oil-repellency and antifouling property as well as high friction durability: wherein each symbols are as defined in the specification.

Abstract: A heat exchanger includes a plurality of principal heat exchange sections and auxiliary heat exchange sections. Each of the auxiliary heat exchange sections is in series connection to a corresponding one of the principal heat exchange sections. Of tube number ratios of the number of the flat tubes constituting each of the heat exchange sections to the number of the flat tubes constituting a corresponding one of the auxiliary heat exchange sections, the first principal heat exchange sections which is the lowermost one has the smallest tube number ratio. Consequently, discharge of liquid refrigerant from a lower portion of the first principal heat exchange section is accelerated during defrosting, thereby shortening the time required for defrosting.

Abstract: A surface treatment agent which is an aqueous emulsion containing: (a) a fluorine-free polymer including: (i) repeating units derived from a long-chain (meth)acrylate ester monomer represented by the formula: CH2?CA11-C(?O)—O-A12, wherein A11 is a hydrogen atom or a methyl group, and A12 is a linear or branched aliphatic hydrocarbon group having 10-30 carbon atoms; (b) a surface active agent including both of a nonionic surface active agent and an anionic surface active agent, wherein the amount of the anionic surface active agent is at least 22% by weight, based on the total of the nonionic surface active agent and the anionic surface active agent; and (c) a liquid medium comprising water.

Abstract: A heat exchanger includes a plurality of principal heat exchange sections and auxiliary heat exchange sections. Each of the auxiliary heat exchange sections is in series connection to a corresponding one of the principal heat exchange sections. Of tube number ratios of the number of the flat tubes constituting each of the heat exchange sections to the number of the flat tubes constituting a corresponding one of the auxiliary heat exchange sections, the first principal heat exchange sections which is the lowermost one has the smallest tube number ratio. Consequently, discharge of liquid refrigerant from a lower portion of the first principal heat exchange section is accelerated during defrosting, thereby shortening the time required for defrosting.

Abstract: A motor driving apparatus includes a boosting section, a drive voltage output section, a detecting section, a storage section and a determining section. The boosting section generates a post-boosting voltage by boosting an input voltage. The drive voltage output section generates a drive voltage to drive a motor using the post-boosting voltage. The detecting section detects a value of the input voltage or a variation width relative to a reference value of the input voltage as variation power source variation information when there is power source variation. The storage section stores target value association information associating the power source variation information and a boosting target value of the post-boosting voltage. The determining section determines the boosting target value based on the power source variation information and target value association information. The target value association information is determined based on a range of operations of the drive voltage output section.

Abstract: A refrigeration device executes a chilling operation for cooling an interior so that the temperature of the interior reaches a set temperature that is set within a predetermined temperature range. The refrigeration device has an operation control unit that, in the chilling operation, switches between pull-down control and capacity control for cooling the interior with a cooling capacity lower than that of the pull-down control. The operation control unit performs the pull-down control until the temperature of air blown toward the interior reaches at least the set temperature.

Abstract: A remote control device of a heat pump system is useable to switch an operating state of the heat pump system. The remote control device includes a touch screen and physical keys provided separately from the touch screen. The touch screen is configured and arranged to display a plurality of touch keys displayed by words, graphics, or symbols associated separately with any of a plurality of set items. The physical keys include at least two function keys. A number of the function keys is fewer than a number of the set items and a number of the touch keys. The function keys are assigned a common function utilized when the operating state is switched. Same functions as when the touch keys are inputted are enacted by inputting the function keys.

Abstract: A heat-resistant electric wire including a core wire and a coating that covers the core wire. The coating is formed from a modified fluorine-containing copolymer that is obtained by irradiating a copolymer with radiation at an exposure of 250 kGy or lower at a temperature of not higher than the melting point of the copolymer. The copolymer is at least one copolymer selected from a copolymer including a tetrafluoroethylene unit and a perfluoro(alkyl vinyl ether) unit and a copolymer including a tetrafluoroethylene unit and a hexafluoropropylene unit.

Abstract: To avoid decline in the efficiency of a compressor at a low load, a thermal storage air conditioner has a refrigerant circuit (11) which has a compressor (22), an outdoor heat exchanger (23), and an indoor heat exchanger (72) and performs a refrigeration cycle, and a thermal storage section (60) which has a thermal storage medium and exchanges heat between the thermal storage medium and a refrigerant of the refrigerant circuit (11). The thermal storage air conditioner performs a simple cooling operation in which in the refrigerant circuit (11), the refrigerant is condensed in the outdoor heat exchanger (23) and evaporates in the indoor heat exchanger (72), and a cooling and cold thermal energy storage operation in which in the refrigerant circuit (11), the refrigerant is condensed in the outdoor heat exchanger (23) and evaporates in the indoor heat exchanger (72), and in which the thermal storage medium in the thermal storage section (60) is cooled by the refrigerant.