Abstract: Provided is an air-conditioning apparatus configured so that a decrease in a refrigeration capacity can be suppressed without increasing the amount of refrigerant with which a refrigerant circuit is filled and that refrigerant can be suitably stored during a pump down operation. The air-conditioning apparatus includes a first on-off valve provided at a pipe between an expansion valve and a use side heat exchanger, a bypass branching from a pipe between the expansion valve and the first on-off valve and connected to a pipe at a suction-side of a compressor, and a refrigerant storage unit configured to store the refrigerant having passed through the bypass. In a pump down operation in which the compressor operates with the first on-off valve being in a closed state, the refrigerant having flowed out from the heat source side heat exchanger flows into the bypass, and then, is stored in the refrigerant storage unit.

Abstract: Provided is an air-conditioning apparatus that can suppress occurrence of disproportionation (an autolytic reaction) when HFO1123 refrigerant or a refrigerant mixture containing HFO1123 is applied. The air-conditioning apparatus of the present invention includes a controller 40 controlling at least one of an operation frequency of a compressor 3, an opening degree of an expansion valve 7, and an air amount of a fan sending air to a heat-source-side heat exchanger 9 so that a temperature and a pressure of the refrigerant discharged from the compressor 3 do not exceed threshold values.

Abstract: A control unit configured to control a manipulated variable of an operational object so that a current value of a controlled object, which is one measurement obtained by the measurement unit configured to measure an operating state variable of the refrigerant circuit, reaches a target value of the controlled object determined based on measurements other than the one measurement. The control unit determines, while the current value is lower than a lower limit value of an upper limit value and the lower limit value of a settling range in which the target value is centered, the manipulated variable by using the upper limit value as a target value, determines the manipulated variable by using the lower limit value as a target value, and determines, after the current value falls within the settling range, the manipulated variable based on a reference allowable overshoot ratio Xb, which is a preset overshoot ratio.

Abstract: A predicted value of a condensing temperature of refrigerant and a predicted value of an evaporating temperature of the refrigerant after a compressor is started or after an operating capacity of the compressor is changed are calculated based on a condensor suction air temperature, an evaporator suction air temperature, and a compressor operating capacity. Then, an opening degree to be set for an expansion valve is determined based on the predicted value, the predicted value, and the compressor operating capacity.

Abstract: An apparatus includes a refrigerant circuit in which a compressor that compresses a refrigerant, an indoor-side heat exchanger serving as a radiator that exchanges heat between the refrigerant and a heating target, an expansion valve that decompresses the refrigerant by opening-degree adjustment, and an outdoor-side heat exchanger serving as an evaporator that exchanges heat between a heat-exchange target and the refrigerant are connected by pipes. The apparatus includes: an outdoor air temperature sensor that detects a temperature of outdoor air serving as the heat-exchange target; a discharge-side temperature sensor that detects a discharge temperature of the refrigerant discharged by the compressor; and a controller that, when the controller determines that a rotation speed of the compressor is a maximum and the temperature of the heat-exchange target is lower than a preset temperature, controls an opening degree of the expansion valve by using the discharge temperature.

Abstract: A refrigeration cycle device includes: a casing that configures the outer contour of an outdoor machine, has a machine chamber and a blowing chamber formed therewithin, and has formed an introduction hole for introducing outside air into the machine chamber; a partition plate that partitions the interior of the casing so as to demarcate the machine chamber and the blowing chamber; a refrigeration cycle circuit, of which at least a portion is disposed in the machine chamber, and through which a combustible refrigerant circulates; and a blower disposed in the blowing chamber. A blow-through hole connecting from the machine chamber to the blowing chamber is formed in a bottom part of the partition plate. The outside air introduced into the machine chamber from the introduction hole flows through the blow-through hole and into the blowing chamber, and is sent outside the casing from a blow-out opening formed in the blowing chamber.

Abstract: An air-conditioning apparatus includes a time constant calculation unit that estimates a response time constant at a time when an opening degree of an expansion device is changed on the basis of specifications of a compressor that forms a refrigeration cycle of the air-conditioning apparatus, specifications of a load side heat exchanger, and an operating state quantity of the air-conditioning apparatus, a control constant calculation means that calculates at least one of a control gain of the opening degree of the expansion device and a control interval on the basis of a calculation result of the time constant calculation means, and a control constant change means that changes a control constant.

Abstract: A leading edge of a blade has a first curved portion provided with a leading-edge rearmost point, and a trailing edge of the blade has a second curved portion located on the inner circumferential side of the trailing edge and a third curved portion located on the outer circumferential side of the blade on the trailing edge. The third curved portion has a trailing-edge foremost point, and the second curved portion has a trailing-edge rearmost point. The trailing edge and a first concentric circle, which is one of concentric circles having as their center an axis of rotation and passes through the leading-edge rearmost point, intersect each other at a first intersection. The first intersection is located between the trailing-edge rearmost point and the trailing-edge foremost point.

Abstract: In an outdoor unit, at least the name of a refrigerant used is indicated on the outer side of a cover.

Abstract: A pipe joint is connected with a connecting pipe, and includes a pipe joint body and a nut member. When the connecting pipe formed with a bead expanded in the radial direction is connected with this pipe joint, a male thread of the pipe joint body is engaged with a female thread of the nut member to hold the bead between a tapered face and a tapered face. In addition, the joined portion between the bead and the tapered face forms a first sealed portion, and a joined portion between the bead and the tapered face forms a second sealed portion. Still further, a tapered face of the pipe joint body is joined with the tapered face of the nut member to form a third sealed portion.

Abstract: A Group III nitride semiconductor light-emitting device exhibiting reduced contact resistance between a p contact layer and an ITO electrode. The Group III nitride semiconductor light-emitting device has an AlGaN dot-like structure on the p contact layer, and an ITO electrode on the p contact layer and the dot-like structure. The dot-like structure has a structure in which a plurality of AlGaN dots are discretely distributed on the top surface of the p contact layer. The dot-like structure is bonded to oxygen, and oxygen increases on an interface between the p contact layer and the ITO electrode.

Abstract: To improve the separation efficiency of a gas-liquid separator in the gas-liquid separator and an air conditioner, the gas-liquid separator having a vessel with an inlet pipe and an outlet pipe is arranged such that an exit end section of the inlet pipe is formed to be closed or to have a gap, an expanded end section having a width greater than the diameter of that portion of the inlet pipe which crosses a container of the gas-liquid separator is provided, and that a lateral hole is formed in a side face of the expanded end section. Refrigerant vapor and refrigerant liquid are efficiently separated from each other at the expanded end section, and this improves separation efficiency of the gas-liquid separator.

Abstract: A Group III nitride semiconductor light-emitting device exhibiting reduced contact resistance between a p contact layer and an ITO electrode. The Group III nitride semiconductor light-emitting device has an AlGaN dot-like structure on the p contact layer, and an ITO electrode on the p contact layer and the dot-like structure. The dot-like structure has a structure in which a plurality of AlGaN dots are discretely distributed on the top surface of the p contact layer. The dot-like structure is bonded to oxygen, and oxygen increases on an interface between the p contact layer and the ITO electrode.

Abstract: To improve the separation efficiency of a gas-liquid separator in the gas-liquid separator and an air conditioner, the gas-liquid separator having a vessel with an inlet pipe and an outlet pipe is arranged such that an exit end section of the inlet pipe is formed to be closed or to have a gap, an expanded end section having a width greater than the diameter of that portion of the inlet pipe which crosses a container of the gas-liquid separator is provided, and that a lateral hole is formed in a side face of the expanded end section. Refrigerant vapor and refrigerant liquid are efficiently separated from each other at the expanded end section, and this improves separation efficiency of the gas-liquid separator.

Abstract: The Pyrazolo[1,5-a]pyrimidine derivatives represented by formula I and their pharmaceutically acceptable salts exhibit excellent MAPKAP-K2 inhibiting activity. Drugs comprising the compounds as effective ingredients are therefore expected to be useful as therapeutic or prophylactic agents for MAPKAP-K2 mediated disorder, such as inflammatory disease, autoimmune disease, destructive bone disorder, cancer and/or tumour growth.

Abstract: A harness protecting structure is provided for a vehicular horn for a vehicle, in which the vehicle has a grille defining an air intake opening in a front part of the vehicle, a radiator located posterior to the grille, and the horn being disposed in front of the radiator and facing the opening of the grille. The grille is provided with a peripheral wall, the peripheral wall extending posterior to the lower and side edge of the grill, and a part of the peripheral wall extending across and anterior to a peripheral region of the horn so as to form a protective surface. The harness of the horn is laid from the outside of the region of the horn behind the protective surface.

Abstract: The Pyrazolo[1,5-a]pyrimidine derivatives represented by formula I and their pharmaceutically acceptable salts exhibit excellent kinase inhibiting activity. Drugs comprising the compounds as effective ingredients are therefore expected to be useful as therapeutic or prophylactic agents for a protein kinase mediated disorder in which kinase is implicated, such as inflammatory disease, autoimmune disease, destructive bone disorder, cancer and/or tumour growth.