Abstract: Provided is a heat-pump system including a plurality of compressors, wherein the plurality of compressors includes a first compressor and a second compressor that compress refrigerant, an oil separator provided on a discharge side of the plurality of compressors to separate oil mixed with refrigerant compressed by the plurality of compressors, an oil separation pipe extended from the oil separator to allow the plurality of compressors to recover oil, and a compressor side oil balance pipe extended from the second compressor to allow the first compressor to recover oil stored in the second compressor.

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include at least one indoor device, an outdoor device connected to the indoor device, the outdoor device including a compressor that compresses refrigerant, an engine generating a power using combustion gas, a generator that generates electricity using the power, a battery that receives at least a portion of the electricity, a first supply line that supplies the electricity stored in the battery into the outdoor device, and a second supply line that supplies the electricity stored in the battery into the at least one indoor device. The battery is charged by the generator, or the electricity stored in the battery is discharged into the indoor device or the outdoor device according to operation performance of each of the indoor device and the outdoor device.

Abstract: An air conditioner is provided. The air conditioner may include at least one indoor device, an electric heat pump (EHP) outdoor device connected with the at least one indoor device, and having a first compressor driven using electric power and a first outdoor heat exchanger, and a gas heat pump (GHP) outdoor device connected with the at least one indoor device, and having an engine portion driven through a combustion gas, a second compressor driven by receiving a driving force from the engine portion, and a second outdoor heat exchanger. The GHP outdoor device may include an engine circulation pipe in which a refrigerant flowing through the EHP outdoor device may be introduced and then supplied to the engine portion.

Abstract: A method of manufacturing a filter pipe for vehicles which has an expanded tube portion with a different diameter at one side and is provided with a plurality of through holes formed along a circumferential direction includes: forming the plurality of through holes in a mother member; forming furrows at one end portion of the mother member; forming a planar member having the plurality of through holes and the furrows by a shearing process of the mother member; bending the planar member in a tubular shape and spreading the furrows to form an area where the furrows are formed in an expanded tube shape; and adhering both facing end portions of the planar member so as to form a body having the expanded tube portion at one side thereof.

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include at least one indoor device, an electric heat pump (EHP) outdoor device connected to the at least one indoor device and having an EHP compressor driven using an applied current, and a gas heat pump (GHP) outdoor device connected to the at least one indoor device having an engine driven using a combustion of gas and a GHP compressor driven by receiving a driving force from the engine. The EHP compressor may include an inverter that controls a frequency of the current applied to the EHP compressor. The GHP compressor may include a first compressor that receives a driving force from the engine to compress a refrigerant; and a second compressor that is connected to the first compressor in parallel and receives the driving force from the engine to compress the refrigerant.

Abstract: An air conditioner is disclosed. The air conditioner includes an indoor unit, a first outdoor unit including a first outdoor heat exchanger and a first compressor to be driven by electricity, a second outdoor unit including a second outdoor heat exchanger and a second compressor to be driven by an engine, a cooling water line, through which cooling water to cool the engine flows, and at least one waste heat-recovering heat exchanger for exchanging heat between refrigerant to be introduced into at least one of the first outdoor heat exchanger and the second outdoor heat exchanger and the cooling water flowing through the cooling water line. By provision of the waste heat-recovering heat exchanger, which heat-exchanges hot cooling water with refrigerant flowing through the first and second outdoor heat exchangers, frost formed on the first and second outdoor units during low-temperature heating is removed.

Abstract: Disclosed is a method of manufacturing an anode for a thermally activated reserve battery using a thin metal foam and a cup, which includes rolling a metal foam, coating the metal foam with a molten eutectic salt, impregnating the metal foam with lithium, and providing the metal foam with an electrode cup and a conductive separation membrane, and in which lithium having excellent capacity and output characteristics is employed in an anode for a thermal battery operating at high temperature.

Abstract: The present invention relates to a novel compound or a pharmaceutically acceptable salt thereof inhibiting 11?-HSD1 enzyme activity, a preparation method of the same, and a pharmaceutical composition comprising the same as an active ingredient. Since the compound of the present invention selectively inhibits the activity of 11?-HSD1 (11?-Hydroxysteroid dehydrogenase type 1), the compound of the invention can be effectively used as a therapeutic agent for the treatment of diseases caused by the over-activation of 11?-HSD1 such as non-insulin dependent type II diabetes, insulin resistance, obesity, lipid disorder, metabolic syndrome, and other diseases or condition mediated by the excessive activity of glucocorticoid.

Abstract: Disclosed is a method of manufacturing an anode for a thermally activated reserve battery using a thin metal foam and a cup, which includes rolling a metal foam, coating the metal foam with a molten eutectic salt, impregnating the metal foam with lithium, and providing the metal foam with an electrode cup and a conductive separation membrane, and in which lithium having excellent capacity and output characteristics is employed in an anode for a thermal battery operating at high temperature.

Abstract: Provided are an air conditioner and a method of controlling the same. The air conditioner includes an indoor unit including an indoor heat exchanger, a first outdoor unit connected to the indoor unit, the first outdoor unit including a first compressor compressing a refrigerant and a first outdoor heat exchanger, a second outdoor unit including an engine generating a power by using combustion gas, a generator supplying electricity into the first compressor by using the power generated in the engine, a second compressor compressing the refrigerant by using the power of the engine, and a second outdoor heat exchanger, and a controller determining an additional operation of the second compressor on the basis of required cooling or heating load while the first compressor operates.

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include an EHP outdoor device configured to drive a first compressor using electric power, and having a first heat exchanger that evaporates or condenses a refrigerant; a GHP outdoor device having an engine configured to drive a second compressor using a burned gas and a second heat exchanger that evaporates or condenses the refrigerant; and a flow rate balancing device configured to connect the first heat exchanger with the second heat exchanger, and to control a flow rate of the refrigerant through the EHP outdoor device and the GHP outdoor device.

Abstract: An air conditioner and a method for controlling an air conditioner are provided.

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include at least one indoor device; an electric heat pump (EHP) outdoor device connected to the at least one indoor device, configured to drive a first compressor using electric power, and having a first outdoor heat exchanger for heat exchange of a refrigerant; a gas heat pump (GHP) outdoor device connected to the at least one indoor device, and having an engine configured to drive a second compressor using a burned gas, a second outdoor heat exchanger for heat exchange of the refrigerant, and a waste heat exchanger configured to exchange heat with the refrigerant using waste heat of the engine; and a low pressure refrigerant common pipe configured to connect the first outdoor heat exchanger with the second outdoor heat exchanger and to supply a low pressure refrigerant of the GHP outdoor device to the EHP outdoor device.

Abstract: An air conditioner is provided. The air conditioner may include at least one indoor device, an electric heat pump (EHP) outdoor device connected with the at least one indoor device, and having a first compressor driven using electric power and a first outdoor heat exchanger, and a gas heat pump (GHP) outdoor device connected with the at least one indoor device, and having an engine that drives a second compressor using a combustion gas and a second outdoor heat exchanger. The GHP outdoor device may include an exhaust gas heat exchanger that performs heat exchange between a refrigerant flowing through the EHP outdoor device and an exhaust gas of the engine.

Abstract: An air conditioner is provided. The air conditioner may include at least one indoor device, an electric heat pump (EHP) outdoor device connected with the at least one indoor device, and having a first compressor driven using electric power and a first outdoor heat exchanger, and a gas heat pump (GHP) outdoor device connected with the at least one indoor device, and having an engine portion driven through a combustion gas, a second compressor driven by receiving a driving force from the engine portion, and a second outdoor heat exchanger. The GHP outdoor device may include an engine circulation pipe in which a refrigerant flowing through the EHP outdoor device may be introduced and then supplied to the engine portion.

Abstract: Provided is an air conditioner including at least one indoor unit; an EHP outdoor unit connected with the at least one indoor unit, and configured to control an applied current and drive an EHP compressor; a GHP outdoor unit connected with the at least one indoor unit and including a GHP compressor configured to operate using power from an engine driven through a combustion gas and an oil separator provided at an outlet side of the GHP compressor; an oil level sensor provided at the EHP outdoor unit or the GHP outdoor unit and configured to detect an amount of oil; and a control part configured to control an RPM of the EHP compressor or the GHP compressor based on information detected by the oil level sensor.

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include at least one indoor device, an electric heat pump (EHP) outdoor device connected to the at least one indoor device and having an EHP compressor driven using an applied current, and a gas heat pump (GHP) outdoor device connected to the at least one indoor device having an engine driven using a combustion of gas and a GHP compressor driven by receiving a driving force from the engine. The EHP compressor may include an inverter that controls a frequency of the current applied to the EHP compressor. The GHP compressor may include a first compressor that receives a driving force from the engine to compress a refrigerant; and a second compressor that is connected to the first compressor in parallel and receives the driving force from the engine to compress the refrigerant.

Abstract: An air conditioner and a method for controlling an air conditioner are provided. The air conditioner may include at least one indoor device; an electric heat pump (EHP) outdoor device connected to the at least one indoor device, and configured to drive a first compressor using electric power; a gas heat pump (GHP) outdoor device connected to the at least one indoor device, and having an engine configured to drive a second compressor using a burned gas; and an exhaust device connected with the engine to discharge an exhaust gas of the engine, and configured to perform heat exchange with an outdoor heat exchanger provided at the EHP outdoor device.

Abstract: A method of manufacturing a filter pipe for vehicles which has an expanded tube portion with a different diameter at one side and is provided with a plurality of through holes formed along a circumferential direction includes: forming the plurality of through holes in a mother member; forming furrows at one end portion of the mother member; forming a planar member having the plurality of through holes and the furrows by a shearing process of the mother member; bending the planar member in a tubular shape and spreading the furrows to form an area where the furrows are formed in an expanded tube shape; and adhering both facing end portions of the planar member so as to form a body having the expanded tube portion at one side thereof.

Abstract: An air conditioner is provided. The air conditioner includes a blowing fan in which a plurality of blades are provided; a fan motor rotating the blowing fan; and a motor mount supporting the fan motor, wherein cut parts are formed in the motor mount by cutting at least a part of a surface passing above the motor mount while the blades are rotated.