Lg Electronics Inc.

Wooho Cha

Song Leem Choi

Hojong Jeong

Baikyoung Chung

Byoungjin Ryu

Kakjoong Kim

Kwangho Shin

Kwanho Yum

Minhwan Choi

Jaeyoon Oh

Chungwoo Jung

Kyoungyoul Lee

Hongjoo Yang

Sejae Oh

A refrigerant regenerating apparatus is disclosed. A refrigerant regenerating apparatus of the present disclosure includes: a regenerator into which a refrigerant flows and from which the refrigerant is discharged, the regenerator configured to separate and discharge oil contained in a refrigerant flowing in the regenerator; and a recoverer into which the refrigerant discharged from the regenerator flows, the recoverer including a compressor configured to compress a refrigerant flowing in the recoverer and a heat exchanger configured to condense a refrigerant discharged from the compressor, in which the regenerator includes: a charger configured to charge oil contained in the refrigerant flowing in the regenerator with positive ions or negative ions using corona discharge; and a collector configured to electrically collect the oil charged through the charger.

Refrigerant regenerating apparatus

An air conditioner includes a plurality of heat exchangers provided to form an internal refrigerant flow path of an outdoor heat exchanger in multiple stages, a bypass pipe configured to branch refrigerant discharged from a compressor and to guide the refrigerant to the plurality of heat exchangers, flow pipes branched from the bypass pipe and extending to refrigerant pipes provided in the plurality of heat exchangers and overlap pipes branched from a flow pipe connected to any one of the plurality of heat exchangers and extending to a flow pipe connected to another heat exchanger.

Air conditioner

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.

Air conditioner having engine and generator

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.

Air conditioner and method for controlling an air conditioner

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. It is possible to cope with a wide range of heating loads while achieving high efficiency, using both the electric heat pump (EHP) system and the gas engine-driven heat pump (GHP) system.

Growing community of inventors

Seoul, South Korea

Wooho Cha