Lg Electronics Inc.

Geun-Hyoung Lee

Kangwook Lee

Jin-Ung Shin

Yongchol Kwon

Sang-Myung Byun

Kang-Wook Cha

Hyuk Nam

Kang-Wook Lee

Seoung-Yeon Cho

Seung-Hyoung Ha

Jin-Soo Kim

Yongchul Kwon

A compressor is provided that eliminates sliding contacts between a cylinder and a roller to minimize mixing of lubricating oil into a refrigerant. The compressor includes a hermetic container that stores the lubricating oil at a lower portion thereof; a stator mounted within the hermetic container; a cylinder type rotor that rotates within the stator by a rotating electromagnetic field of the stator and defines a compression chamber therein; a roller that rotates and compresses the refrigerant by a rotational force transferred from the rotor; a rotational shaft integrally formed with the roller; a vane that divides the compression chamber into suction and compression regions and transfers the rotational force to the roller; and oil feed passages provided in the rotational shaft and the roller to feed the lubricating oil to areas where two or more members are slidingly engaged with one another within the compression chamber.

Compressor

A compressor is provided that includes a stator, a cylinder type rotor rotated within the stator by a rotating electromagnetic field of the stator and that defines a compression chamber inside, a roller that rotates within the compression chamber of the cylinder type rotor by a rotational force transferred from the rotor and compresses a refrigerant during rotation, a rotational shaft integrally formed with the roller and that protrudes from one side of the roller in an axial direction, a vane that divides the compression chamber into a suction region and a compression region, and transfers the rotational force from the cylinder type rotor to the roller, and a shaft cover and a cover joined to the cylinder type rotor in an axial direction that form the compression chamber in which the refrigerant is compressed. The shaft cover includes a suction port through which the refrigerant is sucked, and the cover receives the rotational shaft therethrough.

A rotary compressor is provided that includes an electric motor that supplies electric power and a compression mechanism that compresses a refrigerant while first and second rotary members rotate upon receipt of the electric power from the electric motor. More particularly, the compressor has a compact design by forming a compression space within the compressor by a rotor of the electric motor that drives the compressor, maximizes compression efficiency by minimizing friction loss between rotating elements within the compressor, and has a structure that minimizes leakage of the refrigerant within the compression space.

Compressor having first and second rotary member arrangement using a vane

A compressor is provided that includes a stator, a cylinder type rotor rotated within the stator by a rotating electromagnetic field of the stator and that defines a compression chamber inside, a roller that rotates within the compression chamber of the cylinder type rotor by a rotational force transferred from the rotor and compresses a refrigerant during rotation, a vane that divides the compression chamber into a suction region, into which the refrigerant is sucked, and a compression region, in which the refrigerant is compressed and discharged from, and transfers the rotational force from the cylinder type rotor to the roller, an axis of rotation that integrally extends from the roller in an axial direction, and a suction passage, through which the refrigerant is sucked into the compression chamber, through the axis of rotation and the roller.

A compressor is provided that includes a hermetically sealed container; a stator fixedly installed within the hermetically sealed container; a first rotary member that rotates, within the stator, around a first rotary shaft that extends concentrically with a center of the stator by a rotating electromagnetic field of the stator, and including first and second covers fixed to upper and lower parts thereof, respectively; a second rotary member that compresses a refrigerant in a compression space formed between the first and second rotary members while rotating, within the first rotary member, around a second rotary shaft; a vane that transmits the rotational force to the second rotary member from the first rotary member, and partitions the compression space into suction and compression regions; and first and second bearings fixed inside of the hermetically sealed container that rotatably support the first and second rotary members in an axial direction.

Provided is an air conditioning system comprised of a plurality of indoor units connected to each other in parallel, each having an expansion valve, and an outdoor unit including a plurality of compressors, in which at least one of the compressors provided to the outdoor unit is a capacity modulation compressor including an electromotive driving unit for driving a plurality of compression units capable of selectively compressing a working fluid, and the electromotive driving unit for the capacity modulation compressor has a stator with a coil wound around thereon and a rotor rotating inside the stator, the rotor being an LSPRM including a rotor core, flux barriers, permanent magnets and conductive bars.

Capacity modulation compressor and air conditioning system having the same

A capacity varying rotary compressor is provided. The compressor includes a cylinder mounted in a casing, and a vane pressure chamber provided at a rear side of a vane that divides an inner space of the cylinder into a suction chamber and a compression chamber. A pressure controlling unit supplies a discharge pressure or a suction pressure to the vane pressure chamber to thereby restrict or release a motion of the vane. A pressure leakage preventing unit couples the cylinder and bearings positioned at opposite sides of the cylinder to form the vane pressure chamber. A capacity to compress and discharge a refrigerant may be varied according to a load, thereby reducing power consumption of the compressor and simplifying assembly. Furthermore, pressure leakage from the vane pressure chamber may be prevented, thereby enhancing a capacity varying function.

Growing community of inventors

Busan, South Korea

Geun-Hyoung Lee