公开(公告)号：US09429156B2

公开(公告)日：2016-08-30

申请号：US14141713

申请日：2013-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Seseok Seol ,  Bumdong Sa ,  Byeongchul Lee

IPC: F04C23/00 ,  F04C15/00 ,  F01C21/08 ,  F04C18/04 ,  F04C2/34

CPC classification number: F04C15/0065 ,  F01C21/08 ,  F04C2/34 ,  F04C15/0088 ,  F04C18/045 ,  F04C23/001 ,  F04C23/008

Abstract: A compressor is provided that may include a cylinder including an outer cylinder portion, an inner cylinder portion, and a vane portion connected between the outer cylinder portion and the inner cylinder portion, which is fixed to a casing. A rolling piston may be slidably coupled to the vane portion to form an outer compression space and an inner compression space while making a turning movement between the outer cylinder portion and the inner cylinder portion. Through this, a weight of a rotating body may be reduced to obtain a low power loss with respect to the same cooling power and a small bearing area, thereby reducing refrigerant leakage as well as easily changing a capacity of a cylinder in an expanded manner. In addition, refrigerant may be discharged in opposite directions to each other in each compression space, thereby reducing vibration noise of the compressor.

Abstract translation: 提供一种压缩机，该压缩机可以包括一个气缸，它包括一个外筒部分，一个内筒部分和一个连接在外筒部分和内筒部分之间的叶片部分，该叶片部分固定在壳体上。 滚动活塞可以可滑动地联接到叶片部分，以在外筒部分和内筒部分之间形成转动运动的同时形成外部压缩空间和内部压缩空间。 由此，可以减小旋转体的重量，以相对于相同的冷却功率和小的轴承面积而获得低的功率损失，从而减少制冷剂泄漏以及容易地以扩大的方式改变气缸的容量。 此外，制冷剂可以在每个压缩空间中彼此相反的方向排出，从而减少压缩机的振动噪声。

公开(公告)号：US09394904B2

公开(公告)日：2016-07-19

申请号：US14141651

申请日：2013-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Bumdong Sa ,  Byeongchul Lee

IPC: F04C15/00 ,  F01C21/08 ,  F04C18/04 ,  F04C2/34 ,  F04C23/00

CPC classification number: F04C15/0065 ,  F01C21/08 ,  F04C2/34 ,  F04C18/045 ,  F04C23/008

Abstract: A compressor is provided that may include a cylinder including an outer cylinder portion and an inner cylinder portion, and a vane portion connected between the outer cylinder portion and inner cylinder portion, which is fixed to a casing. A rolling piston may be slidably coupled to the vane portion to form an outer compression space and an inner compression space while making a turning movement between the outer cylinder portion and the inner cylinder portion. Through this, a weight of a rotating body may be reduced to obtain low power loss with respect to a same cooling power and a small bearing area, thereby reducing refrigerant leakage as well as easily changing a capacity of a cylinder in an expanded manner. Moreover, refrigerant may be discharged in opposite directions in each compression space, thereby reducing vibration noise of the compressor. In addition, a back pressure groove may be formed on an upper surface of a drive transmission portion of the rolling piston, thereby reducing a friction area between the rolling piston and the upper bearing, as well as reducing a friction loss between the rolling piston and the upper bearing due to oil filled into the back pressure groove.

Abstract translation: 提供一种压缩机，其可以包括：外筒部和内筒部;以及连接在外筒部与内筒部之间的叶片部，该叶片部固定在壳体上。 滚动活塞可以可滑动地联接到叶片部分，以在外筒部分和内筒部分之间形成转动运动的同时形成外部压缩空间和内部压缩空间。 由此，可以减小旋转体的重量，以相对于相同的冷却功率和小的轴承面积获得低的功率损失，从而减少制冷剂泄漏以及容易地以扩大的方式改变气缸的容量。 此外，制冷剂可以在每个压缩空间中以相反方向排出，从而减少压缩机的振动噪声。 此外，可以在滚动活塞的驱动传递部分的上表面上形成背压槽，从而减少滚动活塞和上轴承之间的摩擦面积，并且减少滚动活塞和滚动活塞之间的摩擦损失 上轴承由于油填入背压槽。

公开(公告)号：US12253083B2

公开(公告)日：2025-03-18

申请号：US17926210

申请日：2021-04-15

Applicant: LG ELECTRONICS INC.

Inventor： Bumdong Sa ,  Seseok Seol ,  Seokhwan Moon

IPC: F04C18/344

Abstract: A rotary compressor is provided that may include a cylinder; a chamber eccentrically formed in the cylinder and accommodating a predetermined working fluid; a rotor rotatably received in the chamber and arranged so as to be concentric to the cylinder; first and second bearings disposed on upper and lower portions, respectively, of the cylinder so as to close the chamber, and which support a drive shaft of the rotor; a plurality of vanes movably installed on the rotor in a radial direction thereof, and protruding from the rotor up to an inner circumferential surface of the cylinder so as to divide the chamber into a plurality of compression spaces; first and second guide grooves which, in order to accommodate a portion of the vanes, are formed on respective surfaces, facing the chamber, of the first and second bearings so as to be concentric to the chamber, and guide the plurality of vanes while the rotor is rotating so that the plurality of vanes continuously protrude up to the inner circumferential surface of the cylinder; and an auxiliary bearing which is provided in at least one of the first guide groove or the second guide groove and rotating with the plurality of vanes.

公开(公告)号：US12098718B2

公开(公告)日：2024-09-24

申请号：US17972767

申请日：2022-10-25

Applicant: LG ELECTRONICS INC.

Inventor： Yongkyu Choi ,  Kiyoul Noh ,  Bumdong Sa

IPC: F04C18/344 ,  F04C14/12 ,  F04C23/00 ,  F04C29/00

CPC classification number: F04C14/12 ,  F04C18/344 ,  F04C23/008 ,  F04C29/0035 ,  F04C2240/50

Abstract: A rotary compressor, including a cylinder, an inner peripheral surface of which is defines a compression space, provided with a suction port configured to communicate with the compression space to suction and provide refrigerant to the compression space; a roller rotatably provided in the compression space of the cylinder, and including with a plurality of vane slots at predetermined intervals along an outer peripheral surface, the plurality of vanes each providing a back pressure at one side thereinside; a plurality of vanes slidably inserted into the plurality of vane slots, respectively, to rotate together with the roller, front end surfaces of the plurality of vanes coming into contact with an inner periphery of the cylinder due to the back pressure to partition the compression space into a plurality of compression chambers; and a main bearing and a sub bearing provided at both ends of the cylinder, respectively.

公开(公告)号：US11746783B2

公开(公告)日：2023-09-05

申请号：US17181076

申请日：2021-02-22

Applicant: LG ELECTRONICS INC.

Inventor： Seseok Seol ,  Seoungmin Kang ,  Bumdong Sa

IPC: F04C18/344 ,  F04C29/00

CPC classification number: F04C18/344 ,  F04C29/0028

Abstract: A rotary compressor is provided that may include a rotational shaft, first and second bearings configured to support the rotational shaft in a radial direction, a cylinder disposed between the first and second bearings to form a compression space, a rotor disposed in the compression space and coupled to the rotational shaft to compress a refrigerant as the rotor rotates, and at least one vane slidably inserted into the rotor, the at least one vane coming into contact with an inner peripheral surface of the cylinder to separate the compression space into a plurality of regions. The at least one vane may include a pin that extends in an axial direction, and at least one of the first bearing and the second bearing may include a rail groove into which the pin may be inserted.

公开(公告)号：US11421688B2

公开(公告)日：2022-08-23

申请号：US17113230

申请日：2020-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Bumdong Sa ,  Joonhong Park ,  Seseok Seol

IPC: F04C18/344 ,  F01C21/08 ,  F01C21/10 ,  F04C29/12

Abstract: A vane-type compressor is provided. The vane-type compressor may include a cylindrical cylinder having opposite open ends along an axial direction, an inner circumferential surface of the cylinder being eccentric from an outer circumferential surface of the cylinder, a main bearing and a sub bearing, respectively, positioned at the open ends of the cylinder, a rotor coupled to a shaft supported by the main bearing and the sub bearing and installed eccentric from the inner circumferential surface of the cylinder, and a plurality of vanes coupled to the rotor to rotate along with the rotor, the plurality of vanes dividing the inner circumferential surface of the cylinder into a plurality of spaces including a suction chamber and a compression chamber when the rotor rotates. An elastic member may be installed at a point at which a minimum gap is maintained between the inner circumferential surface of the cylinder and the rotor so that a portion of the elastic member protrudes inward of the inner circumferential surface of the cylinder. An end of a discharge dimple formed in the inner circumferential surface of the cylinder extends up to the point.

公开(公告)号：US20210301818A1

公开(公告)日：2021-09-30

申请号：US17096059

申请日：2020-11-12

Applicant: LG ELECTRONICS INC.

Inventor： Seokhwan Moon ,  Kiyoul Noh ,  Bumdong Sa

IPC: F04C9/00

Abstract: A rotary compressor may include a rotational shaft, a first bearing and a second bearing each supporting the rotational shaft in a radial direction, a cylinder disposed between the first bearing and the second bearing and forming a compression space, a roller disposed in the compression space to form a contact point spaced at a predetermined interval from the cylinder and coupled to the rotational shaft to compress a refrigerant in response to rotation of the roller, and at least one vane slidably inserted into the roller and in contact with an inner circumferential surface of the cylinder and dividing the compression space into a plurality of compression chambers. Each of the at least one vane may include a pin that extends in an axial direction of the rotational shaft. An inner lower surface of the first bearing or an upper surface of the second bearing may include a rail groove into which the pin is inserted.

公开(公告)号：US09188126B2

公开(公告)日：2015-11-17

申请号：US14051879

申请日：2013-10-11

Applicant: LG ELECTRONICS INC.

Inventor： Jinung Shin ,  Bumdong Sa ,  Yunhi Lee

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C11/00 ,  F04C23/00 ,  F04C29/02 ,  F04C18/356

CPC classification number: F04C23/008 ,  F04C18/356 ,  F04C23/001 ,  F04C29/028 ,  F04C2240/806

Abstract: A hermetic compressor is provided that may include a fluid guide disposed in an inner space of an intermediate chamber, so as to guide oil, discharged from a first compression chamber of a first compression device into the inner space of the intermediate chamber, to a second compression chamber of a second compression device without remaining in the inner space of the intermediate chamber, whereby noise generated due to an excessive amount of oil remaining in the inner space of the intermediate chamber may be reduced, and simultaneously a shortage of oil in the second compression device may be prevented.

Abstract translation: 提供一种封闭式压缩机，其可以包括设置在中间室的内部空间中的流体引导件，以将从第一压缩装置的第一压缩室排出的油引导到中间室的内部空间中， 第二压缩装置的压缩室不残留在中间室的内部空间中，由此可能减少由于残留在中间室的内部空间中的过量的油而产生的噪声，同时第二压缩室中的油的缺乏 可以防止压缩装置。