公开(公告)号：US20240151231A1

公开(公告)日：2024-05-09

申请号：US18282011

申请日：2022-03-16

Applicant: LG ELECTRONICS INC.

Inventor： Jinung SHIN ,  Joonhong PARK ,  Seoungmin KANG

IPC: F04C29/02 ,  F04C18/356

CPC classification number: F04C29/028 ,  F04C18/356 ,  F04C2240/30 ,  F04C2240/56 ,  F05B2240/60

Abstract: A rotary compressor is provided that may include a casing having an oil storage space; a cylinder; a main bearing and a sub bearing; a rotary shaft; a roller having a vane slot and a back pressure chamber; and at least one vane. An oil supply hole that communicates the back pressure chamber with the oil storage space may pass through the main bearing or the sub bearing, or through the roller. Accordingly, as high-pressure oil is supplied directly to a rear end surface of the vane, it is possible to increase efficiency of the compressor by increasing a back pressure on the vane and suppressing a delay in starting the compressor, and it is also possible to reduce collision noise and wear in the vane and the cylinder by suppressing vibration of the vane.

公开(公告)号：US20240167476A1

公开(公告)日：2024-05-23

申请号：US18283057

申请日：2022-03-18

Applicant: LG ELECTRONICS INC.

Inventor： Joonhong PARK ,  Seseok SEOL ,  Seoungmin KANG

IPC: F04C29/02

CPC classification number: F04C29/028 ,  F04C29/025 ,  F04C2240/50 ,  F04C2240/603 ,  F05B2210/14

Abstract: A rotary compressor is provided that may include at least one vane that is slidably inserted into at least one vane slot provided in a roller or a cylinder so as to separate a compression space into a plurality of compression chambers. The at least one vane has an at least one oil supply groove formed in at least one of axial side surfaces, respectively, facing a main bearing and a sub bearing. The at least one oil supply groove may be longer in a longitudinal direction of the at least one vane than in a widthwise direction of the at least one vane. With this structure, it is possible to suppress friction loss and wear on a friction surface by supplying oil to the friction surface in contact with the at least one vane.

公开(公告)号：US20230047035A1

公开(公告)日：2023-02-16

申请号：US17967094

申请日：2022-10-17

Applicant: LG ELECTRONICS INC.

Inventor： Kiyoul NOH ,  Seokhwan MOON ,  Joonhong PARK

IPC: F04C18/344 ,  F04C15/06

Abstract: A vane rotary compressor may include a main bearing and a sub bearing provided with a plurality of back pressure pockets each having a different pressure formed on a surface facing the cylinder, a rotational shaft radially supported by the main bearing and the sub bearing, a roller provided with a back pressure chamber that communicates with the plurality of back pressure pockets and having a plurality of vanes configured to divide a compression space into a plurality of compression chambers. At least one of the main bearing or the sub bearing is provided with an oil supply passage that communicates with a back pressure pocket having a relatively low pressure among the plurality of back pressure pockets. Accordingly, oil may be smoothly supplied to a back pressure pocket having a low pressure.

公开(公告)号：US20220034318A1

公开(公告)日：2022-02-03

申请号：US17502098

申请日：2021-10-15

Applicant: LG ELECTRONICS INC.

Inventor： Joonhong PARK ,  Kiyoul NOH ,  Seokhwan MOON

IPC: F04C18/344 ,  F04C29/02

Abstract: A vane rotary compressor includes a roller rotatably supported in a cylinder and including a plurality of vane slots formed along a circumferential direction with back pressure chambers formed at one end of each of the vane slots. A plurality of vanes are slidably supported in the vane slots protruding toward an inner circumferential surface of the cylinder. A compression space formed by the vanes between the roller and the cylinder includes an inlet port and an outlet port formed at both sides of a contact point between the roller and the cylinder. A vane positioned between the inlet port and the outlet port is configured such that a front gap between a front surface of the vane and the inner circumferential surface of the cylinder is smaller than a rear gap between a rear surface of the vane and an inner surface of the back pressure chamber.

公开(公告)号：US20190234407A1

公开(公告)日：2019-08-01

申请号：US16260313

申请日：2019-01-29

Applicant: LG ELECTRONICS INC.

Inventor： Joonhong PARK ,  Bumdong SA

IPC: F04C29/02 ,  F04C18/356 ,  F04C23/00

CPC classification number: F04C29/02 ,  F01C21/0845 ,  F04C18/3564 ,  F04C23/001 ,  F04C23/008 ,  F04C29/0057 ,  F04C29/023 ,  F04C2210/26 ,  F04C2240/40

Abstract: A rotary compressor may include a rotational shaft coupled to a drive motor and having a central passage, an eccentric portion provided eccentrically from the rotational shaft, a cylinder through which the rotational shaft passes, the cylinder forming a compression chamber in which refrigerant is accommodated, a roller an inner circumferential surface of which is in close contact with an outer circumferential surface of the eccentric portion, the roller rolling and compressing a refrigerant, a vane inserted into the cylinder, the vane protruding from an inner circumferential surface of the cylinder when backpressure is applied to the vane to be in contact with an outer circumferential surface of the roller, and partitioning the compression chamber into a plurality of chambers; a plurality of oil supply grooves on an outer circumferential surface of the eccentric portion; and an oil supply passage that communicates the central passage with the oil supply grooves.

公开(公告)号：US20230131102A1

公开(公告)日：2023-04-27

申请号：US17961672

申请日：2022-10-07

Applicant: LG ELECTRONICS INC.

Inventor： Sedong LEE ,  Seoungmin KANG ,  Joonhong PARK

IPC: F04C18/356 ,  F04C18/344 ,  F04C29/12

Abstract: A rotary compressor may include an outflow passage through which refrigerant flows out of a compression space. The outflow passage may include at least one first outflow guide portion disposed in a main bearing or a sub bearing, at least one second outflow guide portion formed through between both axial ends of a roller, and at least one third outflow guide portion disposed in a bearing opposite to the bearing with the at least one first outflow guide portion based on the roller, to communicate with the at least one first outflow guide portion through the at least one second outflow guide portion. This may minimize an amount of refrigerant remaining in the compression space, thereby enhancing compression efficiency. A pressure difference on a front of a vane may also be eliminated, which may suppress or prevent vane jumping, thereby reducing wear of the vane or cylinder. As the outflow passage is periodically opened, refrigerant leakage may be suppressed or prevented during a compression stroke, thereby preventing under-compression.

公开(公告)号：US20220243728A1

公开(公告)日：2022-08-04

申请号：US17562175

申请日：2021-12-27

Applicant: LG ELECTRONICS INC.

Inventor： Seseok SEOL ,  Jinung SHIN ,  Joonhong PARK

IPC: F04C2/344 ,  F04C15/06

Abstract: A rotary compressor may include a case, a cylinder, a roller, a vane, a main bearing and a sub bearing, and a discharge passage defined in the main bearing or the sub bearing to discharge refrigerant compressed in a compression space. The discharge passage may include at least one discharge hole formed through the main bearing or the sub bearing, and at least one discharge guide groove having a first end that communicates with the at least one discharge hole and a second end that extends from the at least one discharge hole toward a contact point between the cylinder and the roller and is recessed from one surface of the main bearing or the sub bearing forming the compression space. Accordingly, an amount of refrigerant remaining in the compression space even after a discharge stroke may be reduced.

公开(公告)号：US20180347565A1

公开(公告)日：2018-12-06

申请号：US15992314

申请日：2018-05-30

Applicant: LG Electronics Inc.

Inventor： Joonhong PARK ,  Bumdong SA

IPC: F04C14/24 ,  F04C15/06 ,  F04C2/344

Abstract: The present invention includes a case, a driving motor, a rotating shaft, a cylinder having a compression space formed in a central portion thereof, a roller, a main bearing and a sub bearing, and a vane for partitioning the compression space into a suction chamber and a compression chamber, wherein the vane includes a vane housing provided with a space portion and a communication hole formed through one side of a front end portion thereof to form a flow path of a compressed refrigerant, and a valve member slidably installed in the space portion of the vane housing and selectively communicating the space portion with the compression chamber, wherein the flow path of the compressed refrigerant is formed by the movement of the valve member.

公开(公告)号：US20180134285A1

公开(公告)日：2018-05-17

申请号：US15572532

申请日：2016-05-06

Applicant: LG Electronics Inc.

Inventor： Ayoung CHO ,  Salkmann JI ,  Joonhong PARK ,  Yungwoo JUNG

IPC: B60W30/09 ,  G05D1/02 ,  B60R1/00 ,  B60K35/00 ,  B60Q9/00 ,  B60W50/14 ,  G08G1/0962 ,  H04N7/18 ,  G06K9/00 ,  H04N5/33 ,  G10L15/22

CPC classification number: B60W30/09 ,  B60K35/00 ,  B60K2370/21 ,  B60Q9/00 ,  B60R1/00 ,  B60R2300/105 ,  B60R2300/30 ,  B60R2300/60 ,  B60R2300/8006 ,  B60R2300/8093 ,  B60W10/06 ,  B60W10/18 ,  B60W10/20 ,  B60W30/08 ,  B60W30/0953 ,  B60W30/0956 ,  B60W50/14 ,  B60W2050/143 ,  B60W2050/146 ,  B60W2420/42 ,  B60W2550/10 ,  G05D1/0246 ,  G06K9/00805 ,  G06K9/00845 ,  G08G1/0962 ,  G08G1/09626 ,  G08G1/165 ,  G08G1/166 ,  G08G1/167 ,  G08G1/168 ,  G10L15/22 ,  G10L2015/223 ,  H04N5/33 ,  H04N7/18 ,  H04N7/181

Abstract: An autonomous driving apparatus and a vehicle including the same are disclosed. The autonomous driving apparatus including a plurality of cameras, and a processor to verify an object around a vehicle based on a plurality of images acquired from the plurality of cameras, calculate hazard severity of the object based on at least one of a movement speed, direction, distance and size of the object, and output a level of hazard severity information corresponding to the calculated hazard severity when the speed of the vehicle is lower than or equal to a first speed or the vehicle is reversed. Thereby, hazard information may be provided based on verification of objects around the vehicle.

公开(公告)号：US20240309870A1

公开(公告)日：2024-09-19

申请号：US18443400

申请日：2024-02-16

Applicant: LG Electronics Inc.

Inventor： Joonhong PARK ,  Seoungmin KANG ,  Jinung SHIN

IPC: F04C18/344 ,  F04C29/02

CPC classification number: F04C18/3441 ,  F04C29/02 ,  F04C2240/50

Abstract: A rotary compressor is disclosed. The rotary compressor may include a casing, a cylinder, main and sub bearings, a rotational shaft, a roller, at least one vane, and a vane support portion that axially supports the at least one vane formed on a bearing surface to extend along a reciprocating direction of the at least one vane from an inner circumferential surface of at least one back pressure pocket at an end of circumferential ends of the at least one back pressure pocket, adjacent to a contact point, and/or protrude axially from the inner circumferential surface of the at least one back pressure pocket and extend in a circumferential direction. This may secure a wide axial support area for a rear end of the at least one vane passing the contact point and/or near the contact point, to suppress or prevent axial tilting of the at least one vane, thereby reducing friction loss, wear, and vibration noise due to the axial tilting of the at least one vane during operation of the compressor.