-
公开(公告)号：US10100832B2
公开(公告)日：2018-10-16
申请号：US14731589
申请日：2015-06-05
Applicant: LG ELECTRONICS INC.
Inventor： Taekyoung Kim , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include a casing; an electric motor drive having a stator fixed within the casing, and a rotor rotatably provided within the stator; a rotational shaft coupled to the rotor to rotate along with the rotor; a compression device disposed at a lower portion of the electric motor drive to receive a rotational force from the rotational shaft and compress a refrigerant; and an oil storage space located within the casing. A plurality of oil discharge paths to allow oil accumulated at an upper portion thereof to be discharged to the oil storage space may be formed on an outer circumferential surface of the compression device to be separated from each other, and an overall cross-sectional area of the plurality of oil discharge paths may be about 2 to about 12% of an inner diameter cross-sectional area of the casing brought into contact with or separated from an outer circumferential surface of the compression device in the compression device.
-
公开(公告)号：US10041493B2
公开(公告)日：2018-08-07
申请号：US14710704
申请日：2015-05-13
Applicant: LG ELECTRONICS INC.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim
Abstract: A scroll compressor is provided that may include a first scroll provided with a discharge port, a second scroll engaged with the first scroll to form a first compression chamber and a second compression chamber, and a rotational shaft provided with an eccentric portion eccentrically coupled to the first scroll or the second scroll The eccentric portion may overlap the first and second compression chambers in a radial direction. The discharge port may be provided with at least one discharge inlet and a discharge outlet The at least one discharge inlet may include a plurality of discharge inlets, which have different areas from each other, whereby a refrigerant of each compression chamber may be smoothly discharged, thereby preventing an over-compression loss due to a delay of discharge.
-
公开(公告)号：US11927191B2
公开(公告)日：2024-03-12
申请号：US17566000
申请日：2021-12-30
Applicant: LG Electronics Inc.
Inventor： Nayoung Jeon , Sangbaek Park , Cheolhwan Kim
CPC classification number: F04C29/12 , F04C18/0215 , F04C23/008 , F04C29/026 , F04C2240/30 , F04C2240/40
Abstract: A scroll compressor includes a flow path guide disposed between a motor unit and a compression unit to separate a refrigerant flow path and an oil flow path. A guide discharge hole communicating with a discharge passage of the compression unit is formed axially through the flow path guide and a guide passage communicating with the guide discharge hole is annularly defined, such that a discharge guide protrusion surrounding the guide discharge hole extends toward the motor unit. Accordingly, inner and outer spaces of the flow path guide can communicate with each other while the refrigerant flow path and the oil flow path are separated, which results in securing a space of an oil recovery passage to allow quick oil recovery and simplifying a structure of the flow path guide to reduce manufacturing costs.
-
公开(公告)号：US11713752B2
公开(公告)日：2023-08-01
申请号：US17075198
申请日：2020-10-20
Applicant: LG Electronics Inc.
Inventor： Taekyoung Kim , Kyungho Lee , Cheolhwan Kim
CPC classification number: F04B27/109 , F04B39/0253 , F04C29/025 , F04C29/065
Abstract: A compressor includes a driving motor, a centrifugation space, a discharge pipe, a rotary shaft, a compression portion, a pump assembly, and an oil pickup. The centrifugation space is defined inside a case by a downstream side of the driving motor and the case, and enables centrifugation of a compressed refrigerant and a lubricant oil. The discharge pipe can discharge the refrigerant from the centrifugation space outside the case. The rotary shaft is coupled to a rotor of the driving motor and defines an oil supply path. The compression portion is provided at an upstream side of the driving motor and can compress the refrigerant as the rotary shaft rotates. The pump assembly is provided below the rotary shaft and can pump oil as rotated with the rotary shaft. The oil pickup defines an oil supply path between the pump assembly and a low oil space formed inside the case.
-
公开(公告)号：US11560795B2
公开(公告)日：2023-01-24
申请号：US16817041
申请日：2020-03-12
Applicant: LG Electronics Inc.
Inventor： Kyungho Lee , Sangbaek Park , Cheolhwan Kim
Abstract: Disclosed is a scroll type compressor having an Oldham's ring having an asymmetrical structure with respect to a long or minor axis thereof.
-
Patent Agency Ranking
公开(公告)号：US20220364560A1
公开(公告)日：2022-11-17
申请号：US17874485
申请日：2022-07-27
Applicant: LG Electronics Inc.
Inventor： Yongkyu Choi , Kangwook Lee , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. In a state in which the orbiting scroll and the fixed scroll are concentric with each other, when a distance between the orbiting wrap and the fixed wrap is defined as an orbiting radius, there exists an offset section having an interval larger than the orbiting radius, between a side surface of the orbiting wrap and a side surface of the fixed wrap which faces the orbiting wrap. With such a configuration, even if the fixed scroll or the orbiting scroll is transformed due to thermal expansion, interference between the fixed wrap and the orbiting wrap at a portion having a large transformation amount may be prevented. This may prevent a frictional loss or abrasion between the fixed wrap and the orbiting wrap. Further, this may restrict or minimize a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction chamber, resulting in enhanced compression efficiency.
-
公开(公告)号：US11434909B2
公开(公告)日：2022-09-06
申请号：US17260098
申请日：2019-07-12
Applicant: LG Electronics Inc.
Inventor： Kangwook Lee , Jungsun Choi , Cheolhwan Kim
IPC: F04C18/02
Abstract: Provided is a compressor apparatus comprising: a casing defining appearance of the apparatus; and a drive portion coupled to an inner circumferential surface of the casing and configured to rotate a rotatable shaft; a compression portion coupled to the rotatable shaft and configured to compress fluid, wherein the compression portion apparatus is characterized in that the drive portion and the compression portion are fixed to the fastening member which is detachably attached to at least one of the side face of the drive portion or the side face of the compression portion and thus, the combination of the drive portion and the compression portion is coupled to an inner circumferential surface of the casing. Further, provided is a manufacturing method of the compression portion apparatus.
-
公开(公告)号：USRE49074E1
公开(公告)日：2022-05-17
申请号：US16850331
申请日：2020-04-16
Applicant: LG ELECTRONICS INC.
Inventor： Taekyoung Kim , Cheolhwan Kim , Byeongchul Lee
Abstract: A scroll compressor is provided that may include a casing; an electric motor drive having a stator fixed within the casing, and a rotor rotatably provided within the stator; a rotational shaft coupled to the rotor to rotate along with the rotor; a compression device disposed at a lower portion of the electric motor drive to receive a rotational force from the rotational shaft and compress a refrigerant; and an oil storage space located within the casing. A plurality of oil discharge paths to allow oil accumulated at an upper portion thereof to be discharged to the oil storage space may be formed on an outer circumferential surface of the compression device to be separated from each other, and an overall cross-sectional area of the plurality of oil discharge paths may be about 2 to about 12% of an inner diameter cross-sectional area of the casing brought into contact with or separated from an outer circumferential surface of the compression device in the compression device.
-
公开(公告)号：US11293439B2
公开(公告)日：2022-04-05
申请号：US16600023
申请日：2019-10-11
Applicant: LG ELECTRONICS INC.
Inventor： Seungmock Lee , Cheolhwan Kim
Abstract: A compressor includes: a case including a discharge part configured to discharge refrigerant and defining a reservoir space configured to store oil; a drive unit including a stator and a rotor; a rotary shaft coupled to the rotor; a compression unit coupled to the rotary shaft and lubricated with oil, the compression unit being configured to compress refrigerant and discharge compressed refrigerant in a direction away from the discharge part; a muffler coupled to the compression unit and configured to guide refrigerant to the discharge part; a separator coupled to at least one of the rotor or the rotary shaft and configured to separate oil from refrigerant guided to the discharge part; and a coupling unit that fixes the separator to the at least one of the rotor or the rotary shaft.
-
公开(公告)号：US20200095994A1
公开(公告)日：2020-03-26
申请号：US16693450
申请日：2019-11-25
Applicant: LG Electronics Inc.
Inventor： Cheolhwan Kim , Yongkyu Choi , Taekyoung Kim
Abstract: A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. A wrap thickness of the fixed wrap may be greater than a wrap thickness of the orbiting wrap within a range which forms the suction chamber. With such a configuration, even if the fixed scroll or the orbiting scroll is thermally-expanded, a transformation of the fixed wrap at a suction side may be prevented. This may prevent a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction side, thereby enhancing compression efficiency.
-
-
-
-
-
-
-
-
-
Search Results
78
records
(took 0.058 seconds)
