公开(公告)号：WO2018186628A1

公开(公告)日：2018-10-11

申请号：PCT/KR2018/003779

申请日：2018-03-30

Applicant: LG ELECTRONICS INC.

Inventor： LEE, Yunhi ,  YU, Byeonghun ,  LEE, Byeongchul

IPC: F01C1/22 ,  F01C21/06 ,  F01C21/18 ,  F01C21/04 ,  F02B53/02 ,  F02B55/10

Abstract: A rotary engine having a crankshaft, a housing provided with lobe accommodating portions arranged to surround the crankshaft, and combustion chambers communicating with the lobe accommodating portions, a rotor rotatable eccentrically with respect to the crankshaft and provided with lobes continuously accommodated in the lobe accommodating portions, a housing cover provided with a bearing portion through which the crankshaft is inserted so as to be rotatably supported, and a lubricating unit to supply oil to the bearing portion, wherein the lubricating unit includes an oil pan to accommodate oil therein, an oil pump to pump up oil filled in the oil pan, and an oil supply passage having both ends located in the oil pump and the bearing portion, respectively, is provided. This structure may allow direct and effective lubrication of the bearing portion, and can employ a journal bearing.

公开(公告)号：EP3396134A1

公开(公告)日：2018-10-31

申请号：EP16879178.8

申请日：2016-11-14

Applicant: LG Electronics Inc.

Inventor： YU, Byeonghun ,  LEE, Yunhi ,  LEE, Changeon ,  LEE, Byeongchul ,  LEE, Kamgyu

IPC: F02B55/00 ,  F02B55/02 ,  F02B55/08 ,  F02B55/14 ,  F02B53/02 ,  F02B53/04 ,  F02B53/12 ,  F01C1/08 ,  F01C19/00

CPC classification number: F02B55/08 ,  F01C1/22 ,  F01C19/025 ,  F02B53/04 ,  F04C2250/00 ,  Y02T10/17

Abstract: The present invention provides a rotary engine including a housing having therein N rob accommodating portions (N is a natural number equal to or greater than 3), and combustion chambers communicating with the rob accommodating portions, respectively, a rotor having N-1 robs eccentrically rotating centering on a center of the rob accommodating portions, and consecutively accommodated in the respective rob accommodating portions during the eccentric rotation, and combustion controllers provided at both sides of each combustion chamber, and configured to limit a combustion range of mixed gas, whereby an excessive emission of unburned gas caused in an existing rotary engine can be overcome, efficiency of the engine can be improved, and a rotary engine with an optimized design condition can be provided.

公开(公告)号：EP4286689A1

公开(公告)日：2023-12-06

申请号：EP22217320.5

申请日：2022-12-30

Applicant: LG Electronics, Inc.

Inventor： PARK, Honghee ,  LEE, Jaesang ,  YU, Byeonghun ,  JANG, Sooho

IPC: F04C18/02 ,  F04C29/02

Abstract: A scroll compressor is disclosed. The scroll compressor may include an oil supply hole (1255) penetrating from an oil passage (1253) to an outer circumferential surface of a rotating shaft (125), and an oil supply groove (1256) communicating with the oil supply hole and formed along the outer circumferential surface of the rotating shaft. The oil supply groove may be provided in plurality axially spaced apart by a preset distance. This can prevent the oil supply groove from invading an oil film section and increase centrifugal force against oil in the oil supply groove, thereby suppressing friction loss and wear between a main frame and the rotating shaft.

公开(公告)号：EP4187097A1

公开(公告)日：2023-05-31

申请号：EP22205305.0

申请日：2022-11-03

Applicant: LG Electronics, Inc.

Inventor： JANG, Jinyong ,  SEONG, Sanghun ,  PARK, Honghee ,  YU, Byeonghun

IPC: F04C18/02 ,  F01C21/10 ,  F04C29/12 ,  F04C29/04

Abstract: A scroll compressor according to the present disclosure may include a discharge guide disposed in a high-pressure part to guide refrigerant discharged from a compression part to a refrigerant discharge pipe, and the discharge guide may extend by a preset height from an inner circumferential surface of a casing constituting the high-pressure part toward one side surface of a high and low pressure separation plate. This can guide discharge refrigerant discharged to the high-pressure part to quickly flow to the refrigerant discharge pipe before being spread in an entire space of the high-pressure part, thereby preventing the high and low pressure separation plate from being overheated by discharge refrigerant of high temperature. This can result in preventing suction refrigerant of a low-pressure part from being heated by heat of discharge refrigerant transferred through the high and low pressure separation plate, thereby reducing a specific volume of the suction refrigerant and improving compressor efficiency.