公开(公告)号：US20250116266A1

公开(公告)日：2025-04-10

申请号：US18830106

申请日：2024-09-10

Applicant: LG Electronics Inc.

Inventor： Kyungmin LEE ,  Youngboo SON ,  Mingeon JEONG

IPC: F04B39/12

Abstract: A reciprocating compressor includes a shell, a driving motor, a drive shaft, a piston, a cylinder block, and a support plate disposed between the driving motor and the cylinder block to support the cylinder block with respect to the drive motor in an axial direction of the drive shaft. The support plate has one side surface coupled to the stator and another side surface coupled to the cylinder block. The reciprocating compressor is light-weighted and/or miniaturized by reducing a weight of the cylinder block, and perpendicularity and roundness with respect to the cylinder portion and the bearing portion is secured to improve reliability.

公开(公告)号：US20220145872A1

公开(公告)日：2022-05-12

申请号：US17491682

申请日：2021-10-01

Applicant: LG ELECTRONICS INC.

Inventor： Mingeon JEONG ,  Bokann Park ,  Kyoungjun Park ,  Seeun Kim

IPC: F04B39/02 ,  F04B39/00 ,  F04B35/04

Abstract: A hermetic compressor may include a frame, a crankshaft, and an oil pump. The crankshaft may be rotatably mounted to the frame. The oil pump may be mounted to a lower portion of the crankshaft to be rotatable together with the crankshaft. The oil pump may pump oil from a lower region to an upper region of a shell using centrifugal force. The crankshaft may be provided with a hollow hole therein that is inclined in two directions with respect to an axial direction of the crankshaft. This may result in increasing a dynamic pressure for scattering the oil to the upper region of the shell and an oil supply amount.