公开(公告)号：US20220145872A1

公开(公告)日：2022-05-12

申请号：US17491682

申请日：2021-10-01

申请人： LG ELECTRONICS INC.

发明人： Mingeon JEONG ,  Bokann Park ,  Kyoungjun Park ,  Seeun Kim

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

摘要： 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.