公开(公告)号：US12221974B2

公开(公告)日：2025-02-11

申请号：US17893508

申请日：2022-08-23

Applicant: LG ELECTRONICS INC.

Inventor： Changgook Moon ,  Junchul Oh ,  Byeongchul Lee ,  Taeyang Kim

IPC: F04D17/12 ,  F04D25/06 ,  F04D25/16 ,  F04D29/053 ,  F04D29/20 ,  F04D29/58 ,  F04D29/62

Abstract: A turbo compressor is disclosed. The turbo compressor may have an assembly-type rotational shaft where a permanent magnet is inserted into a connecting sleeve, at least one first locking projection formed on either an inner periphery of the connecting sleeve or an outer periphery of the permanent magnet facing the inner periphery of the connecting sleeve, and at least one first locking groove formed on the other. Thus, the permanent magnet constituting a rotor may be easily coupled into the rotational shaft, and the permanent may be effectively prevented from slipping. Moreover, a magnet embedded in the rotational shaft may be securely fixed so that it is held in a position where it is assembled, thus providing an advantage in concentrically aligning the magnet.

公开(公告)号：US11193529B2

公开(公告)日：2021-12-07

申请号：US16812806

申请日：2020-03-09

Applicant: LG Electronics Inc.

Inventor： Changgook Moon ,  Jun Chul Oh ,  Seheon Choi

IPC: F16C17/04 ,  F04D29/051

Abstract: Disclosed herein is a thrust bearing for a turbo compressor, the thrust bearing has a structure that is modified in response to a portion where a deformation amount of a thrust runner is relatively large on the basis of magnitude of a force applied at the time of rotation of a shaft of a turbo compressor, to maintain a thickness of an oil film constantly and to increase a load supporting force of the thrust bearing, thereby ensuring improved durability of the thrust bearing.