公开(公告)号：USRE49937E1

公开(公告)日：2024-04-23

申请号：US17000673

申请日：2020-08-24

Applicant: LG ELECTRONICS INC.

Inventor： Gukhyun Cho ,  Yunhi Lee ,  Byeongchul Lee

IPC: F01C21/08 ,  F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C15/00 ,  F04C18/324 ,  F04C18/356 ,  F04C23/00 ,  F04C29/00

CPC classification number: F01C21/0809 ,  F04C18/324 ,  F04C18/356 ,  F04C23/008 ,  F04C29/00

Abstract: A compressor including a hinge recess formed at a rolling piston and a hinge protrusion formed at a vane to be inserted into the hinge recess. A diameter of the hinge protrusion is greater than an interval between both ends of an opening of the hinge recess. A bearing surface, which comes in contact with an inner circumferential surface of the hinge recess, of an outer circumferential surface of the hinge protrusion, has a circumferential surface below 90° at both sides, respectively, based on a central line in a lengthwise direction of the vane. This structure may facilitate cutting and grinding of the bearing surface so as to produce machining costs, and also improve a machining degree and thus stabilize behaviors of the rolling piston and the vane so as to enhance compression efficiency.

公开(公告)号：US10550696B2

公开(公告)日：2020-02-04

申请号：US15506300

申请日：2015-08-19

Applicant: LG ELECTRONICS INC.

Inventor： Gukhyun Cho ,  Yunhi Lee ,  Byeongchul Lee

IPC: F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F04C15/00 ,  F01C21/08 ,  F04C18/324 ,  F04C18/356 ,  F04C23/00 ,  F04C29/00

Abstract: A compressor including a hinge recess formed at a rolling piston and a hinge protrusion formed at a vane to be inserted into the hinge recess. A diameter of the hinge protrusion is greater than an interval between both ends of an opening of the hinge recess. A bearing surface, which comes in contact with an inner circumferential surface of the hinge recess, of an outer circumferential surface of the hinge protrusion, has a circumferential surface below 90° at both sides, respectively, based on a central line in a lengthwise direction of the vane. This structure may facilitate cutting and grinding of the bearing surface so as to reduce machining costs, and also improve a machining degree and thus stabilize behaviors of the rolling piston and the vane so as to enhance compression efficiency.

公开(公告)号：US11002279B2

公开(公告)日：2021-05-11

申请号：US16038340

申请日：2018-07-18

Applicant: LG ELECTRONICS INC.

Inventor： Gukhyun Cho ,  Sedong Lee ,  Bumdong Sa

IPC: F04C29/12 ,  F04C2/356 ,  F04C15/00 ,  F04C23/00

Abstract: A rotary compressor includes a cylinder with a vane slot and a suction port. A vane is slidably disposed in the vane slot. The suction port guides fluid to a compression chamber at one circumferential end of the vane slot. The suction port may be formed in a recessed manner in a radial direction such that at least an end of the suction port in contact with an inner circumferential surface of the cylinder forms a slot shape extending between opposite axial side surfaces of the cylinder. A circumferential length of the suction port is reduced from conventional suction ports as a result of the slot configuration, thereby advancing the compression start angle, and a partition wall portion between the suction port and the vane slot may have elasticity, thereby suppressing close contact between the vane and the vane slot.