公开(公告)号：US20170248353A1

公开(公告)日：2017-08-31

申请号：US15212416

申请日：2016-07-18

Applicant: LG ELECTRONICS INC.

Inventor： Jingyu LEE ,  Jeonghyeon PARK ,  Yeongcheol KO

IPC: F25B31/02 ,  F04C28/26 ,  F25B41/04 ,  F25B13/00 ,  F25B49/02 ,  F04C18/356 ,  F04C29/00

CPC classification number: F25B31/026 ,  F04C18/356 ,  F04C23/008 ,  F04C28/26 ,  F04C29/0085 ,  F04C2210/26 ,  F04C2240/40 ,  F04C2240/806 ,  F04C2270/58 ,  F25B13/00 ,  F25B41/04 ,  F25B49/022 ,  F25B2600/2501

Abstract: A high pressure compressor and a refrigerating cycle device including a high pressure compressor are provided. The high pressure compressor may include a casing in which refrigerant discharged from a compression unit or device is filled into an inner space provided with a drive motor; a suction pipe directly connected to a suction port of the compression unit; a discharge pipe in communication with an inner space of the casing; a first valve provided at the discharge pipe or the suction pipe to control a flow the discharged refrigerant from a high pressure side to a low pressure side when the drive motor is stopped; a bypass pipe connected between a discharge side and a suction side based on the compression device; and a second valve provided at the bypass pipe to move refrigerant at the high pressure side to the low pressure side through the bypass pipe, thereby allowing a differential pressure operation to continue when the compressor is stopped, to enhance energy efficiency as well as allowing a suction pressure and a discharge pressure to rapidly reach an equilibrium pressure during restart so as to efficiently perform the restart.

公开(公告)号：US20170248356A1

公开(公告)日：2017-08-31

申请号：US15345561

申请日：2016-11-08

Applicant: LG ELECTRONICS INC.

Inventor： Jingyu LEE ,  Jeonghyeon PARK ,  Yeongcheol KO

IPC: F25B49/00 ,  F25B49/02

Abstract: A high pressure compressor according to the present disclosure and a refrigerating cycle device to which the high pressure compressor is applied may include a casing having a sealed inner space; drive motor provided in the inner space of the casing; a compression unit provided in the inner space of the casing, and provided with a compression space for compressing refrigerant, and provided with a suction port for guiding refrigerant into the compression space, and provided with a discharge port for guiding refrigerant compressed in the compression space into the inner space of the casing a discharge valve provided in the compression unit to selectively open or close the discharge port according to a difference between a pressure of the inner space of the casing and a pressure of the compression space of the compression unit; a first valve configured to suppress refrigerant discharged from the inner space of the casing from flowing backward into the inner space of the casing; a bypass pipe connected between a discharge side and a suction side of the compression unit based on the compression unit; and a second valve provided at the bypass pipe to selectively open or close the bypass pipe.

公开(公告)号：US20160341199A1

公开(公告)日：2016-11-24

申请号：US15091676

申请日：2016-04-06

Applicant: LG ELECTRONICS INC.

Inventor： Changjun NOH ,  Yeongcheol KO

IPC: F04C18/113 ,  F04C29/00

CPC classification number: F04C18/113 ,  F04C18/356 ,  F04C23/008 ,  F04C29/0085 ,  F04C2230/231 ,  F04C2240/30

Abstract: A rotary compressor and a method for manufacturing a rotary compressor are provided. The rotary compressor may include a first case in which a stator may be provided, and a second case provided at one side of the first case and to which a compression mechanism may be coupled. The second case may include a first extension to which the compression mechanism may be welded, a step that extends to be stepped from the first extension, and a second extension that extends from the step. The second extension may be welded to the first case.

Abstract translation: 提供一种旋转式压缩机和旋转式压缩机的制造方法。 旋转压缩机可以包括其中可以设置定子的第一壳体和设置在第一壳体的一侧并且可以联接压缩机构的第二壳体。 第二壳体可以包括可以焊接压缩机构的第一延伸部，从第一延伸部延伸到阶梯状的台阶，以及从台阶延伸的第二延伸部。 第二延伸部可以焊接到第一壳体。