Invention Grant
- Patent Title: Refrigerating cycle apparatus and method for operating the same
- Patent Title (中): 制冷循环装置及其操作方法
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Application No.: US14503756Application Date: 2014-10-01
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Publication No.: US09377231B2Publication Date: 2016-06-28
- Inventor: Minkyu Oh , Jangseok Lee , Myungjin Chung , Chanho Jeon , Sunam Chae , Juyeong Heo , Kwangwook Kim , Hoyoun Lee
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Ked & Associates, LLP
- Priority: KR10-2011-0055044 20110608; KR10-2012-0049898 20120510
- Main IPC: F25B49/02
- IPC: F25B49/02 ; F25B1/10 ; F25B31/00 ; F25B43/02

Abstract:
A refrigerating cycle apparatus and a method of operating the same are provided. For a refrigerating cycle having a plurality of compressors connected in series for multi-stage compression, an inner space of each compressor and a pipe of the refrigerating cycle may be connected via an oil collection pipe, and oil may be discharged into the refrigerating cycle by pressure reversal during a pressure balancing operation, so as to allow the discharged oil to be collected into a high-stage compressor or a low-stage compressor. Accordingly, an amount of oil may be uniformly maintained in each of the plurality of compressors to prevent losses due to friction and/or increases in power consumption due to a lack of oil in one or more of the compressors. The structure of a device and pipes for performing oil balancing between the compressors may be simplified to enhance efficiency of the compressors.
Public/Granted literature
- US20150068229A1 REFRIGERATING CYCLE APPARATUS AND METHOD FOR OPERATING THE SAME Public/Granted day:2015-03-12
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