Title:
AIR CONDITIONER
Document Type and Number:
Japanese Patent JP2016065655
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an air conditioner capable of simplifying a pipe design around compressors, restricting unbalanced state of lubricant oil at the compressors even if the piping design around the compressors is simplified and performing an efficient distribution of lubricant oil to the compressors.SOLUTION: An air conditioner 10 comprises an outdoor unit 11 including a plurality of compressors 13, 14, an outdoor heat exchanger 17 and an expansion valve 18. A freezing cycle 31 of the air conditioner 10 is carried out in such a way that discharging pipes 35a, 35b of each of the compressors 13, 14 are connected to a high-pressure side refrigerant pipe 35; the suction pipes 38a, 38b of each of the compressors 13, 14 are connected to a low pressure side refrigerant pipe 38 at a merging point through a suction pipe branch part 40; suction pipes 38a, 38b branched from the suction pipe branched part 40 are connected to one compressor 13 where oil is easily returned and the other compressor 14 where oil is hardly returned back to form a returned oil displacing structure and an oil supplying pipe 46 for supplying a surplus oil from a prescribed height position of one compressor 13 where oil is easily returned back to a refrigerant suction side of the other compressor 14 where oil is hardly returned back is connected.SELECTED DRAWING: Figure 1
Inventors:
MIURA MASARU
Application Number:
JP2014193666A
Publication Date:
April 28, 2016
Filing Date:
September 24, 2014
Export Citation:
Assignee:
TOSHIBA CARRIER CORP
International Classes:
F25B1/00; F24F1/30; F24F13/20; F25B31/00; F25B41/00; F25B49/02
Attorney, Agent or Firm:
Patent business corporation Tokyo International Patent Office