Title:
REFRIGERATING DEVICE
Document Type and Number:
Japanese Patent JP2015206555
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerating device capable of securing reliability by improving responsiveness in heating operation.SOLUTION: A refrigerating device 100 includes a multistage compression mechanism 11, an outdoor heat exchanger 12, first to fourth switching mechanisms 31-34, first to fourth oil separators 41-44, and first to third bypass pipes. The multistage compression mechanism 11 includes a first compression mechanism 21, a second compression mechanism 22, a third compression mechanism 23 and a fourth compression mechanism 24. The outdoor heat exchanger 12 includes a first intercooler 51, a second intercooler 52, a third intercooler 53 and a gas cooler 54. The first to the fourth switching mechanisms 31-34 switch between a first state in which the outdoor heat exchanger 12 is used as a radiator and a second state in which the outdoor heat exchanger 12 is used as an evaporator. The first to the third bypass pipes are pipes through which coolant heat-exchanged by the outdoor heat exchanger 12 passes in the second state, and bypass the first to the third oil separators 41-43.
Inventors:
IWATA YASUHIRO
OKAMOTO TETSUYA
KAJI RYUHEI
KOSHO KAZUHIRO
OKAMOTO TETSUYA
KAJI RYUHEI
KOSHO KAZUHIRO
Application Number:
JP2014088025A
Publication Date:
November 19, 2015
Filing Date:
April 22, 2014
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B1/00; F25B1/10; F25B13/00; F25B43/02
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation