Title:
REFRIGERATING DEVICE AND HEAT PUMP
Document Type and Number:
Japanese Patent JP2016161190
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigerating device and a heat pump that quickly eliminate a shortage of lubricating oil for each compressor.SOLUTION: A refrigerating device 10 comprises: a refrigerant circuit that performs a refrigeration cycle; a communicating tube 31; and a communicating valve 37. The refrigerant circuit comprises: a low-stage compressor 12 that compresses and discharges a refrigerant; a low-stage oil separator 14 that separates lubricating oil from the discharged refrigerant; a high-stage compressor 16 that compresses and discharges the refrigerant from which the lubricating oil was separated; and a high-stage oil separator 18. The communicating tube 31 causes a bottom part of the low-stage compressor 12 to communicate with a bottom part of the high-stage compressor 16. The communicating valve 37 is provided in the communicating tube 31 and controls the lubricating oil in the communicating tube 31.SELECTED DRAWING: Figure 2
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Inventors:
UKIBUNE MASANORI
OKAMOTO MASAKAZU
ONO MASAO
O MEIJIN
OKAMOTO MASAKAZU
ONO MASAO
O MEIJIN
Application Number:
JP2015039224A
Publication Date:
September 05, 2016
Filing Date:
February 27, 2015
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B1/00; F25B1/10; F25B43/02
Domestic Patent References:
| JP2013139902A | 2013-07-18 | |||
| JP2013024447A | 2013-02-04 | |||
| JP2007093017A | 2007-04-12 |
Attorney, Agent or Firm:
Maeda patent office
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