Title:
REFRIGERATION DEVICE
Document Type and Number:
Japanese Patent JP2015224830
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To suppress drift of a refrigerating machine oil between heat source units when a heat source-side heat exchanger functions as an evaporator of a refrigerant in a refrigeration device in which a plurality of heat source units and a utilization unit are connected through a first gas-refrigerant communication tube, a liquid-refrigerant communication tube, and a second gas-refrigerant communication tube.SOLUTION: In each heat source unit, second heat source-side low-pressure gas tubes 39a, 39b connected to an outlet of a heat source-side heat exchanger functioning as an evaporator of a refrigerant, are connected to middle parts of first heat source-side low-pressure gas tubes 38a, 38b connecting an end portion, on a heat source unit side, of a second gas refrigerant communication tube with a suction side of compressors 21a, 21b. The first heat source-side low-pressure gas tubes 38a, 38b form first and second raised portions 41a, 42a, 41b, 42b raised to be higher than connecting parts 40a, 40b with the second heat source-side low-pressure gas tubes.
Inventors:
MINAMI JUNYA
OKA MASAHIRO
KOIKE SHIRO
OKA MASAHIRO
KOIKE SHIRO
Application Number:
JP2014110072A
Publication Date:
December 14, 2015
Filing Date:
May 28, 2014
Export Citation:
Assignee:
DAIKIN IND LTD
International Classes:
F25B5/02; F25B6/02; F25B13/00; F25B29/00
Domestic Patent References:
| JPH11108506A | 1999-04-23 | |||
| JPH07318176A | 1995-12-08 | |||
| JPH10141787A | 1998-05-29 | |||
| JPH02147762U | 1990-12-14 | |||
| JP2012141112A | 2012-07-26 |
Foreign References:
| WO2008090926A1 | 2008-07-31 |
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation