Title:
REFRIGERATION DEVICE AND REFRIGERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/079226
Kind Code:
A1
Abstract:
This refrigeration device (3) is provided with: multiple compressors (31) each of which has an oil pod (315) storing a lubricant oil; a level sensor (318) which detects when the level of the lubricant oil in the oil pods (315) falls to a predetermined reference level (LS); a communication tube (43) which allows communication between the oil pods (315) of the compressors (31); and a controller (100) which, when the level sensor (318) detects, in one of the multiple compressors (31), that the level has fallen to the reference level (LS), operates the multiple compressors (31) at mutually different rotation speeds.
Inventors:
MURAKAMI KENICHI (JP)
IKEDA MASAKI (JP)
OMURA MINEMASA (JP)
ENYA ATSUSHI (JP)
IKEDA MASAKI (JP)
OMURA MINEMASA (JP)
ENYA ATSUSHI (JP)
Application Number:
PCT/JP2017/036392
Publication Date:
May 03, 2018
Filing Date:
October 05, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
F25B1/00
Domestic Patent References:
| WO2010021137A1 | 2010-02-25 |
Foreign References:
| JP2011226714A | 2011-11-10 | |||
| JPH01193088A | 1989-08-03 | |||
| JPH01203848A | 1989-08-16 | |||
| JP2001201219A | 2001-07-27 |
Other References:
See also references of EP 3492836A4
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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