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1. (WO2018079226) REFRIGERATION DEVICE AND REFRIGERATION SYSTEM

Pub. No.:    WO/2018/079226    International Application No.:    PCT/JP2017/036392
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Oct 06 01:59:59 CEST 2017
IPC: F25B 1/00
Applicants: MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD.
三菱重工サーマルシステムズ株式会社
Inventors: MURAKAMI Kenichi
村上 健一
IKEDA Masaki
池田 將樹
OMURA Minemasa
大村 峰正
ENYA Atsushi
塩谷 篤
Title: REFRIGERATION DEVICE AND REFRIGERATION SYSTEM
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.