Title:
HEAT PUMP FOR REFRIGERATION EQUIPMENT, RAPID LIQUID FREEZING DEVICE, PRESSURE REGULATION AND BYPASS CONTROL UNIT, AND REFRIGERATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/183443
Kind Code:
A1
Abstract:
Provided are: a heat pump for refrigeration equipment, said heat pump being capable of rapidly cooling antifreeze for refrigeration equipment to an ultra-low temperature region of -40°C or less without causing oil in the heat pump to run out; and a rapid liquid freezing device using the heat pump for refrigeration equipment. This heat pump for refrigeration equipment comprises an evaporator, compressor and condenser that are connected as a coolant circuit, is configured so that heat cooled by the evaporator is released by the condenser, and is provided with a pressure regulation and bypass control means for compensating for a pressure drop when the pressure of refrigerant sent from the evaporator to the compressor drops.
Inventors:
MAENO KINYA (JP)
FUJISHIMA MASANORI (JP)
FUJISHIMA MASANORI (JP)
Application Number:
PCT/IB2020/052390
Publication Date:
September 17, 2020
Filing Date:
March 16, 2020
Export Citation:
Assignee:
MASH UP CO LTD (JP)
HIKARISYOJI CO LTD (JP)
HIKARISYOJI CO LTD (JP)
International Classes:
F25B41/00; F25B1/00; F25B41/04; F25B41/06; F25D13/00
Domestic Patent References:
WO2019230231A1 | 2019-12-05 |
Foreign References:
JP2016138696A | 2016-08-04 | |||
JP2014020688A | 2014-02-03 | |||
JPH0728710B2 | 1995-04-05 | |||
JPH04292768A | 1992-10-16 | |||
JP2017026197A | 2017-02-02 | |||
JPS50139447A | 1975-11-07 | |||
JP2012097922A | 2012-05-24 | |||
JP2003269809A | 2003-09-25 | |||
JPH08168340A | 1996-07-02 |
Attorney, Agent or Firm:
YONEYAMA, Takeshi (JP)
Download PDF: