Title:
EJECTOR-TYPE REFRIGERATION CYCLE
Document Type and Number:
WIPO Patent Application WO/2019/208428
Kind Code:
A1
Abstract:
An ejector-type refrigeration cycle (10) comprising a compressor (11), a radiator (12), a high-stage-side pressure reduction unit (14a), a high-stage-side evaporator (15), a low-stage side pressure reduction unit (14c), a low-stage-side evaporator (18), a branching unit (13a), and an ejector (16). The branching unit (13a) divides a refrigerant flow downstream from the radiator (12), causing one divided flow of refrigerant to flow toward the high-stage-side pressure reduction unit (14a) and another divided flow of refrigerant to flow toward the low-stage-side pressure reduction unit (14c). The ejector (16) has a pressure-increasing unit (16a) that draws in, from a refrigerant intake opening (16c), the refrigerant flowing from the low-stage-side evaporator (18), increases the pressure of a mixed refrigerant comprising an injection refrigerant and the indrawn refrigerant, and causes the mixed refrigerant to flow toward the intake-opening side of the compressor (11). In addition, the ejector-type refrigeration cycle (10) is equipped with an enthalpy adjustment unit (14b, 17) that lowers the enthalpy of the refrigerant flowing to the low-stage-side evaporator (18).
Inventors:
TAKEICHI KOTA (JP)
OGATA GOTA (JP)
OSHITANI HIROSHI (JP)
OGATA GOTA (JP)
OSHITANI HIROSHI (JP)
Application Number:
PCT/JP2019/016802
Publication Date:
October 31, 2019
Filing Date:
April 19, 2019
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F25B1/00; F25B5/02; F25B43/00
Foreign References:
| JP2015224861A | 2015-12-14 | |||
| JP2017072291A | 2017-04-13 | |||
| JP2007057156A | 2007-03-08 | |||
| JP2012220162A | 2012-11-12 | |||
| JP2005308380A | 2005-11-04 | |||
| JP2012149790A | 2012-08-09 |
Attorney, Agent or Firm:
KAI-SEI PATENT FIRM (JP)
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