Title:
VEHICLE AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/248706
Kind Code:
A1
Abstract:
[Problem] To prevent liquid condensation in a compressor while maintaining heating capacity even when the outside air temperature is particularly low. [Solution] Provided is a vehicle air conditioning device comprising a refrigerant circuit in which a compressor, a condenser, an expansion unit, an evaporator, and a gas-liquid separation unit are connected in this order by refrigerant piping and a refrigerant is made to circulate, wherein the refrigerant circuit comprises: a first bypass path that causes refrigerant discharged from the compressor to flow into the inlet side of the gas-liquid separation unit; and an internal heat exchanger that causes heat exchange between refrigerant flowing toward the compressor from the gas-liquid separation unit and refrigerant flowing out from the condenser.
Inventors:
SHIMIZU NOBUTAKA (JP)
Application Number:
PCT/JP2023/019679
Publication Date:
December 28, 2023
Filing Date:
May 26, 2023
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
F25B1/00; B60H1/22; F25B40/00
Domestic Patent References:
| WO2018173854A1 | 2018-09-27 | |||
| WO2016117128A1 | 2016-07-28 | |||
| WO2004030957A1 | 2004-04-15 |
Foreign References:
| JPS59145453A | 1984-08-20 | |||
| JPH01102254A | 1989-04-19 | |||
| JP2008261557A | 2008-10-30 | |||
| JP2006242402A | 2006-09-14 | |||
| JP2017030724A | 2017-02-09 |
Download PDF: