AIR-CONDITIONING DEVICE

WIPO Patent Application WO/2024/048284

A1

Provided is a vehicle air-conditioning device including: a compressor that compresses a refrigerant; a heating unit that heats an object to be heated by the refrigerant discharged from the compressor; an accumulator that separates liquid content in the refrigerant taken in by the compressor; a circulation flow path that guides the refrigerant that has passed through the heating unit to the accumulator; a bypass flow path that joins the refrigerant discharged from the compressor without passing through the heating unit at a first joining part (JP1) of the circulation flow path; a restrictor valve (40) that is disposed on the circulation flow path and that reduces the pressure of the refrigerant flowing out from the heating unit; and a restrictor valve that is disposed on the bypass flow path and that reduces the pressure of the refrigerant discharged from the compressor. The first joining part (JP1) is disposed: more to the accumulator side than the restrictor valve (40) of the circulation flow path; and in a first spray area (SA1) of the refrigerant by the restrictor valve (40).

JP2005306197	CONTROLLER OF VEHICLE
JP6573794	Freezing and refrigerating hybrid vehicles
WO/2007/097445	HEATER UNIT, AND SHEET HEATER FOR VEHICLE

ADACHI TOMOYASU (JP)
NAKAGAWA NOBUYA (JP)
KOBAYASHI TAKAYUKI (JP)
YAMAMOTO HIROYUKI (JP)
NOYAMA HIDETO (JP)
SAITO KATSUHIRO (JP)
MORISHITA MASATOSHI (JP)

PCT/JP2023/029626

March 07, 2024

August 16, 2023

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MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)

B60H1/22; F25B1/00; F25B41/45

JP2019104350A	2019-06-27
JP2019051832A	2019-04-04
JP2017101868A	2017-06-08
JP2009216285A	2009-09-24

FUJITA, Takaharu (JP)

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