Title:
VEHICLE AIR CONDITIONING SYSTEM AND VEHICLE AIR CONDITIONING METHOD
Document Type and Number:
WIPO Patent Application WO/2023/017763
Kind Code:
A1
Abstract:
The present invention provides a vehicle air conditioning system and a vehicle air conditioning method that increase heating performance while recovering exhaust heat from onboard equipment. The vehicle air conditioning system comprises: a refrigerant circuit; a heat medium circuit including a high-temperature medium circuit and a low-temperature medium circuit; an interior heat exchanger that exchanges heat between a heat medium and air; an exterior heat exchanger that exchanges heat between the heat medium and outside air; an exhaust heat recovery circuit; and a switching part. The following are provided as operating modes: an exhaust heat–recovery heating mode in which the heat medium in the high-temperature medium circuit is supplied to the interior heat exchanger and exhaust heat from onboard equipment is recovered by the heat medium in the low-temperature medium circuit, while the heat medium that has recovered and transferred exhaust heat to the refrigerant is supplied to the exterior heat exchanger; and an exhaust-heat-as-main-heat-source heating mode in which the heat medium in the high-temperature medium circuit is supplied to the interior heat exchanger and exhaust heat from onboard equipment is recovered by the heat medium in the low-temperature medium circuit, while the heat medium that has recovered and transferred exhaust heat to the refrigerant is caused to bypass the exterior heat exchanger.
Inventors:
TANABE HIROTAKA (JP)
KOBAYASHI TAKAYUKI (JP)
HASE TOMOKI (JP)
AOKI YASUTAKA (JP)
TATENOI HIDEAKI (JP)
KOBAYASHI TAKAYUKI (JP)
HASE TOMOKI (JP)
AOKI YASUTAKA (JP)
TATENOI HIDEAKI (JP)
Application Number:
PCT/JP2022/029777
Publication Date:
February 16, 2023
Filing Date:
August 03, 2022
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
B60H1/22; B60H1/00
Foreign References:
| JP2006321389A | 2006-11-30 | |||
| JP2021014201A | 2021-02-12 | |||
| JPH11286211A | 1999-10-19 | |||
| JP2014117999A | 2014-06-30 | |||
| JP6540180B2 | 2019-07-10 |
Attorney, Agent or Firm:
OBA, Mitsuru et al. (JP)
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