Title:
CONSTANT-TEMPERATURE TRANSPORT SYSTEM, VEHICLE, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2023/162415
Kind Code:
A1
Abstract:
The present invention provides a control method, a vehicle, and a constant-temperature transport system capable of suppressing a reduction in heating performance. The constant-temperature transport system comprises: a compressor (21) that compresses a refrigerant; an exterior heat exchanger (24) connected to the downstream side of the compressor (21); an interior heat exchanger (29) connected to the downstream side of the exterior heat exchanger (24); a hot gas bypass pathway (33) that is connected to the discharge side of the compressor (21) and that supplies the refrigerant to the interior heat exchanger (29) by bypassing the external heat exchanger (24); an expansion valve (34) provided to the hot gas bypass pathway (33); a temperature detection unit (35) that detects the temperature of air affected by the interior heat exchanger (29); a pressure detection unit (36) that detects the pressure of the refrigerant on the outlet side of the interior heat exchanger (29); and a control unit that controls the expansion valve (34) such that, on the outlet side of the interior heat exchanger (29), the saturation temperature, which is dependent on the pressure, is lower than the temperature by a prescribed temperature.
Inventors:
NISHII TOMOHIRO (JP)
TANAKA TAKASHI (JP)
MORISHITA MASATOSHI (JP)
KOBAYASHI NAOKI (JP)
YAMAGISHI HIROKI (JP)
WATANABE YASUSHI (JP)
HASHIZUME YOSHIHIRO (JP)
TANAKA TAKASHI (JP)
MORISHITA MASATOSHI (JP)
KOBAYASHI NAOKI (JP)
YAMAGISHI HIROKI (JP)
WATANABE YASUSHI (JP)
HASHIZUME YOSHIHIRO (JP)
Application Number:
PCT/JP2022/045903
Publication Date:
August 31, 2023
Filing Date:
December 13, 2022
Export Citation:
Assignee:
MITSUBISHI HEAVY IND THERMAL SYSTEMS LTD (JP)
International Classes:
F25B1/00; B60P3/20; F25B1/10; F25B43/00
Domestic Patent References:
| WO2021085529A1 | 2021-05-06 |
Foreign References:
| JP2013204922A | 2013-10-07 | |||
| JP2006194582A | 2006-07-27 | |||
| JP2015025578A | 2015-02-05 | |||
| JP2006052898A | 2006-02-23 | |||
| JP2017187189A | 2017-10-12 |
Attorney, Agent or Firm:
FUJITA, Takaharu (JP)
Download PDF: